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,
180 (int (*)(SSL *, unsigned char *, size_t, const char *,
181 size_t, const unsigned char *, size_t,
182 int use_context)) ssl_undefined_function,
185 int SSL_clear(SSL *s)
188 if (s->method == NULL)
190 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
194 if (ssl_clear_bad_session(s))
196 SSL_SESSION_free(s->session);
204 #if 0 /* Disabled since version 1.10 of this file (early return not
205 * needed because SSL_clear is not called when doing renegotiation) */
206 /* This is set if we are doing dynamic renegotiation so keep
207 * the old cipher. It is sort of a SSL_clear_lite :-) */
208 if (s->renegotiate) return(1);
212 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
219 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
221 s->version=s->method->version;
222 s->client_version=s->version;
223 s->rwstate=SSL_NOTHING;
224 s->rstate=SSL_ST_READ_HEADER;
226 s->read_ahead=s->ctx->read_ahead;
229 if (s->init_buf != NULL)
231 BUF_MEM_free(s->init_buf);
235 ssl_clear_cipher_ctx(s);
236 ssl_clear_hash_ctx(&s->read_hash);
237 ssl_clear_hash_ctx(&s->write_hash);
242 /* Check to see if we were changed into a different method, if
243 * so, revert back if we are not doing session-id reuse. */
244 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
246 s->method->ssl_free(s);
247 s->method=s->ctx->method;
248 if (!s->method->ssl_new(s))
253 s->method->ssl_clear(s);
257 /** Used to change an SSL_CTXs default SSL method type */
258 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
260 STACK_OF(SSL_CIPHER) *sk;
264 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
265 &(ctx->cipher_list_by_id),
266 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
267 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
269 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
275 SSL *SSL_new(SSL_CTX *ctx)
281 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
284 if (ctx->method == NULL)
286 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
290 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
291 if (s == NULL) goto err;
292 memset(s,0,sizeof(SSL));
294 #ifndef OPENSSL_NO_KRB5
295 s->kssl_ctx = kssl_ctx_new();
296 #endif /* OPENSSL_NO_KRB5 */
298 s->options=ctx->options;
300 s->max_cert_list=ctx->max_cert_list;
302 if (ctx->cert != NULL)
304 /* Earlier library versions used to copy the pointer to
305 * the CERT, not its contents; only when setting new
306 * parameters for the per-SSL copy, ssl_cert_new would be
307 * called (and the direct reference to the per-SSL_CTX
308 * settings would be lost, but those still were indirectly
309 * accessed for various purposes, and for that reason they
310 * used to be known as s->ctx->default_cert).
311 * Now we don't look at the SSL_CTX's CERT after having
312 * duplicated it once. */
314 s->cert = ssl_cert_dup(ctx->cert);
319 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
321 s->read_ahead=ctx->read_ahead;
322 s->msg_callback=ctx->msg_callback;
323 s->msg_callback_arg=ctx->msg_callback_arg;
324 s->verify_mode=ctx->verify_mode;
325 s->not_resumable_session_cb=ctx->not_resumable_session_cb;
327 s->verify_depth=ctx->verify_depth;
329 s->sid_ctx_length=ctx->sid_ctx_length;
330 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
331 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
332 s->verify_callback=ctx->default_verify_callback;
333 s->generate_session_id=ctx->generate_session_id;
335 s->param = X509_VERIFY_PARAM_new();
338 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
340 s->purpose = ctx->purpose;
341 s->trust = ctx->trust;
343 s->quiet_shutdown=ctx->quiet_shutdown;
344 s->max_send_fragment = ctx->max_send_fragment;
346 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
348 #ifndef OPENSSL_NO_TLSEXT
349 s->tlsext_debug_cb = 0;
350 s->tlsext_debug_arg = NULL;
351 s->tlsext_ticket_expected = 0;
352 s->tlsext_status_type = -1;
353 s->tlsext_status_expected = 0;
354 s->tlsext_ocsp_ids = NULL;
355 s->tlsext_ocsp_exts = NULL;
356 s->tlsext_ocsp_resp = NULL;
357 s->tlsext_ocsp_resplen = -1;
358 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
360 #ifndef OPENSSL_NO_EC
361 if (ctx->tlsext_ecpointformatlist)
363 s->tlsext_ecpointformatlist =
364 BUF_memdup(ctx->tlsext_ecpointformatlist,
365 ctx->tlsext_ecpointformatlist_length);
366 if (!s->tlsext_ecpointformatlist)
368 s->tlsext_ecpointformatlist_length =
369 ctx->tlsext_ecpointformatlist_length;
371 if (ctx->tlsext_ellipticcurvelist)
373 s->tlsext_ellipticcurvelist =
374 BUF_memdup(ctx->tlsext_ellipticcurvelist,
375 ctx->tlsext_ellipticcurvelist_length);
376 if (!s->tlsext_ellipticcurvelist)
378 s->tlsext_ellipticcurvelist_length =
379 ctx->tlsext_ellipticcurvelist_length;
382 # ifndef OPENSSL_NO_NEXTPROTONEG
383 s->next_proto_negotiated = NULL;
387 s->verify_result=X509_V_OK;
389 s->method=ctx->method;
391 if (!s->method->ssl_new(s))
395 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
399 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
401 #ifndef OPENSSL_NO_PSK
402 s->psk_client_callback=ctx->psk_client_callback;
403 s->psk_server_callback=ctx->psk_server_callback;
411 ssl_cert_free(s->cert);
413 SSL_CTX_free(s->ctx); /* decrement reference count */
416 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
420 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
421 unsigned int sid_ctx_len)
423 if(sid_ctx_len > sizeof ctx->sid_ctx)
425 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
428 ctx->sid_ctx_length=sid_ctx_len;
429 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
434 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
435 unsigned int sid_ctx_len)
437 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
439 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
442 ssl->sid_ctx_length=sid_ctx_len;
443 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
448 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
450 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
451 ctx->generate_session_id = cb;
452 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
456 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
458 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
459 ssl->generate_session_id = cb;
460 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
464 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
467 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
468 * we can "construct" a session to give us the desired check - ie. to
469 * find if there's a session in the hash table that would conflict with
470 * any new session built out of this id/id_len and the ssl_version in
471 * use by this SSL. */
474 if(id_len > sizeof r.session_id)
477 r.ssl_version = ssl->version;
478 r.session_id_length = id_len;
479 memcpy(r.session_id, id, id_len);
480 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
481 * callback is calling us to check the uniqueness of a shorter ID, it
482 * must be compared as a padded-out ID because that is what it will be
483 * converted to when the callback has finished choosing it. */
484 if((r.ssl_version == SSL2_VERSION) &&
485 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
487 memset(r.session_id + id_len, 0,
488 SSL2_SSL_SESSION_ID_LENGTH - id_len);
489 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
492 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
493 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
494 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
498 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
500 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
503 int SSL_set_purpose(SSL *s, int purpose)
505 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
508 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
510 return X509_VERIFY_PARAM_set_trust(s->param, trust);
513 int SSL_set_trust(SSL *s, int trust)
515 return X509_VERIFY_PARAM_set_trust(s->param, trust);
518 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
520 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
523 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
525 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
528 void SSL_certs_clear(SSL *s)
530 ssl_cert_clear_certs(s->cert);
533 void SSL_free(SSL *s)
540 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
548 fprintf(stderr,"SSL_free, bad reference count\n");
554 X509_VERIFY_PARAM_free(s->param);
556 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
560 /* If the buffering BIO is in place, pop it off */
561 if (s->bbio == s->wbio)
563 s->wbio=BIO_pop(s->wbio);
569 BIO_free_all(s->rbio);
570 if ((s->wbio != NULL) && (s->wbio != s->rbio))
571 BIO_free_all(s->wbio);
573 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
