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);
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 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1140 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1144 case SSL_CTRL_SET_MSG_CALLBACK:
1145 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1149 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1153 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1155 return ctx->sessions;
1158 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1164 case SSL_CTRL_GET_READ_AHEAD:
1165 return(ctx->read_ahead);
1166 case SSL_CTRL_SET_READ_AHEAD:
1168 ctx->read_ahead=larg;
1171 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1172 ctx->msg_callback_arg = parg;
1175 case SSL_CTRL_GET_MAX_CERT_LIST:
1176 return(ctx->max_cert_list);
1177 case SSL_CTRL_SET_MAX_CERT_LIST:
1178 l=ctx->max_cert_list;
1179 ctx->max_cert_list=larg;
1182 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1183 l=ctx->session_cache_size;
1184 ctx->session_cache_size=larg;
1186 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1187 return(ctx->session_cache_size);
1188 case SSL_CTRL_SET_SESS_CACHE_MODE:
1189 l=ctx->session_cache_mode;
1190 ctx->session_cache_mode=larg;
1192 case SSL_CTRL_GET_SESS_CACHE_MODE:
1193 return(ctx->session_cache_mode);
1195 case SSL_CTRL_SESS_NUMBER:
1196 return(lh_SSL_SESSION_num_items(ctx->sessions));
1197 case SSL_CTRL_SESS_CONNECT:
1198 return(ctx->stats.sess_connect);
1199 case SSL_CTRL_SESS_CONNECT_GOOD:
1200 return(ctx->stats.sess_connect_good);
1201 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1202 return(ctx->stats.sess_connect_renegotiate);
1203 case SSL_CTRL_SESS_ACCEPT:
1204 return(ctx->stats.sess_accept);
1205 case SSL_CTRL_SESS_ACCEPT_GOOD:
1206 return(ctx->stats.sess_accept_good);
1207 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1208 return(ctx->stats.sess_accept_renegotiate);
1209 case SSL_CTRL_SESS_HIT:
1210 return(ctx->stats.sess_hit);
1211 case SSL_CTRL_SESS_CB_HIT:
1212 return(ctx->stats.sess_cb_hit);
1213 case SSL_CTRL_SESS_MISSES:
1214 return(ctx->stats.sess_miss);
1215 case SSL_CTRL_SESS_TIMEOUTS:
1216 return(ctx->stats.sess_timeout);
1217 case SSL_CTRL_SESS_CACHE_FULL:
1218 return(ctx->stats.sess_cache_full);
1219 case SSL_CTRL_OPTIONS:
1220 return(ctx->options|=larg);
1221 case SSL_CTRL_CLEAR_OPTIONS:
1222 return(ctx->options&=~larg);
1224 return(ctx->mode|=larg);
1225 case SSL_CTRL_CLEAR_MODE:
1226 return(ctx->mode&=~larg);
1227 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1228 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1230 ctx->max_send_fragment = larg;
1232 case SSL_CTRL_CERT_FLAGS:
1233 return(ctx->cert->cert_flags|=larg);
1234 case SSL_CTRL_CLEAR_CERT_FLAGS:
1235 return(ctx->cert->cert_flags &=~larg);
1237 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1241 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1245 case SSL_CTRL_SET_MSG_CALLBACK:
1246 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1250 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1254 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1262 return((l > 0)?1:-1);
1265 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1266 const SSL_CIPHER * const *bp)
1270 l=(*ap)->id-(*bp)->id;
1274 return((l > 0)?1:-1);
1277 /** return a STACK of the ciphers available for the SSL and in order of
1279 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1283 if (s->cipher_list != NULL)
1285 return(s->cipher_list);
1287 else if ((s->ctx != NULL) &&
1288 (s->ctx->cipher_list != NULL))
1290 return(s->ctx->cipher_list);
1296 /** return a STACK of the ciphers available for the SSL and in order of
1298 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1302 if (s->cipher_list_by_id != NULL)
1304 return(s->cipher_list_by_id);
1306 else if ((s->ctx != NULL) &&
1307 (s->ctx->cipher_list_by_id != NULL))
1309 return(s->ctx->cipher_list_by_id);
1315 /** The old interface to get the same thing as SSL_get_ciphers() */
1316 const char *SSL_get_cipher_list(const SSL *s,int n)
1319 STACK_OF(SSL_CIPHER) *sk;
1321 if (s == NULL) return(NULL);
1322 sk=SSL_get_ciphers(s);
1323 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1325 c=sk_SSL_CIPHER_value(sk,n);
1326 if (c == NULL) return(NULL);
1330 /** specify the ciphers to be used by default by the SSL_CTX */
1331 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1333 STACK_OF(SSL_CIPHER) *sk;
1335 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1336 &ctx->cipher_list_by_id,str);
1337 /* ssl_create_cipher_list may return an empty stack if it
1338 * was unable to find a cipher matching the given rule string
1339 * (for example if the rule string specifies a cipher which
1340 * has been disabled). This is not an error as far as
1341 * ssl_create_cipher_list is concerned, and hence
1342 * ctx->cipher_list and ctx->cipher_list_by_id has been
1346 else if (sk_SSL_CIPHER_num(sk) == 0)
1348 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1354 /** specify the ciphers to be used by the SSL */
1355 int SSL_set_cipher_list(SSL *s,const char *str)
1357 STACK_OF(SSL_CIPHER) *sk;
1359 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1360 &s->cipher_list_by_id,str);
1361 /* see comment in SSL_CTX_set_cipher_list */
1364 else if (sk_SSL_CIPHER_num(sk) == 0)
1366 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1372 /* works well for SSLv2, not so good for SSLv3 */
1373 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1376 STACK_OF(SSL_CIPHER) *sk;
1380 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1385 sk=s->session->ciphers;
1386 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1390 c=sk_SSL_CIPHER_value(sk,i);
1408 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1409 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1415 /* Set disabled masks for this session */
1416 ssl_set_client_disabled(s);
1418 if (sk == NULL) return(0);
1421 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1423 c=sk_SSL_CIPHER_value(sk,i);
1424 /* Skip disabled ciphers */
1425 if (c->algorithm_ssl & ct->mask_ssl ||
1426 c->algorithm_mkey & ct->mask_k ||
1427 c->algorithm_auth & ct->mask_a)
1429 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1432 /* If p == q, no ciphers and caller indicates an error. Otherwise
1433 * add SCSV if not renegotiating.
