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->renegotiate) 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),
263 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
264 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
266 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
272 SSL *SSL_new(SSL_CTX *ctx)
278 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
281 if (ctx->method == NULL)
283 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
287 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
288 if (s == NULL) goto err;
289 memset(s,0,sizeof(SSL));
291 #ifndef OPENSSL_NO_KRB5
292 s->kssl_ctx = kssl_ctx_new();
293 #endif /* OPENSSL_NO_KRB5 */
295 s->options=ctx->options;
297 s->max_cert_list=ctx->max_cert_list;
299 if (ctx->cert != NULL)
301 /* Earlier library versions used to copy the pointer to
302 * the CERT, not its contents; only when setting new
303 * parameters for the per-SSL copy, ssl_cert_new would be
304 * called (and the direct reference to the per-SSL_CTX
305 * settings would be lost, but those still were indirectly
306 * accessed for various purposes, and for that reason they
307 * used to be known as s->ctx->default_cert).
308 * Now we don't look at the SSL_CTX's CERT after having
309 * duplicated it once. */
311 s->cert = ssl_cert_dup(ctx->cert);
316 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
318 s->read_ahead=ctx->read_ahead;
319 s->msg_callback=ctx->msg_callback;
320 s->msg_callback_arg=ctx->msg_callback_arg;
321 s->verify_mode=ctx->verify_mode;
323 s->verify_depth=ctx->verify_depth;
325 s->sid_ctx_length=ctx->sid_ctx_length;
326 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
327 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
328 s->verify_callback=ctx->default_verify_callback;
329 s->generate_session_id=ctx->generate_session_id;
331 s->param = X509_VERIFY_PARAM_new();
334 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
336 s->purpose = ctx->purpose;
337 s->trust = ctx->trust;
339 s->quiet_shutdown=ctx->quiet_shutdown;
340 s->max_send_fragment = ctx->max_send_fragment;
342 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
344 #ifndef OPENSSL_NO_TLSEXT
345 s->tlsext_debug_cb = 0;
346 s->tlsext_debug_arg = NULL;
347 s->tlsext_ticket_expected = 0;
348 s->tlsext_status_type = -1;
349 s->tlsext_status_expected = 0;
350 s->tlsext_ocsp_ids = NULL;
351 s->tlsext_ocsp_exts = NULL;
352 s->tlsext_ocsp_resp = NULL;
353 s->tlsext_ocsp_resplen = -1;
354 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
356 # ifndef OPENSSL_NO_NEXTPROTONEG
357 s->next_proto_negotiated = NULL;
361 s->verify_result=X509_V_OK;
363 s->method=ctx->method;
365 if (!s->method->ssl_new(s))
369 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
373 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
375 #ifndef OPENSSL_NO_PSK
376 s->psk_client_callback=ctx->psk_client_callback;
377 s->psk_server_callback=ctx->psk_server_callback;
385 ssl_cert_free(s->cert);
387 SSL_CTX_free(s->ctx); /* decrement reference count */
390 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
394 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
395 unsigned int sid_ctx_len)
397 if(sid_ctx_len > sizeof ctx->sid_ctx)
399 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
402 ctx->sid_ctx_length=sid_ctx_len;
403 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
408 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
409 unsigned int sid_ctx_len)
411 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
413 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
416 ssl->sid_ctx_length=sid_ctx_len;
417 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
422 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
424 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
425 ctx->generate_session_id = cb;
426 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
430 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
432 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
433 ssl->generate_session_id = cb;
434 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
438 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
441 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
442 * we can "construct" a session to give us the desired check - ie. to
443 * find if there's a session in the hash table that would conflict with
444 * any new session built out of this id/id_len and the ssl_version in
445 * use by this SSL. */
448 if(id_len > sizeof r.session_id)
451 r.ssl_version = ssl->version;
452 r.session_id_length = id_len;
453 memcpy(r.session_id, id, id_len);
454 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
455 * callback is calling us to check the uniqueness of a shorter ID, it
456 * must be compared as a padded-out ID because that is what it will be
457 * converted to when the callback has finished choosing it. */
458 if((r.ssl_version == SSL2_VERSION) &&
459 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
461 memset(r.session_id + id_len, 0,
462 SSL2_SSL_SESSION_ID_LENGTH - id_len);
463 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
466 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
467 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
468 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
472 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
474 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
477 int SSL_set_purpose(SSL *s, int purpose)
479 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
482 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
484 return X509_VERIFY_PARAM_set_trust(s->param, trust);
487 int SSL_set_trust(SSL *s, int trust)
489 return X509_VERIFY_PARAM_set_trust(s->param, trust);
492 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
494 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
497 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
499 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
502 void SSL_free(SSL *s)
509 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
517 fprintf(stderr,"SSL_free, bad reference count\n");
523 X509_VERIFY_PARAM_free(s->param);
525 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
529 /* If the buffering BIO is in place, pop it off */
530 if (s->bbio == s->wbio)
532 s->wbio=BIO_pop(s->wbio);
538 BIO_free_all(s->rbio);
539 if ((s->wbio != NULL) && (s->wbio != s->rbio))
540 BIO_free_all(s->wbio);
542 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
544 /* add extra stuff */
545 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
546 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
548 /* Make the next call work :-) */
549 if (s->session != NULL)
551 ssl_clear_bad_session(s);
552 SSL_SESSION_free(s->session);
555 ssl_clear_cipher_ctx(s);
556 ssl_clear_hash_ctx(&s->read_hash);
557 ssl_clear_hash_ctx(&s->write_hash);
559 if (s->cert != NULL) ssl_cert_free(s->cert);
560 /* Free up if allocated */
562 #ifndef OPENSSL_NO_TLSEXT
563 if (s->tlsext_hostname)
564 OPENSSL_free(s->tlsext_hostname);
565 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
566 #ifndef OPENSSL_NO_EC
567 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
568 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
569 #endif /* OPENSSL_NO_EC */
570 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
571 if (s->tlsext_ocsp_exts)
572 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
573 X509_EXTENSION_free);
574 if (s->tlsext_ocsp_ids)
575 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
576 if (s->tlsext_ocsp_resp)