575 /* add extra stuff */
576 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
577 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
579 /* Make the next call work :-) */
580 if (s->session != NULL)
582 ssl_clear_bad_session(s);
583 SSL_SESSION_free(s->session);
586 ssl_clear_cipher_ctx(s);
587 ssl_clear_hash_ctx(&s->read_hash);
588 ssl_clear_hash_ctx(&s->write_hash);
590 if (s->cert != NULL) ssl_cert_free(s->cert);
591 /* Free up if allocated */
593 #ifndef OPENSSL_NO_TLSEXT
594 if (s->tlsext_hostname)
595 OPENSSL_free(s->tlsext_hostname);
596 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
597 #ifndef OPENSSL_NO_EC
598 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
599 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
600 #endif /* OPENSSL_NO_EC */
601 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
602 if (s->tlsext_ocsp_exts)
603 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
604 X509_EXTENSION_free);
605 if (s->tlsext_ocsp_ids)
606 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
607 if (s->tlsext_ocsp_resp)
608 OPENSSL_free(s->tlsext_ocsp_resp);
611 if (s->client_CA != NULL)
612 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
614 if (s->method != NULL) s->method->ssl_free(s);
616 if (s->ctx) SSL_CTX_free(s->ctx);
618 #ifndef OPENSSL_NO_KRB5
619 if (s->kssl_ctx != NULL)
620 kssl_ctx_free(s->kssl_ctx);
621 #endif /* OPENSSL_NO_KRB5 */
623 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
624 if (s->next_proto_negotiated)
625 OPENSSL_free(s->next_proto_negotiated);
628 if (s->srtp_profiles)
629 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
634 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
636 /* If the output buffering BIO is still in place, remove it
640 if (s->wbio == s->bbio)
642 s->wbio=s->wbio->next_bio;
643 s->bbio->next_bio=NULL;
646 if ((s->rbio != NULL) && (s->rbio != rbio))
647 BIO_free_all(s->rbio);
648 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
649 BIO_free_all(s->wbio);
654 BIO *SSL_get_rbio(const SSL *s)
657 BIO *SSL_get_wbio(const SSL *s)
660 int SSL_get_fd(const SSL *s)
662 return(SSL_get_rfd(s));
665 int SSL_get_rfd(const SSL *s)
671 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
677 int SSL_get_wfd(const SSL *s)
683 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
689 #ifndef OPENSSL_NO_SOCK
690 int SSL_set_fd(SSL *s,int fd)
695 bio=BIO_new(BIO_s_socket());
699 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
702 BIO_set_fd(bio,fd,BIO_NOCLOSE);
703 SSL_set_bio(s,bio,bio);
709 int SSL_set_wfd(SSL *s,int fd)
714 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
715 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
717 bio=BIO_new(BIO_s_socket());
720 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
721 BIO_set_fd(bio,fd,BIO_NOCLOSE);
722 SSL_set_bio(s,SSL_get_rbio(s),bio);
725 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
731 int SSL_set_rfd(SSL *s,int fd)
736 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
737 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
739 bio=BIO_new(BIO_s_socket());
743 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
746 BIO_set_fd(bio,fd,BIO_NOCLOSE);
747 SSL_set_bio(s,bio,SSL_get_wbio(s));
750 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
758 /* return length of latest Finished message we sent, copy to 'buf' */
759 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
765 ret = s->s3->tmp.finish_md_len;
768 memcpy(buf, s->s3->tmp.finish_md, count);
773 /* return length of latest Finished message we expected, copy to 'buf' */
774 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
780 ret = s->s3->tmp.peer_finish_md_len;
783 memcpy(buf, s->s3->tmp.peer_finish_md, count);
789 int SSL_get_verify_mode(const SSL *s)
791 return(s->verify_mode);
794 int SSL_get_verify_depth(const SSL *s)
796 return X509_VERIFY_PARAM_get_depth(s->param);
799 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
801 return(s->verify_callback);
804 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
806 return(ctx->verify_mode);
809 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
811 return X509_VERIFY_PARAM_get_depth(ctx->param);
814 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
816 return(ctx->default_verify_callback);
819 void SSL_set_verify(SSL *s,int mode,
820 int (*callback)(int ok,X509_STORE_CTX *ctx))
823 if (callback != NULL)
824 s->verify_callback=callback;
827 void SSL_set_verify_depth(SSL *s,int depth)
829 X509_VERIFY_PARAM_set_depth(s->param, depth);
832 void SSL_set_read_ahead(SSL *s,int yes)
837 int SSL_get_read_ahead(const SSL *s)
839 return(s->read_ahead);
842 int SSL_pending(const SSL *s)
844 /* SSL_pending cannot work properly if read-ahead is enabled
845 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
846 * and it is impossible to fix since SSL_pending cannot report
847 * errors that may be observed while scanning the new data.
848 * (Note that SSL_pending() is often used as a boolean value,
849 * so we'd better not return -1.)
851 return(s->method->ssl_pending(s));
854 X509 *SSL_get_peer_certificate(const SSL *s)
858 if ((s == NULL) || (s->session == NULL))
863 if (r == NULL) return(r);
865 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
870 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
874 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
877 r=s->session->sess_cert->cert_chain;
879 /* If we are a client, cert_chain includes the peer's own
880 * certificate; if we are a server, it does not. */
885 /* Now in theory, since the calling process own 't' it should be safe to
886 * modify. We need to be able to read f without being hassled */
887 void SSL_copy_session_id(SSL *t,const SSL *f)
891 /* Do we need to to SSL locking? */
892 SSL_set_session(t,SSL_get_session(f));
894 /* what if we are setup as SSLv2 but want to talk SSLv3 or
896 if (t->method != f->method)
898 t->method->ssl_free(t); /* cleanup current */
899 t->method=f->method; /* change method */
900 t->method->ssl_new(t); /* setup new */
906 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
911 if (tmp != NULL) ssl_cert_free(tmp);
912 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
915 /* Fix this so it checks all the valid key/cert options */
916 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
918 if ( (ctx == NULL) ||
919 (ctx->cert == NULL) ||
920 (ctx->cert->key->x509 == NULL))
922 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
925 if (ctx->cert->key->privatekey == NULL)
927 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
930 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
933 /* Fix this function so that it takes an optional type parameter */
934 int SSL_check_private_key(const SSL *ssl)
938 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
941 if (ssl->cert == NULL)
943 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
946 if (ssl->cert->key->x509 == NULL)
948 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
951 if (ssl->cert->key->privatekey == NULL)
953 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
956 return(X509_check_private_key(ssl->cert->key->x509,
957 ssl->cert->key->privatekey));
960 int SSL_accept(SSL *s)
962 if (s->handshake_func == 0)
963 /* Not properly initialized yet */
964 SSL_set_accept_state(s);
966 return(s->method->ssl_accept(s));
969 int SSL_connect(SSL *s)
971 if (s->handshake_func == 0)
972 /* Not properly initialized yet */
973 SSL_set_connect_state(s);
975 return(s->method->ssl_connect(s));
978 long SSL_get_default_timeout(const SSL *s)
980 return(s->method->get_timeout());
983 int SSL_read(SSL *s,void *buf,int num)
985 if (s->handshake_func == 0)
987 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
991 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
993 s->rwstate=SSL_NOTHING;
996 return(s->method->ssl_read(s,buf,num));
999 int SSL_peek(SSL *s,void *buf,int num)
1001 if (s->handshake_func == 0)
1003 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1007 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1011 return(s->method->ssl_peek(s,buf,num));
1014 int SSL_write(SSL *s,const void *buf,int num)
1016 if (s->handshake_func == 0)
1018 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1022 if (s->shutdown & SSL_SENT_SHUTDOWN)
1024 s->rwstate=SSL_NOTHING;
1025 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1028 return(s->method->ssl_write(s,buf,num));
1031 int SSL_shutdown(SSL *s)
1033 /* Note that this function behaves differently from what one might
1034 * expect. Return values are 0 for no success (yet),
1035 * 1 for success; but calling it once is usually not enough,
1036 * even if blocking I/O is used (see ssl3_shutdown).
