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())
1115 if (SSL_version(s) == DTLS1_VERSION ||
1116 SSL_version(s) == DTLS1_BAD_VER)
1122 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1123 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1125 s->max_send_fragment = larg;
1127 case SSL_CTRL_GET_RI_SUPPORT:
1129 return s->s3->send_connection_binding;
1131 case SSL_CTRL_CERT_FLAGS:
1132 return(s->cert->cert_flags|=larg);
1133 case SSL_CTRL_CLEAR_CERT_FLAGS:
1134 return(s->cert->cert_flags &=~larg);
1136 case SSL_CTRL_GET_RAW_CIPHERLIST:
1139 if (s->cert->ciphers_raw == NULL)
1141 *(unsigned char **)parg = s->cert->ciphers_raw;
1142 return (int)s->cert->ciphers_rawlen;
1145 return ssl_put_cipher_by_char(s,NULL,NULL);
1147 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1151 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1155 case SSL_CTRL_SET_MSG_CALLBACK:
1156 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1160 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1164 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1166 return ctx->sessions;
1169 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1175 case SSL_CTRL_GET_READ_AHEAD:
1176 return(ctx->read_ahead);
1177 case SSL_CTRL_SET_READ_AHEAD:
1179 ctx->read_ahead=larg;
1182 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1183 ctx->msg_callback_arg = parg;
1186 case SSL_CTRL_GET_MAX_CERT_LIST:
1187 return(ctx->max_cert_list);
1188 case SSL_CTRL_SET_MAX_CERT_LIST:
1189 l=ctx->max_cert_list;
1190 ctx->max_cert_list=larg;
1193 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1194 l=ctx->session_cache_size;
1195 ctx->session_cache_size=larg;
1197 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1198 return(ctx->session_cache_size);
1199 case SSL_CTRL_SET_SESS_CACHE_MODE:
1200 l=ctx->session_cache_mode;
1201 ctx->session_cache_mode=larg;
1203 case SSL_CTRL_GET_SESS_CACHE_MODE:
1204 return(ctx->session_cache_mode);
1206 case SSL_CTRL_SESS_NUMBER:
1207 return(lh_SSL_SESSION_num_items(ctx->sessions));
1208 case SSL_CTRL_SESS_CONNECT:
1209 return(ctx->stats.sess_connect);
1210 case SSL_CTRL_SESS_CONNECT_GOOD:
1211 return(ctx->stats.sess_connect_good);
1212 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1213 return(ctx->stats.sess_connect_renegotiate);
1214 case SSL_CTRL_SESS_ACCEPT:
1215 return(ctx->stats.sess_accept);
1216 case SSL_CTRL_SESS_ACCEPT_GOOD:
1217 return(ctx->stats.sess_accept_good);
1218 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1219 return(ctx->stats.sess_accept_renegotiate);
1220 case SSL_CTRL_SESS_HIT:
1221 return(ctx->stats.sess_hit);
1222 case SSL_CTRL_SESS_CB_HIT:
1223 return(ctx->stats.sess_cb_hit);
1224 case SSL_CTRL_SESS_MISSES:
1225 return(ctx->stats.sess_miss);
1226 case SSL_CTRL_SESS_TIMEOUTS:
1227 return(ctx->stats.sess_timeout);
1228 case SSL_CTRL_SESS_CACHE_FULL:
1229 return(ctx->stats.sess_cache_full);
1230 case SSL_CTRL_OPTIONS:
1231 return(ctx->options|=larg);
1232 case SSL_CTRL_CLEAR_OPTIONS:
1233 return(ctx->options&=~larg);
1235 return(ctx->mode|=larg);
1236 case SSL_CTRL_CLEAR_MODE:
1237 return(ctx->mode&=~larg);
1238 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1239 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1241 ctx->max_send_fragment = larg;
1243 case SSL_CTRL_CERT_FLAGS:
1244 return(ctx->cert->cert_flags|=larg);
1245 case SSL_CTRL_CLEAR_CERT_FLAGS:
1246 return(ctx->cert->cert_flags &=~larg);
1248 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1252 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1256 case SSL_CTRL_SET_MSG_CALLBACK:
1257 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1261 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1265 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1273 return((l > 0)?1:-1);
1276 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1277 const SSL_CIPHER * const *bp)
1281 l=(*ap)->id-(*bp)->id;
1285 return((l > 0)?1:-1);
1288 /** return a STACK of the ciphers available for the SSL and in order of
1290 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1294 if (s->cipher_list != NULL)
1296 return(s->cipher_list);
1298 else if ((s->ctx != NULL) &&
1299 (s->ctx->cipher_list != NULL))
1301 return(s->ctx->cipher_list);
1307 /** return a STACK of the ciphers available for the SSL and in order of
1309 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1313 if (s->cipher_list_by_id != NULL)
1315 return(s->cipher_list_by_id);
1317 else if ((s->ctx != NULL) &&
1318 (s->ctx->cipher_list_by_id != NULL))
1320 return(s->ctx->cipher_list_by_id);
1326 /** The old interface to get the same thing as SSL_get_ciphers() */
1327 const char *SSL_get_cipher_list(const SSL *s,int n)
1330 STACK_OF(SSL_CIPHER) *sk;
1332 if (s == NULL) return(NULL);
1333 sk=SSL_get_ciphers(s);
1334 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1336 c=sk_SSL_CIPHER_value(sk,n);
1337 if (c == NULL) return(NULL);
1341 /** specify the ciphers to be used by default by the SSL_CTX */
1342 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1344 STACK_OF(SSL_CIPHER) *sk;
1346 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1347 &ctx->cipher_list_by_id,str, ctx->cert);
1348 /* ssl_create_cipher_list may return an empty stack if it
1349 * was unable to find a cipher matching the given rule string
1350 * (for example if the rule string specifies a cipher which
1351 * has been disabled). This is not an error as far as
1352 * ssl_create_cipher_list is concerned, and hence
1353 * ctx->cipher_list and ctx->cipher_list_by_id has been
1357 else if (sk_SSL_CIPHER_num(sk) == 0)
1359 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1365 /** specify the ciphers to be used by the SSL */