577 OPENSSL_free(s->tlsext_ocsp_resp);
580 if (s->client_CA != NULL)
581 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
583 if (s->method != NULL) s->method->ssl_free(s);
585 if (s->ctx) SSL_CTX_free(s->ctx);
587 #ifndef OPENSSL_NO_KRB5
588 if (s->kssl_ctx != NULL)
589 kssl_ctx_free(s->kssl_ctx);
590 #endif /* OPENSSL_NO_KRB5 */
592 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
593 if (s->next_proto_negotiated)
594 OPENSSL_free(s->next_proto_negotiated);
600 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
602 /* If the output buffering BIO is still in place, remove it
606 if (s->wbio == s->bbio)
608 s->wbio=s->wbio->next_bio;
609 s->bbio->next_bio=NULL;
612 if ((s->rbio != NULL) && (s->rbio != rbio))
613 BIO_free_all(s->rbio);
614 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
615 BIO_free_all(s->wbio);
620 BIO *SSL_get_rbio(const SSL *s)
623 BIO *SSL_get_wbio(const SSL *s)
626 int SSL_get_fd(const SSL *s)
628 return(SSL_get_rfd(s));
631 int SSL_get_rfd(const SSL *s)
637 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
643 int SSL_get_wfd(const SSL *s)
649 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
655 #ifndef OPENSSL_NO_SOCK
656 int SSL_set_fd(SSL *s,int fd)
661 bio=BIO_new(BIO_s_socket());
665 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
668 BIO_set_fd(bio,fd,BIO_NOCLOSE);
669 SSL_set_bio(s,bio,bio);
675 int SSL_set_wfd(SSL *s,int fd)
680 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
681 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
683 bio=BIO_new(BIO_s_socket());
686 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
687 BIO_set_fd(bio,fd,BIO_NOCLOSE);
688 SSL_set_bio(s,SSL_get_rbio(s),bio);
691 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
697 int SSL_set_rfd(SSL *s,int fd)
702 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
703 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
705 bio=BIO_new(BIO_s_socket());
709 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
712 BIO_set_fd(bio,fd,BIO_NOCLOSE);
713 SSL_set_bio(s,bio,SSL_get_wbio(s));
716 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
724 /* return length of latest Finished message we sent, copy to 'buf' */
725 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
731 ret = s->s3->tmp.finish_md_len;
734 memcpy(buf, s->s3->tmp.finish_md, count);
739 /* return length of latest Finished message we expected, copy to 'buf' */
740 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
746 ret = s->s3->tmp.peer_finish_md_len;
749 memcpy(buf, s->s3->tmp.peer_finish_md, count);
755 int SSL_get_verify_mode(const SSL *s)
757 return(s->verify_mode);
760 int SSL_get_verify_depth(const SSL *s)
762 return X509_VERIFY_PARAM_get_depth(s->param);
765 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
767 return(s->verify_callback);
770 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
772 return(ctx->verify_mode);
775 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
777 return X509_VERIFY_PARAM_get_depth(ctx->param);
780 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
782 return(ctx->default_verify_callback);
785 void SSL_set_verify(SSL *s,int mode,
786 int (*callback)(int ok,X509_STORE_CTX *ctx))
789 if (callback != NULL)
790 s->verify_callback=callback;
793 void SSL_set_verify_depth(SSL *s,int depth)
795 X509_VERIFY_PARAM_set_depth(s->param, depth);
798 void SSL_set_read_ahead(SSL *s,int yes)
803 int SSL_get_read_ahead(const SSL *s)
805 return(s->read_ahead);
808 int SSL_pending(const SSL *s)
810 /* SSL_pending cannot work properly if read-ahead is enabled
811 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
812 * and it is impossible to fix since SSL_pending cannot report
813 * errors that may be observed while scanning the new data.
814 * (Note that SSL_pending() is often used as a boolean value,
815 * so we'd better not return -1.)
817 return(s->method->ssl_pending(s));
820 X509 *SSL_get_peer_certificate(const SSL *s)
824 if ((s == NULL) || (s->session == NULL))
829 if (r == NULL) return(r);
831 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
836 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
840 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
843 r=s->session->sess_cert->cert_chain;
845 /* If we are a client, cert_chain includes the peer's own
846 * certificate; if we are a server, it does not. */
851 /* Now in theory, since the calling process own 't' it should be safe to
852 * modify. We need to be able to read f without being hassled */
853 void SSL_copy_session_id(SSL *t,const SSL *f)
857 /* Do we need to to SSL locking? */
858 SSL_set_session(t,SSL_get_session(f));
860 /* what if we are setup as SSLv2 but want to talk SSLv3 or
862 if (t->method != f->method)
864 t->method->ssl_free(t); /* cleanup current */
865 t->method=f->method; /* change method */
866 t->method->ssl_new(t); /* setup new */
872 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
877 if (tmp != NULL) ssl_cert_free(tmp);
878 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
881 /* Fix this so it checks all the valid key/cert options */
882 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
884 if ( (ctx == NULL) ||
885 (ctx->cert == NULL) ||
886 (ctx->cert->key->x509 == NULL))
888 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
891 if (ctx->cert->key->privatekey == NULL)
893 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
896 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
899 /* Fix this function so that it takes an optional type parameter */
900 int SSL_check_private_key(const SSL *ssl)
904 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
907 if (ssl->cert == NULL)
909 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
912 if (ssl->cert->key->x509 == NULL)
914 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
917 if (ssl->cert->key->privatekey == NULL)
919 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
922 return(X509_check_private_key(ssl->cert->key->x509,
923 ssl->cert->key->privatekey));
926 int SSL_accept(SSL *s)
928 if (s->handshake_func == 0)
929 /* Not properly initialized yet */
930 SSL_set_accept_state(s);
932 return(s->method->ssl_accept(s));
935 int SSL_connect(SSL *s)
937 if (s->handshake_func == 0)
938 /* Not properly initialized yet */
939 SSL_set_connect_state(s);
941 return(s->method->ssl_connect(s));
944 long SSL_get_default_timeout(const SSL *s)
946 return(s->method->get_timeout());
949 int SSL_read(SSL *s,void *buf,int num)
951 if (s->handshake_func == 0)
953 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
957 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
959 s->rwstate=SSL_NOTHING;
962 return(s->method->ssl_read(s,buf,num));
965 int SSL_peek(SSL *s,void *buf,int num)
967 if (s->handshake_func == 0)
969 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
973 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
977 return(s->method->ssl_peek(s,buf,num));
980 int SSL_write(SSL *s,const void *buf,int num)
982 if (s->handshake_func == 0)
984 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
988 if (s->shutdown & SSL_SENT_SHUTDOWN)
990 s->rwstate=SSL_NOTHING;
991 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
994 return(s->method->ssl_write(s,buf,num));
997 int SSL_shutdown(SSL *s)
999 /* Note that this function behaves differently from what one might
1000 * expect. Return values are 0 for no success (yet),
1001 * 1 for success; but calling it once is usually not enough,
1002 * even if blocking I/O is used (see ssl3_shutdown).
