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 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 #include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 #include <openssl/engine.h>
163 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL *,int))ssl_undefined_function,
168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
171 (int (*)(SSL*, int))ssl_undefined_function,
172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
173 0, /* finish_mac_length */
174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
175 NULL, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function
182 int SSL_clear(SSL *s)
185 if (s->method == NULL)
187 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
191 if (ssl_clear_bad_session(s))
193 SSL_SESSION_free(s->session);
201 #if 0 /* Disabled since version 1.10 of this file (early return not
202 * needed because SSL_clear is not called when doing renegotiation) */
203 /* This is set if we are doing dynamic renegotiation so keep
204 * the old cipher. It is sort of a SSL_clear_lite :-) */
205 if (s->new_session) return(1);
209 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
216 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
218 s->version=s->method->version;
219 s->client_version=s->version;
220 s->rwstate=SSL_NOTHING;
221 s->rstate=SSL_ST_READ_HEADER;
223 s->read_ahead=s->ctx->read_ahead;
226 if (s->init_buf != NULL)
228 BUF_MEM_free(s->init_buf);
232 ssl_clear_cipher_ctx(s);
233 ssl_clear_hash_ctx(&s->read_hash);
234 ssl_clear_hash_ctx(&s->write_hash);
239 /* Check to see if we were changed into a different method, if
240 * so, revert back if we are not doing session-id reuse. */
241 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
243 s->method->ssl_free(s);
244 s->method=s->ctx->method;
245 if (!s->method->ssl_new(s))
250 s->method->ssl_clear(s);
254 /** Used to change an SSL_CTXs default SSL method type */
255 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
257 STACK_OF(SSL_CIPHER) *sk;
261 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
262 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
263 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
265 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
271 SSL *SSL_new(SSL_CTX *ctx)
277 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
280 if (ctx->method == NULL)
282 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
286 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
287 if (s == NULL) goto err;
288 memset(s,0,sizeof(SSL));
290 #ifndef OPENSSL_NO_KRB5
291 s->kssl_ctx = kssl_ctx_new();
292 #endif /* OPENSSL_NO_KRB5 */
294 s->options=ctx->options;
296 s->max_cert_list=ctx->max_cert_list;
298 if (ctx->cert != NULL)
300 /* Earlier library versions used to copy the pointer to
301 * the CERT, not its contents; only when setting new
302 * parameters for the per-SSL copy, ssl_cert_new would be
303 * called (and the direct reference to the per-SSL_CTX
304 * settings would be lost, but those still were indirectly
305 * accessed for various purposes, and for that reason they
306 * used to be known as s->ctx->default_cert).
307 * Now we don't look at the SSL_CTX's CERT after having
308 * duplicated it once. */
310 s->cert = ssl_cert_dup(ctx->cert);
315 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
317 s->read_ahead=ctx->read_ahead;
318 s->msg_callback=ctx->msg_callback;
319 s->msg_callback_arg=ctx->msg_callback_arg;
320 s->verify_mode=ctx->verify_mode;
322 s->verify_depth=ctx->verify_depth;
324 s->sid_ctx_length=ctx->sid_ctx_length;
325 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
326 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
327 s->verify_callback=ctx->default_verify_callback;
328 s->generate_session_id=ctx->generate_session_id;
330 s->param = X509_VERIFY_PARAM_new();
333 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
335 s->purpose = ctx->purpose;
336 s->trust = ctx->trust;
338 s->quiet_shutdown=ctx->quiet_shutdown;
339 s->max_send_fragment = ctx->max_send_fragment;
341 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
343 #ifndef OPENSSL_NO_TLSEXT
344 s->tlsext_debug_cb = 0;
345 s->tlsext_debug_arg = NULL;
346 s->tlsext_ticket_expected = 0;
347 s->tlsext_status_type = -1;
348 s->tlsext_status_expected = 0;
349 s->tlsext_ocsp_ids = NULL;
350 s->tlsext_ocsp_exts = NULL;
351 s->tlsext_ocsp_resp = NULL;
352 s->tlsext_ocsp_resplen = -1;
353 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
357 s->verify_result=X509_V_OK;
359 s->method=ctx->method;
361 if (!s->method->ssl_new(s))
365 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
369 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
371 #ifndef OPENSSL_NO_PSK
372 s->psk_client_callback=ctx->psk_client_callback;
373 s->psk_server_callback=ctx->psk_server_callback;
381 ssl_cert_free(s->cert);
383 SSL_CTX_free(s->ctx); /* decrement reference count */
386 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
390 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
391 unsigned int sid_ctx_len)
393 if(sid_ctx_len > sizeof ctx->sid_ctx)
395 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
398 ctx->sid_ctx_length=sid_ctx_len;
399 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
404 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
405 unsigned int sid_ctx_len)
407 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
409 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
412 ssl->sid_ctx_length=sid_ctx_len;
413 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
418 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
420 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
421 ctx->generate_session_id = cb;
422 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
426 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
428 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
429 ssl->generate_session_id = cb;
430 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
434 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
437 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
438 * we can "construct" a session to give us the desired check - ie. to
439 * find if there's a session in the hash table that would conflict with
440 * any new session built out of this id/id_len and the ssl_version in
441 * use by this SSL. */
444 if(id_len > sizeof r.session_id)
447 r.ssl_version = ssl->version;
448 r.session_id_length = id_len;
449 memcpy(r.session_id, id, id_len);
450 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
451 * callback is calling us to check the uniqueness of a shorter ID, it
452 * must be compared as a padded-out ID because that is what it will be
453 * converted to when the callback has finished choosing it. */
454 if((r.ssl_version == SSL2_VERSION) &&
455 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
457 memset(r.session_id + id_len, 0,
458 SSL2_SSL_SESSION_ID_LENGTH - id_len);
459 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
462 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
463 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
464 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
468 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
470 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
473 int SSL_set_purpose(SSL *s, int purpose)
475 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
478 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
480 return X509_VERIFY_PARAM_set_trust(s->param, trust);
483 int SSL_set_trust(SSL *s, int trust)
485 return X509_VERIFY_PARAM_set_trust(s->param, trust);
488 void SSL_free(SSL *s)
495 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
503 fprintf(stderr,"SSL_free, bad reference count\n");
509 X509_VERIFY_PARAM_free(s->param);
511 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
515 /* If the buffering BIO is in place, pop it off */
516 if (s->bbio == s->wbio)
518 s->wbio=BIO_pop(s->wbio);
524 BIO_free_all(s->rbio);
525 if ((s->wbio != NULL) && (s->wbio != s->rbio))
526 BIO_free_all(s->wbio);
528 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
530 /* add extra stuff */
531 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
532 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
534 /* Make the next call work :-) */