1435 if (p != q && !s->renegotiate)
1437 static SSL_CIPHER scsv =
1439 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1441 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1443 #ifdef OPENSSL_RI_DEBUG
1444 fprintf(stderr, "SCSV sent by client\n");
1451 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1452 STACK_OF(SSL_CIPHER) **skp)
1454 const SSL_CIPHER *c;
1455 STACK_OF(SSL_CIPHER) *sk;
1458 s->s3->send_connection_binding = 0;
1460 n=ssl_put_cipher_by_char(s,NULL,NULL);
1463 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1466 if ((skp == NULL) || (*skp == NULL))
1467 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1471 sk_SSL_CIPHER_zero(sk);
1474 for (i=0; i<num; i+=n)
1476 /* Check for SCSV */
1477 if (s->s3 && (n != 3 || !p[0]) &&
1478 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1479 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1481 /* SCSV fatal if renegotiating */
1484 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1485 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1488 s->s3->send_connection_binding = 1;
1490 #ifdef OPENSSL_RI_DEBUG
1491 fprintf(stderr, "SCSV received by server\n");
1496 c=ssl_get_cipher_by_char(s,p);
1500 if (!sk_SSL_CIPHER_push(sk,c))
1502 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1512 if ((skp == NULL) || (*skp == NULL))
1513 sk_SSL_CIPHER_free(sk);
1518 #ifndef OPENSSL_NO_TLSEXT
1519 /** return a servername extension value if provided in Client Hello, or NULL.
1520 * So far, only host_name types are defined (RFC 3546).
1523 const char *SSL_get_servername(const SSL *s, const int type)
1525 if (type != TLSEXT_NAMETYPE_host_name)
1528 return s->session && !s->tlsext_hostname ?
1529 s->session->tlsext_hostname :
1533 int SSL_get_servername_type(const SSL *s)
1535 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1536 return TLSEXT_NAMETYPE_host_name;
1540 # ifndef OPENSSL_NO_NEXTPROTONEG
1541 /* SSL_select_next_proto implements the standard protocol selection. It is
1542 * expected that this function is called from the callback set by
1543 * SSL_CTX_set_next_proto_select_cb.
1545 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1546 * strings. The length byte itself is not included in the length. A byte
1547 * string of length 0 is invalid. No byte string may be truncated.
1549 * The current, but experimental algorithm for selecting the protocol is:
1551 * 1) If the server doesn't support NPN then this is indicated to the
1552 * callback. In this case, the client application has to abort the connection
1553 * or have a default application level protocol.
1555 * 2) If the server supports NPN, but advertises an empty list then the
1556 * client selects the first protcol in its list, but indicates via the
1557 * API that this fallback case was enacted.
1559 * 3) Otherwise, the client finds the first protocol in the server's list
1560 * that it supports and selects this protocol. This is because it's
1561 * assumed that the server has better information about which protocol
1562 * a client should use.
1564 * 4) If the client doesn't support any of the server's advertised
1565 * protocols, then this is treated the same as case 2.
1568 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1569 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1571 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)
1574 const unsigned char *result;
1575 int status = OPENSSL_NPN_UNSUPPORTED;
1577 /* For each protocol in server preference order, see if we support it. */
1578 for (i = 0; i < server_len; )
1580 for (j = 0; j < client_len; )
1582 if (server[i] == client[j] &&
1583 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1585 /* We found a match */
1586 result = &server[i];
1587 status = OPENSSL_NPN_NEGOTIATED;
1597 /* There's no overlap between our protocols and the server's list. */
1599 status = OPENSSL_NPN_NO_OVERLAP;
1602 *out = (unsigned char *) result + 1;
1603 *outlen = result[0];
1607 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1608 * requested protocol for this connection and returns 0. If the client didn't
1609 * request any protocol, then *data is set to NULL.
1611 * Note that the client can request any protocol it chooses. The value returned
1612 * from this function need not be a member of the list of supported protocols
1613 * provided by the callback.
1615 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1617 *data = s->next_proto_negotiated;
1621 *len = s->next_proto_negotiated_len;
1625 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1626 * TLS server needs a list of supported protocols for Next Protocol
1627 * Negotiation. The returned list must be in wire format. The list is returned
1628 * by setting |out| to point to it and |outlen| to its length. This memory will
1629 * not be modified, but one should assume that the SSL* keeps a reference to
1632 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1633 * such extension will be included in the ServerHello. */
1634 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)
1636 ctx->next_protos_advertised_cb = cb;
1637 ctx->next_protos_advertised_cb_arg = arg;
1640 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1641 * client needs to select a protocol from the server's provided list. |out|
1642 * must be set to point to the selected protocol (which may be within |in|).
1643 * The length of the protocol name must be written into |outlen|. The server's
1644 * advertised protocols are provided in |in| and |inlen|. The callback can
1645 * assume that |in| is syntactically valid.