1366 int SSL_set_cipher_list(SSL *s,const char *str)
1368 STACK_OF(SSL_CIPHER) *sk;
1370 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1371 &s->cipher_list_by_id,str, s->cert);
1372 /* see comment in SSL_CTX_set_cipher_list */
1375 else if (sk_SSL_CIPHER_num(sk) == 0)
1377 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1383 /* works well for SSLv2, not so good for SSLv3 */
1384 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1387 STACK_OF(SSL_CIPHER) *sk;
1391 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1396 sk=s->session->ciphers;
1397 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1401 c=sk_SSL_CIPHER_value(sk,i);
1419 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1420 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1426 /* Set disabled masks for this session */
1427 ssl_set_client_disabled(s);
1429 if (sk == NULL) return(0);
1432 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1434 c=sk_SSL_CIPHER_value(sk,i);
1435 /* Skip disabled ciphers */
1436 if (c->algorithm_ssl & ct->mask_ssl ||
1437 c->algorithm_mkey & ct->mask_k ||
1438 c->algorithm_auth & ct->mask_a)
1440 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1443 /* If p == q, no ciphers and caller indicates an error. Otherwise
1444 * add SCSV if not renegotiating.
1446 if (p != q && !s->renegotiate)
1448 static SSL_CIPHER scsv =
1450 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1452 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1454 #ifdef OPENSSL_RI_DEBUG
1455 fprintf(stderr, "SCSV sent by client\n");
1462 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1463 STACK_OF(SSL_CIPHER) **skp)
1465 const SSL_CIPHER *c;
1466 STACK_OF(SSL_CIPHER) *sk;
1469 s->s3->send_connection_binding = 0;
1471 n=ssl_put_cipher_by_char(s,NULL,NULL);
1474 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1477 if ((skp == NULL) || (*skp == NULL))
1478 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1482 sk_SSL_CIPHER_zero(sk);
1485 if (s->cert->ciphers_raw)
1486 OPENSSL_free(s->cert->ciphers_raw);
1487 s->cert->ciphers_raw = BUF_memdup(p, num);
1488 if (s->cert->ciphers_raw == NULL)
1490 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1493 s->cert->ciphers_rawlen = (size_t)num;
1495 for (i=0; i<num; i+=n)
1497 /* Check for SCSV */
1498 if (s->s3 && (n != 3 || !p[0]) &&
1499 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1500 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1502 /* SCSV fatal if renegotiating */
1505 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1506 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1509 s->s3->send_connection_binding = 1;
1511 #ifdef OPENSSL_RI_DEBUG
1512 fprintf(stderr, "SCSV received by server\n");
1517 c=ssl_get_cipher_by_char(s,p);
1521 if (!sk_SSL_CIPHER_push(sk,c))
1523 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1533 if ((skp == NULL) || (*skp == NULL))
1534 sk_SSL_CIPHER_free(sk);
1539 #ifndef OPENSSL_NO_TLSEXT
1540 /** return a servername extension value if provided in Client Hello, or NULL.
1541 * So far, only host_name types are defined (RFC 3546).
1544 const char *SSL_get_servername(const SSL *s, const int type)
1546 if (type != TLSEXT_NAMETYPE_host_name)
1549 return s->session && !s->tlsext_hostname ?
1550 s->session->tlsext_hostname :
1554 int SSL_get_servername_type(const SSL *s)
1556 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1557 return TLSEXT_NAMETYPE_host_name;
1561 # ifndef OPENSSL_NO_NEXTPROTONEG
1562 /* SSL_select_next_proto implements the standard protocol selection. It is
1563 * expected that this function is called from the callback set by
1564 * SSL_CTX_set_next_proto_select_cb.
1566 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1567 * strings. The length byte itself is not included in the length. A byte
1568 * string of length 0 is invalid. No byte string may be truncated.
1570 * The current, but experimental algorithm for selecting the protocol is:
1572 * 1) If the server doesn't support NPN then this is indicated to the
1573 * callback. In this case, the client application has to abort the connection
1574 * or have a default application level protocol.
1576 * 2) If the server supports NPN, but advertises an empty list then the
1577 * client selects the first protcol in its list, but indicates via the
1578 * API that this fallback case was enacted.
1580 * 3) Otherwise, the client finds the first protocol in the server's list
1581 * that it supports and selects this protocol. This is because it's
1582 * assumed that the server has better information about which protocol
1583 * a client should use.
1585 * 4) If the client doesn't support any of the server's advertised
1586 * protocols, then this is treated the same as case 2.
1589 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1590 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1592 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)
1595 const unsigned char *result;
1596 int status = OPENSSL_NPN_UNSUPPORTED;
1598 /* For each protocol in server preference order, see if we support it. */
1599 for (i = 0; i < server_len; )
1601 for (j = 0; j < client_len; )
1603 if (server[i] == client[j] &&
1604 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1606 /* We found a match */
1607 result = &server[i];
1608 status = OPENSSL_NPN_NEGOTIATED;
1618 /* There's no overlap between our protocols and the server's list. */
1620 status = OPENSSL_NPN_NO_OVERLAP;
1623 *out = (unsigned char *) result + 1;
1624 *outlen = result[0];
1628 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1629 * requested protocol for this connection and returns 0. If the client didn't
1630 * request any protocol, then *data is set to NULL.