535 if (s->session != NULL)
537 ssl_clear_bad_session(s);
538 SSL_SESSION_free(s->session);
541 ssl_clear_cipher_ctx(s);
542 ssl_clear_hash_ctx(&s->read_hash);
543 ssl_clear_hash_ctx(&s->write_hash);
545 if (s->cert != NULL) ssl_cert_free(s->cert);
546 /* Free up if allocated */
548 if (s->ctx) SSL_CTX_free(s->ctx);
549 #ifndef OPENSSL_NO_TLSEXT
550 if (s->tlsext_hostname)
551 OPENSSL_free(s->tlsext_hostname);
552 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
553 #ifndef OPENSSL_NO_EC
554 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
555 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
556 #endif /* OPENSSL_NO_EC */
557 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
558 if (s->tlsext_ocsp_exts)
559 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
560 X509_EXTENSION_free);
561 if (s->tlsext_ocsp_ids)
562 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
563 if (s->tlsext_ocsp_resp)
564 OPENSSL_free(s->tlsext_ocsp_resp);
567 if (s->client_CA != NULL)
568 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
570 if (s->method != NULL) s->method->ssl_free(s);
572 #ifndef OPENSSL_NO_KRB5
573 if (s->kssl_ctx != NULL)
574 kssl_ctx_free(s->kssl_ctx);
575 #endif /* OPENSSL_NO_KRB5 */
580 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
582 /* If the output buffering BIO is still in place, remove it
586 if (s->wbio == s->bbio)
588 s->wbio=s->wbio->next_bio;
589 s->bbio->next_bio=NULL;
592 if ((s->rbio != NULL) && (s->rbio != rbio))
593 BIO_free_all(s->rbio);
594 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
595 BIO_free_all(s->wbio);
600 BIO *SSL_get_rbio(const SSL *s)
603 BIO *SSL_get_wbio(const SSL *s)
606 int SSL_get_fd(const SSL *s)
608 return(SSL_get_rfd(s));
611 int SSL_get_rfd(const SSL *s)
617 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
623 int SSL_get_wfd(const SSL *s)
629 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
635 #ifndef OPENSSL_NO_SOCK
636 int SSL_set_fd(SSL *s,int fd)
641 bio=BIO_new(BIO_s_socket());
645 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
648 BIO_set_fd(bio,fd,BIO_NOCLOSE);
649 SSL_set_bio(s,bio,bio);
655 int SSL_set_wfd(SSL *s,int fd)
660 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
661 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
663 bio=BIO_new(BIO_s_socket());
666 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
667 BIO_set_fd(bio,fd,BIO_NOCLOSE);
668 SSL_set_bio(s,SSL_get_rbio(s),bio);
671 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
677 int SSL_set_rfd(SSL *s,int fd)
682 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
683 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
685 bio=BIO_new(BIO_s_socket());
689 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
692 BIO_set_fd(bio,fd,BIO_NOCLOSE);
693 SSL_set_bio(s,bio,SSL_get_wbio(s));
696 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
704 /* return length of latest Finished message we sent, copy to 'buf' */
705 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
711 ret = s->s3->tmp.finish_md_len;
714 memcpy(buf, s->s3->tmp.finish_md, count);
719 /* return length of latest Finished message we expected, copy to 'buf' */
720 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
726 ret = s->s3->tmp.peer_finish_md_len;
729 memcpy(buf, s->s3->tmp.peer_finish_md, count);
735 int SSL_get_verify_mode(const SSL *s)
737 return(s->verify_mode);
740 int SSL_get_verify_depth(const SSL *s)
742 return X509_VERIFY_PARAM_get_depth(s->param);
745 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
747 return(s->verify_callback);
750 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
752 return(ctx->verify_mode);
755 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
757 return X509_VERIFY_PARAM_get_depth(ctx->param);
760 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
762 return(ctx->default_verify_callback);
765 void SSL_set_verify(SSL *s,int mode,
766 int (*callback)(int ok,X509_STORE_CTX *ctx))
769 if (callback != NULL)
770 s->verify_callback=callback;
773 void SSL_set_verify_depth(SSL *s,int depth)
775 X509_VERIFY_PARAM_set_depth(s->param, depth);
778 void SSL_set_read_ahead(SSL *s,int yes)
783 int SSL_get_read_ahead(const SSL *s)
785 return(s->read_ahead);
788 int SSL_pending(const SSL *s)
790 /* SSL_pending cannot work properly if read-ahead is enabled
791 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
792 * and it is impossible to fix since SSL_pending cannot report
793 * errors that may be observed while scanning the new data.
794 * (Note that SSL_pending() is often used as a boolean value,
795 * so we'd better not return -1.)
797 return(s->method->ssl_pending(s));
800 X509 *SSL_get_peer_certificate(const SSL *s)
804 if ((s == NULL) || (s->session == NULL))
809 if (r == NULL) return(r);
811 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
816 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
820 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
823 r=s->session->sess_cert->cert_chain;
825 /* If we are a client, cert_chain includes the peer's own
826 * certificate; if we are a server, it does not. */
831 /* Now in theory, since the calling process own 't' it should be safe to
832 * modify. We need to be able to read f without being hassled */
833 void SSL_copy_session_id(SSL *t,const SSL *f)
837 /* Do we need to to SSL locking? */
838 SSL_set_session(t,SSL_get_session(f));
840 /* what if we are setup as SSLv2 but want to talk SSLv3 or
842 if (t->method != f->method)
844 t->method->ssl_free(t); /* cleanup current */
845 t->method=f->method; /* change method */
846 t->method->ssl_new(t); /* setup new */
852 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
857 if (tmp != NULL) ssl_cert_free(tmp);
858 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
861 /* Fix this so it checks all the valid key/cert options */
862 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
864 if ( (ctx == NULL) ||
865 (ctx->cert == NULL) ||
866 (ctx->cert->key->x509 == NULL))
868 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
871 if (ctx->cert->key->privatekey == NULL)
873 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
876 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
879 /* Fix this function so that it takes an optional type parameter */
880 int SSL_check_private_key(const SSL *ssl)
884 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
887 if (ssl->cert == NULL)
889 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
892 if (ssl->cert->key->x509 == NULL)
894 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
897 if (ssl->cert->key->privatekey == NULL)
899 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
902 return(X509_check_private_key(ssl->cert->key->x509,
903 ssl->cert->key->privatekey));
906 int SSL_accept(SSL *s)
908 if (s->handshake_func == 0)
909 /* Not properly initialized yet */
910 SSL_set_accept_state(s);
912 return(s->method->ssl_accept(s));
915 int SSL_connect(SSL *s)
917 if (s->handshake_func == 0)
918 /* Not properly initialized yet */
919 SSL_set_connect_state(s);
921 return(s->method->ssl_connect(s));
924 long SSL_get_default_timeout(const SSL *s)
926 return(s->method->get_timeout());
929 int SSL_read(SSL *s,void *buf,int num)
931 if (s->handshake_func == 0)
933 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
937 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
939 s->rwstate=SSL_NOTHING;
942 return(s->method->ssl_read(s,buf,num));
945 int SSL_peek(SSL *s,void *buf,int num)
947 if (s->handshake_func == 0)
949 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
953 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
957 return(s->method->ssl_peek(s,buf,num));
960 int SSL_write(SSL *s,const void *buf,int num)
962 if (s->handshake_func == 0)
964 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
968 if (s->shutdown & SSL_SENT_SHUTDOWN)
970 s->rwstate=SSL_NOTHING;
971 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
974 return(s->method->ssl_write(s,buf,num));
977 int SSL_shutdown(SSL *s)
979 /* Note that this function behaves differently from what one might
980 * expect. Return values are 0 for no success (yet),
981 * 1 for success; but calling it once is usually not enough,
982 * even if blocking I/O is used (see ssl3_shutdown).