1005 if (s->handshake_func == 0)
1007 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1011 if ((s != NULL) && !SSL_in_init(s))
1012 return(s->method->ssl_shutdown(s));
1017 int SSL_renegotiate(SSL *s)
1019 if (s->renegotiate == 0)
1024 return(s->method->ssl_renegotiate(s));
1027 int SSL_renegotiate_abbreviated(SSL *s)
1029 if (s->renegotiate == 0)
1034 return(s->method->ssl_renegotiate(s));
1037 int SSL_renegotiate_pending(SSL *s)
1039 /* becomes true when negotiation is requested;
1040 * false again once a handshake has finished */
1041 return (s->renegotiate != 0);
1044 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1050 case SSL_CTRL_GET_READ_AHEAD:
1051 return(s->read_ahead);
1052 case SSL_CTRL_SET_READ_AHEAD:
1057 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1058 s->msg_callback_arg = parg;
1061 case SSL_CTRL_OPTIONS:
1062 return(s->options|=larg);
1063 case SSL_CTRL_CLEAR_OPTIONS:
1064 return(s->options&=~larg);
1066 return(s->mode|=larg);
1067 case SSL_CTRL_CLEAR_MODE:
1068 return(s->mode &=~larg);
1069 case SSL_CTRL_GET_MAX_CERT_LIST:
1070 return(s->max_cert_list);
1071 case SSL_CTRL_SET_MAX_CERT_LIST:
1073 s->max_cert_list=larg;
1075 case SSL_CTRL_SET_MTU:
1076 if (larg < (long)dtls1_min_mtu())
1079 if (SSL_version(s) == DTLS1_VERSION ||
1080 SSL_version(s) == DTLS1_BAD_VER)
1086 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1087 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1089 s->max_send_fragment = larg;
1091 case SSL_CTRL_GET_RI_SUPPORT:
1093 return s->s3->send_connection_binding;
1096 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1100 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1104 case SSL_CTRL_SET_MSG_CALLBACK:
1105 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1109 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1113 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1115 return ctx->sessions;
1118 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1124 case SSL_CTRL_GET_READ_AHEAD:
1125 return(ctx->read_ahead);
1126 case SSL_CTRL_SET_READ_AHEAD:
1128 ctx->read_ahead=larg;
1131 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1132 ctx->msg_callback_arg = parg;
1135 case SSL_CTRL_GET_MAX_CERT_LIST:
1136 return(ctx->max_cert_list);
1137 case SSL_CTRL_SET_MAX_CERT_LIST:
1138 l=ctx->max_cert_list;
1139 ctx->max_cert_list=larg;
1142 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1143 l=ctx->session_cache_size;
1144 ctx->session_cache_size=larg;
1146 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1147 return(ctx->session_cache_size);
1148 case SSL_CTRL_SET_SESS_CACHE_MODE:
1149 l=ctx->session_cache_mode;
1150 ctx->session_cache_mode=larg;
1152 case SSL_CTRL_GET_SESS_CACHE_MODE:
1153 return(ctx->session_cache_mode);
1155 case SSL_CTRL_SESS_NUMBER:
1156 return(lh_SSL_SESSION_num_items(ctx->sessions));
1157 case SSL_CTRL_SESS_CONNECT:
1158 return(ctx->stats.sess_connect);
1159 case SSL_CTRL_SESS_CONNECT_GOOD:
1160 return(ctx->stats.sess_connect_good);
1161 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1162 return(ctx->stats.sess_connect_renegotiate);
1163 case SSL_CTRL_SESS_ACCEPT:
1164 return(ctx->stats.sess_accept);
1165 case SSL_CTRL_SESS_ACCEPT_GOOD:
1166 return(ctx->stats.sess_accept_good);
1167 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1168 return(ctx->stats.sess_accept_renegotiate);
1169 case SSL_CTRL_SESS_HIT:
1170 return(ctx->stats.sess_hit);
1171 case SSL_CTRL_SESS_CB_HIT:
1172 return(ctx->stats.sess_cb_hit);
1173 case SSL_CTRL_SESS_MISSES:
1174 return(ctx->stats.sess_miss);
1175 case SSL_CTRL_SESS_TIMEOUTS:
1176 return(ctx->stats.sess_timeout);
1177 case SSL_CTRL_SESS_CACHE_FULL:
1178 return(ctx->stats.sess_cache_full);
1179 case SSL_CTRL_OPTIONS:
1180 return(ctx->options|=larg);
1181 case SSL_CTRL_CLEAR_OPTIONS:
1182 return(ctx->options&=~larg);
1184 return(ctx->mode|=larg);
1185 case SSL_CTRL_CLEAR_MODE:
1186 return(ctx->mode&=~larg);
1187 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1188 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1190 ctx->max_send_fragment = larg;
1193 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1197 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1201 case SSL_CTRL_SET_MSG_CALLBACK:
1202 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1206 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1210 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1218 return((l > 0)?1:-1);
1221 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1222 const SSL_CIPHER * const *bp)
1226 l=(*ap)->id-(*bp)->id;
1230 return((l > 0)?1:-1);
1233 /** return a STACK of the ciphers available for the SSL and in order of
1235 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1239 if (s->cipher_list != NULL)
1241 return(s->cipher_list);
1243 else if ((s->ctx != NULL) &&
1244 (s->ctx->cipher_list != NULL))
1246 return(s->ctx->cipher_list);
1252 /** return a STACK of the ciphers available for the SSL and in order of
1254 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1258 if (s->cipher_list_by_id != NULL)
1260 return(s->cipher_list_by_id);
1262 else if ((s->ctx != NULL) &&
1263 (s->ctx->cipher_list_by_id != NULL))
1265 return(s->ctx->cipher_list_by_id);
1271 /** The old interface to get the same thing as SSL_get_ciphers() */
1272 const char *SSL_get_cipher_list(const SSL *s,int n)
1275 STACK_OF(SSL_CIPHER) *sk;
1277 if (s == NULL) return(NULL);
1278 sk=SSL_get_ciphers(s);
1279 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1281 c=sk_SSL_CIPHER_value(sk,n);
1282 if (c == NULL) return(NULL);
1286 /** specify the ciphers to be used by default by the SSL_CTX */
1287 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1289 STACK_OF(SSL_CIPHER) *sk;
1291 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1292 &ctx->cipher_list_by_id,str);
1293 /* ssl_create_cipher_list may return an empty stack if it
1294 * was unable to find a cipher matching the given rule string
1295 * (for example if the rule string specifies a cipher which
1296 * has been disabled). This is not an error as far as
1297 * ssl_create_cipher_list is concerned, and hence
1298 * ctx->cipher_list and ctx->cipher_list_by_id has been
1302 else if (sk_SSL_CIPHER_num(sk) == 0)
1304 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1310 /** specify the ciphers to be used by the SSL */
1311 int SSL_set_cipher_list(SSL *s,const char *str)
1313 STACK_OF(SSL_CIPHER) *sk;
1315 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1316 &s->cipher_list_by_id,str);
1317 /* see comment in SSL_CTX_set_cipher_list */
1320 else if (sk_SSL_CIPHER_num(sk) == 0)
1322 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1328 /* works well for SSLv2, not so good for SSLv3 */
1329 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1332 STACK_OF(SSL_CIPHER) *sk;
1336 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1341 sk=s->session->ciphers;
1342 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1346 c=sk_SSL_CIPHER_value(sk,i);
1364 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1365 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1370 #ifndef OPENSSL_NO_KRB5
1371 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1372 #endif /* OPENSSL_NO_KRB5 */
1374 if (sk == NULL) return(0);
1377 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1379 c=sk_SSL_CIPHER_value(sk,i);
1380 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
1381 if ((c->algorithm_ssl & SSL_TLSV1_2) &&
1382 (TLS1_get_client_version(s) < TLS1_2_VERSION))
1384 #ifndef OPENSSL_NO_KRB5
1385 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1388 #endif /* OPENSSL_NO_KRB5 */
1389 #ifndef OPENSSL_NO_PSK
1390 /* with PSK there must be client callback set */
1391 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1392 s->psk_client_callback == NULL)
1394 #endif /* OPENSSL_NO_PSK */
1395 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1398 /* If p == q, no ciphers and caller indicates an error. Otherwise
1399 * add SCSV if not renegotiating.
