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)
1047 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1048 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1050 s->max_send_fragment = larg;
1053 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1057 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1061 case SSL_CTRL_SET_MSG_CALLBACK:
1062 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1066 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1070 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1072 return ctx->sessions;
1075 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1081 case SSL_CTRL_GET_READ_AHEAD:
1082 return(ctx->read_ahead);
1083 case SSL_CTRL_SET_READ_AHEAD:
1085 ctx->read_ahead=larg;
1088 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1089 ctx->msg_callback_arg = parg;
1092 case SSL_CTRL_GET_MAX_CERT_LIST:
1093 return(ctx->max_cert_list);
1094 case SSL_CTRL_SET_MAX_CERT_LIST:
1095 l=ctx->max_cert_list;
1096 ctx->max_cert_list=larg;
1099 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1100 l=ctx->session_cache_size;
1101 ctx->session_cache_size=larg;
1103 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1104 return(ctx->session_cache_size);
1105 case SSL_CTRL_SET_SESS_CACHE_MODE:
1106 l=ctx->session_cache_mode;
1107 ctx->session_cache_mode=larg;
1109 case SSL_CTRL_GET_SESS_CACHE_MODE:
1110 return(ctx->session_cache_mode);
1112 case SSL_CTRL_SESS_NUMBER:
1113 return(lh_SSL_SESSION_num_items(ctx->sessions));
1114 case SSL_CTRL_SESS_CONNECT:
1115 return(ctx->stats.sess_connect);
1116 case SSL_CTRL_SESS_CONNECT_GOOD:
1117 return(ctx->stats.sess_connect_good);
1118 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1119 return(ctx->stats.sess_connect_renegotiate);
1120 case SSL_CTRL_SESS_ACCEPT:
1121 return(ctx->stats.sess_accept);
1122 case SSL_CTRL_SESS_ACCEPT_GOOD:
1123 return(ctx->stats.sess_accept_good);
1124 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1125 return(ctx->stats.sess_accept_renegotiate);
1126 case SSL_CTRL_SESS_HIT:
1127 return(ctx->stats.sess_hit);
1128 case SSL_CTRL_SESS_CB_HIT:
1129 return(ctx->stats.sess_cb_hit);
1130 case SSL_CTRL_SESS_MISSES:
1131 return(ctx->stats.sess_miss);
1132 case SSL_CTRL_SESS_TIMEOUTS:
1133 return(ctx->stats.sess_timeout);
1134 case SSL_CTRL_SESS_CACHE_FULL:
1135 return(ctx->stats.sess_cache_full);
1136 case SSL_CTRL_OPTIONS:
1137 return(ctx->options|=larg);
1139 return(ctx->mode|=larg);
1140 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1141 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1143 ctx->max_send_fragment = larg;
1146 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1150 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1154 case SSL_CTRL_SET_MSG_CALLBACK:
1155 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1159 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1163 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1171 return((l > 0)?1:-1);
1174 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1175 const SSL_CIPHER * const *bp)
1179 l=(*ap)->id-(*bp)->id;
1183 return((l > 0)?1:-1);
1186 /** return a STACK of the ciphers available for the SSL and in order of
1188 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1192 if (s->cipher_list != NULL)
1194 return(s->cipher_list);
1196 else if ((s->ctx != NULL) &&
1197 (s->ctx->cipher_list != NULL))
1199 return(s->ctx->cipher_list);
1205 /** return a STACK of the ciphers available for the SSL and in order of
1207 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1211 if (s->cipher_list_by_id != NULL)
1213 return(s->cipher_list_by_id);
1215 else if ((s->ctx != NULL) &&
1216 (s->ctx->cipher_list_by_id != NULL))
1218 return(s->ctx->cipher_list_by_id);
1224 /** The old interface to get the same thing as SSL_get_ciphers() */
1225 const char *SSL_get_cipher_list(const SSL *s,int n)
1228 STACK_OF(SSL_CIPHER) *sk;
1230 if (s == NULL) return(NULL);
1231 sk=SSL_get_ciphers(s);
1232 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1234 c=sk_SSL_CIPHER_value(sk,n);
1235 if (c == NULL) return(NULL);
1239 /** specify the ciphers to be used by default by the SSL_CTX */
1240 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1242 STACK_OF(SSL_CIPHER) *sk;
1244 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1245 &ctx->cipher_list_by_id,str);
1246 /* ssl_create_cipher_list may return an empty stack if it
1247 * was unable to find a cipher matching the given rule string
1248 * (for example if the rule string specifies a cipher which
1249 * has been disabled). This is not an error as far as
