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 <openssl/crypto.h>
150 #include "ssl_locl.h"
151 #include "kssl_lcl.h"
152 #include <openssl/objects.h>
153 #include <openssl/lhash.h>
154 #include <openssl/x509v3.h>
155 #include <openssl/rand.h>
156 #include <openssl/ocsp.h>
157 #ifndef OPENSSL_NO_DH
158 #include <openssl/dh.h>
160 #ifndef OPENSSL_NO_ENGINE
161 #include <openssl/engine.h>
164 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
166 SSL3_ENC_METHOD ssl3_undef_enc_method={
167 /* evil casts, but these functions are only called if there's a library bug */
168 (int (*)(SSL *,int))ssl_undefined_function,
169 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
170 ssl_undefined_function,
171 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
172 (int (*)(SSL*, int))ssl_undefined_function,
173 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
174 0, /* finish_mac_length */
175 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
176 NULL, /* client_finished_label */
177 0, /* client_finished_label_len */
178 NULL, /* server_finished_label */
179 0, /* server_finished_label_len */
180 (int (*)(int))ssl_undefined_function,
181 (int (*)(SSL *, unsigned char *, size_t, const char *,
182 size_t, const unsigned char *, size_t,
183 int use_context)) ssl_undefined_function,
186 int SSL_clear(SSL *s)
189 if (s->method == NULL)
191 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
195 if (ssl_clear_bad_session(s))
197 SSL_SESSION_free(s->session);
205 #if 0 /* Disabled since version 1.10 of this file (early return not
206 * needed because SSL_clear is not called when doing renegotiation) */
207 /* This is set if we are doing dynamic renegotiation so keep
208 * the old cipher. It is sort of a SSL_clear_lite :-) */
209 if (s->renegotiate) return(1);
213 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
220 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
222 s->version=s->method->version;
223 s->client_version=s->version;
224 s->rwstate=SSL_NOTHING;
225 s->rstate=SSL_ST_READ_HEADER;
227 s->read_ahead=s->ctx->read_ahead;
230 if (s->init_buf != NULL)
232 BUF_MEM_free(s->init_buf);
236 ssl_clear_cipher_ctx(s);
237 ssl_clear_hash_ctx(&s->read_hash);
238 ssl_clear_hash_ctx(&s->write_hash);
243 /* Check to see if we were changed into a different method, if
244 * so, revert back if we are not doing session-id reuse. */
245 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
247 s->method->ssl_free(s);
248 s->method=s->ctx->method;
249 if (!s->method->ssl_new(s))
254 s->method->ssl_clear(s);
258 /** Used to change an SSL_CTXs default SSL method type */
259 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
261 STACK_OF(SSL_CIPHER) *sk;
265 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
266 &(ctx->cipher_list_by_id),
267 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
268 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
270 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
276 SSL *SSL_new(SSL_CTX *ctx)
282 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
285 if (ctx->method == NULL)
287 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
291 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
292 if (s == NULL) goto err;
293 memset(s,0,sizeof(SSL));
295 #ifndef OPENSSL_NO_KRB5
296 s->kssl_ctx = kssl_ctx_new();
297 #endif /* OPENSSL_NO_KRB5 */
299 s->options=ctx->options;
301 s->max_cert_list=ctx->max_cert_list;
303 if (ctx->cert != NULL)
305 /* Earlier library versions used to copy the pointer to
306 * the CERT, not its contents; only when setting new
307 * parameters for the per-SSL copy, ssl_cert_new would be
308 * called (and the direct reference to the per-SSL_CTX
309 * settings would be lost, but those still were indirectly
310 * accessed for various purposes, and for that reason they
311 * used to be known as s->ctx->default_cert).
312 * Now we don't look at the SSL_CTX's CERT after having
313 * duplicated it once. */
315 s->cert = ssl_cert_dup(ctx->cert);
320 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
322 s->read_ahead=ctx->read_ahead;
323 s->msg_callback=ctx->msg_callback;
324 s->msg_callback_arg=ctx->msg_callback_arg;
325 s->verify_mode=ctx->verify_mode;
326 s->not_resumable_session_cb=ctx->not_resumable_session_cb;
328 s->verify_depth=ctx->verify_depth;
330 s->sid_ctx_length=ctx->sid_ctx_length;
331 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
332 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
333 s->verify_callback=ctx->default_verify_callback;
334 s->generate_session_id=ctx->generate_session_id;
336 s->param = X509_VERIFY_PARAM_new();
339 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
341 s->purpose = ctx->purpose;
342 s->trust = ctx->trust;
344 s->quiet_shutdown=ctx->quiet_shutdown;
345 s->max_send_fragment = ctx->max_send_fragment;
347 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
349 #ifndef OPENSSL_NO_TLSEXT
350 s->tlsext_debug_cb = 0;
351 s->tlsext_debug_arg = NULL;
352 s->tlsext_ticket_expected = 0;
353 s->tlsext_status_type = -1;
354 s->tlsext_status_expected = 0;
355 s->tlsext_ocsp_ids = NULL;
356 s->tlsext_ocsp_exts = NULL;
357 s->tlsext_ocsp_resp = NULL;
358 s->tlsext_ocsp_resplen = -1;
359 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
361 #ifndef OPENSSL_NO_EC
362 if (ctx->tlsext_ecpointformatlist)
364 s->tlsext_ecpointformatlist =
365 BUF_memdup(ctx->tlsext_ecpointformatlist,
366 ctx->tlsext_ecpointformatlist_length);
367 if (!s->tlsext_ecpointformatlist)
369 s->tlsext_ecpointformatlist_length =
370 ctx->tlsext_ecpointformatlist_length;
372 if (ctx->tlsext_ellipticcurvelist)
374 s->tlsext_ellipticcurvelist =
375 BUF_memdup(ctx->tlsext_ellipticcurvelist,
376 ctx->tlsext_ellipticcurvelist_length);
377 if (!s->tlsext_ellipticcurvelist)
379 s->tlsext_ellipticcurvelist_length =
380 ctx->tlsext_ellipticcurvelist_length;
383 # ifndef OPENSSL_NO_NEXTPROTONEG
384 s->next_proto_negotiated = NULL;
388 s->verify_result=X509_V_OK;
390 s->method=ctx->method;
392 if (!s->method->ssl_new(s))
396 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
400 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
402 #ifndef OPENSSL_NO_PSK
403 s->psk_client_callback=ctx->psk_client_callback;
404 s->psk_server_callback=ctx->psk_server_callback;
412 ssl_cert_free(s->cert);
414 SSL_CTX_free(s->ctx); /* decrement reference count */
417 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
421 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
422 unsigned int sid_ctx_len)
424 if(sid_ctx_len > sizeof ctx->sid_ctx)
426 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
429 ctx->sid_ctx_length=sid_ctx_len;
430 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
435 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
436 unsigned int sid_ctx_len)
438 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
440 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
443 ssl->sid_ctx_length=sid_ctx_len;
444 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
449 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
451 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
452 ctx->generate_session_id = cb;
453 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
457 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
459 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
460 ssl->generate_session_id = cb;
461 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