1401 if (p != q && !s->renegotiate)
1403 static SSL_CIPHER scsv =
1405 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1407 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1409 #ifdef OPENSSL_RI_DEBUG
1410 fprintf(stderr, "SCSV sent by client\n");
1417 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1418 STACK_OF(SSL_CIPHER) **skp)
1420 const SSL_CIPHER *c;
1421 STACK_OF(SSL_CIPHER) *sk;
1424 s->s3->send_connection_binding = 0;
1426 n=ssl_put_cipher_by_char(s,NULL,NULL);
1429 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1432 if ((skp == NULL) || (*skp == NULL))
1433 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1437 sk_SSL_CIPHER_zero(sk);
1440 for (i=0; i<num; i+=n)
1442 /* Check for SCSV */
1443 if (s->s3 && (n != 3 || !p[0]) &&
1444 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1445 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1447 /* SCSV fatal if renegotiating */
1450 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1451 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1454 s->s3->send_connection_binding = 1;
1456 #ifdef OPENSSL_RI_DEBUG
1457 fprintf(stderr, "SCSV received by server\n");
1462 c=ssl_get_cipher_by_char(s,p);
1466 if (!sk_SSL_CIPHER_push(sk,c))
1468 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1478 if ((skp == NULL) || (*skp == NULL))
1479 sk_SSL_CIPHER_free(sk);
1484 #ifndef OPENSSL_NO_TLSEXT
1485 /** return a servername extension value if provided in Client Hello, or NULL.
1486 * So far, only host_name types are defined (RFC 3546).
1489 const char *SSL_get_servername(const SSL *s, const int type)
1491 if (type != TLSEXT_NAMETYPE_host_name)
1494 return s->session && !s->tlsext_hostname ?
1495 s->session->tlsext_hostname :
1499 int SSL_get_servername_type(const SSL *s)
1501 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1502 return TLSEXT_NAMETYPE_host_name;
1506 # ifndef OPENSSL_NO_NEXTPROTONEG
1507 /* SSL_select_next_proto implements the standard protocol selection. It is
1508 * expected that this function is called from the callback set by
1509 * SSL_CTX_set_next_proto_select_cb.
1511 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1512 * strings. The length byte itself is not included in the length. A byte
1513 * string of length 0 is invalid. No byte string may be truncated.
1515 * The current, but experimental algorithm for selecting the protocol is:
1517 * 1) If the server doesn't support NPN then this is indicated to the
1518 * callback. In this case, the client application has to abort the connection
1519 * or have a default application level protocol.
1521 * 2) If the server supports NPN, but advertises an empty list then the
1522 * client selects the first protcol in its list, but indicates via the
1523 * API that this fallback case was enacted.
1525 * 3) Otherwise, the client finds the first protocol in the server's list
1526 * that it supports and selects this protocol. This is because it's
1527 * assumed that the server has better information about which protocol
1528 * a client should use.
1530 * 4) If the client doesn't support any of the server's advertised
1531 * protocols, then this is treated the same as case 2.
1534 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1535 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1537 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)
1540 const unsigned char *result;
1541 int status = OPENSSL_NPN_UNSUPPORTED;
1543 /* For each protocol in server preference order, see if we support it. */
1544 for (i = 0; i < server_len; )
1546 for (j = 0; j < client_len; )
1548 if (server[i] == client[j] &&
1549 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1551 /* We found a match */
1552 result = &server[i];
1553 status = OPENSSL_NPN_NEGOTIATED;
1563 /* There's no overlap between our protocols and the server's list. */
1565 status = OPENSSL_NPN_NO_OVERLAP;
1568 *out = (unsigned char *) result + 1;
1569 *outlen = result[0];
1573 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1574 * requested protocol for this connection and returns 0. If the client didn't
1575 * request any protocol, then *data is set to NULL.
1577 * Note that the client can request any protocol it chooses. The value returned
1578 * from this function need not be a member of the list of supported protocols
1579 * provided by the callback.
1581 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1583 *data = s->next_proto_negotiated;
1587 *len = s->next_proto_negotiated_len;
1591 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1592 * TLS server needs a list of supported protocols for Next Protocol
1593 * Negotiation. The returned list must be in wire format. The list is returned
1594 * by setting |out| to point to it and |outlen| to its length. This memory will
1595 * not be modified, but one should assume that the SSL* keeps a reference to
1598 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1599 * such extension will be included in the ServerHello. */
1600 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)
1602 ctx->next_protos_advertised_cb = cb;
1603 ctx->next_protos_advertised_cb_arg = arg;
1606 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1607 * client needs to select a protocol from the server's provided list. |out|
1608 * must be set to point to the selected protocol (which may be within |in|).
1609 * The length of the protocol name must be written into |outlen|. The server's
1610 * advertised protocols are provided in |in| and |inlen|. The callback can
1611 * assume that |in| is syntactically valid.
1613 * The client must select a protocol. It is fatal to the connection if this
1614 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1616 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)
1618 ctx->next_proto_select_cb = cb;
1619 ctx->next_proto_select_cb_arg = arg;
1624 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1629 ((unsigned int) a->session_id[0] )|
1630 ((unsigned int) a->session_id[1]<< 8L)|
1631 ((unsigned long)a->session_id[2]<<16L)|
1632 ((unsigned long)a->session_id[3]<<24L);
1636 /* NB: If this function (or indeed the hash function which uses a sort of
1637 * coarser function than this one) is changed, ensure
1638 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1639 * able to construct an SSL_SESSION that will collide with any existing session
1640 * with a matching session ID. */
1641 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1643 if (a->ssl_version != b->ssl_version)
1645 if (a->session_id_length != b->session_id_length)
1647 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1650 /* These wrapper functions should remain rather than redeclaring
1651 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1652 * variable. The reason is that the functions aren't static, they're exposed via
1654 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1655 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1657 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1663 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1668 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1670 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1675 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1677 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1680 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1684 memset(ret,0,sizeof(SSL_CTX));
1688 ret->cert_store=NULL;
1689 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1690 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1691 ret->session_cache_head=NULL;
1692 ret->session_cache_tail=NULL;
1694 /* We take the system default */
1695 ret->session_timeout=meth->get_timeout();
1697 ret->new_session_cb=0;
1698 ret->remove_session_cb=0;
1699 ret->get_session_cb=0;
1700 ret->generate_session_id=0;
1702 memset((char *)&ret->stats,0,sizeof(ret->stats));
1705 ret->quiet_shutdown=0;
1707 /* ret->cipher=NULL;*/
1708 /* ret->s2->challenge=NULL;
1709 ret->master_key=NULL;
1711 ret->s2->conn_id=NULL; */
1713 ret->info_callback=NULL;
1715 ret->app_verify_callback=0;
1716 ret->app_verify_arg=NULL;
1718 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1720 ret->msg_callback=0;
1721 ret->msg_callback_arg=NULL;
1722 ret->verify_mode=SSL_VERIFY_NONE;
1724 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1726 ret->sid_ctx_length=0;
1727 ret->default_verify_callback=NULL;
1728 if ((ret->cert=ssl_cert_new()) == NULL)
1731 ret->default_passwd_callback=0;
1732 ret->default_passwd_callback_userdata=NULL;
1733 ret->client_cert_cb=0;
1734 ret->app_gen_cookie_cb=0;
1735 ret->app_verify_cookie_cb=0;
1737 ret->sessions=lh_SSL_SESSION_new();
1738 if (ret->sessions == NULL) goto err;
1739 ret->cert_store=X509_STORE_new();
1740 if (ret->cert_store == NULL) goto err;
1742 ssl_create_cipher_list(ret->method,
1743 &ret->cipher_list,&ret->cipher_list_by_id,
