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->initial_ctx) SSL_CTX_free(s->initial_ctx);
551 #ifndef OPENSSL_NO_EC
552 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
553 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
554 #endif /* OPENSSL_NO_EC */
555 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
556 if (s->tlsext_ocsp_exts)
557 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
558 X509_EXTENSION_free);
559 if (s->tlsext_ocsp_ids)
560 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
561 if (s->tlsext_ocsp_resp)
562 OPENSSL_free(s->tlsext_ocsp_resp);
565 if (s->client_CA != NULL)
566 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
568 if (s->method != NULL) s->method->ssl_free(s);
570 #ifndef OPENSSL_NO_KRB5
571 if (s->kssl_ctx != NULL)
572 kssl_ctx_free(s->kssl_ctx);
573 #endif /* OPENSSL_NO_KRB5 */
578 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
580 /* If the output buffering BIO is still in place, remove it
584 if (s->wbio == s->bbio)
586 s->wbio=s->wbio->next_bio;
587 s->bbio->next_bio=NULL;
590 if ((s->rbio != NULL) && (s->rbio != rbio))
591 BIO_free_all(s->rbio);
592 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
593 BIO_free_all(s->wbio);
598 BIO *SSL_get_rbio(const SSL *s)
601 BIO *SSL_get_wbio(const SSL *s)
604 int SSL_get_fd(const SSL *s)
606 return(SSL_get_rfd(s));
609 int SSL_get_rfd(const SSL *s)
615 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
621 int SSL_get_wfd(const SSL *s)
627 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
633 #ifndef OPENSSL_NO_SOCK
634 int SSL_set_fd(SSL *s,int fd)
639 bio=BIO_new(BIO_s_socket());
643 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
646 BIO_set_fd(bio,fd,BIO_NOCLOSE);
647 SSL_set_bio(s,bio,bio);
653 int SSL_set_wfd(SSL *s,int fd)
658 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
659 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
661 bio=BIO_new(BIO_s_socket());
664 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
665 BIO_set_fd(bio,fd,BIO_NOCLOSE);
666 SSL_set_bio(s,SSL_get_rbio(s),bio);
669 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
675 int SSL_set_rfd(SSL *s,int fd)
680 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
681 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
683 bio=BIO_new(BIO_s_socket());
687 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
690 BIO_set_fd(bio,fd,BIO_NOCLOSE);
691 SSL_set_bio(s,bio,SSL_get_wbio(s));
694 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
702 /* return length of latest Finished message we sent, copy to 'buf' */
703 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
709 ret = s->s3->tmp.finish_md_len;
712 memcpy(buf, s->s3->tmp.finish_md, count);
717 /* return length of latest Finished message we expected, copy to 'buf' */
718 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
724 ret = s->s3->tmp.peer_finish_md_len;
727 memcpy(buf, s->s3->tmp.peer_finish_md, count);
733 int SSL_get_verify_mode(const SSL *s)
735 return(s->verify_mode);
738 int SSL_get_verify_depth(const SSL *s)
740 return X509_VERIFY_PARAM_get_depth(s->param);
743 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
745 return(s->verify_callback);
748 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
750 return(ctx->verify_mode);
753 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
755 return X509_VERIFY_PARAM_get_depth(ctx->param);
758 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
760 return(ctx->default_verify_callback);
763 void SSL_set_verify(SSL *s,int mode,
764 int (*callback)(int ok,X509_STORE_CTX *ctx))
767 if (callback != NULL)
768 s->verify_callback=callback;
771 void SSL_set_verify_depth(SSL *s,int depth)
773 X509_VERIFY_PARAM_set_depth(s->param, depth);
776 void SSL_set_read_ahead(SSL *s,int yes)
781 int SSL_get_read_ahead(const SSL *s)
783 return(s->read_ahead);
786 int SSL_pending(const SSL *s)
788 /* SSL_pending cannot work properly if read-ahead is enabled
789 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
790 * and it is impossible to fix since SSL_pending cannot report
791 * errors that may be observed while scanning the new data.
792 * (Note that SSL_pending() is often used as a boolean value,
793 * so we'd better not return -1.)
795 return(s->method->ssl_pending(s));
798 X509 *SSL_get_peer_certificate(const SSL *s)
802 if ((s == NULL) || (s->session == NULL))
807 if (r == NULL) return(r);
809 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
814 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
818 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
821 r=s->session->sess_cert->cert_chain;
823 /* If we are a client, cert_chain includes the peer's own
824 * certificate; if we are a server, it does not. */
829 /* Now in theory, since the calling process own 't' it should be safe to
830 * modify. We need to be able to read f without being hassled */
831 void SSL_copy_session_id(SSL *t,const SSL *f)
835 /* Do we need to to SSL locking? */
836 SSL_set_session(t,SSL_get_session(f));
838 /* what if we are setup as SSLv2 but want to talk SSLv3 or
840 if (t->method != f->method)
842 t->method->ssl_free(t); /* cleanup current */
843 t->method=f->method; /* change method */
844 t->method->ssl_new(t); /* setup new */
850 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
855 if (tmp != NULL) ssl_cert_free(tmp);
856 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
859 /* Fix this so it checks all the valid key/cert options */
860 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
862 if ( (ctx == NULL) ||
863 (ctx->cert == NULL) ||
864 (ctx->cert->key->x509 == NULL))
866 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
869 if (ctx->cert->key->privatekey == NULL)
871 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
874 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
877 /* Fix this function so that it takes an optional type parameter */
878 int SSL_check_private_key(const SSL *ssl)
882 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
885 if (ssl->cert == NULL)
887 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
890 if (ssl->cert->key->x509 == NULL)
892 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
895 if (ssl->cert->key->privatekey == NULL)
897 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
900 return(X509_check_private_key(ssl->cert->key->x509,
901 ssl->cert->key->privatekey));
904 int SSL_accept(SSL *s)
906 if (s->handshake_func == 0)
907 /* Not properly initialized yet */
908 SSL_set_accept_state(s);
910 return(s->method->ssl_accept(s));
913 int SSL_connect(SSL *s)
915 if (s->handshake_func == 0)
916 /* Not properly initialized yet */
917 SSL_set_connect_state(s);
919 return(s->method->ssl_connect(s));
922 long SSL_get_default_timeout(const SSL *s)
924 return(s->method->get_timeout());
927 int SSL_read(SSL *s,void *buf,int num)
929 if (s->handshake_func == 0)
931 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
935 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
937 s->rwstate=SSL_NOTHING;
940 return(s->method->ssl_read(s,buf,num));
943 int SSL_peek(SSL *s,void *buf,int num)
945 if (s->handshake_func == 0)
947 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
951 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
955 return(s->method->ssl_peek(s,buf,num));
958 int SSL_write(SSL *s,const void *buf,int num)
960 if (s->handshake_func == 0)
962 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
966 if (s->shutdown & SSL_SENT_SHUTDOWN)
968 s->rwstate=SSL_NOTHING;
969 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
972 return(s->method->ssl_write(s,buf,num));
975 int SSL_shutdown(SSL *s)
977 /* Note that this function behaves differently from what one might
978 * expect. Return values are 0 for no success (yet),
979 * 1 for success; but calling it once is usually not enough,
980 * even if blocking I/O is used (see ssl3_shutdown).