1647 * The client must select a protocol. It is fatal to the connection if this
1648 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1650 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)
1652 ctx->next_proto_select_cb = cb;
1653 ctx->next_proto_select_cb_arg = arg;
1658 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1659 const char *label, size_t llen, const unsigned char *p, size_t plen,
1662 if (s->version < TLS1_VERSION)
1665 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1670 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1675 ((unsigned int) a->session_id[0] )|
1676 ((unsigned int) a->session_id[1]<< 8L)|
1677 ((unsigned long)a->session_id[2]<<16L)|
1678 ((unsigned long)a->session_id[3]<<24L);
1682 /* NB: If this function (or indeed the hash function which uses a sort of
1683 * coarser function than this one) is changed, ensure
1684 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1685 * able to construct an SSL_SESSION that will collide with any existing session
1686 * with a matching session ID. */
1687 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1689 if (a->ssl_version != b->ssl_version)
1691 if (a->session_id_length != b->session_id_length)
1693 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1696 /* These wrapper functions should remain rather than redeclaring
1697 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1698 * variable. The reason is that the functions aren't static, they're exposed via
1700 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1701 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1703 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1709 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1714 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1716 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1721 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1723 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1726 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1730 memset(ret,0,sizeof(SSL_CTX));
1734 ret->cert_store=NULL;
1735 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1736 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1737 ret->session_cache_head=NULL;
1738 ret->session_cache_tail=NULL;
1740 /* We take the system default */
1741 ret->session_timeout=meth->get_timeout();
1743 ret->new_session_cb=0;
1744 ret->remove_session_cb=0;
1745 ret->get_session_cb=0;
1746 ret->generate_session_id=0;
1748 memset((char *)&ret->stats,0,sizeof(ret->stats));
1751 ret->quiet_shutdown=0;
1753 /* ret->cipher=NULL;*/
1754 /* ret->s2->challenge=NULL;
1755 ret->master_key=NULL;
1757 ret->s2->conn_id=NULL; */
1759 ret->info_callback=NULL;
1761 ret->app_verify_callback=0;
1762 ret->app_verify_arg=NULL;
1764 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1766 ret->msg_callback=0;
1767 ret->msg_callback_arg=NULL;
1768 ret->verify_mode=SSL_VERIFY_NONE;
1770 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1772 ret->sid_ctx_length=0;
1773 ret->default_verify_callback=NULL;
1774 if ((ret->cert=ssl_cert_new()) == NULL)
1777 ret->default_passwd_callback=0;
1778 ret->default_passwd_callback_userdata=NULL;
1779 ret->client_cert_cb=0;
1780 ret->app_gen_cookie_cb=0;
1781 ret->app_verify_cookie_cb=0;
1783 ret->sessions=lh_SSL_SESSION_new();
1784 if (ret->sessions == NULL) goto err;
1785 ret->cert_store=X509_STORE_new();
1786 if (ret->cert_store == NULL) goto err;
1788 ssl_create_cipher_list(ret->method,
1789 &ret->cipher_list,&ret->cipher_list_by_id,
1790 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
1791 if (ret->cipher_list == NULL
1792 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1794 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1798 ret->param = X509_VERIFY_PARAM_new();
1802 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1804 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1807 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1809 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1812 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1814 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1818 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1821 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1823 ret->extra_certs=NULL;
1824 ret->comp_methods=SSL_COMP_get_compression_methods();
1826 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1828 #ifndef OPENSSL_NO_TLSEXT
1829 ret->tlsext_servername_callback = 0;
1830 ret->tlsext_servername_arg = NULL;
1831 /* Setup RFC4507 ticket keys */
1832 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1833 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1834 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1835 ret->options |= SSL_OP_NO_TICKET;
1837 ret->tlsext_status_cb = 0;
1838 ret->tlsext_status_arg = NULL;
1840 # ifndef OPENSSL_NO_NEXTPROTONEG
1841 ret->next_protos_advertised_cb = 0;
1842 ret->next_proto_select_cb = 0;
1845 #ifndef OPENSSL_NO_PSK
1846 ret->psk_identity_hint=NULL;
1847 ret->psk_client_callback=NULL;
1848 ret->psk_server_callback=NULL;
1850 #ifndef OPENSSL_NO_SRP
1851 SSL_CTX_SRP_CTX_init(ret);
1853 #ifndef OPENSSL_NO_BUF_FREELISTS
1854 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1855 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1856 if (!ret->rbuf_freelist)
1858 ret->rbuf_freelist->chunklen = 0;
1859 ret->rbuf_freelist->len = 0;
1860 ret->rbuf_freelist->head = NULL;
1861 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1862 if (!ret->wbuf_freelist)
1864 OPENSSL_free(ret->rbuf_freelist);
1867 ret->wbuf_freelist->chunklen = 0;
1868 ret->wbuf_freelist->len = 0;
1869 ret->wbuf_freelist->head = NULL;
1871 #ifndef OPENSSL_NO_ENGINE
1872 ret->client_cert_engine = NULL;
1873 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1874 #define eng_strx(x) #x
1875 #define eng_str(x) eng_strx(x)
1876 /* Use specific client engine automatically... ignore errors */
1879 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1883 ENGINE_load_builtin_engines();
1884 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1886 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1891 /* Default is to connect to non-RI servers. When RI is more widely
1892 * deployed might change this.