1744 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
1745 if (ret->cipher_list == NULL
1746 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1748 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1752 ret->param = X509_VERIFY_PARAM_new();
1756 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1758 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1761 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1763 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1766 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1768 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1772 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1775 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1777 ret->extra_certs=NULL;
1778 ret->comp_methods=SSL_COMP_get_compression_methods();
1780 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1782 #ifndef OPENSSL_NO_TLSEXT
1783 ret->tlsext_servername_callback = 0;
1784 ret->tlsext_servername_arg = NULL;
1785 /* Setup RFC4507 ticket keys */
1786 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1787 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1788 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1789 ret->options |= SSL_OP_NO_TICKET;
1791 ret->tlsext_status_cb = 0;
1792 ret->tlsext_status_arg = NULL;
1794 # ifndef OPENSSL_NO_NEXTPROTONEG
1795 ret->next_protos_advertised_cb = 0;
1796 ret->next_proto_select_cb = 0;
1799 #ifndef OPENSSL_NO_PSK
1800 ret->psk_identity_hint=NULL;
1801 ret->psk_client_callback=NULL;
1802 ret->psk_server_callback=NULL;
1804 #ifndef OPENSSL_NO_SRP
1805 SSL_CTX_SRP_CTX_init(ret);
1807 #ifndef OPENSSL_NO_BUF_FREELISTS
1808 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1809 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1810 if (!ret->rbuf_freelist)
1812 ret->rbuf_freelist->chunklen = 0;
1813 ret->rbuf_freelist->len = 0;
1814 ret->rbuf_freelist->head = NULL;
1815 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1816 if (!ret->wbuf_freelist)
1818 OPENSSL_free(ret->rbuf_freelist);
1821 ret->wbuf_freelist->chunklen = 0;
1822 ret->wbuf_freelist->len = 0;
1823 ret->wbuf_freelist->head = NULL;
1825 #ifndef OPENSSL_NO_ENGINE
1826 ret->client_cert_engine = NULL;
1827 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1828 #define eng_strx(x) #x
1829 #define eng_str(x) eng_strx(x)
1830 /* Use specific client engine automatically... ignore errors */
1833 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1837 ENGINE_load_builtin_engines();
1838 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1840 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1845 /* Default is to connect to non-RI servers. When RI is more widely
1846 * deployed might change this.
1848 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1852 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1854 if (ret != NULL) SSL_CTX_free(ret);
1859 static void SSL_COMP_free(SSL_COMP *comp)
1860 { OPENSSL_free(comp); }
1863 #ifndef OPENSSL_NO_BUF_FREELISTS
1865 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1867 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1868 for (ent = list->head; ent; ent = next)
1877 void SSL_CTX_free(SSL_CTX *a)
1881 if (a == NULL) return;
1883 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1885 REF_PRINT("SSL_CTX",a);
1891 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1897 X509_VERIFY_PARAM_free(a->param);
1900 * Free internal session cache. However: the remove_cb() may reference
1901 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1902 * after the sessions were flushed.
1903 * As the ex_data handling routines might also touch the session cache,
1904 * the most secure solution seems to be: empty (flush) the cache, then
1905 * free ex_data, then finally free the cache.
1906 * (See ticket [openssl.org #212].)
1908 if (a->sessions != NULL)
1909 SSL_CTX_flush_sessions(a,0);
1911 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1913 if (a->sessions != NULL)
1914 lh_SSL_SESSION_free(a->sessions);
1916 if (a->cert_store != NULL)
1917 X509_STORE_free(a->cert_store);
1918 if (a->cipher_list != NULL)
1919 sk_SSL_CIPHER_free(a->cipher_list);
1920 if (a->cipher_list_by_id != NULL)
1921 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1922 if (a->cert != NULL)
1923 ssl_cert_free(a->cert);
1924 if (a->client_CA != NULL)
1925 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1926 if (a->extra_certs != NULL)
1927 sk_X509_pop_free(a->extra_certs,X509_free);
1928 #if 0 /* This should never be done, since it removes a global database */
1929 if (a->comp_methods != NULL)
1930 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1932 a->comp_methods = NULL;
1935 #ifndef OPENSSL_NO_PSK
1936 if (a->psk_identity_hint)
1937 OPENSSL_free(a->psk_identity_hint);
1939 #ifndef OPENSSL_NO_SRP
1940 SSL_CTX_SRP_CTX_free(a);
1942 #ifndef OPENSSL_NO_ENGINE
1943 if (a->client_cert_engine)
1944 ENGINE_finish(a->client_cert_engine);
1947 #ifndef OPENSSL_NO_BUF_FREELISTS
1948 if (a->wbuf_freelist)
1949 ssl_buf_freelist_free(a->wbuf_freelist);
1950 if (a->rbuf_freelist)
1951 ssl_buf_freelist_free(a->rbuf_freelist);
1957 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1959 ctx->default_passwd_callback=cb;
1962 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1964 ctx->default_passwd_callback_userdata=u;
1967 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1969 ctx->app_verify_callback=cb;
1970 ctx->app_verify_arg=arg;
1973 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1975 ctx->verify_mode=mode;
1976 ctx->default_verify_callback=cb;
1979 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1981 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1984 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
1987 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1988 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1989 int rsa_tmp_export,dh_tmp_export,kl;
1990 unsigned long mask_k,mask_a,emask_k,emask_a;
1991 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1992 #ifndef OPENSSL_NO_ECDH
1996 EVP_PKEY *ecc_pkey = NULL;
1997 int signature_nid = 0, pk_nid = 0, md_nid = 0;
1999 if (c == NULL) return;
2001 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2003 #ifndef OPENSSL_NO_RSA
2004 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2005 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2006 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2008 rsa_tmp=rsa_tmp_export=0;
2010 #ifndef OPENSSL_NO_DH
2011 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2012 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2013 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2015 dh_tmp=dh_tmp_export=0;
2018 #ifndef OPENSSL_NO_ECDH
2019 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
2021 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2022 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
2023 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2024 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2025 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2026 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2027 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2028 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2029 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2030 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2031 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2032 /* FIX THIS EAY EAY EAY */
2033 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2034 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2035 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2036 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
2045 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2046 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2047 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2050 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2051 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2052 mask_k |= SSL_kGOST;
2053 mask_a |= SSL_aGOST01;
2055 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2056 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2057 mask_k |= SSL_kGOST;
2058 mask_a |= SSL_aGOST94;
2061 if (rsa_enc || (rsa_tmp && rsa_sign))
2063 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2067 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2068 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2069 (rsa_enc || rsa_sign || dsa_sign))
2071 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2072 (rsa_enc || rsa_sign || dsa_sign))
2082 if (dh_rsa) mask_k|=SSL_kDHr;
2083 if (dh_rsa_export) emask_k|=SSL_kDHr;
2085 if (dh_dsa) mask_k|=SSL_kDHd;
2086 if (dh_dsa_export) emask_k|=SSL_kDHd;
2088 if (rsa_enc || rsa_sign)
2103 #ifndef OPENSSL_NO_KRB5
2110 /* An ECC certificate may be usable for ECDH and/or
2111 * ECDSA cipher suites depending on the key usage extension.