1632 * Note that the client can request any protocol it chooses. The value returned
1633 * from this function need not be a member of the list of supported protocols
1634 * provided by the callback.
1636 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1638 *data = s->next_proto_negotiated;
1642 *len = s->next_proto_negotiated_len;
1646 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1647 * TLS server needs a list of supported protocols for Next Protocol
1648 * Negotiation. The returned list must be in wire format. The list is returned
1649 * by setting |out| to point to it and |outlen| to its length. This memory will
1650 * not be modified, but one should assume that the SSL* keeps a reference to
1653 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1654 * such extension will be included in the ServerHello. */
1655 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)
1657 ctx->next_protos_advertised_cb = cb;
1658 ctx->next_protos_advertised_cb_arg = arg;
1661 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1662 * client needs to select a protocol from the server's provided list. |out|
1663 * must be set to point to the selected protocol (which may be within |in|).
1664 * The length of the protocol name must be written into |outlen|. The server's
1665 * advertised protocols are provided in |in| and |inlen|. The callback can
1666 * assume that |in| is syntactically valid.
1668 * The client must select a protocol. It is fatal to the connection if this
1669 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1671 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)
1673 ctx->next_proto_select_cb = cb;
1674 ctx->next_proto_select_cb_arg = arg;
1679 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1680 const char *label, size_t llen, const unsigned char *p, size_t plen,
1683 if (s->version < TLS1_VERSION)
1686 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1691 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1696 ((unsigned int) a->session_id[0] )|
1697 ((unsigned int) a->session_id[1]<< 8L)|
1698 ((unsigned long)a->session_id[2]<<16L)|
1699 ((unsigned long)a->session_id[3]<<24L);
1703 /* NB: If this function (or indeed the hash function which uses a sort of
1704 * coarser function than this one) is changed, ensure
1705 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1706 * able to construct an SSL_SESSION that will collide with any existing session
1707 * with a matching session ID. */
1708 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1710 if (a->ssl_version != b->ssl_version)
1712 if (a->session_id_length != b->session_id_length)
1714 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1717 /* These wrapper functions should remain rather than redeclaring
1718 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1719 * variable. The reason is that the functions aren't static, they're exposed via
1721 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1722 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1724 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1730 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1735 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1737 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1742 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1744 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1747 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1751 memset(ret,0,sizeof(SSL_CTX));
1755 ret->cert_store=NULL;
1756 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1757 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1758 ret->session_cache_head=NULL;
1759 ret->session_cache_tail=NULL;
1761 /* We take the system default */
1762 ret->session_timeout=meth->get_timeout();
1764 ret->new_session_cb=0;
1765 ret->remove_session_cb=0;
1766 ret->get_session_cb=0;
1767 ret->generate_session_id=0;
1769 memset((char *)&ret->stats,0,sizeof(ret->stats));
1772 ret->quiet_shutdown=0;
1774 /* ret->cipher=NULL;*/
1775 /* ret->s2->challenge=NULL;
1776 ret->master_key=NULL;
1778 ret->s2->conn_id=NULL; */
1780 ret->info_callback=NULL;
1782 ret->app_verify_callback=0;
1783 ret->app_verify_arg=NULL;
1785 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1787 ret->msg_callback=0;
1788 ret->msg_callback_arg=NULL;
1789 ret->verify_mode=SSL_VERIFY_NONE;
1791 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1793 ret->sid_ctx_length=0;
1794 ret->default_verify_callback=NULL;
1795 if ((ret->cert=ssl_cert_new()) == NULL)
1798 ret->default_passwd_callback=0;
1799 ret->default_passwd_callback_userdata=NULL;
1800 ret->client_cert_cb=0;
1801 ret->app_gen_cookie_cb=0;
1802 ret->app_verify_cookie_cb=0;
1804 ret->sessions=lh_SSL_SESSION_new();
1805 if (ret->sessions == NULL) goto err;
1806 ret->cert_store=X509_STORE_new();
1807 if (ret->cert_store == NULL) goto err;
1809 ssl_create_cipher_list(ret->method,
1810 &ret->cipher_list,&ret->cipher_list_by_id,
1811 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1812 if (ret->cipher_list == NULL
1813 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1815 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1819 ret->param = X509_VERIFY_PARAM_new();
1823 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1825 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1828 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1830 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1833 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1835 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1839 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1842 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1844 ret->extra_certs=NULL;
1845 ret->comp_methods=SSL_COMP_get_compression_methods();
1847 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1849 #ifndef OPENSSL_NO_TLSEXT
1850 ret->tlsext_servername_callback = 0;
1851 ret->tlsext_servername_arg = NULL;
1852 /* Setup RFC4507 ticket keys */
1853 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1854 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1855 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1856 ret->options |= SSL_OP_NO_TICKET;
1858 ret->tlsext_status_cb = 0;
1859 ret->tlsext_status_arg = NULL;
1861 # ifndef OPENSSL_NO_NEXTPROTONEG
1862 ret->next_protos_advertised_cb = 0;
1863 ret->next_proto_select_cb = 0;
1866 #ifndef OPENSSL_NO_PSK
1867 ret->psk_identity_hint=NULL;
1868 ret->psk_client_callback=NULL;
1869 ret->psk_server_callback=NULL;
1871 #ifndef OPENSSL_NO_SRP
1872 SSL_CTX_SRP_CTX_init(ret);
1874 #ifndef OPENSSL_NO_BUF_FREELISTS
1875 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1876 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1877 if (!ret->rbuf_freelist)
1879 ret->rbuf_freelist->chunklen = 0;
1880 ret->rbuf_freelist->len = 0;
1881 ret->rbuf_freelist->head = NULL;
1882 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1883 if (!ret->wbuf_freelist)
1885 OPENSSL_free(ret->rbuf_freelist);
1888 ret->wbuf_freelist->chunklen = 0;
1889 ret->wbuf_freelist->len = 0;
1890 ret->wbuf_freelist->head = NULL;
1892 #ifndef OPENSSL_NO_ENGINE
1893 ret->client_cert_engine = NULL;
1894 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1895 #define eng_strx(x) #x
1896 #define eng_str(x) eng_strx(x)
1897 /* Use specific client engine automatically... ignore errors */
1900 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1904 ENGINE_load_builtin_engines();
1905 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1907 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1912 /* Default is to connect to non-RI servers. When RI is more widely
1913 * deployed might change this.