465 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
468 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
469 * we can "construct" a session to give us the desired check - ie. to
470 * find if there's a session in the hash table that would conflict with
471 * any new session built out of this id/id_len and the ssl_version in
472 * use by this SSL. */
475 if(id_len > sizeof r.session_id)
478 r.ssl_version = ssl->version;
479 r.session_id_length = id_len;
480 memcpy(r.session_id, id, id_len);
481 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
482 * callback is calling us to check the uniqueness of a shorter ID, it
483 * must be compared as a padded-out ID because that is what it will be
484 * converted to when the callback has finished choosing it. */
485 if((r.ssl_version == SSL2_VERSION) &&
486 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
488 memset(r.session_id + id_len, 0,
489 SSL2_SSL_SESSION_ID_LENGTH - id_len);
490 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
493 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
494 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
495 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
499 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
501 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
504 int SSL_set_purpose(SSL *s, int purpose)
506 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
509 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
511 return X509_VERIFY_PARAM_set_trust(s->param, trust);
514 int SSL_set_trust(SSL *s, int trust)
516 return X509_VERIFY_PARAM_set_trust(s->param, trust);
519 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
521 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
524 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
526 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
529 void SSL_certs_clear(SSL *s)
532 ssl_cert_clear_certs(s->cert);
535 void SSL_free(SSL *s)
542 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
550 fprintf(stderr,"SSL_free, bad reference count\n");
556 X509_VERIFY_PARAM_free(s->param);
558 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
562 /* If the buffering BIO is in place, pop it off */
563 if (s->bbio == s->wbio)
565 s->wbio=BIO_pop(s->wbio);
571 BIO_free_all(s->rbio);
572 if ((s->wbio != NULL) && (s->wbio != s->rbio))
573 BIO_free_all(s->wbio);
575 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
577 /* add extra stuff */
578 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
579 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
581 /* Make the next call work :-) */
582 if (s->session != NULL)
584 ssl_clear_bad_session(s);
585 SSL_SESSION_free(s->session);
588 ssl_clear_cipher_ctx(s);
589 ssl_clear_hash_ctx(&s->read_hash);
590 ssl_clear_hash_ctx(&s->write_hash);
592 if (s->cert != NULL) ssl_cert_free(s->cert);
593 /* Free up if allocated */
595 #ifndef OPENSSL_NO_TLSEXT
596 if (s->tlsext_hostname)
597 OPENSSL_free(s->tlsext_hostname);
598 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
599 #ifndef OPENSSL_NO_EC
600 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
601 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
602 #endif /* OPENSSL_NO_EC */
603 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
604 if (s->tlsext_ocsp_exts)
605 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
606 X509_EXTENSION_free);
607 if (s->tlsext_ocsp_ids)
608 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
609 if (s->tlsext_ocsp_resp)
610 OPENSSL_free(s->tlsext_ocsp_resp);
613 if (s->client_CA != NULL)
614 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
616 if (s->method != NULL) s->method->ssl_free(s);
618 if (s->ctx) SSL_CTX_free(s->ctx);
620 #ifndef OPENSSL_NO_KRB5
621 if (s->kssl_ctx != NULL)
622 kssl_ctx_free(s->kssl_ctx);
623 #endif /* OPENSSL_NO_KRB5 */
625 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
626 if (s->next_proto_negotiated)
627 OPENSSL_free(s->next_proto_negotiated);
630 if (s->srtp_profiles)
631 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
636 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
638 /* If the output buffering BIO is still in place, remove it
642 if (s->wbio == s->bbio)
644 s->wbio=s->wbio->next_bio;
645 s->bbio->next_bio=NULL;
648 if ((s->rbio != NULL) && (s->rbio != rbio))
649 BIO_free_all(s->rbio);
650 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
651 BIO_free_all(s->wbio);
656 BIO *SSL_get_rbio(const SSL *s)
659 BIO *SSL_get_wbio(const SSL *s)
662 int SSL_get_fd(const SSL *s)
664 return(SSL_get_rfd(s));
667 int SSL_get_rfd(const SSL *s)
673 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
679 int SSL_get_wfd(const SSL *s)
685 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
691 #ifndef OPENSSL_NO_SOCK
692 int SSL_set_fd(SSL *s,int fd)
697 bio=BIO_new(BIO_s_socket());
701 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
704 BIO_set_fd(bio,fd,BIO_NOCLOSE);
705 SSL_set_bio(s,bio,bio);
711 int SSL_set_wfd(SSL *s,int fd)
716 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
717 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
719 bio=BIO_new(BIO_s_socket());
722 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
723 BIO_set_fd(bio,fd,BIO_NOCLOSE);
724 SSL_set_bio(s,SSL_get_rbio(s),bio);
727 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
733 int SSL_set_rfd(SSL *s,int fd)
738 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
739 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
741 bio=BIO_new(BIO_s_socket());
745 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
748 BIO_set_fd(bio,fd,BIO_NOCLOSE);
749 SSL_set_bio(s,bio,SSL_get_wbio(s));
752 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
760 /* return length of latest Finished message we sent, copy to 'buf' */
761 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
767 ret = s->s3->tmp.finish_md_len;
770 memcpy(buf, s->s3->tmp.finish_md, count);
775 /* return length of latest Finished message we expected, copy to 'buf' */
776 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
782 ret = s->s3->tmp.peer_finish_md_len;
785 memcpy(buf, s->s3->tmp.peer_finish_md, count);
791 int SSL_get_verify_mode(const SSL *s)
793 return(s->verify_mode);
796 int SSL_get_verify_depth(const SSL *s)
798 return X509_VERIFY_PARAM_get_depth(s->param);
801 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
803 return(s->verify_callback);
806 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
808 return(ctx->verify_mode);
811 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
813 return X509_VERIFY_PARAM_get_depth(ctx->param);
816 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
818 return(ctx->default_verify_callback);
821 void SSL_set_verify(SSL *s,int mode,
822 int (*callback)(int ok,X509_STORE_CTX *ctx))
825 if (callback != NULL)
826 s->verify_callback=callback;
829 void SSL_set_verify_depth(SSL *s,int depth)
831 X509_VERIFY_PARAM_set_depth(s->param, depth);
834 void SSL_set_read_ahead(SSL *s,int yes)
839 int SSL_get_read_ahead(const SSL *s)
841 return(s->read_ahead);
844 int SSL_pending(const SSL *s)
846 /* SSL_pending cannot work properly if read-ahead is enabled
847 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
848 * and it is impossible to fix since SSL_pending cannot report
849 * errors that may be observed while scanning the new data.
850 * (Note that SSL_pending() is often used as a boolean value,
851 * so we'd better not return -1.)