983 if (s->handshake_func == 0)
985 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
989 if ((s != NULL) && !SSL_in_init(s))
990 return(s->method->ssl_shutdown(s));
995 int SSL_renegotiate(SSL *s)
997 if (s->new_session == 0)
1001 return(s->method->ssl_renegotiate(s));
1004 int SSL_renegotiate_pending(SSL *s)
1006 /* becomes true when negotiation is requested;
1007 * false again once a handshake has finished */
1008 return (s->new_session != 0);
1011 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1017 case SSL_CTRL_GET_READ_AHEAD:
1018 return(s->read_ahead);
1019 case SSL_CTRL_SET_READ_AHEAD:
1024 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1025 s->msg_callback_arg = parg;
1028 case SSL_CTRL_OPTIONS:
1029 return(s->options|=larg);
1031 return(s->mode|=larg);
1032 case SSL_CTRL_GET_MAX_CERT_LIST:
1033 return(s->max_cert_list);
1034 case SSL_CTRL_SET_MAX_CERT_LIST:
1036 s->max_cert_list=larg;
1038 case SSL_CTRL_SET_MTU:
1039 if (SSL_version(s) == DTLS1_VERSION)
1045 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1046 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1048 s->max_send_fragment = larg;
1051 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1055 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1059 case SSL_CTRL_SET_MSG_CALLBACK:
1060 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1064 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1068 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1070 return ctx->sessions;
1073 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1079 case SSL_CTRL_GET_READ_AHEAD:
1080 return(ctx->read_ahead);
1081 case SSL_CTRL_SET_READ_AHEAD:
1083 ctx->read_ahead=larg;
1086 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1087 ctx->msg_callback_arg = parg;
1090 case SSL_CTRL_GET_MAX_CERT_LIST:
1091 return(ctx->max_cert_list);
1092 case SSL_CTRL_SET_MAX_CERT_LIST:
1093 l=ctx->max_cert_list;
1094 ctx->max_cert_list=larg;
1097 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1098 l=ctx->session_cache_size;
1099 ctx->session_cache_size=larg;
1101 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1102 return(ctx->session_cache_size);
1103 case SSL_CTRL_SET_SESS_CACHE_MODE:
1104 l=ctx->session_cache_mode;
1105 ctx->session_cache_mode=larg;
1107 case SSL_CTRL_GET_SESS_CACHE_MODE:
1108 return(ctx->session_cache_mode);
1110 case SSL_CTRL_SESS_NUMBER:
1111 return(lh_SSL_SESSION_num_items(ctx->sessions));
1112 case SSL_CTRL_SESS_CONNECT:
1113 return(ctx->stats.sess_connect);
1114 case SSL_CTRL_SESS_CONNECT_GOOD:
1115 return(ctx->stats.sess_connect_good);
1116 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1117 return(ctx->stats.sess_connect_renegotiate);
1118 case SSL_CTRL_SESS_ACCEPT:
1119 return(ctx->stats.sess_accept);
1120 case SSL_CTRL_SESS_ACCEPT_GOOD:
1121 return(ctx->stats.sess_accept_good);
1122 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1123 return(ctx->stats.sess_accept_renegotiate);
1124 case SSL_CTRL_SESS_HIT:
1125 return(ctx->stats.sess_hit);
1126 case SSL_CTRL_SESS_CB_HIT:
1127 return(ctx->stats.sess_cb_hit);
1128 case SSL_CTRL_SESS_MISSES:
1129 return(ctx->stats.sess_miss);
1130 case SSL_CTRL_SESS_TIMEOUTS:
1131 return(ctx->stats.sess_timeout);
1132 case SSL_CTRL_SESS_CACHE_FULL:
1133 return(ctx->stats.sess_cache_full);
1134 case SSL_CTRL_OPTIONS:
1135 return(ctx->options|=larg);
1137 return(ctx->mode|=larg);
1138 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1139 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1141 ctx->max_send_fragment = larg;
1144 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1148 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1152 case SSL_CTRL_SET_MSG_CALLBACK:
1153 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1157 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1161 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1169 return((l > 0)?1:-1);
1172 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1173 const SSL_CIPHER * const *bp)
1177 l=(*ap)->id-(*bp)->id;
1181 return((l > 0)?1:-1);
1184 /** return a STACK of the ciphers available for the SSL and in order of
1186 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1190 if (s->cipher_list != NULL)
1192 return(s->cipher_list);
1194 else if ((s->ctx != NULL) &&
1195 (s->ctx->cipher_list != NULL))
1197 return(s->ctx->cipher_list);
1203 /** return a STACK of the ciphers available for the SSL and in order of
1205 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1209 if (s->cipher_list_by_id != NULL)
1211 return(s->cipher_list_by_id);
1213 else if ((s->ctx != NULL) &&
1214 (s->ctx->cipher_list_by_id != NULL))
1216 return(s->ctx->cipher_list_by_id);
1222 /** The old interface to get the same thing as SSL_get_ciphers() */
1223 const char *SSL_get_cipher_list(const SSL *s,int n)
1226 STACK_OF(SSL_CIPHER) *sk;
1228 if (s == NULL) return(NULL);
1229 sk=SSL_get_ciphers(s);
1230 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1232 c=sk_SSL_CIPHER_value(sk,n);
1233 if (c == NULL) return(NULL);
1237 /** specify the ciphers to be used by default by the SSL_CTX */
1238 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1240 STACK_OF(SSL_CIPHER) *sk;
1242 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1243 &ctx->cipher_list_by_id,str);
1244 /* ssl_create_cipher_list may return an empty stack if it
1245 * was unable to find a cipher matching the given rule string
1246 * (for example if the rule string specifies a cipher which
1247 * has been disabled). This is not an error as far as
1248 * ssl_create_cipher_list is concerned, and hence
1249 * ctx->cipher_list and ctx->cipher_list_by_id has been
1253 else if (sk_SSL_CIPHER_num(sk) == 0)
1255 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1261 /** specify the ciphers to be used by the SSL */
1262 int SSL_set_cipher_list(SSL *s,const char *str)