1915 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1919 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1921 if (ret != NULL) SSL_CTX_free(ret);
1926 static void SSL_COMP_free(SSL_COMP *comp)
1927 { OPENSSL_free(comp); }
1930 #ifndef OPENSSL_NO_BUF_FREELISTS
1932 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1934 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1935 for (ent = list->head; ent; ent = next)
1944 void SSL_CTX_free(SSL_CTX *a)
1948 if (a == NULL) return;
1950 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1952 REF_PRINT("SSL_CTX",a);
1958 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1964 X509_VERIFY_PARAM_free(a->param);
1967 * Free internal session cache. However: the remove_cb() may reference
1968 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1969 * after the sessions were flushed.
1970 * As the ex_data handling routines might also touch the session cache,
1971 * the most secure solution seems to be: empty (flush) the cache, then
1972 * free ex_data, then finally free the cache.
1973 * (See ticket [openssl.org #212].)
1975 if (a->sessions != NULL)
1976 SSL_CTX_flush_sessions(a,0);
1978 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1980 if (a->sessions != NULL)
1981 lh_SSL_SESSION_free(a->sessions);
1983 if (a->cert_store != NULL)
1984 X509_STORE_free(a->cert_store);
1985 if (a->cipher_list != NULL)
1986 sk_SSL_CIPHER_free(a->cipher_list);
1987 if (a->cipher_list_by_id != NULL)
1988 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1989 if (a->cert != NULL)
1990 ssl_cert_free(a->cert);
1991 if (a->client_CA != NULL)
1992 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1993 if (a->extra_certs != NULL)
1994 sk_X509_pop_free(a->extra_certs,X509_free);
1995 #if 0 /* This should never be done, since it removes a global database */
1996 if (a->comp_methods != NULL)
1997 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1999 a->comp_methods = NULL;
2002 if (a->srtp_profiles)
2003 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2005 #ifndef OPENSSL_NO_PSK
2006 if (a->psk_identity_hint)
2007 OPENSSL_free(a->psk_identity_hint);
2009 #ifndef OPENSSL_NO_SRP
2010 SSL_CTX_SRP_CTX_free(a);
2012 #ifndef OPENSSL_NO_ENGINE
2013 if (a->client_cert_engine)
2014 ENGINE_finish(a->client_cert_engine);
2017 #ifndef OPENSSL_NO_BUF_FREELISTS
2018 if (a->wbuf_freelist)
2019 ssl_buf_freelist_free(a->wbuf_freelist);
2020 if (a->rbuf_freelist)
2021 ssl_buf_freelist_free(a->rbuf_freelist);
2023 #ifndef OPENSSL_NO_TLSEXT
2024 # ifndef OPENSSL_NO_EC
2025 if (a->tlsext_ecpointformatlist)
2026 OPENSSL_free(a->tlsext_ecpointformatlist);
2027 if (a->tlsext_ellipticcurvelist)
2028 OPENSSL_free(a->tlsext_ellipticcurvelist);
2029 # endif /* OPENSSL_NO_EC */
2035 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2037 ctx->default_passwd_callback=cb;
2040 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2042 ctx->default_passwd_callback_userdata=u;
2045 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2047 ctx->app_verify_callback=cb;
2048 ctx->app_verify_arg=arg;
2051 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2053 ctx->verify_mode=mode;
2054 ctx->default_verify_callback=cb;
2057 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2059 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2062 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2064 ssl_cert_set_cert_cb(c->cert, cb, arg);
2067 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2069 ssl_cert_set_cert_cb(s->cert, cb, arg);
2072 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2075 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2076 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2077 int rsa_tmp_export,dh_tmp_export,kl;
2078 unsigned long mask_k,mask_a,emask_k,emask_a;
2079 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
2080 #ifndef OPENSSL_NO_ECDH
2084 EVP_PKEY *ecc_pkey = NULL;
2085 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2087 if (c == NULL) return;
2089 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2091 #ifndef OPENSSL_NO_RSA
2092 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2093 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2094 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2096 rsa_tmp=rsa_tmp_export=0;
2098 #ifndef OPENSSL_NO_DH
2099 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2100 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2101 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2103 dh_tmp=dh_tmp_export=0;
2106 #ifndef OPENSSL_NO_ECDH
2107 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2109 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2110 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2111 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2112 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2113 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2114 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2115 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2116 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2117 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2118 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2119 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2120 /* FIX THIS EAY EAY EAY */
2121 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2122 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2123 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2124 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2133 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2134 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2135 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2138 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2139 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2140 mask_k |= SSL_kGOST;
2141 mask_a |= SSL_aGOST01;
2143 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2144 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2145 mask_k |= SSL_kGOST;
2146 mask_a |= SSL_aGOST94;
2149 if (rsa_enc || (rsa_tmp && rsa_sign))
2151 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2155 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2156 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2157 (rsa_enc || rsa_sign || dsa_sign))
2159 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2160 (rsa_enc || rsa_sign || dsa_sign))
2170 if (dh_rsa) mask_k|=SSL_kDHr;
2171 if (dh_rsa_export) emask_k|=SSL_kDHr;
2173 if (dh_dsa) mask_k|=SSL_kDHd;
2174 if (dh_dsa_export) emask_k|=SSL_kDHd;
2176 if (emask_k & (SSL_kDHr|SSL_kDHd))
2179 if (rsa_enc || rsa_sign)
2194 #ifndef OPENSSL_NO_KRB5
2201 /* An ECC certificate may be usable for ECDH and/or
2202 * ECDSA cipher suites depending on the key usage extension.