1894 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1898 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1900 if (ret != NULL) SSL_CTX_free(ret);
1905 static void SSL_COMP_free(SSL_COMP *comp)
1906 { OPENSSL_free(comp); }
1909 #ifndef OPENSSL_NO_BUF_FREELISTS
1911 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1913 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1914 for (ent = list->head; ent; ent = next)
1923 void SSL_CTX_free(SSL_CTX *a)
1927 if (a == NULL) return;
1929 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1931 REF_PRINT("SSL_CTX",a);
1937 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1943 X509_VERIFY_PARAM_free(a->param);
1946 * Free internal session cache. However: the remove_cb() may reference
1947 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1948 * after the sessions were flushed.
1949 * As the ex_data handling routines might also touch the session cache,
1950 * the most secure solution seems to be: empty (flush) the cache, then
1951 * free ex_data, then finally free the cache.
1952 * (See ticket [openssl.org #212].)
1954 if (a->sessions != NULL)
1955 SSL_CTX_flush_sessions(a,0);
1957 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1959 if (a->sessions != NULL)
1960 lh_SSL_SESSION_free(a->sessions);
1962 if (a->cert_store != NULL)
1963 X509_STORE_free(a->cert_store);
1964 if (a->cipher_list != NULL)
1965 sk_SSL_CIPHER_free(a->cipher_list);
1966 if (a->cipher_list_by_id != NULL)
1967 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1968 if (a->cert != NULL)
1969 ssl_cert_free(a->cert);
1970 if (a->client_CA != NULL)
1971 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1972 if (a->extra_certs != NULL)
1973 sk_X509_pop_free(a->extra_certs,X509_free);
1974 #if 0 /* This should never be done, since it removes a global database */
1975 if (a->comp_methods != NULL)
1976 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1978 a->comp_methods = NULL;
1981 if (a->srtp_profiles)
1982 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1984 #ifndef OPENSSL_NO_PSK
1985 if (a->psk_identity_hint)
1986 OPENSSL_free(a->psk_identity_hint);
1988 #ifndef OPENSSL_NO_SRP
1989 SSL_CTX_SRP_CTX_free(a);
1991 #ifndef OPENSSL_NO_ENGINE
1992 if (a->client_cert_engine)
1993 ENGINE_finish(a->client_cert_engine);
1996 #ifndef OPENSSL_NO_BUF_FREELISTS
1997 if (a->wbuf_freelist)
1998 ssl_buf_freelist_free(a->wbuf_freelist);
1999 if (a->rbuf_freelist)
2000 ssl_buf_freelist_free(a->rbuf_freelist);
2002 #ifndef OPENSSL_NO_TLSEXT
2003 # ifndef OPENSSL_NO_EC
2004 if (a->tlsext_ecpointformatlist)
2005 OPENSSL_free(a->tlsext_ecpointformatlist);
2006 if (a->tlsext_ellipticcurvelist)
2007 OPENSSL_free(a->tlsext_ellipticcurvelist);
2008 # endif /* OPENSSL_NO_EC */
2014 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2016 ctx->default_passwd_callback=cb;
2019 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2021 ctx->default_passwd_callback_userdata=u;
2024 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2026 ctx->app_verify_callback=cb;
2027 ctx->app_verify_arg=arg;
2030 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2032 ctx->verify_mode=mode;
2033 ctx->default_verify_callback=cb;
2036 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2038 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2041 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2043 ssl_cert_set_cert_cb(c->cert, cb, arg);
2046 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2048 ssl_cert_set_cert_cb(s->cert, cb, arg);
2051 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2054 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2055 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2056 int rsa_tmp_export,dh_tmp_export,kl;
2057 unsigned long mask_k,mask_a,emask_k,emask_a;
2058 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
2059 #ifndef OPENSSL_NO_ECDH
2063 EVP_PKEY *ecc_pkey = NULL;
2064 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2066 if (c == NULL) return;
2068 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2070 #ifndef OPENSSL_NO_RSA
2071 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2072 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2073 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2075 rsa_tmp=rsa_tmp_export=0;
2077 #ifndef OPENSSL_NO_DH
2078 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2079 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2080 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2082 dh_tmp=dh_tmp_export=0;
2085 #ifndef OPENSSL_NO_ECDH
2086 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2088 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2089 rsa_enc= cpk->valid_flags;
2090 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2091 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2092 rsa_sign= (cpk->valid_flags & CERT_PKEY_SIGN);
2093 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2094 dsa_sign= (cpk->valid_flags & CERT_PKEY_SIGN);
2095 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2096 dh_rsa= cpk->valid_flags;
2097 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2098 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2099 /* FIX THIS EAY EAY EAY */
2100 dh_dsa= cpk->valid_flags;
2101 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2102 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2103 have_ecc_cert= cpk->valid_flags;
2112 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2113 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2114 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2117 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2118 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2119 mask_k |= SSL_kGOST;
2120 mask_a |= SSL_aGOST01;
2122 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2123 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2124 mask_k |= SSL_kGOST;
2125 mask_a |= SSL_aGOST94;
2128 if (rsa_enc || (rsa_tmp && rsa_sign))
2130 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2134 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2135 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2136 (rsa_enc || rsa_sign || dsa_sign))
2138 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2139 (rsa_enc || rsa_sign || dsa_sign))
2149 if (dh_rsa) mask_k|=SSL_kDHr;
2150 if (dh_rsa_export) emask_k|=SSL_kDHr;
2152 if (dh_dsa) mask_k|=SSL_kDHd;
2153 if (dh_dsa_export) emask_k|=SSL_kDHd;
2155 if (emask_k & (SSL_kDHr|SSL_kDHd))
2158 if (rsa_enc || rsa_sign)
2173 #ifndef OPENSSL_NO_KRB5
2180 /* An ECC certificate may be usable for ECDH and/or
2181 * ECDSA cipher suites depending on the key usage extension.