1039 if (s->handshake_func == 0)
1041 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1045 if ((s != NULL) && !SSL_in_init(s))
1046 return(s->method->ssl_shutdown(s));
1051 int SSL_renegotiate(SSL *s)
1053 if (s->renegotiate == 0)
1058 return(s->method->ssl_renegotiate(s));
1061 int SSL_renegotiate_abbreviated(SSL *s)
1063 if (s->renegotiate == 0)
1068 return(s->method->ssl_renegotiate(s));
1071 int SSL_renegotiate_pending(SSL *s)
1073 /* becomes true when negotiation is requested;
1074 * false again once a handshake has finished */
1075 return (s->renegotiate != 0);
1078 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1084 case SSL_CTRL_GET_READ_AHEAD:
1085 return(s->read_ahead);
1086 case SSL_CTRL_SET_READ_AHEAD:
1091 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1092 s->msg_callback_arg = parg;
1095 case SSL_CTRL_OPTIONS:
1096 return(s->options|=larg);
1097 case SSL_CTRL_CLEAR_OPTIONS:
1098 return(s->options&=~larg);
1100 return(s->mode|=larg);
1101 case SSL_CTRL_CLEAR_MODE:
1102 return(s->mode &=~larg);
1103 case SSL_CTRL_GET_MAX_CERT_LIST:
1104 return(s->max_cert_list);
1105 case SSL_CTRL_SET_MAX_CERT_LIST:
1107 s->max_cert_list=larg;
1109 case SSL_CTRL_SET_MTU:
1110 #ifndef OPENSSL_NO_DTLS1
1111 if (larg < (long)dtls1_min_mtu())
1121 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1122 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1124 s->max_send_fragment = larg;
1126 case SSL_CTRL_GET_RI_SUPPORT:
1128 return s->s3->send_connection_binding;
1130 case SSL_CTRL_CERT_FLAGS:
1131 return(s->cert->cert_flags|=larg);
1132 case SSL_CTRL_CLEAR_CERT_FLAGS:
1133 return(s->cert->cert_flags &=~larg);
1135 case SSL_CTRL_GET_RAW_CIPHERLIST:
1138 if (s->cert->ciphers_raw == NULL)
1140 *(unsigned char **)parg = s->cert->ciphers_raw;
1141 return (int)s->cert->ciphers_rawlen;
1144 return ssl_put_cipher_by_char(s,NULL,NULL);
1146 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1150 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1154 case SSL_CTRL_SET_MSG_CALLBACK:
1155 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1159 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1163 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1165 return ctx->sessions;
1168 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1171 /* For some cases with ctx == NULL perform syntax checks */
1176 case SSL_CTRL_SET_CURVES_LIST:
1177 return tls1_set_curves_list(NULL, NULL, parg);
1178 case SSL_CTRL_SET_SIGALGS_LIST:
1179 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1180 return tls1_set_sigalgs_list(NULL, parg, 0);
1188 case SSL_CTRL_GET_READ_AHEAD:
1189 return(ctx->read_ahead);
1190 case SSL_CTRL_SET_READ_AHEAD:
1192 ctx->read_ahead=larg;
1195 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1196 ctx->msg_callback_arg = parg;
1199 case SSL_CTRL_GET_MAX_CERT_LIST:
1200 return(ctx->max_cert_list);
1201 case SSL_CTRL_SET_MAX_CERT_LIST:
1202 l=ctx->max_cert_list;
1203 ctx->max_cert_list=larg;
1206 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1207 l=ctx->session_cache_size;
1208 ctx->session_cache_size=larg;
1210 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1211 return(ctx->session_cache_size);
1212 case SSL_CTRL_SET_SESS_CACHE_MODE:
1213 l=ctx->session_cache_mode;
1214 ctx->session_cache_mode=larg;
1216 case SSL_CTRL_GET_SESS_CACHE_MODE:
1217 return(ctx->session_cache_mode);
1219 case SSL_CTRL_SESS_NUMBER:
1220 return(lh_SSL_SESSION_num_items(ctx->sessions));
1221 case SSL_CTRL_SESS_CONNECT:
1222 return(ctx->stats.sess_connect);
1223 case SSL_CTRL_SESS_CONNECT_GOOD:
1224 return(ctx->stats.sess_connect_good);
1225 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1226 return(ctx->stats.sess_connect_renegotiate);
1227 case SSL_CTRL_SESS_ACCEPT:
1228 return(ctx->stats.sess_accept);
1229 case SSL_CTRL_SESS_ACCEPT_GOOD:
1230 return(ctx->stats.sess_accept_good);
1231 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1232 return(ctx->stats.sess_accept_renegotiate);
1233 case SSL_CTRL_SESS_HIT:
1234 return(ctx->stats.sess_hit);
1235 case SSL_CTRL_SESS_CB_HIT:
1236 return(ctx->stats.sess_cb_hit);
1237 case SSL_CTRL_SESS_MISSES:
1238 return(ctx->stats.sess_miss);
1239 case SSL_CTRL_SESS_TIMEOUTS:
1240 return(ctx->stats.sess_timeout);
1241 case SSL_CTRL_SESS_CACHE_FULL:
1242 return(ctx->stats.sess_cache_full);
1243 case SSL_CTRL_OPTIONS:
1244 return(ctx->options|=larg);
1245 case SSL_CTRL_CLEAR_OPTIONS:
1246 return(ctx->options&=~larg);
1248 return(ctx->mode|=larg);
1249 case SSL_CTRL_CLEAR_MODE:
1250 return(ctx->mode&=~larg);
1251 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1252 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1254 ctx->max_send_fragment = larg;
1256 case SSL_CTRL_CERT_FLAGS:
1257 return(ctx->cert->cert_flags|=larg);
1258 case SSL_CTRL_CLEAR_CERT_FLAGS:
1259 return(ctx->cert->cert_flags &=~larg);
1261 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1265 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1269 case SSL_CTRL_SET_MSG_CALLBACK:
1270 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1274 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1278 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1286 return((l > 0)?1:-1);
1289 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1290 const SSL_CIPHER * const *bp)
1294 l=(*ap)->id-(*bp)->id;
1298 return((l > 0)?1:-1);
1301 /** return a STACK of the ciphers available for the SSL and in order of
1303 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1307 if (s->cipher_list != NULL)
1309 return(s->cipher_list);
1311 else if ((s->ctx != NULL) &&
1312 (s->ctx->cipher_list != NULL))
1314 return(s->ctx->cipher_list);
1320 /** return a STACK of the ciphers available for the SSL and in order of
1322 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1326 if (s->cipher_list_by_id != NULL)
1328 return(s->cipher_list_by_id);
1330 else if ((s->ctx != NULL) &&
1331 (s->ctx->cipher_list_by_id != NULL))
1333 return(s->ctx->cipher_list_by_id);
1339 /** The old interface to get the same thing as SSL_get_ciphers() */
1340 const char *SSL_get_cipher_list(const SSL *s,int n)
1343 STACK_OF(SSL_CIPHER) *sk;
1345 if (s == NULL) return(NULL);
1346 sk=SSL_get_ciphers(s);
1347 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1349 c=sk_SSL_CIPHER_value(sk,n);
1350 if (c == NULL) return(NULL);
1354 /** specify the ciphers to be used by default by the SSL_CTX */
1355 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1357 STACK_OF(SSL_CIPHER) *sk;
1359 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1360 &ctx->cipher_list_by_id,str, ctx->cert);
1361 /* ssl_create_cipher_list may return an empty stack if it
1362 * was unable to find a cipher matching the given rule string
1363 * (for example if the rule string specifies a cipher which
1364 * has been disabled). This is not an error as far as
1365 * ssl_create_cipher_list is concerned, and hence
1366 * ctx->cipher_list and ctx->cipher_list_by_id has been
1370 else if (sk_SSL_CIPHER_num(sk) == 0)
1372 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1378 /** specify the ciphers to be used by the SSL */
1379 int SSL_set_cipher_list(SSL *s,const char *str)
1381 STACK_OF(SSL_CIPHER) *sk;
1383 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1384 &s->cipher_list_by_id,str, s->cert);
1385 /* see comment in SSL_CTX_set_cipher_list */
1388 else if (sk_SSL_CIPHER_num(sk) == 0)
1390 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1396 /* works well for SSLv2, not so good for SSLv3 */
1397 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1400 STACK_OF(SSL_CIPHER) *sk;
1404 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1409 sk=s->session->ciphers;
1410 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1414 c=sk_SSL_CIPHER_value(sk,i);
1432 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1433 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1439 int no_scsv = s->renegotiate;
1440 /* Set disabled masks for this session */
1441 ssl_set_client_disabled(s);
1443 if (sk == NULL) return(0);
1446 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1448 c=sk_SSL_CIPHER_value(sk,i);
1449 /* Skip disabled ciphers */
1450 if (c->algorithm_ssl & ct->mask_ssl ||
1451 c->algorithm_mkey & ct->mask_k ||
1452 c->algorithm_auth & ct->mask_a)
1454 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1455 if (c->id == SSL3_CK_SCSV)
1463 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1466 /* If p == q, no ciphers and caller indicates an error. Otherwise
1467 * add SCSV if not renegotiating.