1264 STACK_OF(SSL_CIPHER) *sk;
1266 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1267 &s->cipher_list_by_id,str);
1268 /* see comment in SSL_CTX_set_cipher_list */
1271 else if (sk_SSL_CIPHER_num(sk) == 0)
1273 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1279 /* works well for SSLv2, not so good for SSLv3 */
1280 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1283 STACK_OF(SSL_CIPHER) *sk;
1287 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1292 sk=s->session->ciphers;
1293 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1297 c=sk_SSL_CIPHER_value(sk,i);
1315 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1316 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1321 #ifndef OPENSSL_NO_KRB5
1322 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1323 #endif /* OPENSSL_NO_KRB5 */
1325 if (sk == NULL) return(0);
1328 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1330 c=sk_SSL_CIPHER_value(sk,i);
1331 #ifndef OPENSSL_NO_KRB5
1332 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1335 #endif /* OPENSSL_NO_KRB5 */
1336 #ifndef OPENSSL_NO_PSK
1337 /* with PSK there must be client callback set */
1338 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1339 s->psk_client_callback == NULL)
1341 #endif /* OPENSSL_NO_PSK */
1342 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1348 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1349 STACK_OF(SSL_CIPHER) **skp)
1351 const SSL_CIPHER *c;
1352 STACK_OF(SSL_CIPHER) *sk;
1355 n=ssl_put_cipher_by_char(s,NULL,NULL);
1358 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1361 if ((skp == NULL) || (*skp == NULL))
1362 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1366 sk_SSL_CIPHER_zero(sk);
1369 for (i=0; i<num; i+=n)
1371 c=ssl_get_cipher_by_char(s,p);
1375 if (!sk_SSL_CIPHER_push(sk,c))
1377 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1387 if ((skp == NULL) || (*skp == NULL))
1388 sk_SSL_CIPHER_free(sk);
1393 #ifndef OPENSSL_NO_TLSEXT
1394 /** return a servername extension value if provided in Client Hello, or NULL.
1395 * So far, only host_name types are defined (RFC 3546).
1398 const char *SSL_get_servername(const SSL *s, const int type)
1400 if (type != TLSEXT_NAMETYPE_host_name)
1403 return s->session && !s->tlsext_hostname ?
1404 s->session->tlsext_hostname :
1408 int SSL_get_servername_type(const SSL *s)
1410 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1411 return TLSEXT_NAMETYPE_host_name;
1416 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1421 ((unsigned int) a->session_id[0] )|
1422 ((unsigned int) a->session_id[1]<< 8L)|
1423 ((unsigned long)a->session_id[2]<<16L)|
1424 ((unsigned long)a->session_id[3]<<24L);
1428 /* NB: If this function (or indeed the hash function which uses a sort of
1429 * coarser function than this one) is changed, ensure
1430 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1431 * able to construct an SSL_SESSION that will collide with any existing session
1432 * with a matching session ID. */
1433 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1435 if (a->ssl_version != b->ssl_version)
1437 if (a->session_id_length != b->session_id_length)
1439 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1442 /* These wrapper functions should remain rather than redeclaring
1443 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1444 * variable. The reason is that the functions aren't static, they're exposed via
1446 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1447 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1449 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1455 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1459 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1461 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1464 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1468 memset(ret,0,sizeof(SSL_CTX));
1472 ret->cert_store=NULL;
1473 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1474 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1475 ret->session_cache_head=NULL;
1476 ret->session_cache_tail=NULL;
1478 /* We take the system default */
1479 ret->session_timeout=meth->get_timeout();
1481 ret->new_session_cb=0;
1482 ret->remove_session_cb=0;
1483 ret->get_session_cb=0;
1484 ret->generate_session_id=0;
1486 memset((char *)&ret->stats,0,sizeof(ret->stats));
1489 ret->quiet_shutdown=0;
1491 /* ret->cipher=NULL;*/
1492 /* ret->s2->challenge=NULL;
1493 ret->master_key=NULL;
1495 ret->s2->conn_id=NULL; */
1497 ret->info_callback=NULL;
1499 ret->app_verify_callback=0;
1500 ret->app_verify_arg=NULL;
1502 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1504 ret->msg_callback=0;
1505 ret->msg_callback_arg=NULL;
1506 ret->verify_mode=SSL_VERIFY_NONE;
1508 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1510 ret->sid_ctx_length=0;
1511 ret->default_verify_callback=NULL;
1512 if ((ret->cert=ssl_cert_new()) == NULL)
1515 ret->default_passwd_callback=0;
1516 ret->default_passwd_callback_userdata=NULL;
1517 ret->client_cert_cb=0;
1518 ret->app_gen_cookie_cb=0;
1519 ret->app_verify_cookie_cb=0;
1521 ret->sessions=lh_SSL_SESSION_new();
1522 if (ret->sessions == NULL) goto err;
1523 ret->cert_store=X509_STORE_new();
1524 if (ret->cert_store == NULL) goto err;
1526 ssl_create_cipher_list(ret->method,
1527 &ret->cipher_list,&ret->cipher_list_by_id,
1528 SSL_DEFAULT_CIPHER_LIST);
1529 if (ret->cipher_list == NULL
1530 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1532 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1536 ret->param = X509_VERIFY_PARAM_new();