853 return(s->method->ssl_pending(s));
856 X509 *SSL_get_peer_certificate(const SSL *s)
860 if ((s == NULL) || (s->session == NULL))
865 if (r == NULL) return(r);
867 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
872 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
876 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
879 r=s->session->sess_cert->cert_chain;
881 /* If we are a client, cert_chain includes the peer's own
882 * certificate; if we are a server, it does not. */
887 /* Now in theory, since the calling process own 't' it should be safe to
888 * modify. We need to be able to read f without being hassled */
889 void SSL_copy_session_id(SSL *t,const SSL *f)
893 /* Do we need to to SSL locking? */
894 SSL_set_session(t,SSL_get_session(f));
896 /* what if we are setup as SSLv2 but want to talk SSLv3 or
898 if (t->method != f->method)
900 t->method->ssl_free(t); /* cleanup current */
901 t->method=f->method; /* change method */
902 t->method->ssl_new(t); /* setup new */
908 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
913 if (tmp != NULL) ssl_cert_free(tmp);
914 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
917 /* Fix this so it checks all the valid key/cert options */
918 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
920 if ( (ctx == NULL) ||
921 (ctx->cert == NULL) ||
922 (ctx->cert->key->x509 == NULL))
924 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
927 if (ctx->cert->key->privatekey == NULL)
929 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
932 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
935 /* Fix this function so that it takes an optional type parameter */
936 int SSL_check_private_key(const SSL *ssl)
940 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
943 if (ssl->cert == NULL)
945 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
948 if (ssl->cert->key->x509 == NULL)
950 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
953 if (ssl->cert->key->privatekey == NULL)
955 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
958 return(X509_check_private_key(ssl->cert->key->x509,
959 ssl->cert->key->privatekey));
962 int SSL_accept(SSL *s)
964 if (s->handshake_func == 0)
965 /* Not properly initialized yet */
966 SSL_set_accept_state(s);
968 return(s->method->ssl_accept(s));
971 int SSL_connect(SSL *s)
973 if (s->handshake_func == 0)
974 /* Not properly initialized yet */
975 SSL_set_connect_state(s);
977 return(s->method->ssl_connect(s));
980 long SSL_get_default_timeout(const SSL *s)
982 return(s->method->get_timeout());
985 int SSL_read(SSL *s,void *buf,int num)
987 if (s->handshake_func == 0)
989 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
993 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
995 s->rwstate=SSL_NOTHING;
998 return(s->method->ssl_read(s,buf,num));
1001 int SSL_peek(SSL *s,void *buf,int num)
1003 if (s->handshake_func == 0)
1005 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1009 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1013 return(s->method->ssl_peek(s,buf,num));
1016 int SSL_write(SSL *s,const void *buf,int num)
1018 if (s->handshake_func == 0)
1020 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1024 if (s->shutdown & SSL_SENT_SHUTDOWN)
1026 s->rwstate=SSL_NOTHING;
1027 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1030 return(s->method->ssl_write(s,buf,num));
1033 int SSL_shutdown(SSL *s)
1035 /* Note that this function behaves differently from what one might
1036 * expect. Return values are 0 for no success (yet),
1037 * 1 for success; but calling it once is usually not enough,
1038 * even if blocking I/O is used (see ssl3_shutdown).
1041 if (s->handshake_func == 0)
1043 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1047 if ((s != NULL) && !SSL_in_init(s))
1048 return(s->method->ssl_shutdown(s));
1053 int SSL_renegotiate(SSL *s)
1055 if (s->renegotiate == 0)
1060 return(s->method->ssl_renegotiate(s));
1063 int SSL_renegotiate_abbreviated(SSL *s)
1065 if (s->renegotiate == 0)
1070 return(s->method->ssl_renegotiate(s));
1073 int SSL_renegotiate_pending(SSL *s)
1075 /* becomes true when negotiation is requested;
1076 * false again once a handshake has finished */
1077 return (s->renegotiate != 0);
1080 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1086 case SSL_CTRL_GET_READ_AHEAD:
1087 return(s->read_ahead);
1088 case SSL_CTRL_SET_READ_AHEAD:
1093 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1094 s->msg_callback_arg = parg;
1097 case SSL_CTRL_OPTIONS:
1098 return(s->options|=larg);
1099 case SSL_CTRL_CLEAR_OPTIONS:
1100 return(s->options&=~larg);
1102 return(s->mode|=larg);
1103 case SSL_CTRL_CLEAR_MODE:
1104 return(s->mode &=~larg);
1105 case SSL_CTRL_GET_MAX_CERT_LIST:
1106 return(s->max_cert_list);
1107 case SSL_CTRL_SET_MAX_CERT_LIST:
1109 s->max_cert_list=larg;
1111 case SSL_CTRL_SET_MTU:
1112 #ifndef OPENSSL_NO_DTLS1
1113 if (larg < (long)dtls1_min_mtu())
1117 if (SSL_version(s) == DTLS1_VERSION ||
1118 SSL_version(s) == DTLS1_BAD_VER)
1124 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1125 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1127 s->max_send_fragment = larg;
1129 case SSL_CTRL_GET_RI_SUPPORT:
1131 return s->s3->send_connection_binding;
1134 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1138 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1142 case SSL_CTRL_SET_MSG_CALLBACK:
1143 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1147 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1151 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1153 return ctx->sessions;
1156 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1162 case SSL_CTRL_GET_READ_AHEAD:
1163 return(ctx->read_ahead);
1164 case SSL_CTRL_SET_READ_AHEAD:
1166 ctx->read_ahead=larg;
1169 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1170 ctx->msg_callback_arg = parg;
1173 case SSL_CTRL_GET_MAX_CERT_LIST:
1174 return(ctx->max_cert_list);
1175 case SSL_CTRL_SET_MAX_CERT_LIST:
1176 l=ctx->max_cert_list;
1177 ctx->max_cert_list=larg;
1180 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1181 l=ctx->session_cache_size;
1182 ctx->session_cache_size=larg;
1184 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1185 return(ctx->session_cache_size);
1186 case SSL_CTRL_SET_SESS_CACHE_MODE:
1187 l=ctx->session_cache_mode;
1188 ctx->session_cache_mode=larg;
1190 case SSL_CTRL_GET_SESS_CACHE_MODE:
1191 return(ctx->session_cache_mode);
1193 case SSL_CTRL_SESS_NUMBER:
1194 return(lh_SSL_SESSION_num_items(ctx->sessions));
1195 case SSL_CTRL_SESS_CONNECT:
1196 return(ctx->stats.sess_connect);
1197 case SSL_CTRL_SESS_CONNECT_GOOD:
1198 return(ctx->stats.sess_connect_good);
1199 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1200 return(ctx->stats.sess_connect_renegotiate);
1201 case SSL_CTRL_SESS_ACCEPT:
1202 return(ctx->stats.sess_accept);
1203 case SSL_CTRL_SESS_ACCEPT_GOOD:
1204 return(ctx->stats.sess_accept_good);
1205 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1206 return(ctx->stats.sess_accept_renegotiate);
1207 case SSL_CTRL_SESS_HIT:
1208 return(ctx->stats.sess_hit);
1209 case SSL_CTRL_SESS_CB_HIT:
1210 return(ctx->stats.sess_cb_hit);
1211 case SSL_CTRL_SESS_MISSES:
1212 return(ctx->stats.sess_miss);
1213 case SSL_CTRL_SESS_TIMEOUTS:
1214 return(ctx->stats.sess_timeout);
1215 case SSL_CTRL_SESS_CACHE_FULL:
1216 return(ctx->stats.sess_cache_full);
1217 case SSL_CTRL_OPTIONS:
1218 return(ctx->options|=larg);
1219 case SSL_CTRL_CLEAR_OPTIONS:
1220 return(ctx->options&=~larg);
1222 return(ctx->mode|=larg);
1223 case SSL_CTRL_CLEAR_MODE:
1224 return(ctx->mode&=~larg);
1225 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1226 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1228 ctx->max_send_fragment = larg;
1231 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1235 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1239 case SSL_CTRL_SET_MSG_CALLBACK:
1240 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1244 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1248 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1256 return((l > 0)?1:-1);
1259 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1260 const SSL_CIPHER * const *bp)
1264 l=(*ap)->id-(*bp)->id;
1268 return((l > 0)?1:-1);
1271 /** return a STACK of the ciphers available for the SSL and in order of
1273 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1277 if (s->cipher_list != NULL)
1279 return(s->cipher_list);
1281 else if ((s->ctx != NULL) &&
1282 (s->ctx->cipher_list != NULL))
1284 return(s->ctx->cipher_list);
1290 /** return a STACK of the ciphers available for the SSL and in order of
1292 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1296 if (s->cipher_list_by_id != NULL)
1298 return(s->cipher_list_by_id);
1300 else if ((s->ctx != NULL) &&
1301 (s->ctx->cipher_list_by_id != NULL))
1303 return(s->ctx->cipher_list_by_id);
1309 /** The old interface to get the same thing as SSL_get_ciphers() */
1310 const char *SSL_get_cipher_list(const SSL *s,int n)
1313 STACK_OF(SSL_CIPHER) *sk;
1315 if (s == NULL) return(NULL);
1316 sk=SSL_get_ciphers(s);
1317 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1319 c=sk_SSL_CIPHER_value(sk,n);
1320 if (c == NULL) return(NULL);
1324 /** specify the ciphers to be used by default by the SSL_CTX */
1325 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1327 STACK_OF(SSL_CIPHER) *sk;
1329 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1330 &ctx->cipher_list_by_id,str);
1331 /* ssl_create_cipher_list may return an empty stack if it
1332 * was unable to find a cipher matching the given rule string
1333 * (for example if the rule string specifies a cipher which
1334 * has been disabled). This is not an error as far as
1335 * ssl_create_cipher_list is concerned, and hence
1336 * ctx->cipher_list and ctx->cipher_list_by_id has been
1340 else if (sk_SSL_CIPHER_num(sk) == 0)
1342 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1348 /** specify the ciphers to be used by the SSL */
1349 int SSL_set_cipher_list(SSL *s,const char *str)
1351 STACK_OF(SSL_CIPHER) *sk;
1353 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1354 &s->cipher_list_by_id,str);
1355 /* see comment in SSL_CTX_set_cipher_list */
1358 else if (sk_SSL_CIPHER_num(sk) == 0)
1360 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1366 /* works well for SSLv2, not so good for SSLv3 */
1367 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1370 STACK_OF(SSL_CIPHER) *sk;
1374 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1379 sk=s->session->ciphers;
1380 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1384 c=sk_SSL_CIPHER_value(sk,i);
1402 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1403 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1408 #ifndef OPENSSL_NO_KRB5
1409 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1410 #endif /* OPENSSL_NO_KRB5 */
1412 if (sk == NULL) return(0);
1415 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1417 c=sk_SSL_CIPHER_value(sk,i);
1418 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
1419 if ((c->algorithm_ssl & SSL_TLSV1_2) &&
1420 (TLS1_get_client_version(s) < TLS1_2_VERSION))
1422 #ifndef OPENSSL_NO_KRB5
1423 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1426 #endif /* OPENSSL_NO_KRB5 */
1427 #ifndef OPENSSL_NO_PSK
1428 /* with PSK there must be client callback set */
1429 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1430 s->psk_client_callback == NULL)
1432 #endif /* OPENSSL_NO_PSK */
1433 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1436 /* If p == q, no ciphers and caller indicates an error. Otherwise
1437 * add SCSV if not renegotiating.
1439 if (p != q && !s->renegotiate)
1441 static SSL_CIPHER scsv =
1443 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1445 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1447 #ifdef OPENSSL_RI_DEBUG
1448 fprintf(stderr, "SCSV sent by client\n");
1455 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1456 STACK_OF(SSL_CIPHER) **skp)
1458 const SSL_CIPHER *c;
1459 STACK_OF(SSL_CIPHER) *sk;
1462 s->s3->send_connection_binding = 0;
1464 n=ssl_put_cipher_by_char(s,NULL,NULL);
1467 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1470 if ((skp == NULL) || (*skp == NULL))
1471 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1475 sk_SSL_CIPHER_zero(sk);
1478 for (i=0; i<num; i+=n)
1480 /* Check for SCSV */
1481 if (s->s3 && (n != 3 || !p[0]) &&
1482 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1483 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1485 /* SCSV fatal if renegotiating */
1488 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1489 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1492 s->s3->send_connection_binding = 1;
1494 #ifdef OPENSSL_RI_DEBUG
1495 fprintf(stderr, "SCSV received by server\n");
1500 c=ssl_get_cipher_by_char(s,p);
1504 if (!sk_SSL_CIPHER_push(sk,c))
1506 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1516 if ((skp == NULL) || (*skp == NULL))
1517 sk_SSL_CIPHER_free(sk);
1522 #ifndef OPENSSL_NO_TLSEXT
1523 /** return a servername extension value if provided in Client Hello, or NULL.
1524 * So far, only host_name types are defined (RFC 3546).
1527 const char *SSL_get_servername(const SSL *s, const int type)
1529 if (type != TLSEXT_NAMETYPE_host_name)
1532 return s->session && !s->tlsext_hostname ?
1533 s->session->tlsext_hostname :
1537 int SSL_get_servername_type(const SSL *s)
1539 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1540 return TLSEXT_NAMETYPE_host_name;
1544 # ifndef OPENSSL_NO_NEXTPROTONEG
1545 /* SSL_select_next_proto implements the standard protocol selection. It is
1546 * expected that this function is called from the callback set by
1547 * SSL_CTX_set_next_proto_select_cb.
1549 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1550 * strings. The length byte itself is not included in the length. A byte
1551 * string of length 0 is invalid. No byte string may be truncated.
1553 * The current, but experimental algorithm for selecting the protocol is:
1555 * 1) If the server doesn't support NPN then this is indicated to the
1556 * callback. In this case, the client application has to abort the connection
1557 * or have a default application level protocol.
1559 * 2) If the server supports NPN, but advertises an empty list then the
1560 * client selects the first protcol in its list, but indicates via the
1561 * API that this fallback case was enacted.
1563 * 3) Otherwise, the client finds the first protocol in the server's list
1564 * that it supports and selects this protocol. This is because it's
1565 * assumed that the server has better information about which protocol
1566 * a client should use.
1568 * 4) If the client doesn't support any of the server's advertised
1569 * protocols, then this is treated the same as case 2.
1572 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1573 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1575 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)
1578 const unsigned char *result;
1579 int status = OPENSSL_NPN_UNSUPPORTED;
1581 /* For each protocol in server preference order, see if we support it. */
1582 for (i = 0; i < server_len; )
1584 for (j = 0; j < client_len; )
1586 if (server[i] == client[j] &&
1587 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1589 /* We found a match */
1590 result = &server[i];
1591 status = OPENSSL_NPN_NEGOTIATED;
1601 /* There's no overlap between our protocols and the server's list. */
1603 status = OPENSSL_NPN_NO_OVERLAP;
1606 *out = (unsigned char *) result + 1;
1607 *outlen = result[0];
1611 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1612 * requested protocol for this connection and returns 0. If the client didn't
1613 * request any protocol, then *data is set to NULL.
1615 * Note that the client can request any protocol it chooses. The value returned
1616 * from this function need not be a member of the list of supported protocols
1617 * provided by the callback.