1469 if (p != q && !no_scsv)
1471 static SSL_CIPHER scsv =
1473 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1475 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1477 #ifdef OPENSSL_RI_DEBUG
1478 fprintf(stderr, "SCSV sent by client\n");
1485 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1486 STACK_OF(SSL_CIPHER) **skp)
1488 const SSL_CIPHER *c;
1489 STACK_OF(SSL_CIPHER) *sk;
1492 s->s3->send_connection_binding = 0;
1494 n=ssl_put_cipher_by_char(s,NULL,NULL);
1497 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1500 if ((skp == NULL) || (*skp == NULL))
1501 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1505 sk_SSL_CIPHER_zero(sk);
1508 if (s->cert->ciphers_raw)
1509 OPENSSL_free(s->cert->ciphers_raw);
1510 s->cert->ciphers_raw = BUF_memdup(p, num);
1511 if (s->cert->ciphers_raw == NULL)
1513 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1516 s->cert->ciphers_rawlen = (size_t)num;
1518 for (i=0; i<num; i+=n)
1520 /* Check for SCSV */
1521 if (s->s3 && (n != 3 || !p[0]) &&
1522 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1523 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1525 /* SCSV fatal if renegotiating */
1528 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1529 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1532 s->s3->send_connection_binding = 1;
1534 #ifdef OPENSSL_RI_DEBUG
1535 fprintf(stderr, "SCSV received by server\n");
1540 c=ssl_get_cipher_by_char(s,p);
1544 if (!sk_SSL_CIPHER_push(sk,c))
1546 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1556 if ((skp == NULL) || (*skp == NULL))
1557 sk_SSL_CIPHER_free(sk);
1562 #ifndef OPENSSL_NO_TLSEXT
1563 /** return a servername extension value if provided in Client Hello, or NULL.
1564 * So far, only host_name types are defined (RFC 3546).
1567 const char *SSL_get_servername(const SSL *s, const int type)
1569 if (type != TLSEXT_NAMETYPE_host_name)
1572 return s->session && !s->tlsext_hostname ?
1573 s->session->tlsext_hostname :
1577 int SSL_get_servername_type(const SSL *s)
1579 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1580 return TLSEXT_NAMETYPE_host_name;
1584 # ifndef OPENSSL_NO_NEXTPROTONEG
1585 /* SSL_select_next_proto implements the standard protocol selection. It is
1586 * expected that this function is called from the callback set by
1587 * SSL_CTX_set_next_proto_select_cb.
1589 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1590 * strings. The length byte itself is not included in the length. A byte
1591 * string of length 0 is invalid. No byte string may be truncated.
1593 * The current, but experimental algorithm for selecting the protocol is:
1595 * 1) If the server doesn't support NPN then this is indicated to the
1596 * callback. In this case, the client application has to abort the connection
1597 * or have a default application level protocol.
1599 * 2) If the server supports NPN, but advertises an empty list then the
1600 * client selects the first protcol in its list, but indicates via the
1601 * API that this fallback case was enacted.
1603 * 3) Otherwise, the client finds the first protocol in the server's list
1604 * that it supports and selects this protocol. This is because it's
1605 * assumed that the server has better information about which protocol
1606 * a client should use.
1608 * 4) If the client doesn't support any of the server's advertised
1609 * protocols, then this is treated the same as case 2.
1612 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1613 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1615 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, const unsigned char *server, unsigned int server_len, const unsigned char *client, unsigned int client_len)
1618 const unsigned char *result;
1619 int status = OPENSSL_NPN_UNSUPPORTED;
1621 /* For each protocol in server preference order, see if we support it. */
1622 for (i = 0; i < server_len; )
1624 for (j = 0; j < client_len; )
1626 if (server[i] == client[j] &&
1627 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1629 /* We found a match */
1630 result = &server[i];
1631 status = OPENSSL_NPN_NEGOTIATED;
1641 /* There's no overlap between our protocols and the server's list. */
1643 status = OPENSSL_NPN_NO_OVERLAP;
1646 *out = (unsigned char *) result + 1;
1647 *outlen = result[0];
1651 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1652 * requested protocol for this connection and returns 0. If the client didn't
1653 * request any protocol, then *data is set to NULL.
1655 * Note that the client can request any protocol it chooses. The value returned
1656 * from this function need not be a member of the list of supported protocols
1657 * provided by the callback.
1659 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1661 *data = s->next_proto_negotiated;
1665 *len = s->next_proto_negotiated_len;
1669 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1670 * TLS server needs a list of supported protocols for Next Protocol
1671 * Negotiation. The returned list must be in wire format. The list is returned
1672 * by setting |out| to point to it and |outlen| to its length. This memory will
1673 * not be modified, but one should assume that the SSL* keeps a reference to
1676 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1677 * such extension will be included in the ServerHello. */
1678 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg), void *arg)
1680 ctx->next_protos_advertised_cb = cb;
1681 ctx->next_protos_advertised_cb_arg = arg;
1684 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1685 * client needs to select a protocol from the server's provided list. |out|
1686 * must be set to point to the selected protocol (which may be within |in|).
1687 * The length of the protocol name must be written into |outlen|. The server's
1688 * advertised protocols are provided in |in| and |inlen|. The callback can
1689 * assume that |in| is syntactically valid.