1540 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1542 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1545 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1547 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1550 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1552 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1556 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1559 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1561 ret->extra_certs=NULL;
1562 ret->comp_methods=SSL_COMP_get_compression_methods();
1564 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1566 #ifndef OPENSSL_NO_TLSEXT
1567 ret->tlsext_servername_callback = 0;
1568 ret->tlsext_servername_arg = NULL;
1569 /* Setup RFC4507 ticket keys */
1570 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1571 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1572 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1573 ret->options |= SSL_OP_NO_TICKET;
1575 ret->tlsext_status_cb = 0;
1576 ret->tlsext_status_arg = NULL;
1579 #ifndef OPENSSL_NO_PSK
1580 ret->psk_identity_hint=NULL;
1581 ret->psk_client_callback=NULL;
1582 ret->psk_server_callback=NULL;
1584 #ifndef OPENSSL_NO_BUF_FREELISTS
1585 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1586 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1587 if (!ret->rbuf_freelist)
1589 ret->rbuf_freelist->chunklen = 0;
1590 ret->rbuf_freelist->len = 0;
1591 ret->rbuf_freelist->head = NULL;
1592 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1593 if (!ret->wbuf_freelist)
1595 OPENSSL_free(ret->rbuf_freelist);
1598 ret->wbuf_freelist->chunklen = 0;
1599 ret->wbuf_freelist->len = 0;
1600 ret->wbuf_freelist->head = NULL;
1602 #ifndef OPENSSL_NO_ENGINE
1603 ret->client_cert_engine = NULL;
1604 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1605 #define eng_strx(x) #x
1606 #define eng_str(x) eng_strx(x)
1607 /* Use specific client engine automatically... ignore errors */
1610 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1614 ENGINE_load_builtin_engines();
1615 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1617 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1625 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1627 if (ret != NULL) SSL_CTX_free(ret);
1632 static void SSL_COMP_free(SSL_COMP *comp)
1633 { OPENSSL_free(comp); }
1636 #ifndef OPENSSL_NO_BUF_FREELISTS
1638 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1640 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1641 for (ent = list->head; ent; ent = next)
1650 void SSL_CTX_free(SSL_CTX *a)
1654 if (a == NULL) return;
1656 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1658 REF_PRINT("SSL_CTX",a);
1664 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1670 X509_VERIFY_PARAM_free(a->param);
1673 * Free internal session cache. However: the remove_cb() may reference
1674 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1675 * after the sessions were flushed.
1676 * As the ex_data handling routines might also touch the session cache,
1677 * the most secure solution seems to be: empty (flush) the cache, then
1678 * free ex_data, then finally free the cache.
1679 * (See ticket [openssl.org #212].)
1681 if (a->sessions != NULL)
1682 SSL_CTX_flush_sessions(a,0);
1684 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1686 if (a->sessions != NULL)
1687 lh_SSL_SESSION_free(a->sessions);
1689 if (a->cert_store != NULL)
1690 X509_STORE_free(a->cert_store);
1691 if (a->cipher_list != NULL)
1692 sk_SSL_CIPHER_free(a->cipher_list);
1693 if (a->cipher_list_by_id != NULL)
1694 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1695 if (a->cert != NULL)
1696 ssl_cert_free(a->cert);
1697 if (a->client_CA != NULL)
1698 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1699 if (a->extra_certs != NULL)
1700 sk_X509_pop_free(a->extra_certs,X509_free);
1701 #if 0 /* This should never be done, since it removes a global database */
1702 if (a->comp_methods != NULL)
1703 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1705 a->comp_methods = NULL;
1708 #ifndef OPENSSL_NO_PSK
1709 if (a->psk_identity_hint)
1710 OPENSSL_free(a->psk_identity_hint);
1712 #ifndef OPENSSL_NO_ENGINE
1713 if (a->client_cert_engine)
1714 ENGINE_finish(a->client_cert_engine);
1717 #ifndef OPENSSL_NO_BUF_FREELISTS
1718 if (a->wbuf_freelist)
1719 ssl_buf_freelist_free(a->wbuf_freelist);
1720 if (a->rbuf_freelist)
1721 ssl_buf_freelist_free(a->rbuf_freelist);
1727 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1729 ctx->default_passwd_callback=cb;
1732 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1734 ctx->default_passwd_callback_userdata=u;
1737 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1739 ctx->app_verify_callback=cb;
1740 ctx->app_verify_arg=arg;
1743 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1745 ctx->verify_mode=mode;
1746 ctx->default_verify_callback=cb;
1749 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1751 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1754 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
1757 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1758 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1759 int rsa_tmp_export,dh_tmp_export,kl;
1760 unsigned long mask_k,mask_a,emask_k,emask_a;
1761 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1762 #ifndef OPENSSL_NO_ECDH
1766 EVP_PKEY *ecc_pkey = NULL;
1767 int signature_nid = 0;
1769 if (c == NULL) return;
1771 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1773 #ifndef OPENSSL_NO_RSA
1774 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1775 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1776 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1778 rsa_tmp=rsa_tmp_export=0;
1780 #ifndef OPENSSL_NO_DH
1781 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1782 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1783 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1785 dh_tmp=dh_tmp_export=0;
1788 #ifndef OPENSSL_NO_ECDH