2206 cpk = &c->pkeys[SSL_PKEY_ECC];
2208 /* This call populates extension flags (ex_flags) */
2209 X509_check_purpose(x, -1, 0);
2210 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2211 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2212 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2213 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2214 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2216 ecc_pkey = X509_get_pubkey(x);
2217 ecc_pkey_size = (ecc_pkey != NULL) ?
2218 EVP_PKEY_bits(ecc_pkey) : 0;
2219 EVP_PKEY_free(ecc_pkey);
2220 if ((x->sig_alg) && (x->sig_alg->algorithm))
2222 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2223 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2225 #ifndef OPENSSL_NO_ECDH
2229 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2233 if (ecc_pkey_size <= 163)
2235 emask_k|=SSL_kECDHr;
2240 if (pk_nid == NID_X9_62_id_ecPublicKey)
2244 if (ecc_pkey_size <= 163)
2246 emask_k|=SSL_kECDHe;
2252 #ifndef OPENSSL_NO_ECDSA
2256 emask_a|=SSL_aECDSA;
2261 #ifndef OPENSSL_NO_ECDH
2265 emask_k|=SSL_kEECDH;
2269 #ifndef OPENSSL_NO_PSK
2272 emask_k |= SSL_kPSK;
2273 emask_a |= SSL_aPSK;
2278 c->export_mask_k=emask_k;
2279 c->export_mask_a=emask_a;
2283 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2284 #define ku_reject(x, usage) \
2285 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2287 #ifndef OPENSSL_NO_EC
2289 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2291 unsigned long alg_k, alg_a;
2292 EVP_PKEY *pkey = NULL;
2294 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2295 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2297 alg_k = cs->algorithm_mkey;
2298 alg_a = cs->algorithm_auth;
2300 if (SSL_C_IS_EXPORT(cs))
2302 /* ECDH key length in export ciphers must be <= 163 bits */
2303 pkey = X509_get_pubkey(x);
2304 if (pkey == NULL) return 0;
2305 keysize = EVP_PKEY_bits(pkey);
2306 EVP_PKEY_free(pkey);
2307 if (keysize > 163) return 0;
2310 /* This call populates the ex_flags field correctly */
2311 X509_check_purpose(x, -1, 0);
2312 if ((x->sig_alg) && (x->sig_alg->algorithm))
2314 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2315 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2317 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2319 /* key usage, if present, must allow key agreement */
2320 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2322 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2325 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2327 /* signature alg must be ECDSA */
2328 if (pk_nid != NID_X9_62_id_ecPublicKey)
2330 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2334 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2336 /* signature alg must be RSA */
2338 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2340 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2345 if (alg_a & SSL_aECDSA)
2347 /* key usage, if present, must allow signing */
2348 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2350 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2355 return 1; /* all checks are ok */
2360 static int ssl_get_server_cert_index(const SSL *s)
2363 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2364 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2365 idx = SSL_PKEY_RSA_SIGN;
2367 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2371 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2377 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2379 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2380 /* Broken protocol test: return last used certificate: which may
2381 * mismatch the one expected.
2383 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTCOL)
2387 i = ssl_get_server_cert_index(s);
2389 /* This may or may not be an error. */
2394 return &c->pkeys[i];
2397 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2399 unsigned long alg_a;
2403 alg_a = cipher->algorithm_auth;
2406 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2407 /* Broken protocol test: use last key: which may
2408 * mismatch the one expected.