985 if (s->handshake_func == 0)
987 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
991 if ((s != NULL) && !SSL_in_init(s))
992 return(s->method->ssl_shutdown(s));
997 int SSL_renegotiate(SSL *s)
999 if (s->new_session == 0)
1003 return(s->method->ssl_renegotiate(s));
1006 int SSL_renegotiate_pending(SSL *s)
1008 /* becomes true when negotiation is requested;
1009 * false again once a handshake has finished */
1010 return (s->new_session != 0);
1013 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1019 case SSL_CTRL_GET_READ_AHEAD:
1020 return(s->read_ahead);
1021 case SSL_CTRL_SET_READ_AHEAD:
1026 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1027 s->msg_callback_arg = parg;
1030 case SSL_CTRL_OPTIONS:
1031 return(s->options|=larg);
1033 return(s->mode|=larg);
1034 case SSL_CTRL_GET_MAX_CERT_LIST:
1035 return(s->max_cert_list);
1036 case SSL_CTRL_SET_MAX_CERT_LIST:
1038 s->max_cert_list=larg;
1040 case SSL_CTRL_SET_MTU:
1041 if (SSL_version(s) == DTLS1_VERSION ||
1042 SSL_version(s) == DTLS1_BAD_VER)
1048 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1049 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1051 s->max_send_fragment = larg;
1054 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1058 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1062 case SSL_CTRL_SET_MSG_CALLBACK:
1063 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1067 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1071 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1073 return ctx->sessions;
1076 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1082 case SSL_CTRL_GET_READ_AHEAD:
1083 return(ctx->read_ahead);
1084 case SSL_CTRL_SET_READ_AHEAD:
1086 ctx->read_ahead=larg;
1089 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1090 ctx->msg_callback_arg = parg;
1093 case SSL_CTRL_GET_MAX_CERT_LIST:
1094 return(ctx->max_cert_list);
1095 case SSL_CTRL_SET_MAX_CERT_LIST:
1096 l=ctx->max_cert_list;
1097 ctx->max_cert_list=larg;
1100 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1101 l=ctx->session_cache_size;
1102 ctx->session_cache_size=larg;
1104 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1105 return(ctx->session_cache_size);
1106 case SSL_CTRL_SET_SESS_CACHE_MODE:
1107 l=ctx->session_cache_mode;
1108 ctx->session_cache_mode=larg;
1110 case SSL_CTRL_GET_SESS_CACHE_MODE:
1111 return(ctx->session_cache_mode);
1113 case SSL_CTRL_SESS_NUMBER:
1114 return(lh_SSL_SESSION_num_items(ctx->sessions));
1115 case SSL_CTRL_SESS_CONNECT:
1116 return(ctx->stats.sess_connect);
1117 case SSL_CTRL_SESS_CONNECT_GOOD:
1118 return(ctx->stats.sess_connect_good);
1119 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1120 return(ctx->stats.sess_connect_renegotiate);
1121 case SSL_CTRL_SESS_ACCEPT:
1122 return(ctx->stats.sess_accept);
1123 case SSL_CTRL_SESS_ACCEPT_GOOD:
1124 return(ctx->stats.sess_accept_good);
1125 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1126 return(ctx->stats.sess_accept_renegotiate);
1127 case SSL_CTRL_SESS_HIT:
1128 return(ctx->stats.sess_hit);
1129 case SSL_CTRL_SESS_CB_HIT:
1130 return(ctx->stats.sess_cb_hit);
1131 case SSL_CTRL_SESS_MISSES:
1132 return(ctx->stats.sess_miss);
1133 case SSL_CTRL_SESS_TIMEOUTS:
1134 return(ctx->stats.sess_timeout);
1135 case SSL_CTRL_SESS_CACHE_FULL:
1136 return(ctx->stats.sess_cache_full);
1137 case SSL_CTRL_OPTIONS:
1138 return(ctx->options|=larg);
1140 return(ctx->mode|=larg);
1141 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1142 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1144 ctx->max_send_fragment = larg;
1147 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1151 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1155 case SSL_CTRL_SET_MSG_CALLBACK:
1156 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1160 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1164 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1172 return((l > 0)?1:-1);
1175 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1176 const SSL_CIPHER * const *bp)
1180 l=(*ap)->id-(*bp)->id;
1184 return((l > 0)?1:-1);
1187 /** return a STACK of the ciphers available for the SSL and in order of
1189 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1193 if (s->cipher_list != NULL)
1195 return(s->cipher_list);
1197 else if ((s->ctx != NULL) &&
1198 (s->ctx->cipher_list != NULL))
1200 return(s->ctx->cipher_list);
1206 /** return a STACK of the ciphers available for the SSL and in order of
1208 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1212 if (s->cipher_list_by_id != NULL)
1214 return(s->cipher_list_by_id);
1216 else if ((s->ctx != NULL) &&
1217 (s->ctx->cipher_list_by_id != NULL))
1219 return(s->ctx->cipher_list_by_id);
1225 /** The old interface to get the same thing as SSL_get_ciphers() */
1226 const char *SSL_get_cipher_list(const SSL *s,int n)
1229 STACK_OF(SSL_CIPHER) *sk;
1231 if (s == NULL) return(NULL);
1232 sk=SSL_get_ciphers(s);
1233 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1235 c=sk_SSL_CIPHER_value(sk,n);
1236 if (c == NULL) return(NULL);
1240 /** specify the ciphers to be used by default by the SSL_CTX */
1241 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1243 STACK_OF(SSL_CIPHER) *sk;
1245 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1246 &ctx->cipher_list_by_id,str);
1247 /* ssl_create_cipher_list may return an empty stack if it
1248 * was unable to find a cipher matching the given rule string
1249 * (for example if the rule string specifies a cipher which
1250 * has been disabled). This is not an error as far as
1251 * ssl_create_cipher_list is concerned, and hence
1252 * ctx->cipher_list and ctx->cipher_list_by_id has been
1256 else if (sk_SSL_CIPHER_num(sk) == 0)
1258 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1264 /** specify the ciphers to be used by the SSL */
1265 int SSL_set_cipher_list(SSL *s,const char *str)
1267 STACK_OF(SSL_CIPHER) *sk;
1269 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1270 &s->cipher_list_by_id,str);
1271 /* see comment in SSL_CTX_set_cipher_list */
1274 else if (sk_SSL_CIPHER_num(sk) == 0)
1276 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1282 /* works well for SSLv2, not so good for SSLv3 */
1283 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1286 STACK_OF(SSL_CIPHER) *sk;
1290 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1295 sk=s->session->ciphers;
1296 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1300 c=sk_SSL_CIPHER_value(sk,i);
1318 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1319 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1324 #ifndef OPENSSL_NO_KRB5
1325 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1326 #endif /* OPENSSL_NO_KRB5 */
1328 if (sk == NULL) return(0);
1331 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1333 c=sk_SSL_CIPHER_value(sk,i);
1334 #ifndef OPENSSL_NO_KRB5
1335 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1338 #endif /* OPENSSL_NO_KRB5 */
1339 #ifndef OPENSSL_NO_PSK
1340 /* with PSK there must be client callback set */
1341 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1342 s->psk_client_callback == NULL)
1344 #endif /* OPENSSL_NO_PSK */