1789 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1791 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1792 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1793 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1794 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1795 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1796 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1797 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1798 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1799 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1800 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1801 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1802 /* FIX THIS EAY EAY EAY */
1803 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1804 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1805 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1806 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1815 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1816 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
1817 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1820 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1821 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1822 mask_k |= SSL_kGOST;
1823 mask_a |= SSL_aGOST01;
1825 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
1826 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1827 mask_k |= SSL_kGOST;
1828 mask_a |= SSL_aGOST94;
1831 if (rsa_enc || (rsa_tmp && rsa_sign))
1833 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1837 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1838 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1839 (rsa_enc || rsa_sign || dsa_sign))
1841 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1842 (rsa_enc || rsa_sign || dsa_sign))
1852 if (dh_rsa) mask_k|=SSL_kDHr;
1853 if (dh_rsa_export) emask_k|=SSL_kDHr;
1855 if (dh_dsa) mask_k|=SSL_kDHd;
1856 if (dh_dsa_export) emask_k|=SSL_kDHd;
1858 if (rsa_enc || rsa_sign)
1873 #ifndef OPENSSL_NO_KRB5
1880 /* An ECC certificate may be usable for ECDH and/or
1881 * ECDSA cipher suites depending on the key usage extension.
1885 /* This call populates extension flags (ex_flags) */
1886 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1887 X509_check_purpose(x, -1, 0);
1888 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1889 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1890 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1891 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1892 ecc_pkey = X509_get_pubkey(x);
1893 ecc_pkey_size = (ecc_pkey != NULL) ?
1894 EVP_PKEY_bits(ecc_pkey) : 0;
1895 EVP_PKEY_free(ecc_pkey);
1896 if ((x->sig_alg) && (x->sig_alg->algorithm))
1897 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1898 #ifndef OPENSSL_NO_ECDH
1901 const char *sig = OBJ_nid2ln(signature_nid);
1908 if (strstr(sig, "WithRSA"))
1912 if (ecc_pkey_size <= 163)
1914 emask_k|=SSL_kECDHr;
1919 if (signature_nid == NID_ecdsa_with_SHA1)
1923 if (ecc_pkey_size <= 163)
1925 emask_k|=SSL_kECDHe;
1931 #ifndef OPENSSL_NO_ECDSA
1935 emask_a|=SSL_aECDSA;
1940 #ifndef OPENSSL_NO_ECDH
1944 emask_k|=SSL_kEECDH;
1948 #ifndef OPENSSL_NO_PSK
1951 emask_k |= SSL_kPSK;
1952 emask_a |= SSL_aPSK;
1957 c->export_mask_k=emask_k;
1958 c->export_mask_a=emask_a;
1962 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1963 #define ku_reject(x, usage) \
1964 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1966 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
1968 unsigned long alg_k, alg_a;
1969 EVP_PKEY *pkey = NULL;
1971 int signature_nid = 0;
1973 alg_k = cs->algorithm_mkey;
1974 alg_a = cs->algorithm_auth;
1976 if (SSL_C_IS_EXPORT(cs))
1978 /* ECDH key length in export ciphers must be <= 163 bits */
1979 pkey = X509_get_pubkey(x);
1980 if (pkey == NULL) return 0;
1981 keysize = EVP_PKEY_bits(pkey);
1982 EVP_PKEY_free(pkey);
1983 if (keysize > 163) return 0;
1986 /* This call populates the ex_flags field correctly */
1987 X509_check_purpose(x, -1, 0);
1988 if ((x->sig_alg) && (x->sig_alg->algorithm))
1989 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1990 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
1992 /* key usage, if present, must allow key agreement */
1993 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1995 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
1998 if (alg_k & SSL_kECDHe)
2000 /* signature alg must be ECDSA */
2001 if (signature_nid != NID_ecdsa_with_SHA1)
2003 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2007 if (alg_k & SSL_kECDHr)
2009 /* signature alg must be RSA */
2011 const char *sig = OBJ_nid2ln(signature_nid);
2017 if (strstr(sig, "WithRSA") == NULL)
2019 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2024 if (alg_a & SSL_aECDSA)
2026 /* key usage, if present, must allow signing */
2027 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2029 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2034 return 1; /* all checks are ok */
2037 /* THIS NEEDS CLEANING UP */
2038 X509 *ssl_get_server_send_cert(SSL *s)
2040 unsigned long alg_k,alg_a,mask_k,mask_a;
2045 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2046 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
2049 mask_k = c->export_mask_k;
2050 mask_a = c->export_mask_a;
2058 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2059 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2061 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2063 /* we don't need to look at SSL_kEECDH
2064 * since no certificate is needed for
2065 * anon ECDH and for authenticated
2066 * EECDH, the check for the auth
2067 * algorithm will set i correctly
2068 * NOTE: For ECDH-RSA, we need an ECC
2069 * not an RSA cert but for EECDH-RSA
2070 * we need an RSA cert. Placing the
2071 * checks for SSL_kECDH before RSA
2072 * checks ensures the correct cert is chosen.