1619 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1621 *data = s->next_proto_negotiated;
1625 *len = s->next_proto_negotiated_len;
1629 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1630 * TLS server needs a list of supported protocols for Next Protocol
1631 * Negotiation. The returned list must be in wire format. The list is returned
1632 * by setting |out| to point to it and |outlen| to its length. This memory will
1633 * not be modified, but one should assume that the SSL* keeps a reference to
1636 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1637 * such extension will be included in the ServerHello. */
1638 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)
1640 ctx->next_protos_advertised_cb = cb;
1641 ctx->next_protos_advertised_cb_arg = arg;
1644 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1645 * client needs to select a protocol from the server's provided list. |out|
1646 * must be set to point to the selected protocol (which may be within |in|).
1647 * The length of the protocol name must be written into |outlen|. The server's
1648 * advertised protocols are provided in |in| and |inlen|. The callback can
1649 * assume that |in| is syntactically valid.
1651 * The client must select a protocol. It is fatal to the connection if this
1652 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1654 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)
1656 ctx->next_proto_select_cb = cb;
1657 ctx->next_proto_select_cb_arg = arg;
1663 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1664 const char *label, size_t llen, const unsigned char *p, size_t plen,
1667 if (s->version < TLS1_VERSION)
1670 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1675 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1680 ((unsigned int) a->session_id[0] )|
1681 ((unsigned int) a->session_id[1]<< 8L)|
1682 ((unsigned long)a->session_id[2]<<16L)|
1683 ((unsigned long)a->session_id[3]<<24L);
1687 /* NB: If this function (or indeed the hash function which uses a sort of
1688 * coarser function than this one) is changed, ensure
1689 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1690 * able to construct an SSL_SESSION that will collide with any existing session
1691 * with a matching session ID. */
1692 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1694 if (a->ssl_version != b->ssl_version)
1696 if (a->session_id_length != b->session_id_length)
1698 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1701 /* These wrapper functions should remain rather than redeclaring
1702 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1703 * variable. The reason is that the functions aren't static, they're exposed via
1705 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1706 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1708 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1714 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1719 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1721 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1726 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1728 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1731 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1735 memset(ret,0,sizeof(SSL_CTX));
1739 ret->cert_store=NULL;
1740 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1741 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1742 ret->session_cache_head=NULL;
1743 ret->session_cache_tail=NULL;
1745 /* We take the system default */
1746 ret->session_timeout=meth->get_timeout();
1748 ret->new_session_cb=0;
1749 ret->remove_session_cb=0;
1750 ret->get_session_cb=0;
1751 ret->generate_session_id=0;
1753 memset((char *)&ret->stats,0,sizeof(ret->stats));
1756 ret->quiet_shutdown=0;
1758 /* ret->cipher=NULL;*/
1759 /* ret->s2->challenge=NULL;
1760 ret->master_key=NULL;
1762 ret->s2->conn_id=NULL; */
1764 ret->info_callback=NULL;
1766 ret->app_verify_callback=0;
1767 ret->app_verify_arg=NULL;
1769 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1771 ret->msg_callback=0;
1772 ret->msg_callback_arg=NULL;
1773 ret->verify_mode=SSL_VERIFY_NONE;
1775 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1777 ret->sid_ctx_length=0;
1778 ret->default_verify_callback=NULL;
1779 if ((ret->cert=ssl_cert_new()) == NULL)
1782 ret->default_passwd_callback=0;
1783 ret->default_passwd_callback_userdata=NULL;
1784 ret->client_cert_cb=0;
1785 ret->app_gen_cookie_cb=0;
1786 ret->app_verify_cookie_cb=0;
1788 ret->sessions=lh_SSL_SESSION_new();
1789 if (ret->sessions == NULL) goto err;
1790 ret->cert_store=X509_STORE_new();
1791 if (ret->cert_store == NULL) goto err;
1793 ssl_create_cipher_list(ret->method,
1794 &ret->cipher_list,&ret->cipher_list_by_id,
1795 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
1796 if (ret->cipher_list == NULL
1797 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1799 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1803 ret->param = X509_VERIFY_PARAM_new();
1807 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1809 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1812 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1814 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1817 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1819 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1823 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1826 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1828 ret->extra_certs=NULL;
1829 ret->comp_methods=SSL_COMP_get_compression_methods();
1831 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1833 #ifndef OPENSSL_NO_TLSEXT
1834 ret->tlsext_servername_callback = 0;
1835 ret->tlsext_servername_arg = NULL;
1836 /* Setup RFC4507 ticket keys */
1837 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1838 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1839 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1840 ret->options |= SSL_OP_NO_TICKET;
1842 ret->tlsext_status_cb = 0;
1843 ret->tlsext_status_arg = NULL;
1845 # ifndef OPENSSL_NO_NEXTPROTONEG
1846 ret->next_protos_advertised_cb = 0;
1847 ret->next_proto_select_cb = 0;
1850 #ifndef OPENSSL_NO_PSK
1851 ret->psk_identity_hint=NULL;
1852 ret->psk_client_callback=NULL;
1853 ret->psk_server_callback=NULL;
1855 #ifndef OPENSSL_NO_SRP
1856 SSL_CTX_SRP_CTX_init(ret);
1858 #ifndef OPENSSL_NO_BUF_FREELISTS
1859 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1860 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1861 if (!ret->rbuf_freelist)
1863 ret->rbuf_freelist->chunklen = 0;
1864 ret->rbuf_freelist->len = 0;
1865 ret->rbuf_freelist->head = NULL;
1866 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1867 if (!ret->wbuf_freelist)
1869 OPENSSL_free(ret->rbuf_freelist);
1872 ret->wbuf_freelist->chunklen = 0;
1873 ret->wbuf_freelist->len = 0;
1874 ret->wbuf_freelist->head = NULL;
1876 #ifndef OPENSSL_NO_ENGINE
1877 ret->client_cert_engine = NULL;
1878 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1879 #define eng_strx(x) #x
1880 #define eng_str(x) eng_strx(x)
1881 /* Use specific client engine automatically... ignore errors */
1884 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1888 ENGINE_load_builtin_engines();
1889 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1891 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1896 /* Default is to connect to non-RI servers. When RI is more widely
1897 * deployed might change this.
1899 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1903 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1905 if (ret != NULL) SSL_CTX_free(ret);
1910 static void SSL_COMP_free(SSL_COMP *comp)
1911 { OPENSSL_free(comp); }
1914 #ifndef OPENSSL_NO_BUF_FREELISTS
1916 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1918 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1919 for (ent = list->head; ent; ent = next)
1928 void SSL_CTX_free(SSL_CTX *a)
1932 if (a == NULL) return;
1934 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1936 REF_PRINT("SSL_CTX",a);
1942 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1948 X509_VERIFY_PARAM_free(a->param);
1951 * Free internal session cache. However: the remove_cb() may reference
1952 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1953 * after the sessions were flushed.
1954 * As the ex_data handling routines might also touch the session cache,
1955 * the most secure solution seems to be: empty (flush) the cache, then
1956 * free ex_data, then finally free the cache.
1957 * (See ticket [openssl.org #212].)