1345 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1351 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1352 STACK_OF(SSL_CIPHER) **skp)
1354 const SSL_CIPHER *c;
1355 STACK_OF(SSL_CIPHER) *sk;
1358 n=ssl_put_cipher_by_char(s,NULL,NULL);
1361 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1364 if ((skp == NULL) || (*skp == NULL))
1365 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1369 sk_SSL_CIPHER_zero(sk);
1372 for (i=0; i<num; i+=n)
1374 c=ssl_get_cipher_by_char(s,p);
1378 if (!sk_SSL_CIPHER_push(sk,c))
1380 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1390 if ((skp == NULL) || (*skp == NULL))
1391 sk_SSL_CIPHER_free(sk);
1396 #ifndef OPENSSL_NO_TLSEXT
1397 /** return a servername extension value if provided in Client Hello, or NULL.
1398 * So far, only host_name types are defined (RFC 3546).
1401 const char *SSL_get_servername(const SSL *s, const int type)
1403 if (type != TLSEXT_NAMETYPE_host_name)
1406 return s->session && !s->tlsext_hostname ?
1407 s->session->tlsext_hostname :
1411 int SSL_get_servername_type(const SSL *s)
1413 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1414 return TLSEXT_NAMETYPE_host_name;
1419 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1424 ((unsigned int) a->session_id[0] )|
1425 ((unsigned int) a->session_id[1]<< 8L)|
1426 ((unsigned long)a->session_id[2]<<16L)|
1427 ((unsigned long)a->session_id[3]<<24L);
1431 /* NB: If this function (or indeed the hash function which uses a sort of
1432 * coarser function than this one) is changed, ensure
1433 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1434 * able to construct an SSL_SESSION that will collide with any existing session
1435 * with a matching session ID. */
1436 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1438 if (a->ssl_version != b->ssl_version)
1440 if (a->session_id_length != b->session_id_length)
1442 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1445 /* These wrapper functions should remain rather than redeclaring
1446 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1447 * variable. The reason is that the functions aren't static, they're exposed via
1449 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1450 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1452 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1458 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1462 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1464 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1467 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1471 memset(ret,0,sizeof(SSL_CTX));
1475 ret->cert_store=NULL;
1476 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1477 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1478 ret->session_cache_head=NULL;
1479 ret->session_cache_tail=NULL;
1481 /* We take the system default */
1482 ret->session_timeout=meth->get_timeout();
1484 ret->new_session_cb=0;
1485 ret->remove_session_cb=0;
1486 ret->get_session_cb=0;
1487 ret->generate_session_id=0;
1489 memset((char *)&ret->stats,0,sizeof(ret->stats));
1492 ret->quiet_shutdown=0;
1494 /* ret->cipher=NULL;*/
1495 /* ret->s2->challenge=NULL;
1496 ret->master_key=NULL;
1498 ret->s2->conn_id=NULL; */
1500 ret->info_callback=NULL;
1502 ret->app_verify_callback=0;
1503 ret->app_verify_arg=NULL;
1505 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1507 ret->msg_callback=0;
1508 ret->msg_callback_arg=NULL;
1509 ret->verify_mode=SSL_VERIFY_NONE;
1511 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1513 ret->sid_ctx_length=0;
1514 ret->default_verify_callback=NULL;
1515 if ((ret->cert=ssl_cert_new()) == NULL)
1518 ret->default_passwd_callback=0;
1519 ret->default_passwd_callback_userdata=NULL;
1520 ret->client_cert_cb=0;
1521 ret->app_gen_cookie_cb=0;
1522 ret->app_verify_cookie_cb=0;
1524 ret->sessions=lh_SSL_SESSION_new();
1525 if (ret->sessions == NULL) goto err;
1526 ret->cert_store=X509_STORE_new();
1527 if (ret->cert_store == NULL) goto err;
1529 ssl_create_cipher_list(ret->method,
1530 &ret->cipher_list,&ret->cipher_list_by_id,
1531 SSL_DEFAULT_CIPHER_LIST);
1532 if (ret->cipher_list == NULL
1533 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1535 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1539 ret->param = X509_VERIFY_PARAM_new();
1543 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1545 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1548 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1550 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1553 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1555 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1559 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1562 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1564 ret->extra_certs=NULL;
1565 ret->comp_methods=SSL_COMP_get_compression_methods();
1567 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1569 #ifndef OPENSSL_NO_TLSEXT
1570 ret->tlsext_servername_callback = 0;
1571 ret->tlsext_servername_arg = NULL;
1572 /* Setup RFC4507 ticket keys */
1573 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1574 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1575 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1576 ret->options |= SSL_OP_NO_TICKET;
1578 ret->tlsext_status_cb = 0;
1579 ret->tlsext_status_arg = NULL;
1582 #ifndef OPENSSL_NO_PSK
1583 ret->psk_identity_hint=NULL;
1584 ret->psk_client_callback=NULL;
1585 ret->psk_server_callback=NULL;
1587 #ifndef OPENSSL_NO_BUF_FREELISTS
1588 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1589 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1590 if (!ret->rbuf_freelist)
1592 ret->rbuf_freelist->chunklen = 0;
1593 ret->rbuf_freelist->len = 0;
1594 ret->rbuf_freelist->head = NULL;
1595 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1596 if (!ret->wbuf_freelist)
1598 OPENSSL_free(ret->rbuf_freelist);
1601 ret->wbuf_freelist->chunklen = 0;
1602 ret->wbuf_freelist->len = 0;
1603 ret->wbuf_freelist->head = NULL;
1605 #ifndef OPENSSL_NO_ENGINE
1606 ret->client_cert_engine = NULL;
1607 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1608 #define eng_strx(x) #x
1609 #define eng_str(x) eng_strx(x)
1610 /* Use specific client engine automatically... ignore errors */
1613 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1617 ENGINE_load_builtin_engines();
1618 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1620 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1628 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1630 if (ret != NULL) SSL_CTX_free(ret);
1635 static void SSL_COMP_free(SSL_COMP *comp)
1636 { OPENSSL_free(comp); }
1639 #ifndef OPENSSL_NO_BUF_FREELISTS
1641 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1643 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1644 for (ent = list->head; ent; ent = next)
1653 void SSL_CTX_free(SSL_CTX *a)
1657 if (a == NULL) return;
1659 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1661 REF_PRINT("SSL_CTX",a);
1667 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1673 X509_VERIFY_PARAM_free(a->param);
1676 * Free internal session cache. However: the remove_cb() may reference
1677 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1678 * after the sessions were flushed.