1691 * The client must select a protocol. It is fatal to the connection if this
1692 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1694 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg), void *arg)
1696 ctx->next_proto_select_cb = cb;
1697 ctx->next_proto_select_cb_arg = arg;
1701 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1702 custom_cli_ext_first_cb_fn fn1,
1703 custom_cli_ext_second_cb_fn fn2, void* arg)
1706 custom_cli_ext_record* record;
1708 /* Check for duplicates */
1709 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1710 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1713 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1714 (ctx->custom_cli_ext_records_count + 1) *
1715 sizeof(custom_cli_ext_record));
1716 if (!ctx->custom_cli_ext_records) {
1717 ctx->custom_cli_ext_records_count = 0;
1720 ctx->custom_cli_ext_records_count++;
1721 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1722 record->ext_type = ext_type;
1729 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1730 custom_srv_ext_first_cb_fn fn1,
1731 custom_srv_ext_second_cb_fn fn2, void* arg)
1734 custom_srv_ext_record* record;
1736 /* Check for duplicates */
1737 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1738 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1741 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1742 (ctx->custom_srv_ext_records_count + 1) *
1743 sizeof(custom_srv_ext_record));
1744 if (!ctx->custom_srv_ext_records) {
1745 ctx->custom_srv_ext_records_count = 0;
1748 ctx->custom_srv_ext_records_count++;
1749 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1750 record->ext_type = ext_type;
1759 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1760 const char *label, size_t llen, const unsigned char *p, size_t plen,
1763 if (s->version < TLS1_VERSION)
1766 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1771 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1776 ((unsigned int) a->session_id[0] )|
1777 ((unsigned int) a->session_id[1]<< 8L)|
1778 ((unsigned long)a->session_id[2]<<16L)|
1779 ((unsigned long)a->session_id[3]<<24L);
1783 /* NB: If this function (or indeed the hash function which uses a sort of
1784 * coarser function than this one) is changed, ensure
1785 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1786 * able to construct an SSL_SESSION that will collide with any existing session
1787 * with a matching session ID. */
1788 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1790 if (a->ssl_version != b->ssl_version)
1792 if (a->session_id_length != b->session_id_length)
1794 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1797 /* These wrapper functions should remain rather than redeclaring
1798 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1799 * variable. The reason is that the functions aren't static, they're exposed via
1801 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1802 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1804 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1810 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1815 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1817 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1822 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1824 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1827 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1831 memset(ret,0,sizeof(SSL_CTX));
1835 ret->cert_store=NULL;
1836 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1837 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1838 ret->session_cache_head=NULL;
1839 ret->session_cache_tail=NULL;
1841 /* We take the system default */
1842 ret->session_timeout=meth->get_timeout();
1844 ret->new_session_cb=0;
1845 ret->remove_session_cb=0;
1846 ret->get_session_cb=0;
1847 ret->generate_session_id=0;
1849 memset((char *)&ret->stats,0,sizeof(ret->stats));
1852 ret->quiet_shutdown=0;
1854 /* ret->cipher=NULL;*/
1855 /* ret->s2->challenge=NULL;
1856 ret->master_key=NULL;
1858 ret->s2->conn_id=NULL; */
1860 ret->info_callback=NULL;
1862 ret->app_verify_callback=0;
1863 ret->app_verify_arg=NULL;
1865 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1867 ret->msg_callback=0;
1868 ret->msg_callback_arg=NULL;
1869 ret->verify_mode=SSL_VERIFY_NONE;
1871 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1873 ret->sid_ctx_length=0;
1874 ret->default_verify_callback=NULL;
1875 if ((ret->cert=ssl_cert_new()) == NULL)
1878 ret->default_passwd_callback=0;
1879 ret->default_passwd_callback_userdata=NULL;
1880 ret->client_cert_cb=0;
1881 ret->app_gen_cookie_cb=0;
1882 ret->app_verify_cookie_cb=0;
1884 ret->sessions=lh_SSL_SESSION_new();
1885 if (ret->sessions == NULL) goto err;
1886 ret->cert_store=X509_STORE_new();
1887 if (ret->cert_store == NULL) goto err;
1889 ssl_create_cipher_list(ret->method,
1890 &ret->cipher_list,&ret->cipher_list_by_id,
1891 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1892 if (ret->cipher_list == NULL
1893 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1895 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1899 ret->param = X509_VERIFY_PARAM_new();
1903 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1905 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1908 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1910 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1913 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1915 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1919 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1922 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1924 ret->extra_certs=NULL;
1925 /* No compression for DTLS */
1926 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1927 ret->comp_methods=SSL_COMP_get_compression_methods();
1929 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1931 #ifndef OPENSSL_NO_TLSEXT
1932 ret->tlsext_servername_callback = 0;
1933 ret->tlsext_servername_arg = NULL;
1934 /* Setup RFC4507 ticket keys */
1935 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1936 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1937 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1938 ret->options |= SSL_OP_NO_TICKET;
1940 ret->tlsext_status_cb = 0;
1941 ret->tlsext_status_arg = NULL;
1943 # ifndef OPENSSL_NO_NEXTPROTONEG
1944 ret->next_protos_advertised_cb = 0;
1945 ret->next_proto_select_cb = 0;
1948 #ifndef OPENSSL_NO_PSK
1949 ret->psk_identity_hint=NULL;
1950 ret->psk_client_callback=NULL;
1951 ret->psk_server_callback=NULL;
1953 #ifndef OPENSSL_NO_SRP
1954 SSL_CTX_SRP_CTX_init(ret);
1956 ret->custom_cli_ext_records = NULL;
1957 ret->custom_cli_ext_records_count = 0;
1958 ret->custom_srv_ext_records = NULL;
1959 ret->custom_srv_ext_records_count = 0;
1960 #ifndef OPENSSL_NO_BUF_FREELISTS
1961 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1962 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1963 if (!ret->rbuf_freelist)
1965 ret->rbuf_freelist->chunklen = 0;
1966 ret->rbuf_freelist->len = 0;
1967 ret->rbuf_freelist->head = NULL;
1968 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1969 if (!ret->wbuf_freelist)
1971 OPENSSL_free(ret->rbuf_freelist);
1974 ret->wbuf_freelist->chunklen = 0;
1975 ret->wbuf_freelist->len = 0;
1976 ret->wbuf_freelist->head = NULL;
1978 #ifndef OPENSSL_NO_ENGINE
1979 ret->client_cert_engine = NULL;
1980 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1981 #define eng_strx(x) #x
1982 #define eng_str(x) eng_strx(x)
1983 /* Use specific client engine automatically... ignore errors */
1986 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1990 ENGINE_load_builtin_engines();
1991 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1993 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1998 /* Default is to connect to non-RI servers. When RI is more widely
1999 * deployed might change this.
2001 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2005 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2007 if (ret != NULL) SSL_CTX_free(ret);
2012 static void SSL_COMP_free(SSL_COMP *comp)
2013 { OPENSSL_free(comp); }
2016 #ifndef OPENSSL_NO_BUF_FREELISTS
2018 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2020 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2021 for (ent = list->head; ent; ent = next)
2030 void SSL_CTX_free(SSL_CTX *a)
2034 if (a == NULL) return;
2036 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2038 REF_PRINT("SSL_CTX",a);
2044 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2050 X509_VERIFY_PARAM_free(a->param);
2053 * Free internal session cache. However: the remove_cb() may reference
2054 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2055 * after the sessions were flushed.
2056 * As the ex_data handling routines might also touch the session cache,
2057 * the most secure solution seems to be: empty (flush) the cache, then
2058 * free ex_data, then finally free the cache.
2059 * (See ticket [openssl.org #212].)