2076 else if (alg_a & SSL_aECDSA)
2080 else if (alg_k & SSL_kDHr)
2082 else if (alg_k & SSL_kDHd)
2084 else if (alg_a & SSL_aDSS)
2085 i=SSL_PKEY_DSA_SIGN;
2086 else if (alg_a & SSL_aRSA)
2088 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2089 i=SSL_PKEY_RSA_SIGN;
2093 else if (alg_a & SSL_aKRB5)
2095 /* VRS something else here? */
2098 else if (alg_a & SSL_aGOST94)
2100 else if (alg_a & SSL_aGOST01)
2102 else /* if (alg_a & SSL_aNULL) */
2104 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2107 if (c->pkeys[i].x509 == NULL) return(NULL);
2109 return(c->pkeys[i].x509);
2112 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher)
2114 unsigned long alg_a;
2117 alg_a = cipher->algorithm_auth;
2120 if ((alg_a & SSL_aDSS) &&
2121 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2122 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2123 else if (alg_a & SSL_aRSA)
2125 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2126 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2127 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2128 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2132 else if ((alg_a & SSL_aECDSA) &&
2133 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2134 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2135 else /* if (alg_a & SSL_aNULL) */
2137 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2142 void ssl_update_cache(SSL *s,int mode)
2146 /* If the session_id_length is 0, we are not supposed to cache it,
2147 * and it would be rather hard to do anyway :-) */
2148 if (s->session->session_id_length == 0) return;
2150 i=s->session_ctx->session_cache_mode;
2151 if ((i & mode) && (!s->hit)
2152 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2153 || SSL_CTX_add_session(s->session_ctx,s->session))
2154 && (s->session_ctx->new_session_cb != NULL))
2156 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2157 if (!s->session_ctx->new_session_cb(s,s->session))
2158 SSL_SESSION_free(s->session);
2161 /* auto flush every 255 connections */
2162 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2163 ((i & mode) == mode))
2165 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2166 ?s->session_ctx->stats.sess_connect_good
2167 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2169 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2174 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2179 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2184 if (s->method != meth)
2186 if (s->handshake_func != NULL)
2187 conn=(s->handshake_func == s->method->ssl_connect);
2189 if (s->method->version == meth->version)
2193 s->method->ssl_free(s);
2195 ret=s->method->ssl_new(s);
2199 s->handshake_func=meth->ssl_connect;
2201 s->handshake_func=meth->ssl_accept;
2206 int SSL_get_error(const SSL *s,int i)
2212 if (i > 0) return(SSL_ERROR_NONE);
2214 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2215 * etc, where we do encode the error */
2216 if ((l=ERR_peek_error()) != 0)
2218 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2219 return(SSL_ERROR_SYSCALL);
2221 return(SSL_ERROR_SSL);
2224 if ((i < 0) && SSL_want_read(s))
2226 bio=SSL_get_rbio(s);
2227 if (BIO_should_read(bio))
2228 return(SSL_ERROR_WANT_READ);
2229 else if (BIO_should_write(bio))
2230 /* This one doesn't make too much sense ... We never try
2231 * to write to the rbio, and an application program where
2232 * rbio and wbio are separate couldn't even know what it
2234 * However if we ever set s->rwstate incorrectly
2235 * (so that we have SSL_want_read(s) instead of
2236 * SSL_want_write(s)) and rbio and wbio *are* the same,
2237 * this test works around that bug; so it might be safer
2239 return(SSL_ERROR_WANT_WRITE);
2240 else if (BIO_should_io_special(bio))
2242 reason=BIO_get_retry_reason(bio);
2243 if (reason == BIO_RR_CONNECT)
2244 return(SSL_ERROR_WANT_CONNECT);
2245 else if (reason == BIO_RR_ACCEPT)
2246 return(SSL_ERROR_WANT_ACCEPT);
2248 return(SSL_ERROR_SYSCALL); /* unknown */
2252 if ((i < 0) && SSL_want_write(s))
2254 bio=SSL_get_wbio(s);
2255 if (BIO_should_write(bio))
2256 return(SSL_ERROR_WANT_WRITE);
2257 else if (BIO_should_read(bio))
2258 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2259 return(SSL_ERROR_WANT_READ);
2260 else if (BIO_should_io_special(bio))
2262 reason=BIO_get_retry_reason(bio);
2263 if (reason == BIO_RR_CONNECT)
2264 return(SSL_ERROR_WANT_CONNECT);
2265 else if (reason == BIO_RR_ACCEPT)
2266 return(SSL_ERROR_WANT_ACCEPT);
2268 return(SSL_ERROR_SYSCALL);
2271 if ((i < 0) && SSL_want_x509_lookup(s))
2273 return(SSL_ERROR_WANT_X509_LOOKUP);
2278 if (s->version == SSL2_VERSION)
2280 /* assume it is the socket being closed */
2281 return(SSL_ERROR_ZERO_RETURN);
2285 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2286 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2287 return(SSL_ERROR_ZERO_RETURN);
2290 return(SSL_ERROR_SYSCALL);
2293 int SSL_do_handshake(SSL *s)
2297 if (s->handshake_func == NULL)
2299 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2303 s->method->ssl_renegotiate_check(s);
2305 if (SSL_in_init(s) || SSL_in_before(s))
2307 ret=s->handshake_func(s);
2312 /* For the next 2 functions, SSL_clear() sets shutdown and so
2313 * one of these calls will reset it */
2314 void SSL_set_accept_state(SSL *s)
2318 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2319 s->handshake_func=s->method->ssl_accept;
2320 /* clear the current cipher */
2321 ssl_clear_cipher_ctx(s);
2322 ssl_clear_hash_ctx(&s->read_hash);
2323 ssl_clear_hash_ctx(&s->write_hash);
2326 void SSL_set_connect_state(SSL *s)
2330 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2331 s->handshake_func=s->method->ssl_connect;
2332 /* clear the current cipher */
2333 ssl_clear_cipher_ctx(s);
2334 ssl_clear_hash_ctx(&s->read_hash);
2335 ssl_clear_hash_ctx(&s->write_hash);
2338 int ssl_undefined_function(SSL *s)
2340 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2344 int ssl_undefined_void_function(void)
2346 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2350 int ssl_undefined_const_function(const SSL *s)
2352 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2356 SSL_METHOD *ssl_bad_method(int ver)