1679 * As the ex_data handling routines might also touch the session cache,
1680 * the most secure solution seems to be: empty (flush) the cache, then
1681 * free ex_data, then finally free the cache.
1682 * (See ticket [openssl.org #212].)
1684 if (a->sessions != NULL)
1685 SSL_CTX_flush_sessions(a,0);
1687 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1689 if (a->sessions != NULL)
1690 lh_SSL_SESSION_free(a->sessions);
1692 if (a->cert_store != NULL)
1693 X509_STORE_free(a->cert_store);
1694 if (a->cipher_list != NULL)
1695 sk_SSL_CIPHER_free(a->cipher_list);
1696 if (a->cipher_list_by_id != NULL)
1697 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1698 if (a->cert != NULL)
1699 ssl_cert_free(a->cert);
1700 if (a->client_CA != NULL)
1701 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1702 if (a->extra_certs != NULL)
1703 sk_X509_pop_free(a->extra_certs,X509_free);
1704 #if 0 /* This should never be done, since it removes a global database */
1705 if (a->comp_methods != NULL)
1706 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1708 a->comp_methods = NULL;
1711 #ifndef OPENSSL_NO_PSK
1712 if (a->psk_identity_hint)
1713 OPENSSL_free(a->psk_identity_hint);
1715 #ifndef OPENSSL_NO_ENGINE
1716 if (a->client_cert_engine)
1717 ENGINE_finish(a->client_cert_engine);
1720 #ifndef OPENSSL_NO_BUF_FREELISTS
1721 if (a->wbuf_freelist)
1722 ssl_buf_freelist_free(a->wbuf_freelist);
1723 if (a->rbuf_freelist)
1724 ssl_buf_freelist_free(a->rbuf_freelist);
1730 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1732 ctx->default_passwd_callback=cb;
1735 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1737 ctx->default_passwd_callback_userdata=u;
1740 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1742 ctx->app_verify_callback=cb;
1743 ctx->app_verify_arg=arg;
1746 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1748 ctx->verify_mode=mode;
1749 ctx->default_verify_callback=cb;
1752 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1754 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1757 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
1760 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1761 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1762 int rsa_tmp_export,dh_tmp_export,kl;
1763 unsigned long mask_k,mask_a,emask_k,emask_a;
1764 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1765 #ifndef OPENSSL_NO_ECDH
1769 EVP_PKEY *ecc_pkey = NULL;
1770 int signature_nid = 0;
1772 if (c == NULL) return;
1774 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1776 #ifndef OPENSSL_NO_RSA
1777 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1778 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1779 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1781 rsa_tmp=rsa_tmp_export=0;
1783 #ifndef OPENSSL_NO_DH
1784 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1785 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1786 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1788 dh_tmp=dh_tmp_export=0;
1791 #ifndef OPENSSL_NO_ECDH
1792 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1794 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1795 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1796 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1797 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1798 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1799 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1800 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1801 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1802 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1803 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1804 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1805 /* FIX THIS EAY EAY EAY */
1806 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1807 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1808 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1809 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1818 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1819 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
1820 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1823 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1824 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1825 mask_k |= SSL_kGOST;
1826 mask_a |= SSL_aGOST01;
1828 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
1829 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1830 mask_k |= SSL_kGOST;
1831 mask_a |= SSL_aGOST94;
1834 if (rsa_enc || (rsa_tmp && rsa_sign))
1836 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1840 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1841 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1842 (rsa_enc || rsa_sign || dsa_sign))
1844 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1845 (rsa_enc || rsa_sign || dsa_sign))
1855 if (dh_rsa) mask_k|=SSL_kDHr;
1856 if (dh_rsa_export) emask_k|=SSL_kDHr;
1858 if (dh_dsa) mask_k|=SSL_kDHd;
1859 if (dh_dsa_export) emask_k|=SSL_kDHd;
1861 if (rsa_enc || rsa_sign)
1876 #ifndef OPENSSL_NO_KRB5
1883 /* An ECC certificate may be usable for ECDH and/or
1884 * ECDSA cipher suites depending on the key usage extension.
1888 /* This call populates extension flags (ex_flags) */
1889 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1890 X509_check_purpose(x, -1, 0);
1891 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1892 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1893 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1894 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1895 ecc_pkey = X509_get_pubkey(x);
1896 ecc_pkey_size = (ecc_pkey != NULL) ?