2061 if (a->sessions != NULL)
2062 SSL_CTX_flush_sessions(a,0);
2064 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2066 if (a->sessions != NULL)
2067 lh_SSL_SESSION_free(a->sessions);
2069 if (a->cert_store != NULL)
2070 X509_STORE_free(a->cert_store);
2071 if (a->cipher_list != NULL)
2072 sk_SSL_CIPHER_free(a->cipher_list);
2073 if (a->cipher_list_by_id != NULL)
2074 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2075 if (a->cert != NULL)
2076 ssl_cert_free(a->cert);
2077 if (a->client_CA != NULL)
2078 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2079 if (a->extra_certs != NULL)
2080 sk_X509_pop_free(a->extra_certs,X509_free);
2081 #if 0 /* This should never be done, since it removes a global database */
2082 if (a->comp_methods != NULL)
2083 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2085 a->comp_methods = NULL;
2088 if (a->srtp_profiles)
2089 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2091 #ifndef OPENSSL_NO_PSK
2092 if (a->psk_identity_hint)
2093 OPENSSL_free(a->psk_identity_hint);
2095 #ifndef OPENSSL_NO_SRP
2096 SSL_CTX_SRP_CTX_free(a);
2098 #ifndef OPENSSL_NO_TLSEXT
2099 OPENSSL_free(a->custom_cli_ext_records);
2100 OPENSSL_free(a->custom_srv_ext_records);
2102 #ifndef OPENSSL_NO_ENGINE
2103 if (a->client_cert_engine)
2104 ENGINE_finish(a->client_cert_engine);
2107 #ifndef OPENSSL_NO_BUF_FREELISTS
2108 if (a->wbuf_freelist)
2109 ssl_buf_freelist_free(a->wbuf_freelist);
2110 if (a->rbuf_freelist)
2111 ssl_buf_freelist_free(a->rbuf_freelist);
2113 #ifndef OPENSSL_NO_TLSEXT
2114 # ifndef OPENSSL_NO_EC
2115 if (a->tlsext_ecpointformatlist)
2116 OPENSSL_free(a->tlsext_ecpointformatlist);
2117 if (a->tlsext_ellipticcurvelist)
2118 OPENSSL_free(a->tlsext_ellipticcurvelist);
2119 # endif /* OPENSSL_NO_EC */
2125 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2127 ctx->default_passwd_callback=cb;
2130 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2132 ctx->default_passwd_callback_userdata=u;
2135 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2137 ctx->app_verify_callback=cb;
2138 ctx->app_verify_arg=arg;
2141 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2143 ctx->verify_mode=mode;
2144 ctx->default_verify_callback=cb;
2147 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2149 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2152 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2154 ssl_cert_set_cert_cb(c->cert, cb, arg);
2157 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2159 ssl_cert_set_cert_cb(s->cert, cb, arg);
2162 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2165 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2166 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2167 int rsa_tmp_export,dh_tmp_export,kl;
2168 unsigned long mask_k,mask_a,emask_k,emask_a;
2169 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
2170 #ifndef OPENSSL_NO_ECDH
2174 EVP_PKEY *ecc_pkey = NULL;
2175 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2177 if (c == NULL) return;
2179 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2181 #ifndef OPENSSL_NO_RSA
2182 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2183 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2184 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2186 rsa_tmp=rsa_tmp_export=0;
2188 #ifndef OPENSSL_NO_DH
2189 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2190 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2191 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2193 dh_tmp=dh_tmp_export=0;
2196 #ifndef OPENSSL_NO_ECDH
2197 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2199 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2200 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2201 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2202 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2203 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2204 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2205 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2206 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2207 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2208 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2209 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2210 /* FIX THIS EAY EAY EAY */
2211 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2212 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2213 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2214 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2223 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2224 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2225 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2228 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2229 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2230 mask_k |= SSL_kGOST;
2231 mask_a |= SSL_aGOST01;
2233 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2234 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2235 mask_k |= SSL_kGOST;
2236 mask_a |= SSL_aGOST94;
2239 if (rsa_enc || (rsa_tmp && rsa_sign))
2241 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2245 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2246 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2247 (rsa_enc || rsa_sign || dsa_sign))
2249 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2250 (rsa_enc || rsa_sign || dsa_sign))
2260 if (dh_rsa) mask_k|=SSL_kDHr;
2261 if (dh_rsa_export) emask_k|=SSL_kDHr;
2263 if (dh_dsa) mask_k|=SSL_kDHd;
2264 if (dh_dsa_export) emask_k|=SSL_kDHd;
2266 if (emask_k & (SSL_kDHr|SSL_kDHd))
2269 if (rsa_enc || rsa_sign)
2284 #ifndef OPENSSL_NO_KRB5
2291 /* An ECC certificate may be usable for ECDH and/or
2292 * ECDSA cipher suites depending on the key usage extension.
2296 cpk = &c->pkeys[SSL_PKEY_ECC];
2298 /* This call populates extension flags (ex_flags) */
2299 X509_check_purpose(x, -1, 0);
2300 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2301 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2302 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2303 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2304 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2306 ecc_pkey = X509_get_pubkey(x);
2307 ecc_pkey_size = (ecc_pkey != NULL) ?
2308 EVP_PKEY_bits(ecc_pkey) : 0;
2309 EVP_PKEY_free(ecc_pkey);
2310 if ((x->sig_alg) && (x->sig_alg->algorithm))
2312 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2313 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2315 #ifndef OPENSSL_NO_ECDH
2319 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2323 if (ecc_pkey_size <= 163)
2325 emask_k|=SSL_kECDHr;
2330 if (pk_nid == NID_X9_62_id_ecPublicKey)
2334 if (ecc_pkey_size <= 163)
2336 emask_k|=SSL_kECDHe;
2342 #ifndef OPENSSL_NO_ECDSA
2346 emask_a|=SSL_aECDSA;
2351 #ifndef OPENSSL_NO_ECDH
2355 emask_k|=SSL_kEECDH;
2359 #ifndef OPENSSL_NO_PSK
2362 emask_k |= SSL_kPSK;
2363 emask_a |= SSL_aPSK;
2368 c->export_mask_k=emask_k;
2369 c->export_mask_a=emask_a;
2373 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2374 #define ku_reject(x, usage) \
2375 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2377 #ifndef OPENSSL_NO_EC
2379 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2381 unsigned long alg_k, alg_a;
2382 EVP_PKEY *pkey = NULL;
2384 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2385 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2387 alg_k = cs->algorithm_mkey;
2388 alg_a = cs->algorithm_auth;
2390 if (SSL_C_IS_EXPORT(cs))
2392 /* ECDH key length in export ciphers must be <= 163 bits */
2393 pkey = X509_get_pubkey(x);
2394 if (pkey == NULL) return 0;
2395 keysize = EVP_PKEY_bits(pkey);
2396 EVP_PKEY_free(pkey);
2397 if (keysize > 163) return 0;
2400 /* This call populates the ex_flags field correctly */
2401 X509_check_purpose(x, -1, 0);
2402 if ((x->sig_alg) && (x->sig_alg->algorithm))
2404 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2405 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2407 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2409 /* key usage, if present, must allow key agreement */
2410 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2412 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2415 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2417 /* signature alg must be ECDSA */
2418 if (pk_nid != NID_X9_62_id_ecPublicKey)
2420 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2424 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2426 /* signature alg must be RSA */
2428 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2430 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2435 if (alg_a & SSL_aECDSA)
2437 /* key usage, if present, must allow signing */
2438 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2440 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2445 return 1; /* all checks are ok */
2450 static int ssl_get_server_cert_index(const SSL *s)
2453 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2454 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2455 idx = SSL_PKEY_RSA_SIGN;
2457 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2461 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2467 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2469 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2470 /* Broken protocol test: return last used certificate: which may
2471 * mismatch the one expected.
2473 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2477 i = ssl_get_server_cert_index(s);
2479 /* This may or may not be an error. */
2484 return &c->pkeys[i];
2487 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2489 unsigned long alg_a;
2493 alg_a = cipher->algorithm_auth;
2496 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2497 /* Broken protocol test: use last key: which may
2498 * mismatch the one expected.