2410 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTCOL)
2411 idx = c->key - c->pkeys;
2415 if ((alg_a & SSL_aDSS) &&
2416 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2417 idx = SSL_PKEY_DSA_SIGN;
2418 else if (alg_a & SSL_aRSA)
2420 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2421 idx = SSL_PKEY_RSA_SIGN;
2422 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2423 idx = SSL_PKEY_RSA_ENC;
2425 else if ((alg_a & SSL_aECDSA) &&
2426 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2430 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2434 *pmd = c->pkeys[idx].digest;
2435 return c->pkeys[idx].privatekey;
2438 #ifndef OPENSSL_NO_TLSEXT
2439 unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length)
2445 i = ssl_get_server_cert_index(s);
2451 if (c->pkeys[i].authz == NULL)
2453 *authz_length = c->pkeys[i].authz_length;
2455 return c->pkeys[i].authz;
2459 void ssl_update_cache(SSL *s,int mode)
2463 /* If the session_id_length is 0, we are not supposed to cache it,
2464 * and it would be rather hard to do anyway :-) */
2465 if (s->session->session_id_length == 0) return;
2467 i=s->session_ctx->session_cache_mode;
2468 if ((i & mode) && (!s->hit)
2469 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2470 || SSL_CTX_add_session(s->session_ctx,s->session))
2471 && (s->session_ctx->new_session_cb != NULL))
2473 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2474 if (!s->session_ctx->new_session_cb(s,s->session))
2475 SSL_SESSION_free(s->session);
2478 /* auto flush every 255 connections */
2479 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2480 ((i & mode) == mode))
2482 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2483 ?s->session_ctx->stats.sess_connect_good
2484 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2486 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2491 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2496 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2501 if (s->method != meth)
2503 if (s->handshake_func != NULL)
2504 conn=(s->handshake_func == s->method->ssl_connect);
2506 if (s->method->version == meth->version)
2510 s->method->ssl_free(s);
2512 ret=s->method->ssl_new(s);
2516 s->handshake_func=meth->ssl_connect;
2518 s->handshake_func=meth->ssl_accept;
2523 int SSL_get_error(const SSL *s,int i)
2529 if (i > 0) return(SSL_ERROR_NONE);
2531 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2532 * etc, where we do encode the error */
2533 if ((l=ERR_peek_error()) != 0)
2535 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2536 return(SSL_ERROR_SYSCALL);
2538 return(SSL_ERROR_SSL);
2541 if ((i < 0) && SSL_want_read(s))
2543 bio=SSL_get_rbio(s);
2544 if (BIO_should_read(bio))
2545 return(SSL_ERROR_WANT_READ);
2546 else if (BIO_should_write(bio))
2547 /* This one doesn't make too much sense ... We never try
2548 * to write to the rbio, and an application program where
2549 * rbio and wbio are separate couldn't even know what it
2551 * However if we ever set s->rwstate incorrectly
2552 * (so that we have SSL_want_read(s) instead of
2553 * SSL_want_write(s)) and rbio and wbio *are* the same,
2554 * this test works around that bug; so it might be safer
2556 return(SSL_ERROR_WANT_WRITE);
2557 else if (BIO_should_io_special(bio))
2559 reason=BIO_get_retry_reason(bio);
2560 if (reason == BIO_RR_CONNECT)
2561 return(SSL_ERROR_WANT_CONNECT);
2562 else if (reason == BIO_RR_ACCEPT)
2563 return(SSL_ERROR_WANT_ACCEPT);
2565 return(SSL_ERROR_SYSCALL); /* unknown */
2569 if ((i < 0) && SSL_want_write(s))
2571 bio=SSL_get_wbio(s);
2572 if (BIO_should_write(bio))
2573 return(SSL_ERROR_WANT_WRITE);
2574 else if (BIO_should_read(bio))
2575 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2576 return(SSL_ERROR_WANT_READ);
2577 else if (BIO_should_io_special(bio))
2579 reason=BIO_get_retry_reason(bio);
2580 if (reason == BIO_RR_CONNECT)
2581 return(SSL_ERROR_WANT_CONNECT);
2582 else if (reason == BIO_RR_ACCEPT)
2583 return(SSL_ERROR_WANT_ACCEPT);
2585 return(SSL_ERROR_SYSCALL);
2588 if ((i < 0) && SSL_want_x509_lookup(s))
2590 return(SSL_ERROR_WANT_X509_LOOKUP);
2595 if (s->version == SSL2_VERSION)
2597 /* assume it is the socket being closed */
2598 return(SSL_ERROR_ZERO_RETURN);
2602 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2603 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2604 return(SSL_ERROR_ZERO_RETURN);
2607 return(SSL_ERROR_SYSCALL);
2610 int SSL_do_handshake(SSL *s)
2614 if (s->handshake_func == NULL)
2616 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2620 s->method->ssl_renegotiate_check(s);
2622 if (SSL_in_init(s) || SSL_in_before(s))
2624 ret=s->handshake_func(s);
2629 /* For the next 2 functions, SSL_clear() sets shutdown and so
2630 * one of these calls will reset it */
2631 void SSL_set_accept_state(SSL *s)
2635 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2636 s->handshake_func=s->method->ssl_accept;
2637 /* clear the current cipher */
2638 ssl_clear_cipher_ctx(s);
2639 ssl_clear_hash_ctx(&s->read_hash);
2640 ssl_clear_hash_ctx(&s->write_hash);
2643 void SSL_set_connect_state(SSL *s)
2647 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2648 s->handshake_func=s->method->ssl_connect;
2649 /* clear the current cipher */
2650 ssl_clear_cipher_ctx(s);
2651 ssl_clear_hash_ctx(&s->read_hash);
2652 ssl_clear_hash_ctx(&s->write_hash);
2655 int ssl_undefined_function(SSL *s)
2657 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2661 int ssl_undefined_void_function(void)
2663 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2667 int ssl_undefined_const_function(const SSL *s)
2669 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2673 SSL_METHOD *ssl_bad_method(int ver)
2675 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2679 const char *SSL_get_version(const SSL *s)
2681 if (s->version == TLS1_2_VERSION)
2683 else if (s->version == TLS1_1_VERSION)
2685 else if (s->version == TLS1_VERSION)
2687 else if (s->version == SSL3_VERSION)
2689 else if (s->version == SSL2_VERSION)
2695 SSL *SSL_dup(SSL *s)
2697 STACK_OF(X509_NAME) *sk;
2702 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2705 ret->version = s->version;
2706 ret->type = s->type;
2707 ret->method = s->method;
2709 if (s->session != NULL)
2711 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2712 SSL_copy_session_id(ret,s);
2716 /* No session has been established yet, so we have to expect
2717 * that s->cert or ret->cert will be changed later --
2718 * they should not both point to the same object,
2719 * and thus we can't use SSL_copy_session_id. */
2721 ret->method->ssl_free(ret);
2722 ret->method = s->method;
2723 ret->method->ssl_new(ret);
2725 if (s->cert != NULL)
2727 if (ret->cert != NULL)
2729 ssl_cert_free(ret->cert);
2731 ret->cert = ssl_cert_dup(s->cert);
2732 if (ret->cert == NULL)
2736 SSL_set_session_id_context(ret,
2737 s->sid_ctx, s->sid_ctx_length);
2740 ret->options=s->options;