1897 EVP_PKEY_bits(ecc_pkey) : 0;
1898 EVP_PKEY_free(ecc_pkey);
1899 if ((x->sig_alg) && (x->sig_alg->algorithm))
1900 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1901 #ifndef OPENSSL_NO_ECDH
1904 const char *sig = OBJ_nid2ln(signature_nid);
1911 if (strstr(sig, "WithRSA"))
1915 if (ecc_pkey_size <= 163)
1917 emask_k|=SSL_kECDHr;
1922 if (signature_nid == NID_ecdsa_with_SHA1)
1926 if (ecc_pkey_size <= 163)
1928 emask_k|=SSL_kECDHe;
1934 #ifndef OPENSSL_NO_ECDSA
1938 emask_a|=SSL_aECDSA;
1943 #ifndef OPENSSL_NO_ECDH
1947 emask_k|=SSL_kEECDH;
1951 #ifndef OPENSSL_NO_PSK
1954 emask_k |= SSL_kPSK;
1955 emask_a |= SSL_aPSK;
1960 c->export_mask_k=emask_k;
1961 c->export_mask_a=emask_a;
1965 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1966 #define ku_reject(x, usage) \
1967 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1969 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
1971 unsigned long alg_k, alg_a;
1972 EVP_PKEY *pkey = NULL;
1974 int signature_nid = 0;
1976 alg_k = cs->algorithm_mkey;
1977 alg_a = cs->algorithm_auth;
1979 if (SSL_C_IS_EXPORT(cs))
1981 /* ECDH key length in export ciphers must be <= 163 bits */
1982 pkey = X509_get_pubkey(x);
1983 if (pkey == NULL) return 0;
1984 keysize = EVP_PKEY_bits(pkey);
1985 EVP_PKEY_free(pkey);
1986 if (keysize > 163) return 0;
1989 /* This call populates the ex_flags field correctly */
1990 X509_check_purpose(x, -1, 0);
1991 if ((x->sig_alg) && (x->sig_alg->algorithm))
1992 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1993 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
1995 /* key usage, if present, must allow key agreement */
1996 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1998 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2001 if (alg_k & SSL_kECDHe)
2003 /* signature alg must be ECDSA */
2004 if (signature_nid != NID_ecdsa_with_SHA1)
2006 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2010 if (alg_k & SSL_kECDHr)
2012 /* signature alg must be RSA */
2014 const char *sig = OBJ_nid2ln(signature_nid);
2020 if (strstr(sig, "WithRSA") == NULL)
2022 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2027 if (alg_a & SSL_aECDSA)
2029 /* key usage, if present, must allow signing */
2030 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2032 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2037 return 1; /* all checks are ok */
2040 /* THIS NEEDS CLEANING UP */
2041 X509 *ssl_get_server_send_cert(SSL *s)
2043 unsigned long alg_k,alg_a,mask_k,mask_a;
2048 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2049 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
2052 mask_k = c->export_mask_k;
2053 mask_a = c->export_mask_a;
2061 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2062 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2064 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2066 /* we don't need to look at SSL_kEECDH
2067 * since no certificate is needed for
2068 * anon ECDH and for authenticated
2069 * EECDH, the check for the auth
2070 * algorithm will set i correctly
2071 * NOTE: For ECDH-RSA, we need an ECC
2072 * not an RSA cert but for EECDH-RSA
2073 * we need an RSA cert. Placing the
2074 * checks for SSL_kECDH before RSA
2075 * checks ensures the correct cert is chosen.
2079 else if (alg_a & SSL_aECDSA)
2083 else if (alg_k & SSL_kDHr)
2085 else if (alg_k & SSL_kDHd)
2087 else if (alg_a & SSL_aDSS)
2088 i=SSL_PKEY_DSA_SIGN;
2089 else if (alg_a & SSL_aRSA)
2091 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2092 i=SSL_PKEY_RSA_SIGN;
2096 else if (alg_a & SSL_aKRB5)
2098 /* VRS something else here? */
2101 else if (alg_a & SSL_aGOST94)
2103 else if (alg_a & SSL_aGOST01)
2105 else /* if (alg_a & SSL_aNULL) */
2107 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2110 if (c->pkeys[i].x509 == NULL) return(NULL);
2112 return(c->pkeys[i].x509);
2115 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher)
2117 unsigned long alg_a;
2120 alg_a = cipher->algorithm_auth;
2123 if ((alg_a & SSL_aDSS) &&
2124 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2125 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2126 else if (alg_a & SSL_aRSA)
2128 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2129 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2130 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2131 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2135 else if ((alg_a & SSL_aECDSA) &&
2136 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2137 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2138 else /* if (alg_a & SSL_aNULL) */
2140 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2145 void ssl_update_cache(SSL *s,int mode)
2149 /* If the session_id_length is 0, we are not supposed to cache it,
2150 * and it would be rather hard to do anyway :-) */
2151 if (s->session->session_id_length == 0) return;
2153 i=s->session_ctx->session_cache_mode;
2154 if ((i & mode) && (!s->hit)
2155 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2156 || SSL_CTX_add_session(s->session_ctx,s->session))
2157 && (s->session_ctx->new_session_cb != NULL))
2159 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2160 if (!s->session_ctx->new_session_cb(s,s->session))
2161 SSL_SESSION_free(s->session);
2164 /* auto flush every 255 connections */
2165 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2166 ((i & mode) == mode))
2168 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2169 ?s->session_ctx->stats.sess_connect_good
2170 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2172 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2177 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2182 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2187 if (s->method != meth)
2189 if (s->handshake_func != NULL)
2190 conn=(s->handshake_func == s->method->ssl_connect);
2192 if (s->method->version == meth->version)
2196 s->method->ssl_free(s);
2198 ret=s->method->ssl_new(s);
2202 s->handshake_func=meth->ssl_connect;
2204 s->handshake_func=meth->ssl_accept;
2209 int SSL_get_error(const SSL *s,int i)
2215 if (i > 0) return(SSL_ERROR_NONE);
2217 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2218 * etc, where we do encode the error */
2219 if ((l=ERR_peek_error()) != 0)
2221 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2222 return(SSL_ERROR_SYSCALL);
2224 return(SSL_ERROR_SSL);
2227 if ((i < 0) && SSL_want_read(s))
2229 bio=SSL_get_rbio(s);
2230 if (BIO_should_read(bio))
2231 return(SSL_ERROR_WANT_READ);
2232 else if (BIO_should_write(bio))
2233 /* This one doesn't make too much sense ... We never try
2234 * to write to the rbio, and an application program where
2235 * rbio and wbio are separate couldn't even know what it
2237 * However if we ever set s->rwstate incorrectly
2238 * (so that we have SSL_want_read(s) instead of
2239 * SSL_want_write(s)) and rbio and wbio *are* the same,
2240 * this test works around that bug; so it might be safer
2242 return(SSL_ERROR_WANT_WRITE);
2243 else if (BIO_should_io_special(bio))
2245 reason=BIO_get_retry_reason(bio);
2246 if (reason == BIO_RR_CONNECT)
2247 return(SSL_ERROR_WANT_CONNECT);
2248 else if (reason == BIO_RR_ACCEPT)
2249 return(SSL_ERROR_WANT_ACCEPT);
2251 return(SSL_ERROR_SYSCALL); /* unknown */
2255 if ((i < 0) && SSL_want_write(s))
2257 bio=SSL_get_wbio(s);