2185 cpk = &c->pkeys[SSL_PKEY_ECC];
2187 /* This call populates extension flags (ex_flags) */
2188 X509_check_purpose(x, -1, 0);
2189 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2190 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2191 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2192 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2193 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2195 ecc_pkey = X509_get_pubkey(x);
2196 ecc_pkey_size = (ecc_pkey != NULL) ?
2197 EVP_PKEY_bits(ecc_pkey) : 0;
2198 EVP_PKEY_free(ecc_pkey);
2199 if ((x->sig_alg) && (x->sig_alg->algorithm))
2201 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2202 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2204 #ifndef OPENSSL_NO_ECDH
2208 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2212 if (ecc_pkey_size <= 163)
2214 emask_k|=SSL_kECDHr;
2219 if (pk_nid == NID_X9_62_id_ecPublicKey)
2223 if (ecc_pkey_size <= 163)
2225 emask_k|=SSL_kECDHe;
2231 #ifndef OPENSSL_NO_ECDSA
2235 emask_a|=SSL_aECDSA;
2240 #ifndef OPENSSL_NO_ECDH
2244 emask_k|=SSL_kEECDH;
2248 #ifndef OPENSSL_NO_PSK
2251 emask_k |= SSL_kPSK;
2252 emask_a |= SSL_aPSK;
2257 c->export_mask_k=emask_k;
2258 c->export_mask_a=emask_a;
2262 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2263 #define ku_reject(x, usage) \
2264 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2266 #ifndef OPENSSL_NO_EC
2268 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2270 unsigned long alg_k, alg_a;
2271 EVP_PKEY *pkey = NULL;
2273 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2274 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2276 alg_k = cs->algorithm_mkey;
2277 alg_a = cs->algorithm_auth;
2279 if (SSL_C_IS_EXPORT(cs))
2281 /* ECDH key length in export ciphers must be <= 163 bits */
2282 pkey = X509_get_pubkey(x);
2283 if (pkey == NULL) return 0;
2284 keysize = EVP_PKEY_bits(pkey);
2285 EVP_PKEY_free(pkey);
2286 if (keysize > 163) return 0;
2289 /* This call populates the ex_flags field correctly */
2290 X509_check_purpose(x, -1, 0);
2291 if ((x->sig_alg) && (x->sig_alg->algorithm))
2293 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2294 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2296 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2298 /* key usage, if present, must allow key agreement */
2299 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2301 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2304 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2306 /* signature alg must be ECDSA */
2307 if (pk_nid != NID_X9_62_id_ecPublicKey)
2309 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2313 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2315 /* signature alg must be RSA */
2317 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2319 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2324 if (alg_a & SSL_aECDSA)
2326 /* key usage, if present, must allow signing */
2327 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2329 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2334 return 1; /* all checks are ok */
2339 /* THIS NEEDS CLEANING UP */
2340 static int ssl_get_server_cert_index(SSL *s)
2342 unsigned long alg_k, alg_a;
2344 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2345 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2347 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2349 /* we don't need to look at SSL_kEECDH
2350 * since no certificate is needed for
2351 * anon ECDH and for authenticated
2352 * EECDH, the check for the auth
2353 * algorithm will set i correctly
2354 * NOTE: For ECDH-RSA, we need an ECC
2355 * not an RSA cert but for EECDH-RSA
2356 * we need an RSA cert. Placing the
2357 * checks for SSL_kECDH before RSA
2358 * checks ensures the correct cert is chosen.
2360 return SSL_PKEY_ECC;
2362 else if (alg_a & SSL_aECDSA)
2363 return SSL_PKEY_ECC;
2364 else if (alg_k & SSL_kDHr)
2365 return SSL_PKEY_DH_RSA;
2366 else if (alg_k & SSL_kDHd)
2367 return SSL_PKEY_DH_DSA;
2368 else if (alg_a & SSL_aDSS)
2369 return SSL_PKEY_DSA_SIGN;
2370 else if (alg_a & SSL_aRSA)
2372 if (s->cert->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2373 return SSL_PKEY_RSA_SIGN;
2375 return SSL_PKEY_RSA_ENC;
2377 else if (alg_a & SSL_aKRB5)
2378 /* VRS something else here? */
2380 else if (alg_a & SSL_aGOST94)
2381 return SSL_PKEY_GOST94;
2382 else if (alg_a & SSL_aGOST01)
2383 return SSL_PKEY_GOST01;
2384 else /* if (alg_a & SSL_aNULL) */
2386 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2391 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2397 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2399 i = ssl_get_server_cert_index(s);
2401 /* This may or may not be an error. */
2406 return &c->pkeys[i];
2409 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2411 unsigned long alg_a;
2415 alg_a = cipher->algorithm_auth;
2418 if ((alg_a & SSL_aDSS) &&
2419 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2420 idx = SSL_PKEY_DSA_SIGN;
2421 else if (alg_a & SSL_aRSA)
2423 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2424 idx = SSL_PKEY_RSA_SIGN;
2425 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2426 idx = SSL_PKEY_RSA_ENC;
2428 else if ((alg_a & SSL_aECDSA) &&
2429 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2433 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2437 *pmd = c->pkeys[idx].digest;
2438 return c->pkeys[idx].privatekey;
2441 #ifndef OPENSSL_NO_TLSEXT
2442 unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length)
2448 i = ssl_get_server_cert_index(s);
2454 if (c->pkeys[i].authz == NULL)
2456 *authz_length = c->pkeys[i].authz_length;
2458 return c->pkeys[i].authz;
2462 void ssl_update_cache(SSL *s,int mode)
2466 /* If the session_id_length is 0, we are not supposed to cache it,
2467 * and it would be rather hard to do anyway :-) */
2468 if (s->session->session_id_length == 0) return;