1250 * ssl_create_cipher_list is concerned, and hence
1251 * ctx->cipher_list and ctx->cipher_list_by_id has been
1255 else if (sk_SSL_CIPHER_num(sk) == 0)
1257 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1263 /** specify the ciphers to be used by the SSL */
1264 int SSL_set_cipher_list(SSL *s,const char *str)
1266 STACK_OF(SSL_CIPHER) *sk;
1268 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1269 &s->cipher_list_by_id,str);
1270 /* see comment in SSL_CTX_set_cipher_list */
1273 else if (sk_SSL_CIPHER_num(sk) == 0)
1275 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1281 /* works well for SSLv2, not so good for SSLv3 */
1282 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1285 STACK_OF(SSL_CIPHER) *sk;
1289 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1294 sk=s->session->ciphers;
1295 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1299 c=sk_SSL_CIPHER_value(sk,i);
1317 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1318 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1323 #ifndef OPENSSL_NO_KRB5
1324 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1325 #endif /* OPENSSL_NO_KRB5 */
1327 if (sk == NULL) return(0);
1330 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1332 c=sk_SSL_CIPHER_value(sk,i);
1333 #ifndef OPENSSL_NO_KRB5
1334 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1337 #endif /* OPENSSL_NO_KRB5 */
1338 #ifndef OPENSSL_NO_PSK
1339 /* with PSK there must be client callback set */
1340 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1341 s->psk_client_callback == NULL)
1343 #endif /* OPENSSL_NO_PSK */
1344 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1350 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1351 STACK_OF(SSL_CIPHER) **skp)
1353 const SSL_CIPHER *c;
1354 STACK_OF(SSL_CIPHER) *sk;
1357 n=ssl_put_cipher_by_char(s,NULL,NULL);
1360 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1363 if ((skp == NULL) || (*skp == NULL))
1364 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1368 sk_SSL_CIPHER_zero(sk);
1371 for (i=0; i<num; i+=n)
1373 c=ssl_get_cipher_by_char(s,p);
1377 if (!sk_SSL_CIPHER_push(sk,c))
1379 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1389 if ((skp == NULL) || (*skp == NULL))
1390 sk_SSL_CIPHER_free(sk);
1395 #ifndef OPENSSL_NO_TLSEXT
1396 /** return a servername extension value if provided in Client Hello, or NULL.
1397 * So far, only host_name types are defined (RFC 3546).
1400 const char *SSL_get_servername(const SSL *s, const int type)
1402 if (type != TLSEXT_NAMETYPE_host_name)
1405 return s->session && !s->tlsext_hostname ?
1406 s->session->tlsext_hostname :
1410 int SSL_get_servername_type(const SSL *s)
1412 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1413 return TLSEXT_NAMETYPE_host_name;
1418 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1423 ((unsigned int) a->session_id[0] )|
1424 ((unsigned int) a->session_id[1]<< 8L)|
1425 ((unsigned long)a->session_id[2]<<16L)|
1426 ((unsigned long)a->session_id[3]<<24L);
1430 /* NB: If this function (or indeed the hash function which uses a sort of
1431 * coarser function than this one) is changed, ensure
1432 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1433 * able to construct an SSL_SESSION that will collide with any existing session
1434 * with a matching session ID. */
1435 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1437 if (a->ssl_version != b->ssl_version)
1439 if (a->session_id_length != b->session_id_length)
1441 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1444 /* These wrapper functions should remain rather than redeclaring
1445 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1446 * variable. The reason is that the functions aren't static, they're exposed via
1448 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1449 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1451 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1457 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1461 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1463 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1466 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1470 memset(ret,0,sizeof(SSL_CTX));
1474 ret->cert_store=NULL;
1475 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1476 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1477 ret->session_cache_head=NULL;
1478 ret->session_cache_tail=NULL;
1480 /* We take the system default */
1481 ret->session_timeout=meth->get_timeout();
1483 ret->new_session_cb=0;
1484 ret->remove_session_cb=0;