1959 if (a->sessions != NULL)
1960 SSL_CTX_flush_sessions(a,0);
1962 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1964 if (a->sessions != NULL)
1965 lh_SSL_SESSION_free(a->sessions);
1967 if (a->cert_store != NULL)
1968 X509_STORE_free(a->cert_store);
1969 if (a->cipher_list != NULL)
1970 sk_SSL_CIPHER_free(a->cipher_list);
1971 if (a->cipher_list_by_id != NULL)
1972 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1973 if (a->cert != NULL)
1974 ssl_cert_free(a->cert);
1975 if (a->client_CA != NULL)
1976 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1977 if (a->extra_certs != NULL)
1978 sk_X509_pop_free(a->extra_certs,X509_free);
1979 #if 0 /* This should never be done, since it removes a global database */
1980 if (a->comp_methods != NULL)
1981 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1983 a->comp_methods = NULL;
1986 if (a->srtp_profiles)
1987 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1989 #ifndef OPENSSL_NO_PSK
1990 if (a->psk_identity_hint)
1991 OPENSSL_free(a->psk_identity_hint);
1993 #ifndef OPENSSL_NO_SRP
1994 SSL_CTX_SRP_CTX_free(a);
1996 #ifndef OPENSSL_NO_ENGINE
1997 if (a->client_cert_engine)
1998 ENGINE_finish(a->client_cert_engine);
2001 #ifndef OPENSSL_NO_BUF_FREELISTS
2002 if (a->wbuf_freelist)
2003 ssl_buf_freelist_free(a->wbuf_freelist);
2004 if (a->rbuf_freelist)
2005 ssl_buf_freelist_free(a->rbuf_freelist);
2007 #ifndef OPENSSL_NO_TLSEXT
2008 # ifndef OPENSSL_NO_EC
2009 if (a->tlsext_ecpointformatlist)
2010 OPENSSL_free(a->tlsext_ecpointformatlist);
2011 if (a->tlsext_ellipticcurvelist)
2012 OPENSSL_free(a->tlsext_ellipticcurvelist);
2013 # endif /* OPENSSL_NO_EC */
2019 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2021 ctx->default_passwd_callback=cb;
2024 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2026 ctx->default_passwd_callback_userdata=u;
2029 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2031 ctx->app_verify_callback=cb;
2032 ctx->app_verify_arg=arg;
2035 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2037 ctx->verify_mode=mode;
2038 ctx->default_verify_callback=cb;
2041 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2043 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2046 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2048 ssl_cert_set_cert_cb(c->cert, cb, arg);
2051 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2053 ssl_cert_set_cert_cb(s->cert, cb, arg);
2056 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2059 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2060 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2061 int rsa_tmp_export,dh_tmp_export,kl;
2062 unsigned long mask_k,mask_a,emask_k,emask_a;
2063 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
2064 #ifndef OPENSSL_NO_ECDH
2068 EVP_PKEY *ecc_pkey = NULL;
2069 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2071 if (c == NULL) return;
2073 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2075 #ifndef OPENSSL_NO_RSA
2076 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2077 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2078 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2080 rsa_tmp=rsa_tmp_export=0;
2082 #ifndef OPENSSL_NO_DH
2083 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2084 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2085 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2087 dh_tmp=dh_tmp_export=0;
2090 #ifndef OPENSSL_NO_ECDH
2091 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2093 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2094 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
2095 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2096 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2097 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2098 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2099 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2100 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2101 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2102 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2103 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2104 /* FIX THIS EAY EAY EAY */
2105 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2106 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2107 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2108 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
2117 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2118 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2119 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2122 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2123 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2124 mask_k |= SSL_kGOST;
2125 mask_a |= SSL_aGOST01;
2127 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2128 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2129 mask_k |= SSL_kGOST;
2130 mask_a |= SSL_aGOST94;
2133 if (rsa_enc || (rsa_tmp && rsa_sign))
2135 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2139 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2140 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2141 (rsa_enc || rsa_sign || dsa_sign))
2143 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2144 (rsa_enc || rsa_sign || dsa_sign))
2154 if (dh_rsa) mask_k|=SSL_kDHr;
2155 if (dh_rsa_export) emask_k|=SSL_kDHr;
2157 if (dh_dsa) mask_k|=SSL_kDHd;
2158 if (dh_dsa_export) emask_k|=SSL_kDHd;
2160 if (emask_k & (SSL_kDHr|SSL_kDHd))
2163 if (rsa_enc || rsa_sign)
2178 #ifndef OPENSSL_NO_KRB5
2185 /* An ECC certificate may be usable for ECDH and/or
2186 * ECDSA cipher suites depending on the key usage extension.
2190 /* This call populates extension flags (ex_flags) */
2191 x = (c->pkeys[SSL_PKEY_ECC]).x509;
2192 X509_check_purpose(x, -1, 0);
2193 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2194 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2195 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2196 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2197 ecc_pkey = X509_get_pubkey(x);
2198 ecc_pkey_size = (ecc_pkey != NULL) ?
2199 EVP_PKEY_bits(ecc_pkey) : 0;
2200 EVP_PKEY_free(ecc_pkey);
2201 if ((x->sig_alg) && (x->sig_alg->algorithm))
2203 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2204 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2206 #ifndef OPENSSL_NO_ECDH
2210 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2214 if (ecc_pkey_size <= 163)
2216 emask_k|=SSL_kECDHr;
2221 if (pk_nid == NID_X9_62_id_ecPublicKey)
2225 if (ecc_pkey_size <= 163)
2227 emask_k|=SSL_kECDHe;
2233 #ifndef OPENSSL_NO_ECDSA
2237 emask_a|=SSL_aECDSA;
2242 #ifndef OPENSSL_NO_ECDH
2246 emask_k|=SSL_kEECDH;
2250 #ifndef OPENSSL_NO_PSK
2253 emask_k |= SSL_kPSK;
2254 emask_a |= SSL_aPSK;
2259 c->export_mask_k=emask_k;
2260 c->export_mask_a=emask_a;
2264 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2265 #define ku_reject(x, usage) \
2266 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2268 #ifndef OPENSSL_NO_EC
2270 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2272 unsigned long alg_k, alg_a;
2273 EVP_PKEY *pkey = NULL;
2275 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2276 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2278 alg_k = cs->algorithm_mkey;
2279 alg_a = cs->algorithm_auth;
2281 if (SSL_C_IS_EXPORT(cs))
2283 /* ECDH key length in export ciphers must be <= 163 bits */
2284 pkey = X509_get_pubkey(x);
2285 if (pkey == NULL) return 0;
2286 keysize = EVP_PKEY_bits(pkey);
2287 EVP_PKEY_free(pkey);
2288 if (keysize > 163) return 0;
2291 /* This call populates the ex_flags field correctly */
2292 X509_check_purpose(x, -1, 0);
2293 if ((x->sig_alg) && (x->sig_alg->algorithm))
2295 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2296 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2298 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2300 /* key usage, if present, must allow key agreement */
2301 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2303 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2306 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2308 /* signature alg must be ECDSA */
2309 if (pk_nid != NID_X9_62_id_ecPublicKey)
2311 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2315 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2317 /* signature alg must be RSA */
2319 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2321 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2326 if (alg_a & SSL_aECDSA)
2328 /* key usage, if present, must allow signing */
2329 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2331 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2336 return 1; /* all checks are ok */
2341 /* THIS NEEDS CLEANING UP */
2342 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2344 unsigned long alg_k,alg_a;
2349 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2351 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2352 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2354 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2356 /* we don't need to look at SSL_kEECDH
2357 * since no certificate is needed for
2358 * anon ECDH and for authenticated
2359 * EECDH, the check for the auth
2360 * algorithm will set i correctly
2361 * NOTE: For ECDH-RSA, we need an ECC
2362 * not an RSA cert but for EECDH-RSA
2363 * we need an RSA cert. Placing the
2364 * checks for SSL_kECDH before RSA
2365 * checks ensures the correct cert is chosen.