2470 i=s->session_ctx->session_cache_mode;
2471 if ((i & mode) && (!s->hit)
2472 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2473 || SSL_CTX_add_session(s->session_ctx,s->session))
2474 && (s->session_ctx->new_session_cb != NULL))
2476 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2477 if (!s->session_ctx->new_session_cb(s,s->session))
2478 SSL_SESSION_free(s->session);
2481 /* auto flush every 255 connections */
2482 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2483 ((i & mode) == mode))
2485 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2486 ?s->session_ctx->stats.sess_connect_good
2487 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2489 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2494 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2499 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2504 if (s->method != meth)
2506 if (s->handshake_func != NULL)
2507 conn=(s->handshake_func == s->method->ssl_connect);
2509 if (s->method->version == meth->version)
2513 s->method->ssl_free(s);
2515 ret=s->method->ssl_new(s);
2519 s->handshake_func=meth->ssl_connect;
2521 s->handshake_func=meth->ssl_accept;
2526 int SSL_get_error(const SSL *s,int i)
2532 if (i > 0) return(SSL_ERROR_NONE);
2534 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2535 * etc, where we do encode the error */
2536 if ((l=ERR_peek_error()) != 0)
2538 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2539 return(SSL_ERROR_SYSCALL);
2541 return(SSL_ERROR_SSL);
2544 if ((i < 0) && SSL_want_read(s))
2546 bio=SSL_get_rbio(s);
2547 if (BIO_should_read(bio))
2548 return(SSL_ERROR_WANT_READ);
2549 else if (BIO_should_write(bio))
2550 /* This one doesn't make too much sense ... We never try
2551 * to write to the rbio, and an application program where
2552 * rbio and wbio are separate couldn't even know what it
2554 * However if we ever set s->rwstate incorrectly
2555 * (so that we have SSL_want_read(s) instead of
2556 * SSL_want_write(s)) and rbio and wbio *are* the same,
2557 * this test works around that bug; so it might be safer
2559 return(SSL_ERROR_WANT_WRITE);
2560 else if (BIO_should_io_special(bio))
2562 reason=BIO_get_retry_reason(bio);
2563 if (reason == BIO_RR_CONNECT)
2564 return(SSL_ERROR_WANT_CONNECT);
2565 else if (reason == BIO_RR_ACCEPT)
2566 return(SSL_ERROR_WANT_ACCEPT);
2568 return(SSL_ERROR_SYSCALL); /* unknown */
2572 if ((i < 0) && SSL_want_write(s))
2574 bio=SSL_get_wbio(s);
2575 if (BIO_should_write(bio))
2576 return(SSL_ERROR_WANT_WRITE);
2577 else if (BIO_should_read(bio))
2578 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2579 return(SSL_ERROR_WANT_READ);
2580 else if (BIO_should_io_special(bio))
2582 reason=BIO_get_retry_reason(bio);
2583 if (reason == BIO_RR_CONNECT)
2584 return(SSL_ERROR_WANT_CONNECT);
2585 else if (reason == BIO_RR_ACCEPT)
2586 return(SSL_ERROR_WANT_ACCEPT);
2588 return(SSL_ERROR_SYSCALL);
2591 if ((i < 0) && SSL_want_x509_lookup(s))
2593 return(SSL_ERROR_WANT_X509_LOOKUP);
2598 if (s->version == SSL2_VERSION)
2600 /* assume it is the socket being closed */
2601 return(SSL_ERROR_ZERO_RETURN);
2605 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2606 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2607 return(SSL_ERROR_ZERO_RETURN);
2610 return(SSL_ERROR_SYSCALL);
2613 int SSL_do_handshake(SSL *s)
2617 if (s->handshake_func == NULL)
2619 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2623 s->method->ssl_renegotiate_check(s);
2625 if (SSL_in_init(s) || SSL_in_before(s))
2627 ret=s->handshake_func(s);
2632 /* For the next 2 functions, SSL_clear() sets shutdown and so
2633 * one of these calls will reset it */
2634 void SSL_set_accept_state(SSL *s)
2638 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2639 s->handshake_func=s->method->ssl_accept;
2640 /* clear the current cipher */
2641 ssl_clear_cipher_ctx(s);
2642 ssl_clear_hash_ctx(&s->read_hash);
2643 ssl_clear_hash_ctx(&s->write_hash);
2646 void SSL_set_connect_state(SSL *s)
2650 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2651 s->handshake_func=s->method->ssl_connect;
2652 /* clear the current cipher */
2653 ssl_clear_cipher_ctx(s);
2654 ssl_clear_hash_ctx(&s->read_hash);
2655 ssl_clear_hash_ctx(&s->write_hash);
2658 int ssl_undefined_function(SSL *s)
2660 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2664 int ssl_undefined_void_function(void)
2666 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2670 int ssl_undefined_const_function(const SSL *s)
2672 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2676 SSL_METHOD *ssl_bad_method(int ver)
2678 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2682 const char *SSL_get_version(const SSL *s)
2684 if (s->version == TLS1_2_VERSION)
2686 else if (s->version == TLS1_1_VERSION)
2688 else if (s->version == TLS1_VERSION)
2690 else if (s->version == SSL3_VERSION)
2692 else if (s->version == SSL2_VERSION)
2698 SSL *SSL_dup(SSL *s)
2700 STACK_OF(X509_NAME) *sk;
2705 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2708 ret->version = s->version;
2709 ret->type = s->type;
2710 ret->method = s->method;
2712 if (s->session != NULL)
2714 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2715 SSL_copy_session_id(ret,s);
2719 /* No session has been established yet, so we have to expect
2720 * that s->cert or ret->cert will be changed later --
2721 * they should not both point to the same object,
2722 * and thus we can't use SSL_copy_session_id. */
2724 ret->method->ssl_free(ret);
2725 ret->method = s->method;
2726 ret->method->ssl_new(ret);
2728 if (s->cert != NULL)
2730 if (ret->cert != NULL)
2732 ssl_cert_free(ret->cert);
2734 ret->cert = ssl_cert_dup(s->cert);
2735 if (ret->cert == NULL)
2739 SSL_set_session_id_context(ret,
2740 s->sid_ctx, s->sid_ctx_length);
2743 ret->options=s->options;
2745 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2746 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2747 ret->msg_callback = s->msg_callback;