2258 if (BIO_should_write(bio))
2259 return(SSL_ERROR_WANT_WRITE);
2260 else if (BIO_should_read(bio))
2261 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2262 return(SSL_ERROR_WANT_READ);
2263 else if (BIO_should_io_special(bio))
2265 reason=BIO_get_retry_reason(bio);
2266 if (reason == BIO_RR_CONNECT)
2267 return(SSL_ERROR_WANT_CONNECT);
2268 else if (reason == BIO_RR_ACCEPT)
2269 return(SSL_ERROR_WANT_ACCEPT);
2271 return(SSL_ERROR_SYSCALL);
2274 if ((i < 0) && SSL_want_x509_lookup(s))
2276 return(SSL_ERROR_WANT_X509_LOOKUP);
2281 if (s->version == SSL2_VERSION)
2283 /* assume it is the socket being closed */
2284 return(SSL_ERROR_ZERO_RETURN);
2288 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2289 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2290 return(SSL_ERROR_ZERO_RETURN);
2293 return(SSL_ERROR_SYSCALL);
2296 int SSL_do_handshake(SSL *s)
2300 if (s->handshake_func == NULL)
2302 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2306 s->method->ssl_renegotiate_check(s);
2308 if (SSL_in_init(s) || SSL_in_before(s))
2310 ret=s->handshake_func(s);
2315 /* For the next 2 functions, SSL_clear() sets shutdown and so
2316 * one of these calls will reset it */
2317 void SSL_set_accept_state(SSL *s)
2321 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2322 s->handshake_func=s->method->ssl_accept;
2323 /* clear the current cipher */
2324 ssl_clear_cipher_ctx(s);
2325 ssl_clear_hash_ctx(&s->read_hash);
2326 ssl_clear_hash_ctx(&s->write_hash);
2329 void SSL_set_connect_state(SSL *s)
2333 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2334 s->handshake_func=s->method->ssl_connect;
2335 /* clear the current cipher */
2336 ssl_clear_cipher_ctx(s);
2337 ssl_clear_hash_ctx(&s->read_hash);
2338 ssl_clear_hash_ctx(&s->write_hash);
2341 int ssl_undefined_function(SSL *s)
2343 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2347 int ssl_undefined_void_function(void)
2349 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2353 int ssl_undefined_const_function(const SSL *s)
2355 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2359 SSL_METHOD *ssl_bad_method(int ver)
2361 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2365 const char *SSL_get_version(const SSL *s)
2367 if (s->version == TLS1_VERSION)
2369 else if (s->version == SSL3_VERSION)
2371 else if (s->version == SSL2_VERSION)
2377 SSL *SSL_dup(SSL *s)
2379 STACK_OF(X509_NAME) *sk;
2384 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2387 ret->version = s->version;
2388 ret->type = s->type;
2389 ret->method = s->method;
2391 if (s->session != NULL)
2393 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2394 SSL_copy_session_id(ret,s);
2398 /* No session has been established yet, so we have to expect
2399 * that s->cert or ret->cert will be changed later --
2400 * they should not both point to the same object,
2401 * and thus we can't use SSL_copy_session_id. */
2403 ret->method->ssl_free(ret);
2404 ret->method = s->method;
2405 ret->method->ssl_new(ret);
2407 if (s->cert != NULL)
2409 if (ret->cert != NULL)
2411 ssl_cert_free(ret->cert);
2413 ret->cert = ssl_cert_dup(s->cert);
2414 if (ret->cert == NULL)
2418 SSL_set_session_id_context(ret,
2419 s->sid_ctx, s->sid_ctx_length);
2422 ret->options=s->options;
2424 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2425 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2426 ret->msg_callback = s->msg_callback;
2427 ret->msg_callback_arg = s->msg_callback_arg;
2428 SSL_set_verify(ret,SSL_get_verify_mode(s),
2429 SSL_get_verify_callback(s));
2430 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2431 ret->generate_session_id = s->generate_session_id;
2433 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2435 ret->debug=s->debug;
2437 /* copy app data, a little dangerous perhaps */
2438 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2441 /* setup rbio, and wbio */
2442 if (s->rbio != NULL)
2444 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2447 if (s->wbio != NULL)
2449 if (s->wbio != s->rbio)
2451 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2455 ret->wbio=ret->rbio;
2457 ret->rwstate = s->rwstate;
2458 ret->in_handshake = s->in_handshake;
2459 ret->handshake_func = s->handshake_func;
2460 ret->server = s->server;
2461 ret->new_session = s->new_session;
2462 ret->quiet_shutdown = s->quiet_shutdown;
2463 ret->shutdown=s->shutdown;
2464 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2465 ret->rstate=s->rstate;
2466 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2469 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2471 /* dup the cipher_list and cipher_list_by_id stacks */
2472 if (s->cipher_list != NULL)
2474 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2477 if (s->cipher_list_by_id != NULL)
2478 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2482 /* Dup the client_CA list */
2483 if (s->client_CA != NULL)
2485 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2487 for (i=0; i<sk_X509_NAME_num(sk); i++)
2489 xn=sk_X509_NAME_value(sk,i);
2490 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2501 if (ret != NULL) SSL_free(ret);
2507 void ssl_clear_cipher_ctx(SSL *s)
2509 if (s->enc_read_ctx != NULL)
2511 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2512 OPENSSL_free(s->enc_read_ctx);
2513 s->enc_read_ctx=NULL;
2515 if (s->enc_write_ctx != NULL)
2517 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2518 OPENSSL_free(s->enc_write_ctx);
2519 s->enc_write_ctx=NULL;
2521 #ifndef OPENSSL_NO_COMP
2522 if (s->expand != NULL)
2524 COMP_CTX_free(s->expand);
2527 if (s->compress != NULL)
2529 COMP_CTX_free(s->compress);
2535 /* Fix this function so that it takes an optional type parameter */
2536 X509 *SSL_get_certificate(const SSL *s)
2538 if (s->cert != NULL)
2539 return(s->cert->key->x509);
2544 /* Fix this function so that it takes an optional type parameter */
2545 EVP_PKEY *SSL_get_privatekey(SSL *s)
2547 if (s->cert != NULL)
2548 return(s->cert->key->privatekey);
2553 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2555 if ((s->session != NULL) && (s->session->cipher != NULL))
2556 return(s->session->cipher);
2559 #ifdef OPENSSL_NO_COMP
2560 const void *SSL_get_current_compression(SSL *s)
2564 const void *SSL_get_current_expansion(SSL *s)
2570 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2572 if (s->compress != NULL)
2573 return(s->compress->meth);
2577 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2579 if (s->expand != NULL)
2580 return(s->expand->meth);
2585 int ssl_init_wbio_buffer(SSL *s,int push)
2589 if (s->bbio == NULL)
2591 bbio=BIO_new(BIO_f_buffer());
2592 if (bbio == NULL) return(0);
2598 if (s->bbio == s->wbio)
2599 s->wbio=BIO_pop(s->wbio);
2601 (void)BIO_reset(bbio);
2602 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2603 if (!BIO_set_read_buffer_size(bbio,1))
2605 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2610 if (s->wbio != bbio)
2611 s->wbio=BIO_push(bbio,s->wbio);
2615 if (s->wbio == bbio)
2616 s->wbio=BIO_pop(bbio);
2621 void ssl_free_wbio_buffer(SSL *s)
2623 if (s->bbio == NULL) return;
2625 if (s->bbio == s->wbio)
2627 /* remove buffering */
2628 s->wbio=BIO_pop(s->wbio);
2629 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2630 assert(s->wbio != NULL);
2637 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2639 ctx->quiet_shutdown=mode;