1485 ret->get_session_cb=0;
1486 ret->generate_session_id=0;
1488 memset((char *)&ret->stats,0,sizeof(ret->stats));
1491 ret->quiet_shutdown=0;
1493 /* ret->cipher=NULL;*/
1494 /* ret->s2->challenge=NULL;
1495 ret->master_key=NULL;
1497 ret->s2->conn_id=NULL; */
1499 ret->info_callback=NULL;
1501 ret->app_verify_callback=0;
1502 ret->app_verify_arg=NULL;
1504 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1506 ret->msg_callback=0;
1507 ret->msg_callback_arg=NULL;
1508 ret->verify_mode=SSL_VERIFY_NONE;
1510 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1512 ret->sid_ctx_length=0;
1513 ret->default_verify_callback=NULL;
1514 if ((ret->cert=ssl_cert_new()) == NULL)
1517 ret->default_passwd_callback=0;
1518 ret->default_passwd_callback_userdata=NULL;
1519 ret->client_cert_cb=0;
1520 ret->app_gen_cookie_cb=0;
1521 ret->app_verify_cookie_cb=0;
1523 ret->sessions=lh_SSL_SESSION_new();
1524 if (ret->sessions == NULL) goto err;
1525 ret->cert_store=X509_STORE_new();
1526 if (ret->cert_store == NULL) goto err;
1528 ssl_create_cipher_list(ret->method,
1529 &ret->cipher_list,&ret->cipher_list_by_id,
1530 SSL_DEFAULT_CIPHER_LIST);
1531 if (ret->cipher_list == NULL
1532 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1534 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1538 ret->param = X509_VERIFY_PARAM_new();
1542 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1544 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1547 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1549 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1552 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1554 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1558 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1561 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1563 ret->extra_certs=NULL;
1564 ret->comp_methods=SSL_COMP_get_compression_methods();
1566 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1568 #ifndef OPENSSL_NO_TLSEXT
1569 ret->tlsext_servername_callback = 0;
1570 ret->tlsext_servername_arg = NULL;
1571 /* Setup RFC4507 ticket keys */
1572 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1573 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1574 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1575 ret->options |= SSL_OP_NO_TICKET;
1577 ret->tlsext_status_cb = 0;
1578 ret->tlsext_status_arg = NULL;
1581 #ifndef OPENSSL_NO_PSK
1582 ret->psk_identity_hint=NULL;
1583 ret->psk_client_callback=NULL;
1584 ret->psk_server_callback=NULL;
1586 #ifndef OPENSSL_NO_BUF_FREELISTS
1587 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1588 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1589 if (!ret->rbuf_freelist)
1591 ret->rbuf_freelist->chunklen = 0;
1592 ret->rbuf_freelist->len = 0;
1593 ret->rbuf_freelist->head = NULL;
1594 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1595 if (!ret->wbuf_freelist)
1597 OPENSSL_free(ret->rbuf_freelist);
1600 ret->wbuf_freelist->chunklen = 0;
1601 ret->wbuf_freelist->len = 0;
1602 ret->wbuf_freelist->head = NULL;
1604 #ifndef OPENSSL_NO_ENGINE
1605 ret->client_cert_engine = NULL;
1606 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1607 #define eng_strx(x) #x
1608 #define eng_str(x) eng_strx(x)
1609 /* Use specific client engine automatically... ignore errors */
1612 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1616 ENGINE_load_builtin_engines();
1617 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1619 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1627 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1629 if (ret != NULL) SSL_CTX_free(ret);
1634 static void SSL_COMP_free(SSL_COMP *comp)
1635 { OPENSSL_free(comp); }
1638 #ifndef OPENSSL_NO_BUF_FREELISTS
1640 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1642 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1643 for (ent = list->head; ent; ent = next)
1652 void SSL_CTX_free(SSL_CTX *a)
1656 if (a == NULL) return;
1658 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1660 REF_PRINT("SSL_CTX",a);
1666 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1672 X509_VERIFY_PARAM_free(a->param);
1675 * Free internal session cache. However: the remove_cb() may reference
1676 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1677 * after the sessions were flushed.
1678 * As the ex_data handling routines might also touch the session cache,
1679 * the most secure solution seems to be: empty (flush) the cache, then
1680 * free ex_data, then finally free the cache.
1681 * (See ticket [openssl.org #212].)