2748 ret->msg_callback_arg = s->msg_callback_arg;
2749 SSL_set_verify(ret,SSL_get_verify_mode(s),
2750 SSL_get_verify_callback(s));
2751 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2752 ret->generate_session_id = s->generate_session_id;
2754 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2756 ret->debug=s->debug;
2758 /* copy app data, a little dangerous perhaps */
2759 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2762 /* setup rbio, and wbio */
2763 if (s->rbio != NULL)
2765 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2768 if (s->wbio != NULL)
2770 if (s->wbio != s->rbio)
2772 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2776 ret->wbio=ret->rbio;
2778 ret->rwstate = s->rwstate;
2779 ret->in_handshake = s->in_handshake;
2780 ret->handshake_func = s->handshake_func;
2781 ret->server = s->server;
2782 ret->renegotiate = s->renegotiate;
2783 ret->new_session = s->new_session;
2784 ret->quiet_shutdown = s->quiet_shutdown;
2785 ret->shutdown=s->shutdown;
2786 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2787 ret->rstate=s->rstate;
2788 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2791 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2793 /* dup the cipher_list and cipher_list_by_id stacks */
2794 if (s->cipher_list != NULL)
2796 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2799 if (s->cipher_list_by_id != NULL)
2800 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2804 /* Dup the client_CA list */
2805 if (s->client_CA != NULL)
2807 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2809 for (i=0; i<sk_X509_NAME_num(sk); i++)
2811 xn=sk_X509_NAME_value(sk,i);
2812 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2823 if (ret != NULL) SSL_free(ret);
2829 void ssl_clear_cipher_ctx(SSL *s)
2831 if (s->enc_read_ctx != NULL)
2833 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2834 OPENSSL_free(s->enc_read_ctx);
2835 s->enc_read_ctx=NULL;
2837 if (s->enc_write_ctx != NULL)
2839 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2840 OPENSSL_free(s->enc_write_ctx);
2841 s->enc_write_ctx=NULL;
2843 #ifndef OPENSSL_NO_COMP
2844 if (s->expand != NULL)
2846 COMP_CTX_free(s->expand);
2849 if (s->compress != NULL)
2851 COMP_CTX_free(s->compress);
2857 /* Fix this function so that it takes an optional type parameter */
2858 X509 *SSL_get_certificate(const SSL *s)
2860 if (s->cert != NULL)
2861 return(s->cert->key->x509);
2866 /* Fix this function so that it takes an optional type parameter */
2867 EVP_PKEY *SSL_get_privatekey(SSL *s)
2869 if (s->cert != NULL)
2870 return(s->cert->key->privatekey);
2875 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2877 if ((s->session != NULL) && (s->session->cipher != NULL))
2878 return(s->session->cipher);
2881 #ifdef OPENSSL_NO_COMP
2882 const void *SSL_get_current_compression(SSL *s)
2886 const void *SSL_get_current_expansion(SSL *s)
2892 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2894 if (s->compress != NULL)
2895 return(s->compress->meth);
2899 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2901 if (s->expand != NULL)
2902 return(s->expand->meth);
2907 int ssl_init_wbio_buffer(SSL *s,int push)
2911 if (s->bbio == NULL)
2913 bbio=BIO_new(BIO_f_buffer());
2914 if (bbio == NULL) return(0);
2920 if (s->bbio == s->wbio)
2921 s->wbio=BIO_pop(s->wbio);
2923 (void)BIO_reset(bbio);
2924 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2925 if (!BIO_set_read_buffer_size(bbio,1))
2927 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2932 if (s->wbio != bbio)
2933 s->wbio=BIO_push(bbio,s->wbio);
2937 if (s->wbio == bbio)
2938 s->wbio=BIO_pop(bbio);
2943 void ssl_free_wbio_buffer(SSL *s)
2945 if (s->bbio == NULL) return;
2947 if (s->bbio == s->wbio)
2949 /* remove buffering */
2950 s->wbio=BIO_pop(s->wbio);
2951 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2952 assert(s->wbio != NULL);
2959 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2961 ctx->quiet_shutdown=mode;
2964 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2966 return(ctx->quiet_shutdown);
2969 void SSL_set_quiet_shutdown(SSL *s,int mode)
2971 s->quiet_shutdown=mode;
2974 int SSL_get_quiet_shutdown(const SSL *s)
2976 return(s->quiet_shutdown);
2979 void SSL_set_shutdown(SSL *s,int mode)
2984 int SSL_get_shutdown(const SSL *s)
2986 return(s->shutdown);
2989 int SSL_version(const SSL *s)
2994 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2999 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3001 if (ssl->ctx == ctx)
3003 #ifndef OPENSSL_NO_TLSEXT
3005 ctx = ssl->initial_ctx;
3007 if (ssl->cert != NULL)
3008 ssl_cert_free(ssl->cert);
3009 ssl->cert = ssl_cert_dup(ctx->cert);
3010 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3011 if (ssl->ctx != NULL)
3012 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3017 #ifndef OPENSSL_NO_STDIO
3018 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3020 return(X509_STORE_set_default_paths(ctx->cert_store));
3023 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3026 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3030 void SSL_set_info_callback(SSL *ssl,
3031 void (*cb)(const SSL *ssl,int type,int val))
3033 ssl->info_callback=cb;
3036 /* One compiler (Diab DCC) doesn't like argument names in returned
3037 function pointer. */
3038 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3040 return ssl->info_callback;
3043 int SSL_state(const SSL *ssl)
3048 void SSL_set_state(SSL *ssl, int state)
3053 void SSL_set_verify_result(SSL *ssl,long arg)
3055 ssl->verify_result=arg;
3058 long SSL_get_verify_result(const SSL *ssl)
3060 return(ssl->verify_result);
3063 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3064 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3066 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3067 new_func, dup_func, free_func);