2500 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2501 idx = c->key - c->pkeys;
2505 if ((alg_a & SSL_aDSS) &&
2506 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2507 idx = SSL_PKEY_DSA_SIGN;
2508 else if (alg_a & SSL_aRSA)
2510 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2511 idx = SSL_PKEY_RSA_SIGN;
2512 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2513 idx = SSL_PKEY_RSA_ENC;
2515 else if ((alg_a & SSL_aECDSA) &&
2516 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2520 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2524 *pmd = c->pkeys[idx].digest;
2525 return c->pkeys[idx].privatekey;
2528 #ifndef OPENSSL_NO_TLSEXT
2529 unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length)
2535 i = ssl_get_server_cert_index(s);
2541 if (c->pkeys[i].authz == NULL)
2543 *authz_length = c->pkeys[i].authz_length;
2545 return c->pkeys[i].authz;
2548 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2549 size_t *serverinfo_length)
2553 *serverinfo_length = 0;
2556 i = ssl_get_server_cert_index(s);
2560 if (c->pkeys[i].serverinfo == NULL)
2563 *serverinfo = c->pkeys[i].serverinfo;
2564 *serverinfo_length = c->pkeys[i].serverinfo_length;
2569 void ssl_update_cache(SSL *s,int mode)
2573 /* If the session_id_length is 0, we are not supposed to cache it,
2574 * and it would be rather hard to do anyway :-) */
2575 if (s->session->session_id_length == 0) return;
2577 i=s->session_ctx->session_cache_mode;
2578 if ((i & mode) && (!s->hit)
2579 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2580 || SSL_CTX_add_session(s->session_ctx,s->session))
2581 && (s->session_ctx->new_session_cb != NULL))
2583 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2584 if (!s->session_ctx->new_session_cb(s,s->session))
2585 SSL_SESSION_free(s->session);
2588 /* auto flush every 255 connections */
2589 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2590 ((i & mode) == mode))
2592 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2593 ?s->session_ctx->stats.sess_connect_good
2594 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2596 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2601 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2606 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2611 if (s->method != meth)
2613 if (s->handshake_func != NULL)
2614 conn=(s->handshake_func == s->method->ssl_connect);
2616 if (s->method->version == meth->version)
2620 s->method->ssl_free(s);
2622 ret=s->method->ssl_new(s);
2626 s->handshake_func=meth->ssl_connect;
2628 s->handshake_func=meth->ssl_accept;
2633 int SSL_get_error(const SSL *s,int i)
2639 if (i > 0) return(SSL_ERROR_NONE);
2641 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2642 * etc, where we do encode the error */
2643 if ((l=ERR_peek_error()) != 0)
2645 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2646 return(SSL_ERROR_SYSCALL);
2648 return(SSL_ERROR_SSL);
2651 if ((i < 0) && SSL_want_read(s))
2653 bio=SSL_get_rbio(s);
2654 if (BIO_should_read(bio))
2655 return(SSL_ERROR_WANT_READ);
2656 else if (BIO_should_write(bio))
2657 /* This one doesn't make too much sense ... We never try
2658 * to write to the rbio, and an application program where
2659 * rbio and wbio are separate couldn't even know what it
2661 * However if we ever set s->rwstate incorrectly
2662 * (so that we have SSL_want_read(s) instead of
2663 * SSL_want_write(s)) and rbio and wbio *are* the same,
2664 * this test works around that bug; so it might be safer
2666 return(SSL_ERROR_WANT_WRITE);
2667 else if (BIO_should_io_special(bio))
2669 reason=BIO_get_retry_reason(bio);
2670 if (reason == BIO_RR_CONNECT)
2671 return(SSL_ERROR_WANT_CONNECT);
2672 else if (reason == BIO_RR_ACCEPT)
2673 return(SSL_ERROR_WANT_ACCEPT);
2675 return(SSL_ERROR_SYSCALL); /* unknown */
2679 if ((i < 0) && SSL_want_write(s))
2681 bio=SSL_get_wbio(s);
2682 if (BIO_should_write(bio))
2683 return(SSL_ERROR_WANT_WRITE);
2684 else if (BIO_should_read(bio))
2685 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2686 return(SSL_ERROR_WANT_READ);
2687 else if (BIO_should_io_special(bio))
2689 reason=BIO_get_retry_reason(bio);
2690 if (reason == BIO_RR_CONNECT)
2691 return(SSL_ERROR_WANT_CONNECT);
2692 else if (reason == BIO_RR_ACCEPT)
2693 return(SSL_ERROR_WANT_ACCEPT);
2695 return(SSL_ERROR_SYSCALL);
2698 if ((i < 0) && SSL_want_x509_lookup(s))
2700 return(SSL_ERROR_WANT_X509_LOOKUP);
2705 if (s->version == SSL2_VERSION)
2707 /* assume it is the socket being closed */
2708 return(SSL_ERROR_ZERO_RETURN);
2712 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2713 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2714 return(SSL_ERROR_ZERO_RETURN);
2717 return(SSL_ERROR_SYSCALL);
2720 int SSL_do_handshake(SSL *s)
2724 if (s->handshake_func == NULL)
2726 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2730 s->method->ssl_renegotiate_check(s);
2732 if (SSL_in_init(s) || SSL_in_before(s))
2734 ret=s->handshake_func(s);
2739 /* For the next 2 functions, SSL_clear() sets shutdown and so
2740 * one of these calls will reset it */
2741 void SSL_set_accept_state(SSL *s)
2745 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2746 s->handshake_func=s->method->ssl_accept;
2747 /* clear the current cipher */
2748 ssl_clear_cipher_ctx(s);
2749 ssl_clear_hash_ctx(&s->read_hash);
2750 ssl_clear_hash_ctx(&s->write_hash);
2753 void SSL_set_connect_state(SSL *s)
2757 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2758 s->handshake_func=s->method->ssl_connect;
2759 /* clear the current cipher */
2760 ssl_clear_cipher_ctx(s);
2761 ssl_clear_hash_ctx(&s->read_hash);
2762 ssl_clear_hash_ctx(&s->write_hash);
2765 int ssl_undefined_function(SSL *s)
2767 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2771 int ssl_undefined_void_function(void)
2773 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2777 int ssl_undefined_const_function(const SSL *s)
2779 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2783 SSL_METHOD *ssl_bad_method(int ver)
2785 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2789 const char *SSL_get_version(const SSL *s)
2791 if (s->version == TLS1_2_VERSION)
2793 else if (s->version == TLS1_1_VERSION)
2795 else if (s->version == TLS1_VERSION)
2797 else if (s->version == SSL3_VERSION)
2799 else if (s->version == SSL2_VERSION)
2805 SSL *SSL_dup(SSL *s)
2807 STACK_OF(X509_NAME) *sk;
2812 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2815 ret->version = s->version;
2816 ret->type = s->type;
2817 ret->method = s->method;
2819 if (s->session != NULL)
2821 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2822 SSL_copy_session_id(ret,s);
2826 /* No session has been established yet, so we have to expect
2827 * that s->cert or ret->cert will be changed later --
2828 * they should not both point to the same object,
2829 * and thus we can't use SSL_copy_session_id. */
2831 ret->method->ssl_free(ret);
2832 ret->method = s->method;
2833 ret->method->ssl_new(ret);
2835 if (s->cert != NULL)
2837 if (ret->cert != NULL)
2839 ssl_cert_free(ret->cert);
2841 ret->cert = ssl_cert_dup(s->cert);
2842 if (ret->cert == NULL)
2846 SSL_set_session_id_context(ret,
2847 s->sid_ctx, s->sid_ctx_length);
2850 ret->options=s->options;
2852 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2853 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2854 ret->msg_callback = s->msg_callback;
2855 ret->msg_callback_arg = s->msg_callback_arg;
2856 SSL_set_verify(ret,SSL_get_verify_mode(s),
2857 SSL_get_verify_callback(s));
2858 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2859 ret->generate_session_id = s->generate_session_id;
2861 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2863 ret->debug=s->debug;
2865 /* copy app data, a little dangerous perhaps */
2866 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2869 /* setup rbio, and wbio */
2870 if (s->rbio != NULL)
2872 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2875 if (s->wbio != NULL)
2877 if (s->wbio != s->rbio)
2879 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2883 ret->wbio=ret->rbio;
2885 ret->rwstate = s->rwstate;
2886 ret->in_handshake = s->in_handshake;
2887 ret->handshake_func = s->handshake_func;
2888 ret->server = s->server;
2889 ret->renegotiate = s->renegotiate;
2890 ret->new_session = s->new_session;
2891 ret->quiet_shutdown = s->quiet_shutdown;
2892 ret->shutdown=s->shutdown;
2893 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2894 ret->rstate=s->rstate;
2895 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2898 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2900 /* dup the cipher_list and cipher_list_by_id stacks */
2901 if (s->cipher_list != NULL)
2903 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2906 if (s->cipher_list_by_id != NULL)
2907 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2911 /* Dup the client_CA list */
2912 if (s->client_CA != NULL)
2914 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2916 for (i=0; i<sk_X509_NAME_num(sk); i++)
2918 xn=sk_X509_NAME_value(sk,i);
2919 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2930 if (ret != NULL) SSL_free(ret);
2936 void ssl_clear_cipher_ctx(SSL *s)
2938 if (s->enc_read_ctx != NULL)
2940 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2941 OPENSSL_free(s->enc_read_ctx);
2942 s->enc_read_ctx=NULL;
2944 if (s->enc_write_ctx != NULL)
2946 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2947 OPENSSL_free(s->enc_write_ctx);
2948 s->enc_write_ctx=NULL;
2950 #ifndef OPENSSL_NO_COMP
2951 if (s->expand != NULL)
2953 COMP_CTX_free(s->expand);
2956 if (s->compress != NULL)