2358 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2362 const char *SSL_get_version(const SSL *s)
2364 if (s->version == TLS1_VERSION)
2366 else if (s->version == SSL3_VERSION)
2368 else if (s->version == SSL2_VERSION)
2374 SSL *SSL_dup(SSL *s)
2376 STACK_OF(X509_NAME) *sk;
2381 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2384 ret->version = s->version;
2385 ret->type = s->type;
2386 ret->method = s->method;
2388 if (s->session != NULL)
2390 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2391 SSL_copy_session_id(ret,s);
2395 /* No session has been established yet, so we have to expect
2396 * that s->cert or ret->cert will be changed later --
2397 * they should not both point to the same object,
2398 * and thus we can't use SSL_copy_session_id. */
2400 ret->method->ssl_free(ret);
2401 ret->method = s->method;
2402 ret->method->ssl_new(ret);
2404 if (s->cert != NULL)
2406 if (ret->cert != NULL)
2408 ssl_cert_free(ret->cert);
2410 ret->cert = ssl_cert_dup(s->cert);
2411 if (ret->cert == NULL)
2415 SSL_set_session_id_context(ret,
2416 s->sid_ctx, s->sid_ctx_length);
2419 ret->options=s->options;
2421 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2422 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2423 ret->msg_callback = s->msg_callback;
2424 ret->msg_callback_arg = s->msg_callback_arg;
2425 SSL_set_verify(ret,SSL_get_verify_mode(s),
2426 SSL_get_verify_callback(s));
2427 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2428 ret->generate_session_id = s->generate_session_id;
2430 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2432 ret->debug=s->debug;
2434 /* copy app data, a little dangerous perhaps */
2435 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2438 /* setup rbio, and wbio */
2439 if (s->rbio != NULL)
2441 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2444 if (s->wbio != NULL)
2446 if (s->wbio != s->rbio)
2448 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2452 ret->wbio=ret->rbio;
2454 ret->rwstate = s->rwstate;
2455 ret->in_handshake = s->in_handshake;
2456 ret->handshake_func = s->handshake_func;
2457 ret->server = s->server;
2458 ret->new_session = s->new_session;
2459 ret->quiet_shutdown = s->quiet_shutdown;
2460 ret->shutdown=s->shutdown;
2461 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2462 ret->rstate=s->rstate;
2463 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2466 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2468 /* dup the cipher_list and cipher_list_by_id stacks */
2469 if (s->cipher_list != NULL)
2471 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2474 if (s->cipher_list_by_id != NULL)
2475 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2479 /* Dup the client_CA list */
2480 if (s->client_CA != NULL)
2482 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2484 for (i=0; i<sk_X509_NAME_num(sk); i++)
2486 xn=sk_X509_NAME_value(sk,i);
2487 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2498 if (ret != NULL) SSL_free(ret);
2504 void ssl_clear_cipher_ctx(SSL *s)
2506 if (s->enc_read_ctx != NULL)
2508 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2509 OPENSSL_free(s->enc_read_ctx);
2510 s->enc_read_ctx=NULL;
2512 if (s->enc_write_ctx != NULL)
2514 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2515 OPENSSL_free(s->enc_write_ctx);
2516 s->enc_write_ctx=NULL;
2518 #ifndef OPENSSL_NO_COMP
2519 if (s->expand != NULL)
2521 COMP_CTX_free(s->expand);
2524 if (s->compress != NULL)
2526 COMP_CTX_free(s->compress);
2532 /* Fix this function so that it takes an optional type parameter */
2533 X509 *SSL_get_certificate(const SSL *s)
2535 if (s->cert != NULL)
2536 return(s->cert->key->x509);
2541 /* Fix this function so that it takes an optional type parameter */
2542 EVP_PKEY *SSL_get_privatekey(SSL *s)
2544 if (s->cert != NULL)
2545 return(s->cert->key->privatekey);
2550 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2552 if ((s->session != NULL) && (s->session->cipher != NULL))
2553 return(s->session->cipher);
2556 #ifdef OPENSSL_NO_COMP
2557 const void *SSL_get_current_compression(SSL *s)
2561 const void *SSL_get_current_expansion(SSL *s)
2567 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2569 if (s->compress != NULL)
2570 return(s->compress->meth);
2574 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2576 if (s->expand != NULL)
2577 return(s->expand->meth);
2582 int ssl_init_wbio_buffer(SSL *s,int push)
2586 if (s->bbio == NULL)
2588 bbio=BIO_new(BIO_f_buffer());
2589 if (bbio == NULL) return(0);
2595 if (s->bbio == s->wbio)
2596 s->wbio=BIO_pop(s->wbio);
2598 (void)BIO_reset(bbio);
2599 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2600 if (!BIO_set_read_buffer_size(bbio,1))
2602 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2607 if (s->wbio != bbio)
2608 s->wbio=BIO_push(bbio,s->wbio);
2612 if (s->wbio == bbio)
2613 s->wbio=BIO_pop(bbio);
2618 void ssl_free_wbio_buffer(SSL *s)
2620 if (s->bbio == NULL) return;
2622 if (s->bbio == s->wbio)
2624 /* remove buffering */
2625 s->wbio=BIO_pop(s->wbio);
2626 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2627 assert(s->wbio != NULL);
2634 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2636 ctx->quiet_shutdown=mode;
2639 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2641 return(ctx->quiet_shutdown);
2644 void SSL_set_quiet_shutdown(SSL *s,int mode)
2646 s->quiet_shutdown=mode;
2649 int SSL_get_quiet_shutdown(const SSL *s)
2651 return(s->quiet_shutdown);
2654 void SSL_set_shutdown(SSL *s,int mode)
2659 int SSL_get_shutdown(const SSL *s)
2661 return(s->shutdown);
2664 int SSL_version(const SSL *s)
2669 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2674 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2676 if (ssl->ctx == ctx)
2678 #ifndef OPENSSL_NO_TLSEXT
2680 ctx = ssl->initial_ctx;
2682 if (ssl->cert != NULL)
2683 ssl_cert_free(ssl->cert);
2684 ssl->cert = ssl_cert_dup(ctx->cert);
2685 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2686 if (ssl->ctx != NULL)
2687 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2692 #ifndef OPENSSL_NO_STDIO
2693 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2695 return(X509_STORE_set_default_paths(ctx->cert_store));