3070 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3072 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3075 void *SSL_get_ex_data(const SSL *s,int idx)
3077 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3080 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3081 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3083 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3084 new_func, dup_func, free_func);
3087 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3089 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3092 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3094 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3102 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3104 return(ctx->cert_store);
3107 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3109 if (ctx->cert_store != NULL)
3110 X509_STORE_free(ctx->cert_store);
3111 ctx->cert_store=store;
3114 int SSL_want(const SSL *s)
3120 * \brief Set the callback for generating temporary RSA keys.
3121 * \param ctx the SSL context.
3122 * \param cb the callback
3125 #ifndef OPENSSL_NO_RSA
3126 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3130 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3133 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3137 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3143 * \brief The RSA temporary key callback function.
3144 * \param ssl the SSL session.
3145 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3146 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3147 * of the required key in bits.
3148 * \return the temporary RSA key.
3149 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3152 RSA *cb(SSL *ssl,int is_export,int keylength)
3157 * \brief Set the callback for generating temporary DH keys.
3158 * \param ctx the SSL context.
3159 * \param dh the callback
3162 #ifndef OPENSSL_NO_DH
3163 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3166 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3169 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3172 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3176 #ifndef OPENSSL_NO_ECDH
3177 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3180 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3183 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3186 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3190 #ifndef OPENSSL_NO_PSK
3191 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3193 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3195 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3198 if (ctx->psk_identity_hint != NULL)
3199 OPENSSL_free(ctx->psk_identity_hint);
3200 if (identity_hint != NULL)
3202 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3203 if (ctx->psk_identity_hint == NULL)
3207 ctx->psk_identity_hint = NULL;
3211 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3216 if (s->session == NULL)
3217 return 1; /* session not created yet, ignored */
3219 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3221 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3224 if (s->session->psk_identity_hint != NULL)
3225 OPENSSL_free(s->session->psk_identity_hint);
3226 if (identity_hint != NULL)
3228 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3229 if (s->session->psk_identity_hint == NULL)
3233 s->session->psk_identity_hint = NULL;
3237 const char *SSL_get_psk_identity_hint(const SSL *s)
3239 if (s == NULL || s->session == NULL)
3241 return(s->session->psk_identity_hint);
3244 const char *SSL_get_psk_identity(const SSL *s)
3246 if (s == NULL || s->session == NULL)
3248 return(s->session->psk_identity);
3251 void SSL_set_psk_client_callback(SSL *s,
3252 unsigned int (*cb)(SSL *ssl, const char *hint,
3253 char *identity, unsigned int max_identity_len, unsigned char *psk,
3254 unsigned int max_psk_len))
3256 s->psk_client_callback = cb;
3259 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3260 unsigned int (*cb)(SSL *ssl, const char *hint,
3261 char *identity, unsigned int max_identity_len, unsigned char *psk,
3262 unsigned int max_psk_len))
3264 ctx->psk_client_callback = cb;
3267 void SSL_set_psk_server_callback(SSL *s,
3268 unsigned int (*cb)(SSL *ssl, const char *identity,
3269 unsigned char *psk, unsigned int max_psk_len))
3271 s->psk_server_callback = cb;
3274 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3275 unsigned int (*cb)(SSL *ssl, const char *identity,
3276 unsigned char *psk, unsigned int max_psk_len))
3278 ctx->psk_server_callback = cb;
3282 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))
3284 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3286 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))
3288 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3291 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3292 int (*cb)(SSL *ssl, int is_forward_secure))
3294 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3295 (void (*)(void))cb);
3297 void SSL_set_not_resumable_session_callback(SSL *ssl,
3298 int (*cb)(SSL *ssl, int is_forward_secure))
3300 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3301 (void (*)(void))cb);
3304 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3305 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3306 * any. If EVP_MD pointer is passed, initializes ctx with this md
3307 * Returns newly allocated ctx;
3310 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3312 ssl_clear_hash_ctx(hash);
3313 *hash = EVP_MD_CTX_create();
3314 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3317 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3320 if (*hash) EVP_MD_CTX_destroy(*hash);
3324 void SSL_set_debug(SSL *s, int debug)
3329 int SSL_cache_hit(SSL *s)
3334 int SSL_is_server(SSL *s)
3339 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3340 #include "../crypto/bio/bss_file.c"
3343 IMPLEMENT_STACK_OF(SSL_CIPHER)
3344 IMPLEMENT_STACK_OF(SSL_COMP)
3345 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,