1683 if (a->sessions != NULL)
1684 SSL_CTX_flush_sessions(a,0);
1686 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1688 if (a->sessions != NULL)
1689 lh_SSL_SESSION_free(a->sessions);
1691 if (a->cert_store != NULL)
1692 X509_STORE_free(a->cert_store);
1693 if (a->cipher_list != NULL)
1694 sk_SSL_CIPHER_free(a->cipher_list);
1695 if (a->cipher_list_by_id != NULL)
1696 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1697 if (a->cert != NULL)
1698 ssl_cert_free(a->cert);
1699 if (a->client_CA != NULL)
1700 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1701 if (a->extra_certs != NULL)
1702 sk_X509_pop_free(a->extra_certs,X509_free);
1703 #if 0 /* This should never be done, since it removes a global database */
1704 if (a->comp_methods != NULL)
1705 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1707 a->comp_methods = NULL;
1710 #ifndef OPENSSL_NO_PSK
1711 if (a->psk_identity_hint)
1712 OPENSSL_free(a->psk_identity_hint);
1714 #ifndef OPENSSL_NO_ENGINE
1715 if (a->client_cert_engine)
1716 ENGINE_finish(a->client_cert_engine);
1719 #ifndef OPENSSL_NO_BUF_FREELISTS
1720 if (a->wbuf_freelist)
1721 ssl_buf_freelist_free(a->wbuf_freelist);
1722 if (a->rbuf_freelist)
1723 ssl_buf_freelist_free(a->rbuf_freelist);
1729 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1731 ctx->default_passwd_callback=cb;
1734 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1736 ctx->default_passwd_callback_userdata=u;
1739 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1741 ctx->app_verify_callback=cb;
1742 ctx->app_verify_arg=arg;
1745 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1747 ctx->verify_mode=mode;
1748 ctx->default_verify_callback=cb;
1751 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1753 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1756 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
1759 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1760 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1761 int rsa_tmp_export,dh_tmp_export,kl;
1762 unsigned long mask_k,mask_a,emask_k,emask_a;
1763 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1764 #ifndef OPENSSL_NO_ECDH
1768 EVP_PKEY *ecc_pkey = NULL;
1769 int signature_nid = 0;
1771 if (c == NULL) return;
1773 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1775 #ifndef OPENSSL_NO_RSA
1776 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1777 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1778 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1780 rsa_tmp=rsa_tmp_export=0;
1782 #ifndef OPENSSL_NO_DH
1783 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1784 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1785 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1787 dh_tmp=dh_tmp_export=0;
1790 #ifndef OPENSSL_NO_ECDH
1791 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1793 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1794 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1795 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1796 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1797 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1798 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1799 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1800 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1801 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1802 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1803 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1804 /* FIX THIS EAY EAY EAY */
1805 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1806 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1807 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1808 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1817 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1818 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
1819 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1822 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1823 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1824 mask_k |= SSL_kGOST;
1825 mask_a |= SSL_aGOST01;
1827 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
1828 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1829 mask_k |= SSL_kGOST;
1830 mask_a |= SSL_aGOST94;
1833 if (rsa_enc || (rsa_tmp && rsa_sign))
1835 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1839 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1840 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1841 (rsa_enc || rsa_sign || dsa_sign))
1843 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1844 (rsa_enc || rsa_sign || dsa_sign))
1854 if (dh_rsa) mask_k|=SSL_kDHr;
1855 if (dh_rsa_export) emask_k|=SSL_kDHr;
1857 if (dh_dsa) mask_k|=SSL_kDHd;
1858 if (dh_dsa_export) emask_k|=SSL_kDHd;
1860 if (rsa_enc || rsa_sign)
1875 #ifndef OPENSSL_NO_KRB5
1882 /* An ECC certificate may be usable for ECDH and/or
1883 * ECDSA cipher suites depending on the key usage extension.
1887 /* This call populates extension flags (ex_flags) */
1888 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1889 X509_check_purpose(x, -1, 0);
1890 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1891 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1892 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1893 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1894 ecc_pkey = X509_get_pubkey(x);
1895 ecc_pkey_size = (ecc_pkey != NULL) ?
1896 EVP_PKEY_bits(ecc_pkey) : 0;
1897 EVP_PKEY_free(ecc_pkey);
1898 if ((x->sig_alg) && (x->sig_alg->algorithm))
1899 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1900 #ifndef OPENSSL_NO_ECDH
1903 const char *sig = OBJ_nid2ln(signature_nid);
1910 if (strstr(sig, "WithRSA"))
1914 if (ecc_pkey_size <= 163)