2742 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2743 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2744 ret->msg_callback = s->msg_callback;
2745 ret->msg_callback_arg = s->msg_callback_arg;
2746 SSL_set_verify(ret,SSL_get_verify_mode(s),
2747 SSL_get_verify_callback(s));
2748 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2749 ret->generate_session_id = s->generate_session_id;
2751 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2753 ret->debug=s->debug;
2755 /* copy app data, a little dangerous perhaps */
2756 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2759 /* setup rbio, and wbio */
2760 if (s->rbio != NULL)
2762 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2765 if (s->wbio != NULL)
2767 if (s->wbio != s->rbio)
2769 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2773 ret->wbio=ret->rbio;
2775 ret->rwstate = s->rwstate;
2776 ret->in_handshake = s->in_handshake;
2777 ret->handshake_func = s->handshake_func;
2778 ret->server = s->server;
2779 ret->renegotiate = s->renegotiate;
2780 ret->new_session = s->new_session;
2781 ret->quiet_shutdown = s->quiet_shutdown;
2782 ret->shutdown=s->shutdown;
2783 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2784 ret->rstate=s->rstate;
2785 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2788 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2790 /* dup the cipher_list and cipher_list_by_id stacks */
2791 if (s->cipher_list != NULL)
2793 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2796 if (s->cipher_list_by_id != NULL)
2797 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2801 /* Dup the client_CA list */
2802 if (s->client_CA != NULL)
2804 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2806 for (i=0; i<sk_X509_NAME_num(sk); i++)
2808 xn=sk_X509_NAME_value(sk,i);
2809 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2820 if (ret != NULL) SSL_free(ret);
2826 void ssl_clear_cipher_ctx(SSL *s)
2828 if (s->enc_read_ctx != NULL)
2830 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2831 OPENSSL_free(s->enc_read_ctx);
2832 s->enc_read_ctx=NULL;
2834 if (s->enc_write_ctx != NULL)
2836 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2837 OPENSSL_free(s->enc_write_ctx);
2838 s->enc_write_ctx=NULL;
2840 #ifndef OPENSSL_NO_COMP
2841 if (s->expand != NULL)
2843 COMP_CTX_free(s->expand);
2846 if (s->compress != NULL)
2848 COMP_CTX_free(s->compress);
2854 /* Fix this function so that it takes an optional type parameter */
2855 X509 *SSL_get_certificate(const SSL *s)
2857 if (s->cert != NULL)
2858 return(s->cert->key->x509);
2863 /* Fix this function so that it takes an optional type parameter */
2864 EVP_PKEY *SSL_get_privatekey(SSL *s)
2866 if (s->cert != NULL)
2867 return(s->cert->key->privatekey);
2872 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2874 if ((s->session != NULL) && (s->session->cipher != NULL))
2875 return(s->session->cipher);
2878 #ifdef OPENSSL_NO_COMP
2879 const void *SSL_get_current_compression(SSL *s)
2883 const void *SSL_get_current_expansion(SSL *s)
2889 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2891 if (s->compress != NULL)
2892 return(s->compress->meth);
2896 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2898 if (s->expand != NULL)
2899 return(s->expand->meth);
2904 int ssl_init_wbio_buffer(SSL *s,int push)
2908 if (s->bbio == NULL)
2910 bbio=BIO_new(BIO_f_buffer());
2911 if (bbio == NULL) return(0);
2917 if (s->bbio == s->wbio)
2918 s->wbio=BIO_pop(s->wbio);
2920 (void)BIO_reset(bbio);
2921 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2922 if (!BIO_set_read_buffer_size(bbio,1))
2924 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2929 if (s->wbio != bbio)
2930 s->wbio=BIO_push(bbio,s->wbio);
2934 if (s->wbio == bbio)
2935 s->wbio=BIO_pop(bbio);
2940 void ssl_free_wbio_buffer(SSL *s)
2942 if (s->bbio == NULL) return;
2944 if (s->bbio == s->wbio)
2946 /* remove buffering */
2947 s->wbio=BIO_pop(s->wbio);
2948 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2949 assert(s->wbio != NULL);
2956 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2958 ctx->quiet_shutdown=mode;
2961 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2963 return(ctx->quiet_shutdown);
2966 void SSL_set_quiet_shutdown(SSL *s,int mode)
2968 s->quiet_shutdown=mode;
2971 int SSL_get_quiet_shutdown(const SSL *s)
2973 return(s->quiet_shutdown);
2976 void SSL_set_shutdown(SSL *s,int mode)
2981 int SSL_get_shutdown(const SSL *s)
2983 return(s->shutdown);
2986 int SSL_version(const SSL *s)
2991 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2996 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2998 if (ssl->ctx == ctx)
3000 #ifndef OPENSSL_NO_TLSEXT
3002 ctx = ssl->initial_ctx;
3004 if (ssl->cert != NULL)
3005 ssl_cert_free(ssl->cert);
3006 ssl->cert = ssl_cert_dup(ctx->cert);
3007 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3008 if (ssl->ctx != NULL)
3009 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3014 #ifndef OPENSSL_NO_STDIO
3015 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3017 return(X509_STORE_set_default_paths(ctx->cert_store));
3020 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3023 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3027 void SSL_set_info_callback(SSL *ssl,
3028 void (*cb)(const SSL *ssl,int type,int val))
3030 ssl->info_callback=cb;
3033 /* One compiler (Diab DCC) doesn't like argument names in returned
3034 function pointer. */
3035 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3037 return ssl->info_callback;
3040 int SSL_state(const SSL *ssl)
3045 void SSL_set_state(SSL *ssl, int state)
3050 void SSL_set_verify_result(SSL *ssl,long arg)
3052 ssl->verify_result=arg;
3055 long SSL_get_verify_result(const SSL *ssl)
3057 return(ssl->verify_result);
3060 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3061 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3063 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3064 new_func, dup_func, free_func);
3067 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3069 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3072 void *SSL_get_ex_data(const SSL *s,int idx)
3074 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3077 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3078 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3080 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3081 new_func, dup_func, free_func);
3084 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3086 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3089 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3091 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3099 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3101 return(ctx->cert_store);
3104 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3106 if (ctx->cert_store != NULL)
3107 X509_STORE_free(ctx->cert_store);
3108 ctx->cert_store=store;
3111 int SSL_want(const SSL *s)
3117 * \brief Set the callback for generating temporary RSA keys.