2115 /* This call populates extension flags (ex_flags) */
2116 x = (c->pkeys[SSL_PKEY_ECC]).x509;
2117 X509_check_purpose(x, -1, 0);
2118 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2119 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2120 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2121 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2122 ecc_pkey = X509_get_pubkey(x);
2123 ecc_pkey_size = (ecc_pkey != NULL) ?
2124 EVP_PKEY_bits(ecc_pkey) : 0;
2125 EVP_PKEY_free(ecc_pkey);
2126 if ((x->sig_alg) && (x->sig_alg->algorithm))
2128 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2129 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2131 #ifndef OPENSSL_NO_ECDH
2135 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2139 if (ecc_pkey_size <= 163)
2141 emask_k|=SSL_kECDHr;
2146 if (pk_nid == NID_X9_62_id_ecPublicKey)
2150 if (ecc_pkey_size <= 163)
2152 emask_k|=SSL_kECDHe;
2158 #ifndef OPENSSL_NO_ECDSA
2162 emask_a|=SSL_aECDSA;
2167 #ifndef OPENSSL_NO_ECDH
2171 emask_k|=SSL_kEECDH;
2175 #ifndef OPENSSL_NO_PSK
2178 emask_k |= SSL_kPSK;
2179 emask_a |= SSL_aPSK;
2184 c->export_mask_k=emask_k;
2185 c->export_mask_a=emask_a;
2189 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2190 #define ku_reject(x, usage) \
2191 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2193 #ifndef OPENSSL_NO_EC
2195 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2197 unsigned long alg_k, alg_a;
2198 EVP_PKEY *pkey = NULL;
2200 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2201 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2203 alg_k = cs->algorithm_mkey;
2204 alg_a = cs->algorithm_auth;
2206 if (SSL_C_IS_EXPORT(cs))
2208 /* ECDH key length in export ciphers must be <= 163 bits */
2209 pkey = X509_get_pubkey(x);
2210 if (pkey == NULL) return 0;
2211 keysize = EVP_PKEY_bits(pkey);
2212 EVP_PKEY_free(pkey);
2213 if (keysize > 163) return 0;
2216 /* This call populates the ex_flags field correctly */
2217 X509_check_purpose(x, -1, 0);
2218 if ((x->sig_alg) && (x->sig_alg->algorithm))
2220 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2221 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2223 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2225 /* key usage, if present, must allow key agreement */
2226 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2228 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2231 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2233 /* signature alg must be ECDSA */
2234 if (pk_nid != NID_X9_62_id_ecPublicKey)
2236 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2240 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2242 /* signature alg must be RSA */
2244 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2246 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2251 if (alg_a & SSL_aECDSA)
2253 /* key usage, if present, must allow signing */
2254 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2256 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2261 return 1; /* all checks are ok */
2266 /* THIS NEEDS CLEANING UP */
2267 X509 *ssl_get_server_send_cert(SSL *s)
2269 unsigned long alg_k,alg_a;
2274 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2276 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2277 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2279 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2281 /* we don't need to look at SSL_kEECDH
2282 * since no certificate is needed for
2283 * anon ECDH and for authenticated
2284 * EECDH, the check for the auth
2285 * algorithm will set i correctly
2286 * NOTE: For ECDH-RSA, we need an ECC
2287 * not an RSA cert but for EECDH-RSA
2288 * we need an RSA cert. Placing the
2289 * checks for SSL_kECDH before RSA
2290 * checks ensures the correct cert is chosen.
2294 else if (alg_a & SSL_aECDSA)
2298 else if (alg_k & SSL_kDHr)
2300 else if (alg_k & SSL_kDHd)
2302 else if (alg_a & SSL_aDSS)
2303 i=SSL_PKEY_DSA_SIGN;
2304 else if (alg_a & SSL_aRSA)
2306 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2307 i=SSL_PKEY_RSA_SIGN;
2311 else if (alg_a & SSL_aKRB5)
2313 /* VRS something else here? */
2316 else if (alg_a & SSL_aGOST94)
2318 else if (alg_a & SSL_aGOST01)
2320 else /* if (alg_a & SSL_aNULL) */
2322 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2325 if (c->pkeys[i].x509 == NULL) return(NULL);
2327 return(c->pkeys[i].x509);
2330 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2332 unsigned long alg_a;
2336 alg_a = cipher->algorithm_auth;
2339 if ((alg_a & SSL_aDSS) &&
2340 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2341 idx = SSL_PKEY_DSA_SIGN;
2342 else if (alg_a & SSL_aRSA)
2344 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2345 idx = SSL_PKEY_RSA_SIGN;
2346 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2347 idx = SSL_PKEY_RSA_ENC;
2349 else if ((alg_a & SSL_aECDSA) &&
2350 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2354 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2358 *pmd = c->pkeys[idx].digest;
2359 return c->pkeys[idx].privatekey;
2362 void ssl_update_cache(SSL *s,int mode)
2366 /* If the session_id_length is 0, we are not supposed to cache it,
2367 * and it would be rather hard to do anyway :-) */
2368 if (s->session->session_id_length == 0) return;
2370 i=s->session_ctx->session_cache_mode;
2371 if ((i & mode) && (!s->hit)
2372 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2373 || SSL_CTX_add_session(s->session_ctx,s->session))
2374 && (s->session_ctx->new_session_cb != NULL))
2376 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2377 if (!s->session_ctx->new_session_cb(s,s->session))
2378 SSL_SESSION_free(s->session);
2381 /* auto flush every 255 connections */
2382 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2383 ((i & mode) == mode))
2385 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2386 ?s->session_ctx->stats.sess_connect_good
2387 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2389 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2394 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2399 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2404 if (s->method != meth)
2406 if (s->handshake_func != NULL)
2407 conn=(s->handshake_func == s->method->ssl_connect);
2409 if (s->method->version == meth->version)
2413 s->method->ssl_free(s);
2415 ret=s->method->ssl_new(s);
2419 s->handshake_func=meth->ssl_connect;
2421 s->handshake_func=meth->ssl_accept;
2426 int SSL_get_error(const SSL *s,int i)
2432 if (i > 0) return(SSL_ERROR_NONE);
2434 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2435 * etc, where we do encode the error */
2436 if ((l=ERR_peek_error()) != 0)
2438 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2439 return(SSL_ERROR_SYSCALL);
2441 return(SSL_ERROR_SSL);
2444 if ((i < 0) && SSL_want_read(s))
2446 bio=SSL_get_rbio(s);
2447 if (BIO_should_read(bio))
2448 return(SSL_ERROR_WANT_READ);
2449 else if (BIO_should_write(bio))
2450 /* This one doesn't make too much sense ... We never try
2451 * to write to the rbio, and an application program where
2452 * rbio and wbio are separate couldn't even know what it
2454 * However if we ever set s->rwstate incorrectly
2455 * (so that we have SSL_want_read(s) instead of
2456 * SSL_want_write(s)) and rbio and wbio *are* the same,
2457 * this test works around that bug; so it might be safer
2459 return(SSL_ERROR_WANT_WRITE);
2460 else if (BIO_should_io_special(bio))
2462 reason=BIO_get_retry_reason(bio);
2463 if (reason == BIO_RR_CONNECT)
2464 return(SSL_ERROR_WANT_CONNECT);