1916 emask_k|=SSL_kECDHr;
1921 if (signature_nid == NID_ecdsa_with_SHA1)
1925 if (ecc_pkey_size <= 163)
1927 emask_k|=SSL_kECDHe;
1933 #ifndef OPENSSL_NO_ECDSA
1937 emask_a|=SSL_aECDSA;
1942 #ifndef OPENSSL_NO_ECDH
1946 emask_k|=SSL_kEECDH;
1950 #ifndef OPENSSL_NO_PSK
1953 emask_k |= SSL_kPSK;
1954 emask_a |= SSL_aPSK;
1959 c->export_mask_k=emask_k;
1960 c->export_mask_a=emask_a;
1964 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1965 #define ku_reject(x, usage) \
1966 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1968 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
1970 unsigned long alg_k, alg_a;
1971 EVP_PKEY *pkey = NULL;
1973 int signature_nid = 0;
1975 alg_k = cs->algorithm_mkey;
1976 alg_a = cs->algorithm_auth;
1978 if (SSL_C_IS_EXPORT(cs))
1980 /* ECDH key length in export ciphers must be <= 163 bits */
1981 pkey = X509_get_pubkey(x);
1982 if (pkey == NULL) return 0;
1983 keysize = EVP_PKEY_bits(pkey);
1984 EVP_PKEY_free(pkey);
1985 if (keysize > 163) return 0;
1988 /* This call populates the ex_flags field correctly */
1989 X509_check_purpose(x, -1, 0);
1990 if ((x->sig_alg) && (x->sig_alg->algorithm))
1991 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1992 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
1994 /* key usage, if present, must allow key agreement */
1995 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1997 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2000 if (alg_k & SSL_kECDHe)
2002 /* signature alg must be ECDSA */
2003 if (signature_nid != NID_ecdsa_with_SHA1)
2005 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2009 if (alg_k & SSL_kECDHr)
2011 /* signature alg must be RSA */
2013 const char *sig = OBJ_nid2ln(signature_nid);
2019 if (strstr(sig, "WithRSA") == NULL)
2021 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2026 if (alg_a & SSL_aECDSA)
2028 /* key usage, if present, must allow signing */
2029 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2031 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2036 return 1; /* all checks are ok */
2039 /* THIS NEEDS CLEANING UP */
2040 X509 *ssl_get_server_send_cert(SSL *s)
2042 unsigned long alg_k,alg_a,mask_k,mask_a;
2047 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2048 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
2051 mask_k = c->export_mask_k;
2052 mask_a = c->export_mask_a;
2060 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2061 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2063 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2065 /* we don't need to look at SSL_kEECDH
2066 * since no certificate is needed for
2067 * anon ECDH and for authenticated
2068 * EECDH, the check for the auth
2069 * algorithm will set i correctly
2070 * NOTE: For ECDH-RSA, we need an ECC
2071 * not an RSA cert but for EECDH-RSA
2072 * we need an RSA cert. Placing the
2073 * checks for SSL_kECDH before RSA
2074 * checks ensures the correct cert is chosen.
2078 else if (alg_a & SSL_aECDSA)
2082 else if (alg_k & SSL_kDHr)
2084 else if (alg_k & SSL_kDHd)
2086 else if (alg_a & SSL_aDSS)
2087 i=SSL_PKEY_DSA_SIGN;
2088 else if (alg_a & SSL_aRSA)
2090 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2091 i=SSL_PKEY_RSA_SIGN;
2095 else if (alg_a & SSL_aKRB5)
2097 /* VRS something else here? */
2100 else if (alg_a & SSL_aGOST94)
2102 else if (alg_a & SSL_aGOST01)
2104 else /* if (alg_a & SSL_aNULL) */
2106 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2109 if (c->pkeys[i].x509 == NULL) return(NULL);
2111 return(c->pkeys[i].x509);
2114 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher)
2116 unsigned long alg_a;
2119 alg_a = cipher->algorithm_auth;
2122 if ((alg_a & SSL_aDSS) &&
2123 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2124 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2125 else if (alg_a & SSL_aRSA)
2127 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2128 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2129 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2130 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2134 else if ((alg_a & SSL_aECDSA) &&
2135 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2136 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2137 else /* if (alg_a & SSL_aNULL) */
2139 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2144 void ssl_update_cache(SSL *s,int mode)
2148 /* If the session_id_length is 0, we are not supposed to cache it,
2149 * and it would be rather hard to do anyway :-) */
2150 if (s->session->session_id_length == 0) return;
2152 i=s->session_ctx->session_cache_mode;
2153 if ((i & mode) && (!s->hit)
2154 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2155 || SSL_CTX_add_session(s->session_ctx,s->session))
2156 && (s->session_ctx->new_session_cb != NULL))
2158 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2159 if (!s->session_ctx->new_session_cb(s,s->session))
2160 SSL_SESSION_free(s->session);
2163 /* auto flush every 255 connections */
2164 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2165 ((i & mode) == mode))
2167 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2168 ?s->session_ctx->stats.sess_connect_good
2169 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2171 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2176 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2181 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2186 if (s->method != meth)
2188 if (s->handshake_func != NULL)
2189 conn=(s->handshake_func == s->method->ssl_connect);
2191 if (s->method->version == meth->version)
2195 s->method->ssl_free(s);
2197 ret=s->method->ssl_new(s);
2201 s->handshake_func=meth->ssl_connect;
2203 s->handshake_func=meth->ssl_accept;