2642 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2644 return(ctx->quiet_shutdown);
2647 void SSL_set_quiet_shutdown(SSL *s,int mode)
2649 s->quiet_shutdown=mode;
2652 int SSL_get_quiet_shutdown(const SSL *s)
2654 return(s->quiet_shutdown);
2657 void SSL_set_shutdown(SSL *s,int mode)
2662 int SSL_get_shutdown(const SSL *s)
2664 return(s->shutdown);
2667 int SSL_version(const SSL *s)
2672 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2677 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2679 if (ssl->ctx == ctx)
2681 #ifndef OPENSSL_NO_TLSEXT
2683 ctx = ssl->initial_ctx;
2685 if (ssl->cert != NULL)
2686 ssl_cert_free(ssl->cert);
2687 ssl->cert = ssl_cert_dup(ctx->cert);
2688 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2689 if (ssl->ctx != NULL)
2690 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2695 #ifndef OPENSSL_NO_STDIO
2696 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2698 return(X509_STORE_set_default_paths(ctx->cert_store));
2701 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2704 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2708 void SSL_set_info_callback(SSL *ssl,
2709 void (*cb)(const SSL *ssl,int type,int val))
2711 ssl->info_callback=cb;
2714 /* One compiler (Diab DCC) doesn't like argument names in returned
2715 function pointer. */
2716 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2718 return ssl->info_callback;
2721 int SSL_state(const SSL *ssl)
2726 void SSL_set_verify_result(SSL *ssl,long arg)
2728 ssl->verify_result=arg;
2731 long SSL_get_verify_result(const SSL *ssl)
2733 return(ssl->verify_result);
2736 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2737 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2739 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2740 new_func, dup_func, free_func);
2743 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2745 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2748 void *SSL_get_ex_data(const SSL *s,int idx)
2750 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2753 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2754 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2756 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2757 new_func, dup_func, free_func);
2760 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2762 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2765 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2767 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2775 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2777 return(ctx->cert_store);
2780 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2782 if (ctx->cert_store != NULL)
2783 X509_STORE_free(ctx->cert_store);
2784 ctx->cert_store=store;
2787 int SSL_want(const SSL *s)
2793 * \brief Set the callback for generating temporary RSA keys.
2794 * \param ctx the SSL context.
2795 * \param cb the callback
2798 #ifndef OPENSSL_NO_RSA
2799 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2803 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2806 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2810 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2816 * \brief The RSA temporary key callback function.
2817 * \param ssl the SSL session.
2818 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2819 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2820 * of the required key in bits.
2821 * \return the temporary RSA key.
2822 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2825 RSA *cb(SSL *ssl,int is_export,int keylength)
2830 * \brief Set the callback for generating temporary DH keys.
2831 * \param ctx the SSL context.
2832 * \param dh the callback
2835 #ifndef OPENSSL_NO_DH
2836 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2839 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2842 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2845 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2849 #ifndef OPENSSL_NO_ECDH
2850 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2853 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2856 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2859 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2863 #ifndef OPENSSL_NO_PSK
2864 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2866 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2868 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2871 if (ctx->psk_identity_hint != NULL)
2872 OPENSSL_free(ctx->psk_identity_hint);
2873 if (identity_hint != NULL)
2875 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2876 if (ctx->psk_identity_hint == NULL)
2880 ctx->psk_identity_hint = NULL;
2884 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2889 if (s->session == NULL)
2890 return 1; /* session not created yet, ignored */
2892 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2894 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2897 if (s->session->psk_identity_hint != NULL)
2898 OPENSSL_free(s->session->psk_identity_hint);
2899 if (identity_hint != NULL)
2901 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2902 if (s->session->psk_identity_hint == NULL)
2906 s->session->psk_identity_hint = NULL;
2910 const char *SSL_get_psk_identity_hint(const SSL *s)
2912 if (s == NULL || s->session == NULL)
2914 return(s->session->psk_identity_hint);
2917 const char *SSL_get_psk_identity(const SSL *s)
2919 if (s == NULL || s->session == NULL)
2921 return(s->session->psk_identity);
2924 void SSL_set_psk_client_callback(SSL *s,
2925 unsigned int (*cb)(SSL *ssl, const char *hint,
2926 char *identity, unsigned int max_identity_len, unsigned char *psk,
2927 unsigned int max_psk_len))
2929 s->psk_client_callback = cb;
2932 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
2933 unsigned int (*cb)(SSL *ssl, const char *hint,
2934 char *identity, unsigned int max_identity_len, unsigned char *psk,
2935 unsigned int max_psk_len))
2937 ctx->psk_client_callback = cb;
2940 void SSL_set_psk_server_callback(SSL *s,
2941 unsigned int (*cb)(SSL *ssl, const char *identity,
2942 unsigned char *psk, unsigned int max_psk_len))
2944 s->psk_server_callback = cb;
2947 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
2948 unsigned int (*cb)(SSL *ssl, const char *identity,
2949 unsigned char *psk, unsigned int max_psk_len))
2951 ctx->psk_server_callback = cb;
2955 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))
2957 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2959 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))
2961 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2964 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
2965 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
2966 * any. If EVP_MD pointer is passed, initializes ctx with this md
2967 * Returns newly allocated ctx;
2970 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
2972 ssl_clear_hash_ctx(hash);
2973 *hash = EVP_MD_CTX_create();
2974 if (md) EVP_DigestInit_ex(*hash,md,NULL);
2977 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
2980 if (*hash) EVP_MD_CTX_destroy(*hash);
2984 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2985 #include "../crypto/bio/bss_file.c"
2988 IMPLEMENT_STACK_OF(SSL_CIPHER)
2989 IMPLEMENT_STACK_OF(SSL_COMP)
2990 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,