2465 else if (reason == BIO_RR_ACCEPT)
2466 return(SSL_ERROR_WANT_ACCEPT);
2468 return(SSL_ERROR_SYSCALL); /* unknown */
2472 if ((i < 0) && SSL_want_write(s))
2474 bio=SSL_get_wbio(s);
2475 if (BIO_should_write(bio))
2476 return(SSL_ERROR_WANT_WRITE);
2477 else if (BIO_should_read(bio))
2478 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2479 return(SSL_ERROR_WANT_READ);
2480 else if (BIO_should_io_special(bio))
2482 reason=BIO_get_retry_reason(bio);
2483 if (reason == BIO_RR_CONNECT)
2484 return(SSL_ERROR_WANT_CONNECT);
2485 else if (reason == BIO_RR_ACCEPT)
2486 return(SSL_ERROR_WANT_ACCEPT);
2488 return(SSL_ERROR_SYSCALL);
2491 if ((i < 0) && SSL_want_x509_lookup(s))
2493 return(SSL_ERROR_WANT_X509_LOOKUP);
2498 if (s->version == SSL2_VERSION)
2500 /* assume it is the socket being closed */
2501 return(SSL_ERROR_ZERO_RETURN);
2505 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2506 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2507 return(SSL_ERROR_ZERO_RETURN);
2510 return(SSL_ERROR_SYSCALL);
2513 int SSL_do_handshake(SSL *s)
2517 if (s->handshake_func == NULL)
2519 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2523 s->method->ssl_renegotiate_check(s);
2525 if (SSL_in_init(s) || SSL_in_before(s))
2527 ret=s->handshake_func(s);
2532 /* For the next 2 functions, SSL_clear() sets shutdown and so
2533 * one of these calls will reset it */
2534 void SSL_set_accept_state(SSL *s)
2538 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2539 s->handshake_func=s->method->ssl_accept;
2540 /* clear the current cipher */
2541 ssl_clear_cipher_ctx(s);
2542 ssl_clear_hash_ctx(&s->read_hash);
2543 ssl_clear_hash_ctx(&s->write_hash);
2546 void SSL_set_connect_state(SSL *s)
2550 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2551 s->handshake_func=s->method->ssl_connect;
2552 /* clear the current cipher */
2553 ssl_clear_cipher_ctx(s);
2554 ssl_clear_hash_ctx(&s->read_hash);
2555 ssl_clear_hash_ctx(&s->write_hash);
2558 int ssl_undefined_function(SSL *s)
2560 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2564 int ssl_undefined_void_function(void)
2566 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2570 int ssl_undefined_const_function(const SSL *s)
2572 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2576 SSL_METHOD *ssl_bad_method(int ver)
2578 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2582 const char *SSL_get_version(const SSL *s)
2584 if (s->version == TLS1_2_VERSION)
2586 else if (s->version == TLS1_1_VERSION)
2588 if (s->version == TLS1_VERSION)
2590 else if (s->version == SSL3_VERSION)
2592 else if (s->version == SSL2_VERSION)
2598 SSL *SSL_dup(SSL *s)
2600 STACK_OF(X509_NAME) *sk;
2605 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2608 ret->version = s->version;
2609 ret->type = s->type;
2610 ret->method = s->method;
2612 if (s->session != NULL)
2614 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2615 SSL_copy_session_id(ret,s);
2619 /* No session has been established yet, so we have to expect
2620 * that s->cert or ret->cert will be changed later --
2621 * they should not both point to the same object,
2622 * and thus we can't use SSL_copy_session_id. */
2624 ret->method->ssl_free(ret);
2625 ret->method = s->method;
2626 ret->method->ssl_new(ret);
2628 if (s->cert != NULL)
2630 if (ret->cert != NULL)
2632 ssl_cert_free(ret->cert);
2634 ret->cert = ssl_cert_dup(s->cert);
2635 if (ret->cert == NULL)
2639 SSL_set_session_id_context(ret,
2640 s->sid_ctx, s->sid_ctx_length);
2643 ret->options=s->options;
2645 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2646 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2647 ret->msg_callback = s->msg_callback;
2648 ret->msg_callback_arg = s->msg_callback_arg;
2649 SSL_set_verify(ret,SSL_get_verify_mode(s),
2650 SSL_get_verify_callback(s));
2651 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2652 ret->generate_session_id = s->generate_session_id;
2654 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2656 ret->debug=s->debug;
2658 /* copy app data, a little dangerous perhaps */
2659 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2662 /* setup rbio, and wbio */
2663 if (s->rbio != NULL)
2665 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2668 if (s->wbio != NULL)
2670 if (s->wbio != s->rbio)
2672 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2676 ret->wbio=ret->rbio;
2678 ret->rwstate = s->rwstate;
2679 ret->in_handshake = s->in_handshake;
2680 ret->handshake_func = s->handshake_func;
2681 ret->server = s->server;
2682 ret->renegotiate = s->renegotiate;
2683 ret->new_session = s->new_session;
2684 ret->quiet_shutdown = s->quiet_shutdown;
2685 ret->shutdown=s->shutdown;
2686 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2687 ret->rstate=s->rstate;
2688 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2691 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2693 /* dup the cipher_list and cipher_list_by_id stacks */
2694 if (s->cipher_list != NULL)
2696 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2699 if (s->cipher_list_by_id != NULL)
2700 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2704 /* Dup the client_CA list */
2705 if (s->client_CA != NULL)
2707 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2709 for (i=0; i<sk_X509_NAME_num(sk); i++)
2711 xn=sk_X509_NAME_value(sk,i);
2712 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2723 if (ret != NULL) SSL_free(ret);
2729 void ssl_clear_cipher_ctx(SSL *s)
2731 if (s->enc_read_ctx != NULL)
2733 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2734 OPENSSL_free(s->enc_read_ctx);
2735 s->enc_read_ctx=NULL;
2737 if (s->enc_write_ctx != NULL)
2739 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2740 OPENSSL_free(s->enc_write_ctx);
2741 s->enc_write_ctx=NULL;
2743 #ifndef OPENSSL_NO_COMP
2744 if (s->expand != NULL)
2746 COMP_CTX_free(s->expand);
2749 if (s->compress != NULL)
2751 COMP_CTX_free(s->compress);
2757 /* Fix this function so that it takes an optional type parameter */
2758 X509 *SSL_get_certificate(const SSL *s)
2760 if (s->cert != NULL)
2761 return(s->cert->key->x509);
2766 /* Fix this function so that it takes an optional type parameter */
2767 EVP_PKEY *SSL_get_privatekey(SSL *s)
2769 if (s->cert != NULL)
2770 return(s->cert->key->privatekey);
2775 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2777 if ((s->session != NULL) && (s->session->cipher != NULL))
2778 return(s->session->cipher);
2781 #ifdef OPENSSL_NO_COMP
2782 const void *SSL_get_current_compression(SSL *s)
2786 const void *SSL_get_current_expansion(SSL *s)
2792 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2794 if (s->compress != NULL)
2795 return(s->compress->meth);
2799 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2801 if (s->expand != NULL)
2802 return(s->expand->meth);
2807 int ssl_init_wbio_buffer(SSL *s,int push)
2811 if (s->bbio == NULL)
2813 bbio=BIO_new(BIO_f_buffer());
2814 if (bbio == NULL) return(0);
2820 if (s->bbio == s->wbio)
2821 s->wbio=BIO_pop(s->wbio);
2823 (void)BIO_reset(bbio);
2824 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2825 if (!BIO_set_read_buffer_size(bbio,1))
2827 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2832 if (s->wbio != bbio)
2833 s->wbio=BIO_push(bbio,s->wbio);
2837 if (s->wbio == bbio)
2838 s->wbio=BIO_pop(bbio);
2843 void ssl_free_wbio_buffer(SSL *s)
2845 if (s->bbio == NULL) return;
2847 if (s->bbio == s->wbio)
2849 /* remove buffering */
2850 s->wbio=BIO_pop(s->wbio);
2851 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2852 assert(s->wbio != NULL);