2208 int SSL_get_error(const SSL *s,int i)
2214 if (i > 0) return(SSL_ERROR_NONE);
2216 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2217 * etc, where we do encode the error */
2218 if ((l=ERR_peek_error()) != 0)
2220 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2221 return(SSL_ERROR_SYSCALL);
2223 return(SSL_ERROR_SSL);
2226 if ((i < 0) && SSL_want_read(s))
2228 bio=SSL_get_rbio(s);
2229 if (BIO_should_read(bio))
2230 return(SSL_ERROR_WANT_READ);
2231 else if (BIO_should_write(bio))
2232 /* This one doesn't make too much sense ... We never try
2233 * to write to the rbio, and an application program where
2234 * rbio and wbio are separate couldn't even know what it
2236 * However if we ever set s->rwstate incorrectly
2237 * (so that we have SSL_want_read(s) instead of
2238 * SSL_want_write(s)) and rbio and wbio *are* the same,
2239 * this test works around that bug; so it might be safer
2241 return(SSL_ERROR_WANT_WRITE);
2242 else if (BIO_should_io_special(bio))
2244 reason=BIO_get_retry_reason(bio);
2245 if (reason == BIO_RR_CONNECT)
2246 return(SSL_ERROR_WANT_CONNECT);
2247 else if (reason == BIO_RR_ACCEPT)
2248 return(SSL_ERROR_WANT_ACCEPT);
2250 return(SSL_ERROR_SYSCALL); /* unknown */
2254 if ((i < 0) && SSL_want_write(s))
2256 bio=SSL_get_wbio(s);
2257 if (BIO_should_write(bio))
2258 return(SSL_ERROR_WANT_WRITE);
2259 else if (BIO_should_read(bio))
2260 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2261 return(SSL_ERROR_WANT_READ);
2262 else if (BIO_should_io_special(bio))
2264 reason=BIO_get_retry_reason(bio);
2265 if (reason == BIO_RR_CONNECT)
2266 return(SSL_ERROR_WANT_CONNECT);
2267 else if (reason == BIO_RR_ACCEPT)
2268 return(SSL_ERROR_WANT_ACCEPT);
2270 return(SSL_ERROR_SYSCALL);
2273 if ((i < 0) && SSL_want_x509_lookup(s))
2275 return(SSL_ERROR_WANT_X509_LOOKUP);
2280 if (s->version == SSL2_VERSION)
2282 /* assume it is the socket being closed */
2283 return(SSL_ERROR_ZERO_RETURN);
2287 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2288 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2289 return(SSL_ERROR_ZERO_RETURN);
2292 return(SSL_ERROR_SYSCALL);
2295 int SSL_do_handshake(SSL *s)
2299 if (s->handshake_func == NULL)
2301 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2305 s->method->ssl_renegotiate_check(s);
2307 if (SSL_in_init(s) || SSL_in_before(s))
2309 ret=s->handshake_func(s);
2314 /* For the next 2 functions, SSL_clear() sets shutdown and so
2315 * one of these calls will reset it */
2316 void SSL_set_accept_state(SSL *s)
2320 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2321 s->handshake_func=s->method->ssl_accept;
2322 /* clear the current cipher */
2323 ssl_clear_cipher_ctx(s);
2324 ssl_clear_hash_ctx(&s->read_hash);
2325 ssl_clear_hash_ctx(&s->write_hash);
2328 void SSL_set_connect_state(SSL *s)
2332 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2333 s->handshake_func=s->method->ssl_connect;
2334 /* clear the current cipher */
2335 ssl_clear_cipher_ctx(s);
2336 ssl_clear_hash_ctx(&s->read_hash);
2337 ssl_clear_hash_ctx(&s->write_hash);
2340 int ssl_undefined_function(SSL *s)
2342 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2346 int ssl_undefined_void_function(void)
2348 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2352 int ssl_undefined_const_function(const SSL *s)
2354 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2358 SSL_METHOD *ssl_bad_method(int ver)
2360 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2364 const char *SSL_get_version(const SSL *s)
2366 if (s->version == TLS1_VERSION)
2368 else if (s->version == SSL3_VERSION)
2370 else if (s->version == SSL2_VERSION)
2376 SSL *SSL_dup(SSL *s)
2378 STACK_OF(X509_NAME) *sk;
2383 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2386 ret->version = s->version;
2387 ret->type = s->type;
2388 ret->method = s->method;
2390 if (s->session != NULL)
2392 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2393 SSL_copy_session_id(ret,s);
2397 /* No session has been established yet, so we have to expect
2398 * that s->cert or ret->cert will be changed later --
2399 * they should not both point to the same object,
2400 * and thus we can't use SSL_copy_session_id. */
2402 ret->method->ssl_free(ret);
2403 ret->method = s->method;
2404 ret->method->ssl_new(ret);
2406 if (s->cert != NULL)
2408 if (ret->cert != NULL)
2410 ssl_cert_free(ret->cert);
2412 ret->cert = ssl_cert_dup(s->cert);
2413 if (ret->cert == NULL)
2417 SSL_set_session_id_context(ret,
2418 s->sid_ctx, s->sid_ctx_length);
2421 ret->options=s->options;
2423 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2424 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2425 ret->msg_callback = s->msg_callback;
2426 ret->msg_callback_arg = s->msg_callback_arg;
2427 SSL_set_verify(ret,SSL_get_verify_mode(s),
2428 SSL_get_verify_callback(s));
2429 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2430 ret->generate_session_id = s->generate_session_id;
2432 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2434 ret->debug=s->debug;
2436 /* copy app data, a little dangerous perhaps */
2437 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2440 /* setup rbio, and wbio */
2441 if (s->rbio != NULL)
2443 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2446 if (s->wbio != NULL)
2448 if (s->wbio != s->rbio)
2450 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2454 ret->wbio=ret->rbio;
2456 ret->rwstate = s->rwstate;
2457 ret->in_handshake = s->in_handshake;
2458 ret->handshake_func = s->handshake_func;
2459 ret->server = s->server;
2460 ret->new_session = s->new_session;
2461 ret->quiet_shutdown = s->quiet_shutdown;
2462 ret->shutdown=s->shutdown;
2463 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2464 ret->rstate=s->rstate;