2698 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2701 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2705 void SSL_set_info_callback(SSL *ssl,
2706 void (*cb)(const SSL *ssl,int type,int val))
2708 ssl->info_callback=cb;
2711 /* One compiler (Diab DCC) doesn't like argument names in returned
2712 function pointer. */
2713 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2715 return ssl->info_callback;
2718 int SSL_state(const SSL *ssl)
2723 void SSL_set_verify_result(SSL *ssl,long arg)
2725 ssl->verify_result=arg;
2728 long SSL_get_verify_result(const SSL *ssl)
2730 return(ssl->verify_result);
2733 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2734 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2736 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2737 new_func, dup_func, free_func);
2740 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2742 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2745 void *SSL_get_ex_data(const SSL *s,int idx)
2747 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2750 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2751 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2753 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2754 new_func, dup_func, free_func);
2757 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2759 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2762 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2764 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2772 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2774 return(ctx->cert_store);
2777 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2779 if (ctx->cert_store != NULL)
2780 X509_STORE_free(ctx->cert_store);
2781 ctx->cert_store=store;
2784 int SSL_want(const SSL *s)
2790 * \brief Set the callback for generating temporary RSA keys.
2791 * \param ctx the SSL context.
2792 * \param cb the callback
2795 #ifndef OPENSSL_NO_RSA
2796 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2800 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2803 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2807 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2813 * \brief The RSA temporary key callback function.
2814 * \param ssl the SSL session.
2815 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2816 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2817 * of the required key in bits.
2818 * \return the temporary RSA key.
2819 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2822 RSA *cb(SSL *ssl,int is_export,int keylength)
2827 * \brief Set the callback for generating temporary DH keys.
2828 * \param ctx the SSL context.
2829 * \param dh the callback
2832 #ifndef OPENSSL_NO_DH
2833 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2836 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2839 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2842 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2846 #ifndef OPENSSL_NO_ECDH
2847 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2850 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2853 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2856 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2860 #ifndef OPENSSL_NO_PSK
2861 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2863 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2865 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2868 if (ctx->psk_identity_hint != NULL)
2869 OPENSSL_free(ctx->psk_identity_hint);
2870 if (identity_hint != NULL)
2872 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2873 if (ctx->psk_identity_hint == NULL)
2877 ctx->psk_identity_hint = NULL;
2881 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2886 if (s->session == NULL)
2887 return 1; /* session not created yet, ignored */
2889 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2891 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2894 if (s->session->psk_identity_hint != NULL)
2895 OPENSSL_free(s->session->psk_identity_hint);
2896 if (identity_hint != NULL)
2898 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2899 if (s->session->psk_identity_hint == NULL)
2903 s->session->psk_identity_hint = NULL;
2907 const char *SSL_get_psk_identity_hint(const SSL *s)
2909 if (s == NULL || s->session == NULL)
2911 return(s->session->psk_identity_hint);
2914 const char *SSL_get_psk_identity(const SSL *s)
2916 if (s == NULL || s->session == NULL)
2918 return(s->session->psk_identity);
2921 void SSL_set_psk_client_callback(SSL *s,
2922 unsigned int (*cb)(SSL *ssl, const char *hint,
2923 char *identity, unsigned int max_identity_len, unsigned char *psk,
2924 unsigned int max_psk_len))
2926 s->psk_client_callback = cb;
2929 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
2930 unsigned int (*cb)(SSL *ssl, const char *hint,
2931 char *identity, unsigned int max_identity_len, unsigned char *psk,
2932 unsigned int max_psk_len))
2934 ctx->psk_client_callback = cb;
2937 void SSL_set_psk_server_callback(SSL *s,
2938 unsigned int (*cb)(SSL *ssl, const char *identity,
2939 unsigned char *psk, unsigned int max_psk_len))
2941 s->psk_server_callback = cb;
2944 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
2945 unsigned int (*cb)(SSL *ssl, const char *identity,
2946 unsigned char *psk, unsigned int max_psk_len))
2948 ctx->psk_server_callback = cb;
2952 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))
2954 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2956 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))
2958 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2961 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
2962 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
2963 * any. If EVP_MD pointer is passed, initializes ctx with this md
2964 * Returns newly allocated ctx;
2967 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
2969 ssl_clear_hash_ctx(hash);
2970 *hash = EVP_MD_CTX_create();
2971 if (md) EVP_DigestInit_ex(*hash,md,NULL);
2974 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
2977 if (*hash) EVP_MD_CTX_destroy(*hash);
2981 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2982 #include "../crypto/bio/bss_file.c"
2985 IMPLEMENT_STACK_OF(SSL_CIPHER)
2986 IMPLEMENT_STACK_OF(SSL_COMP)