2369 else if (alg_a & SSL_aECDSA)
2373 else if (alg_k & SSL_kDHr)
2375 else if (alg_k & SSL_kDHd)
2377 else if (alg_a & SSL_aDSS)
2378 i=SSL_PKEY_DSA_SIGN;
2379 else if (alg_a & SSL_aRSA)
2381 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2382 i=SSL_PKEY_RSA_SIGN;
2386 else if (alg_a & SSL_aKRB5)
2388 /* VRS something else here? */
2391 else if (alg_a & SSL_aGOST94)
2393 else if (alg_a & SSL_aGOST01)
2395 else /* if (alg_a & SSL_aNULL) */
2397 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY,ERR_R_INTERNAL_ERROR);
2400 if (c->pkeys[i].x509 == NULL) return(NULL);
2402 return(&c->pkeys[i]);
2405 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2407 unsigned long alg_a;
2411 alg_a = cipher->algorithm_auth;
2414 if ((alg_a & SSL_aDSS) &&
2415 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2416 idx = SSL_PKEY_DSA_SIGN;
2417 else if (alg_a & SSL_aRSA)
2419 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2420 idx = SSL_PKEY_RSA_SIGN;
2421 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2422 idx = SSL_PKEY_RSA_ENC;
2424 else if ((alg_a & SSL_aECDSA) &&
2425 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2429 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2433 *pmd = c->pkeys[idx].digest;
2434 return c->pkeys[idx].privatekey;
2437 void ssl_update_cache(SSL *s,int mode)
2441 /* If the session_id_length is 0, we are not supposed to cache it,
2442 * and it would be rather hard to do anyway :-) */
2443 if (s->session->session_id_length == 0) return;
2445 i=s->session_ctx->session_cache_mode;
2446 if ((i & mode) && (!s->hit)
2447 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2448 || SSL_CTX_add_session(s->session_ctx,s->session))
2449 && (s->session_ctx->new_session_cb != NULL))
2451 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2452 if (!s->session_ctx->new_session_cb(s,s->session))
2453 SSL_SESSION_free(s->session);
2456 /* auto flush every 255 connections */
2457 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2458 ((i & mode) == mode))
2460 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2461 ?s->session_ctx->stats.sess_connect_good
2462 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2464 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2469 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2474 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2479 if (s->method != meth)
2481 if (s->handshake_func != NULL)
2482 conn=(s->handshake_func == s->method->ssl_connect);
2484 if (s->method->version == meth->version)
2488 s->method->ssl_free(s);
2490 ret=s->method->ssl_new(s);
2494 s->handshake_func=meth->ssl_connect;
2496 s->handshake_func=meth->ssl_accept;
2501 int SSL_get_error(const SSL *s,int i)
2507 if (i > 0) return(SSL_ERROR_NONE);
2509 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2510 * etc, where we do encode the error */
2511 if ((l=ERR_peek_error()) != 0)
2513 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2514 return(SSL_ERROR_SYSCALL);
2516 return(SSL_ERROR_SSL);
2519 if ((i < 0) && SSL_want_read(s))
2521 bio=SSL_get_rbio(s);
2522 if (BIO_should_read(bio))
2523 return(SSL_ERROR_WANT_READ);
2524 else if (BIO_should_write(bio))
2525 /* This one doesn't make too much sense ... We never try
2526 * to write to the rbio, and an application program where
2527 * rbio and wbio are separate couldn't even know what it
2529 * However if we ever set s->rwstate incorrectly
2530 * (so that we have SSL_want_read(s) instead of
2531 * SSL_want_write(s)) and rbio and wbio *are* the same,
2532 * this test works around that bug; so it might be safer
2534 return(SSL_ERROR_WANT_WRITE);
2535 else if (BIO_should_io_special(bio))
2537 reason=BIO_get_retry_reason(bio);
2538 if (reason == BIO_RR_CONNECT)
2539 return(SSL_ERROR_WANT_CONNECT);
2540 else if (reason == BIO_RR_ACCEPT)
2541 return(SSL_ERROR_WANT_ACCEPT);
2543 return(SSL_ERROR_SYSCALL); /* unknown */
2547 if ((i < 0) && SSL_want_write(s))
2549 bio=SSL_get_wbio(s);
2550 if (BIO_should_write(bio))
2551 return(SSL_ERROR_WANT_WRITE);
2552 else if (BIO_should_read(bio))
2553 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2554 return(SSL_ERROR_WANT_READ);
2555 else if (BIO_should_io_special(bio))
2557 reason=BIO_get_retry_reason(bio);
2558 if (reason == BIO_RR_CONNECT)
2559 return(SSL_ERROR_WANT_CONNECT);
2560 else if (reason == BIO_RR_ACCEPT)
2561 return(SSL_ERROR_WANT_ACCEPT);
2563 return(SSL_ERROR_SYSCALL);
2566 if ((i < 0) && SSL_want_x509_lookup(s))
2568 return(SSL_ERROR_WANT_X509_LOOKUP);
2573 if (s->version == SSL2_VERSION)
2575 /* assume it is the socket being closed */
2576 return(SSL_ERROR_ZERO_RETURN);
2580 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2581 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2582 return(SSL_ERROR_ZERO_RETURN);
2585 return(SSL_ERROR_SYSCALL);
2588 int SSL_do_handshake(SSL *s)
2592 if (s->handshake_func == NULL)
2594 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2598 s->method->ssl_renegotiate_check(s);
2600 if (SSL_in_init(s) || SSL_in_before(s))
2602 ret=s->handshake_func(s);
2607 /* For the next 2 functions, SSL_clear() sets shutdown and so
2608 * one of these calls will reset it */
2609 void SSL_set_accept_state(SSL *s)
2613 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2614 s->handshake_func=s->method->ssl_accept;
2615 /* clear the current cipher */
2616 ssl_clear_cipher_ctx(s);
2617 ssl_clear_hash_ctx(&s->read_hash);
2618 ssl_clear_hash_ctx(&s->write_hash);
2621 void SSL_set_connect_state(SSL *s)
2625 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2626 s->handshake_func=s->method->ssl_connect;
2627 /* clear the current cipher */
2628 ssl_clear_cipher_ctx(s);
2629 ssl_clear_hash_ctx(&s->read_hash);
2630 ssl_clear_hash_ctx(&s->write_hash);
2633 int ssl_undefined_function(SSL *s)
2635 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2639 int ssl_undefined_void_function(void)
2641 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2645 int ssl_undefined_const_function(const SSL *s)
2647 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2651 SSL_METHOD *ssl_bad_method(int ver)
2653 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2657 const char *SSL_get_version(const SSL *s)
2659 if (s->version == TLS1_2_VERSION)
2661 else if (s->version == TLS1_1_VERSION)
2663 else if (s->version == TLS1_VERSION)
2665 else if (s->version == SSL3_VERSION)
2667 else if (s->version == SSL2_VERSION)
2673 SSL *SSL_dup(SSL *s)
2675 STACK_OF(X509_NAME) *sk;
2680 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2683 ret->version = s->version;
2684 ret->type = s->type;
2685 ret->method = s->method;
2687 if (s->session != NULL)
2689 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2690 SSL_copy_session_id(ret,s);
2694 /* No session has been established yet, so we have to expect
2695 * that s->cert or ret->cert will be changed later --
2696 * they should not both point to the same object,
2697 * and thus we can't use SSL_copy_session_id. */
2699 ret->method->ssl_free(ret);
2700 ret->method = s->method;
2701 ret->method->ssl_new(ret);
2703 if (s->cert != NULL)