2465 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2468 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2470 /* dup the cipher_list and cipher_list_by_id stacks */
2471 if (s->cipher_list != NULL)
2473 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2476 if (s->cipher_list_by_id != NULL)
2477 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2481 /* Dup the client_CA list */
2482 if (s->client_CA != NULL)
2484 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2486 for (i=0; i<sk_X509_NAME_num(sk); i++)
2488 xn=sk_X509_NAME_value(sk,i);
2489 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2500 if (ret != NULL) SSL_free(ret);
2506 void ssl_clear_cipher_ctx(SSL *s)
2508 if (s->enc_read_ctx != NULL)
2510 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2511 OPENSSL_free(s->enc_read_ctx);
2512 s->enc_read_ctx=NULL;
2514 if (s->enc_write_ctx != NULL)
2516 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2517 OPENSSL_free(s->enc_write_ctx);
2518 s->enc_write_ctx=NULL;
2520 #ifndef OPENSSL_NO_COMP
2521 if (s->expand != NULL)
2523 COMP_CTX_free(s->expand);
2526 if (s->compress != NULL)
2528 COMP_CTX_free(s->compress);
2534 /* Fix this function so that it takes an optional type parameter */
2535 X509 *SSL_get_certificate(const SSL *s)
2537 if (s->cert != NULL)
2538 return(s->cert->key->x509);
2543 /* Fix this function so that it takes an optional type parameter */
2544 EVP_PKEY *SSL_get_privatekey(SSL *s)
2546 if (s->cert != NULL)
2547 return(s->cert->key->privatekey);
2552 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2554 if ((s->session != NULL) && (s->session->cipher != NULL))
2555 return(s->session->cipher);
2558 #ifdef OPENSSL_NO_COMP
2559 const void *SSL_get_current_compression(SSL *s)
2563 const void *SSL_get_current_expansion(SSL *s)
2569 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2571 if (s->compress != NULL)
2572 return(s->compress->meth);
2576 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2578 if (s->expand != NULL)
2579 return(s->expand->meth);
2584 int ssl_init_wbio_buffer(SSL *s,int push)
2588 if (s->bbio == NULL)
2590 bbio=BIO_new(BIO_f_buffer());
2591 if (bbio == NULL) return(0);
2597 if (s->bbio == s->wbio)
2598 s->wbio=BIO_pop(s->wbio);
2600 (void)BIO_reset(bbio);
2601 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2602 if (!BIO_set_read_buffer_size(bbio,1))
2604 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2609 if (s->wbio != bbio)
2610 s->wbio=BIO_push(bbio,s->wbio);
2614 if (s->wbio == bbio)
2615 s->wbio=BIO_pop(bbio);
2620 void ssl_free_wbio_buffer(SSL *s)
2622 if (s->bbio == NULL) return;
2624 if (s->bbio == s->wbio)
2626 /* remove buffering */
2627 s->wbio=BIO_pop(s->wbio);
2628 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2629 assert(s->wbio != NULL);
2636 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2638 ctx->quiet_shutdown=mode;
2641 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2643 return(ctx->quiet_shutdown);
2646 void SSL_set_quiet_shutdown(SSL *s,int mode)
2648 s->quiet_shutdown=mode;
2651 int SSL_get_quiet_shutdown(const SSL *s)
2653 return(s->quiet_shutdown);
2656 void SSL_set_shutdown(SSL *s,int mode)
2661 int SSL_get_shutdown(const SSL *s)
2663 return(s->shutdown);
2666 int SSL_version(const SSL *s)
2671 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2676 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2678 if (ssl->ctx == ctx)
2680 #ifndef OPENSSL_NO_TLSEXT
2682 ctx = ssl->initial_ctx;
2684 if (ssl->cert != NULL)
2685 ssl_cert_free(ssl->cert);
2686 ssl->cert = ssl_cert_dup(ctx->cert);
2687 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2688 if (ssl->ctx != NULL)
2689 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2694 #ifndef OPENSSL_NO_STDIO
2695 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2697 return(X509_STORE_set_default_paths(ctx->cert_store));
2700 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2703 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2707 void SSL_set_info_callback(SSL *ssl,
2708 void (*cb)(const SSL *ssl,int type,int val))
2710 ssl->info_callback=cb;
2713 /* One compiler (Diab DCC) doesn't like argument names in returned
2714 function pointer. */
2715 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2717 return ssl->info_callback;
2720 int SSL_state(const SSL *ssl)
2725 void SSL_set_verify_result(SSL *ssl,long arg)
2727 ssl->verify_result=arg;
2730 long SSL_get_verify_result(const SSL *ssl)
2732 return(ssl->verify_result);
2735 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2736 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2738 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2739 new_func, dup_func, free_func);
2742 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2744 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2747 void *SSL_get_ex_data(const SSL *s,int idx)
2749 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2752 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2753 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2755 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2756 new_func, dup_func, free_func);
2759 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2761 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2764 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2766 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2774 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2776 return(ctx->cert_store);
2779 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2781 if (ctx->cert_store != NULL)
2782 X509_STORE_free(ctx->cert_store);
2783 ctx->cert_store=store;
2786 int SSL_want(const SSL *s)
2792 * \brief Set the callback for generating temporary RSA keys.