3118 * \param ctx the SSL context.
3119 * \param cb the callback
3122 #ifndef OPENSSL_NO_RSA
3123 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3127 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3130 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3134 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3140 * \brief The RSA temporary key callback function.
3141 * \param ssl the SSL session.
3142 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3143 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3144 * of the required key in bits.
3145 * \return the temporary RSA key.
3146 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3149 RSA *cb(SSL *ssl,int is_export,int keylength)
3154 * \brief Set the callback for generating temporary DH keys.
3155 * \param ctx the SSL context.
3156 * \param dh the callback
3159 #ifndef OPENSSL_NO_DH
3160 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3163 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3166 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3169 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3173 #ifndef OPENSSL_NO_ECDH
3174 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3177 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3180 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3183 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3187 #ifndef OPENSSL_NO_PSK
3188 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3190 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3192 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3195 if (ctx->psk_identity_hint != NULL)
3196 OPENSSL_free(ctx->psk_identity_hint);
3197 if (identity_hint != NULL)
3199 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3200 if (ctx->psk_identity_hint == NULL)
3204 ctx->psk_identity_hint = NULL;
3208 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3213 if (s->session == NULL)
3214 return 1; /* session not created yet, ignored */
3216 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3218 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3221 if (s->session->psk_identity_hint != NULL)
3222 OPENSSL_free(s->session->psk_identity_hint);
3223 if (identity_hint != NULL)
3225 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3226 if (s->session->psk_identity_hint == NULL)
3230 s->session->psk_identity_hint = NULL;
3234 const char *SSL_get_psk_identity_hint(const SSL *s)
3236 if (s == NULL || s->session == NULL)
3238 return(s->session->psk_identity_hint);
3241 const char *SSL_get_psk_identity(const SSL *s)
3243 if (s == NULL || s->session == NULL)
3245 return(s->session->psk_identity);
3248 void SSL_set_psk_client_callback(SSL *s,
3249 unsigned int (*cb)(SSL *ssl, const char *hint,
3250 char *identity, unsigned int max_identity_len, unsigned char *psk,
3251 unsigned int max_psk_len))
3253 s->psk_client_callback = cb;
3256 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3257 unsigned int (*cb)(SSL *ssl, const char *hint,
3258 char *identity, unsigned int max_identity_len, unsigned char *psk,
3259 unsigned int max_psk_len))
3261 ctx->psk_client_callback = cb;
3264 void SSL_set_psk_server_callback(SSL *s,
3265 unsigned int (*cb)(SSL *ssl, const char *identity,
3266 unsigned char *psk, unsigned int max_psk_len))
3268 s->psk_server_callback = cb;
3271 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3272 unsigned int (*cb)(SSL *ssl, const char *identity,
3273 unsigned char *psk, unsigned int max_psk_len))
3275 ctx->psk_server_callback = cb;
3279 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))
3281 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3283 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))
3285 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3288 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3289 int (*cb)(SSL *ssl, int is_forward_secure))
3291 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3292 (void (*)(void))cb);
3294 void SSL_set_not_resumable_session_callback(SSL *ssl,
3295 int (*cb)(SSL *ssl, int is_forward_secure))
3297 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3298 (void (*)(void))cb);
3301 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3302 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3303 * any. If EVP_MD pointer is passed, initializes ctx with this md
3304 * Returns newly allocated ctx;
3307 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3309 ssl_clear_hash_ctx(hash);
3310 *hash = EVP_MD_CTX_create();
3311 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3314 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3317 if (*hash) EVP_MD_CTX_destroy(*hash);
3321 void SSL_set_debug(SSL *s, int debug)
3326 int SSL_cache_hit(SSL *s)
3331 int SSL_is_server(SSL *s)
3336 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3337 #include "../crypto/bio/bss_file.c"
3340 IMPLEMENT_STACK_OF(SSL_CIPHER)
3341 IMPLEMENT_STACK_OF(SSL_COMP)
3342 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,