2859 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2861 ctx->quiet_shutdown=mode;
2864 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2866 return(ctx->quiet_shutdown);
2869 void SSL_set_quiet_shutdown(SSL *s,int mode)
2871 s->quiet_shutdown=mode;
2874 int SSL_get_quiet_shutdown(const SSL *s)
2876 return(s->quiet_shutdown);
2879 void SSL_set_shutdown(SSL *s,int mode)
2884 int SSL_get_shutdown(const SSL *s)
2886 return(s->shutdown);
2889 int SSL_version(const SSL *s)
2894 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2899 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2901 if (ssl->ctx == ctx)
2903 #ifndef OPENSSL_NO_TLSEXT
2905 ctx = ssl->initial_ctx;
2907 if (ssl->cert != NULL)
2908 ssl_cert_free(ssl->cert);
2909 ssl->cert = ssl_cert_dup(ctx->cert);
2910 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2911 if (ssl->ctx != NULL)
2912 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2917 #ifndef OPENSSL_NO_STDIO
2918 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2920 return(X509_STORE_set_default_paths(ctx->cert_store));
2923 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2926 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2930 void SSL_set_info_callback(SSL *ssl,
2931 void (*cb)(const SSL *ssl,int type,int val))
2933 ssl->info_callback=cb;
2936 /* One compiler (Diab DCC) doesn't like argument names in returned
2937 function pointer. */
2938 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2940 return ssl->info_callback;
2943 int SSL_state(const SSL *ssl)
2948 void SSL_set_state(SSL *ssl, int state)
2953 void SSL_set_verify_result(SSL *ssl,long arg)
2955 ssl->verify_result=arg;
2958 long SSL_get_verify_result(const SSL *ssl)
2960 return(ssl->verify_result);
2963 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2964 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2966 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2967 new_func, dup_func, free_func);
2970 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2972 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2975 void *SSL_get_ex_data(const SSL *s,int idx)
2977 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2980 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2981 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2983 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2984 new_func, dup_func, free_func);
2987 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2989 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2992 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2994 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3002 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3004 return(ctx->cert_store);
3007 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3009 if (ctx->cert_store != NULL)
3010 X509_STORE_free(ctx->cert_store);
3011 ctx->cert_store=store;
3014 int SSL_want(const SSL *s)
3020 * \brief Set the callback for generating temporary RSA keys.
3021 * \param ctx the SSL context.
3022 * \param cb the callback
3025 #ifndef OPENSSL_NO_RSA
3026 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3030 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3033 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3037 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3043 * \brief The RSA temporary key callback function.
3044 * \param ssl the SSL session.
3045 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3046 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3047 * of the required key in bits.
3048 * \return the temporary RSA key.
3049 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3052 RSA *cb(SSL *ssl,int is_export,int keylength)
3057 * \brief Set the callback for generating temporary DH keys.
3058 * \param ctx the SSL context.
3059 * \param dh the callback
3062 #ifndef OPENSSL_NO_DH
3063 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3066 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3069 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3072 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3076 #ifndef OPENSSL_NO_ECDH
3077 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3080 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3083 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3086 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3090 #ifndef OPENSSL_NO_PSK
3091 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3093 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3095 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3098 if (ctx->psk_identity_hint != NULL)
3099 OPENSSL_free(ctx->psk_identity_hint);
3100 if (identity_hint != NULL)
3102 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3103 if (ctx->psk_identity_hint == NULL)
3107 ctx->psk_identity_hint = NULL;
3111 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3116 if (s->session == NULL)
3117 return 1; /* session not created yet, ignored */
3119 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3121 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3124 if (s->session->psk_identity_hint != NULL)
3125 OPENSSL_free(s->session->psk_identity_hint);
3126 if (identity_hint != NULL)
3128 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3129 if (s->session->psk_identity_hint == NULL)
3133 s->session->psk_identity_hint = NULL;
3137 const char *SSL_get_psk_identity_hint(const SSL *s)
3139 if (s == NULL || s->session == NULL)
3141 return(s->session->psk_identity_hint);
3144 const char *SSL_get_psk_identity(const SSL *s)
3146 if (s == NULL || s->session == NULL)
3148 return(s->session->psk_identity);
3151 void SSL_set_psk_client_callback(SSL *s,
3152 unsigned int (*cb)(SSL *ssl, const char *hint,
3153 char *identity, unsigned int max_identity_len, unsigned char *psk,
3154 unsigned int max_psk_len))
3156 s->psk_client_callback = cb;
3159 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3160 unsigned int (*cb)(SSL *ssl, const char *hint,
3161 char *identity, unsigned int max_identity_len, unsigned char *psk,
3162 unsigned int max_psk_len))
3164 ctx->psk_client_callback = cb;
3167 void SSL_set_psk_server_callback(SSL *s,
3168 unsigned int (*cb)(SSL *ssl, const char *identity,
3169 unsigned char *psk, unsigned int max_psk_len))
3171 s->psk_server_callback = cb;
3174 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3175 unsigned int (*cb)(SSL *ssl, const char *identity,
3176 unsigned char *psk, unsigned int max_psk_len))
3178 ctx->psk_server_callback = cb;
3182 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))
3184 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3186 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))
3188 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3191 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3192 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3193 * any. If EVP_MD pointer is passed, initializes ctx with this md
3194 * Returns newly allocated ctx;
3197 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3199 ssl_clear_hash_ctx(hash);
3200 *hash = EVP_MD_CTX_create();
3201 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3204 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3207 if (*hash) EVP_MD_CTX_destroy(*hash);
3211 void SSL_set_debug(SSL *s, int debug)
3216 int SSL_cache_hit(SSL *s)
3221 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3222 #include "../crypto/bio/bss_file.c"
3225 IMPLEMENT_STACK_OF(SSL_CIPHER)
3226 IMPLEMENT_STACK_OF(SSL_COMP)
3227 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,