2793 * \param ctx the SSL context.
2794 * \param cb the callback
2797 #ifndef OPENSSL_NO_RSA
2798 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2802 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2805 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2809 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2815 * \brief The RSA temporary key callback function.
2816 * \param ssl the SSL session.
2817 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2818 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2819 * of the required key in bits.
2820 * \return the temporary RSA key.
2821 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2824 RSA *cb(SSL *ssl,int is_export,int keylength)
2829 * \brief Set the callback for generating temporary DH keys.
2830 * \param ctx the SSL context.
2831 * \param dh the callback
2834 #ifndef OPENSSL_NO_DH
2835 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2838 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2841 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2844 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2848 #ifndef OPENSSL_NO_ECDH
2849 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2852 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2855 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2858 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2862 #ifndef OPENSSL_NO_PSK
2863 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2865 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2867 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2870 if (ctx->psk_identity_hint != NULL)
2871 OPENSSL_free(ctx->psk_identity_hint);
2872 if (identity_hint != NULL)
2874 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2875 if (ctx->psk_identity_hint == NULL)
2879 ctx->psk_identity_hint = NULL;
2883 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2888 if (s->session == NULL)
2889 return 1; /* session not created yet, ignored */
2891 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2893 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2896 if (s->session->psk_identity_hint != NULL)
2897 OPENSSL_free(s->session->psk_identity_hint);
2898 if (identity_hint != NULL)
2900 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2901 if (s->session->psk_identity_hint == NULL)
2905 s->session->psk_identity_hint = NULL;
2909 const char *SSL_get_psk_identity_hint(const SSL *s)
2911 if (s == NULL || s->session == NULL)
2913 return(s->session->psk_identity_hint);
2916 const char *SSL_get_psk_identity(const SSL *s)
2918 if (s == NULL || s->session == NULL)
2920 return(s->session->psk_identity);
2923 void SSL_set_psk_client_callback(SSL *s,
2924 unsigned int (*cb)(SSL *ssl, const char *hint,
2925 char *identity, unsigned int max_identity_len, unsigned char *psk,
2926 unsigned int max_psk_len))
2928 s->psk_client_callback = cb;
2931 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
2932 unsigned int (*cb)(SSL *ssl, const char *hint,
2933 char *identity, unsigned int max_identity_len, unsigned char *psk,
2934 unsigned int max_psk_len))
2936 ctx->psk_client_callback = cb;
2939 void SSL_set_psk_server_callback(SSL *s,
2940 unsigned int (*cb)(SSL *ssl, const char *identity,
2941 unsigned char *psk, unsigned int max_psk_len))
2943 s->psk_server_callback = cb;
2946 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
2947 unsigned int (*cb)(SSL *ssl, const char *identity,
2948 unsigned char *psk, unsigned int max_psk_len))
2950 ctx->psk_server_callback = cb;
2954 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))
2956 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2958 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))
2960 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2963 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
2964 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
2965 * any. If EVP_MD pointer is passed, initializes ctx with this md
2966 * Returns newly allocated ctx;
2969 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
2971 ssl_clear_hash_ctx(hash);
2972 *hash = EVP_MD_CTX_create();
2973 if (md) EVP_DigestInit_ex(*hash,md,NULL);
2976 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
2979 if (*hash) EVP_MD_CTX_destroy(*hash);
2983 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2984 #include "../crypto/bio/bss_file.c"
2987 IMPLEMENT_STACK_OF(SSL_CIPHER)
2988 IMPLEMENT_STACK_OF(SSL_COMP)