2958 COMP_CTX_free(s->compress);
2964 /* Fix this function so that it takes an optional type parameter */
2965 X509 *SSL_get_certificate(const SSL *s)
2967 if (s->cert != NULL)
2968 return(s->cert->key->x509);
2973 /* Fix this function so that it takes an optional type parameter */
2974 EVP_PKEY *SSL_get_privatekey(SSL *s)
2976 if (s->cert != NULL)
2977 return(s->cert->key->privatekey);
2982 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2984 if ((s->session != NULL) && (s->session->cipher != NULL))
2985 return(s->session->cipher);
2988 #ifdef OPENSSL_NO_COMP
2989 const void *SSL_get_current_compression(SSL *s)
2993 const void *SSL_get_current_expansion(SSL *s)
2999 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3001 if (s->compress != NULL)
3002 return(s->compress->meth);
3006 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3008 if (s->expand != NULL)
3009 return(s->expand->meth);
3014 int ssl_init_wbio_buffer(SSL *s,int push)
3018 if (s->bbio == NULL)
3020 bbio=BIO_new(BIO_f_buffer());
3021 if (bbio == NULL) return(0);
3027 if (s->bbio == s->wbio)
3028 s->wbio=BIO_pop(s->wbio);
3030 (void)BIO_reset(bbio);
3031 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3032 if (!BIO_set_read_buffer_size(bbio,1))
3034 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3039 if (s->wbio != bbio)
3040 s->wbio=BIO_push(bbio,s->wbio);
3044 if (s->wbio == bbio)
3045 s->wbio=BIO_pop(bbio);
3050 void ssl_free_wbio_buffer(SSL *s)
3052 if (s->bbio == NULL) return;
3054 if (s->bbio == s->wbio)
3056 /* remove buffering */
3057 s->wbio=BIO_pop(s->wbio);
3058 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3059 assert(s->wbio != NULL);
3066 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3068 ctx->quiet_shutdown=mode;
3071 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3073 return(ctx->quiet_shutdown);
3076 void SSL_set_quiet_shutdown(SSL *s,int mode)
3078 s->quiet_shutdown=mode;
3081 int SSL_get_quiet_shutdown(const SSL *s)
3083 return(s->quiet_shutdown);
3086 void SSL_set_shutdown(SSL *s,int mode)
3091 int SSL_get_shutdown(const SSL *s)
3093 return(s->shutdown);
3096 int SSL_version(const SSL *s)
3101 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3106 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3108 if (ssl->ctx == ctx)
3110 #ifndef OPENSSL_NO_TLSEXT
3112 ctx = ssl->initial_ctx;
3114 if (ssl->cert != NULL)
3115 ssl_cert_free(ssl->cert);
3116 ssl->cert = ssl_cert_dup(ctx->cert);
3117 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3118 if (ssl->ctx != NULL)
3119 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3124 #ifndef OPENSSL_NO_STDIO
3125 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3127 return(X509_STORE_set_default_paths(ctx->cert_store));
3130 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3133 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3137 void SSL_set_info_callback(SSL *ssl,
3138 void (*cb)(const SSL *ssl,int type,int val))
3140 ssl->info_callback=cb;
3143 /* One compiler (Diab DCC) doesn't like argument names in returned
3144 function pointer. */
3145 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3147 return ssl->info_callback;
3150 int SSL_state(const SSL *ssl)
3155 void SSL_set_state(SSL *ssl, int state)
3160 void SSL_set_verify_result(SSL *ssl,long arg)
3162 ssl->verify_result=arg;
3165 long SSL_get_verify_result(const SSL *ssl)
3167 return(ssl->verify_result);
3170 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3171 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3173 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3174 new_func, dup_func, free_func);
3177 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3179 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3182 void *SSL_get_ex_data(const SSL *s,int idx)
3184 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3187 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3188 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3190 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3191 new_func, dup_func, free_func);
3194 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3196 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3199 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3201 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3209 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3211 return(ctx->cert_store);
3214 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3216 if (ctx->cert_store != NULL)
3217 X509_STORE_free(ctx->cert_store);
3218 ctx->cert_store=store;
3221 int SSL_want(const SSL *s)
3227 * \brief Set the callback for generating temporary RSA keys.
3228 * \param ctx the SSL context.
3229 * \param cb the callback
3232 #ifndef OPENSSL_NO_RSA
3233 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3237 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3240 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3244 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3250 * \brief The RSA temporary key callback function.
3251 * \param ssl the SSL session.
3252 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3253 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3254 * of the required key in bits.
3255 * \return the temporary RSA key.
3256 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3259 RSA *cb(SSL *ssl,int is_export,int keylength)
3264 * \brief Set the callback for generating temporary DH keys.
3265 * \param ctx the SSL context.
3266 * \param dh the callback
3269 #ifndef OPENSSL_NO_DH
3270 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3273 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3276 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3279 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3283 #ifndef OPENSSL_NO_ECDH
3284 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3287 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3290 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3293 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3297 #ifndef OPENSSL_NO_PSK
3298 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3300 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3302 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3305 if (ctx->psk_identity_hint != NULL)
3306 OPENSSL_free(ctx->psk_identity_hint);
3307 if (identity_hint != NULL)
3309 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3310 if (ctx->psk_identity_hint == NULL)
3314 ctx->psk_identity_hint = NULL;
3318 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3323 if (s->session == NULL)
3324 return 1; /* session not created yet, ignored */
3326 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3328 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3331 if (s->session->psk_identity_hint != NULL)
3332 OPENSSL_free(s->session->psk_identity_hint);
3333 if (identity_hint != NULL)
3335 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3336 if (s->session->psk_identity_hint == NULL)
3340 s->session->psk_identity_hint = NULL;
3344 const char *SSL_get_psk_identity_hint(const SSL *s)
3346 if (s == NULL || s->session == NULL)
3348 return(s->session->psk_identity_hint);
3351 const char *SSL_get_psk_identity(const SSL *s)
3353 if (s == NULL || s->session == NULL)
3355 return(s->session->psk_identity);
3358 void SSL_set_psk_client_callback(SSL *s,
3359 unsigned int (*cb)(SSL *ssl, const char *hint,
3360 char *identity, unsigned int max_identity_len, unsigned char *psk,
3361 unsigned int max_psk_len))
3363 s->psk_client_callback = cb;
3366 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3367 unsigned int (*cb)(SSL *ssl, const char *hint,
3368 char *identity, unsigned int max_identity_len, unsigned char *psk,
3369 unsigned int max_psk_len))
3371 ctx->psk_client_callback = cb;
3374 void SSL_set_psk_server_callback(SSL *s,
3375 unsigned int (*cb)(SSL *ssl, const char *identity,
3376 unsigned char *psk, unsigned int max_psk_len))
3378 s->psk_server_callback = cb;
3381 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3382 unsigned int (*cb)(SSL *ssl, const char *identity,
3383 unsigned char *psk, unsigned int max_psk_len))
3385 ctx->psk_server_callback = cb;
3389 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))
3391 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3393 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))
3395 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3398 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3399 int (*cb)(SSL *ssl, int is_forward_secure))
3401 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3402 (void (*)(void))cb);
3404 void SSL_set_not_resumable_session_callback(SSL *ssl,
3405 int (*cb)(SSL *ssl, int is_forward_secure))
3407 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3408 (void (*)(void))cb);
3411 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3412 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3413 * any. If EVP_MD pointer is passed, initializes ctx with this md
3414 * Returns newly allocated ctx;
3417 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3419 ssl_clear_hash_ctx(hash);
3420 *hash = EVP_MD_CTX_create();
3421 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3424 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3427 if (*hash) EVP_MD_CTX_destroy(*hash);
3431 void SSL_set_debug(SSL *s, int debug)
3436 int SSL_cache_hit(SSL *s)
3441 int SSL_is_server(SSL *s)
3446 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3447 #include "../crypto/bio/bss_file.c"
3450 IMPLEMENT_STACK_OF(SSL_CIPHER)
3451 IMPLEMENT_STACK_OF(SSL_COMP)
3452 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,