2705 if (ret->cert != NULL)
2707 ssl_cert_free(ret->cert);
2709 ret->cert = ssl_cert_dup(s->cert);
2710 if (ret->cert == NULL)
2714 SSL_set_session_id_context(ret,
2715 s->sid_ctx, s->sid_ctx_length);
2718 ret->options=s->options;
2720 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2721 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2722 ret->msg_callback = s->msg_callback;
2723 ret->msg_callback_arg = s->msg_callback_arg;
2724 SSL_set_verify(ret,SSL_get_verify_mode(s),
2725 SSL_get_verify_callback(s));
2726 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2727 ret->generate_session_id = s->generate_session_id;
2729 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2731 ret->debug=s->debug;
2733 /* copy app data, a little dangerous perhaps */
2734 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2737 /* setup rbio, and wbio */
2738 if (s->rbio != NULL)
2740 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2743 if (s->wbio != NULL)
2745 if (s->wbio != s->rbio)
2747 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2751 ret->wbio=ret->rbio;
2753 ret->rwstate = s->rwstate;
2754 ret->in_handshake = s->in_handshake;
2755 ret->handshake_func = s->handshake_func;
2756 ret->server = s->server;
2757 ret->renegotiate = s->renegotiate;
2758 ret->new_session = s->new_session;
2759 ret->quiet_shutdown = s->quiet_shutdown;
2760 ret->shutdown=s->shutdown;
2761 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2762 ret->rstate=s->rstate;
2763 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2766 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2768 /* dup the cipher_list and cipher_list_by_id stacks */
2769 if (s->cipher_list != NULL)
2771 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2774 if (s->cipher_list_by_id != NULL)
2775 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2779 /* Dup the client_CA list */
2780 if (s->client_CA != NULL)
2782 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2784 for (i=0; i<sk_X509_NAME_num(sk); i++)
2786 xn=sk_X509_NAME_value(sk,i);
2787 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2798 if (ret != NULL) SSL_free(ret);
2804 void ssl_clear_cipher_ctx(SSL *s)
2806 if (s->enc_read_ctx != NULL)
2808 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2809 OPENSSL_free(s->enc_read_ctx);
2810 s->enc_read_ctx=NULL;
2812 if (s->enc_write_ctx != NULL)
2814 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2815 OPENSSL_free(s->enc_write_ctx);
2816 s->enc_write_ctx=NULL;
2818 #ifndef OPENSSL_NO_COMP
2819 if (s->expand != NULL)
2821 COMP_CTX_free(s->expand);
2824 if (s->compress != NULL)
2826 COMP_CTX_free(s->compress);
2832 /* Fix this function so that it takes an optional type parameter */
2833 X509 *SSL_get_certificate(const SSL *s)
2835 if (s->cert != NULL)
2836 return(s->cert->key->x509);
2841 /* Fix this function so that it takes an optional type parameter */
2842 EVP_PKEY *SSL_get_privatekey(SSL *s)
2844 if (s->cert != NULL)
2845 return(s->cert->key->privatekey);
2850 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2852 if ((s->session != NULL) && (s->session->cipher != NULL))
2853 return(s->session->cipher);
2856 #ifdef OPENSSL_NO_COMP
2857 const void *SSL_get_current_compression(SSL *s)
2861 const void *SSL_get_current_expansion(SSL *s)
2867 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2869 if (s->compress != NULL)
2870 return(s->compress->meth);
2874 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2876 if (s->expand != NULL)
2877 return(s->expand->meth);
2882 int ssl_init_wbio_buffer(SSL *s,int push)
2886 if (s->bbio == NULL)
2888 bbio=BIO_new(BIO_f_buffer());
2889 if (bbio == NULL) return(0);
2895 if (s->bbio == s->wbio)
2896 s->wbio=BIO_pop(s->wbio);
2898 (void)BIO_reset(bbio);
2899 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2900 if (!BIO_set_read_buffer_size(bbio,1))
2902 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2907 if (s->wbio != bbio)
2908 s->wbio=BIO_push(bbio,s->wbio);
2912 if (s->wbio == bbio)
2913 s->wbio=BIO_pop(bbio);
2918 void ssl_free_wbio_buffer(SSL *s)
2920 if (s->bbio == NULL) return;
2922 if (s->bbio == s->wbio)
2924 /* remove buffering */
2925 s->wbio=BIO_pop(s->wbio);
2926 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2927 assert(s->wbio != NULL);
2934 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2936 ctx->quiet_shutdown=mode;
2939 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2941 return(ctx->quiet_shutdown);
2944 void SSL_set_quiet_shutdown(SSL *s,int mode)
2946 s->quiet_shutdown=mode;
2949 int SSL_get_quiet_shutdown(const SSL *s)
2951 return(s->quiet_shutdown);
2954 void SSL_set_shutdown(SSL *s,int mode)
2959 int SSL_get_shutdown(const SSL *s)
2961 return(s->shutdown);
2964 int SSL_version(const SSL *s)
2969 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2974 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2976 if (ssl->ctx == ctx)
2978 #ifndef OPENSSL_NO_TLSEXT
2980 ctx = ssl->initial_ctx;
2982 if (ssl->cert != NULL)
2983 ssl_cert_free(ssl->cert);
2984 ssl->cert = ssl_cert_dup(ctx->cert);
2985 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2986 if (ssl->ctx != NULL)
2987 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2992 #ifndef OPENSSL_NO_STDIO
2993 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2995 return(X509_STORE_set_default_paths(ctx->cert_store));
2998 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3001 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3005 void SSL_set_info_callback(SSL *ssl,
3006 void (*cb)(const SSL *ssl,int type,int val))
3008 ssl->info_callback=cb;
3011 /* One compiler (Diab DCC) doesn't like argument names in returned
3012 function pointer. */
3013 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3015 return ssl->info_callback;
3018 int SSL_state(const SSL *ssl)
3023 void SSL_set_state(SSL *ssl, int state)
3028 void SSL_set_verify_result(SSL *ssl,long arg)
3030 ssl->verify_result=arg;
3033 long SSL_get_verify_result(const SSL *ssl)
3035 return(ssl->verify_result);
3038 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3039 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3041 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3042 new_func, dup_func, free_func);
3045 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3047 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3050 void *SSL_get_ex_data(const SSL *s,int idx)
3052 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3055 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3056 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3058 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3059 new_func, dup_func, free_func);
3062 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3064 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3067 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3069 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3077 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3079 return(ctx->cert_store);
3082 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3084 if (ctx->cert_store != NULL)
3085 X509_STORE_free(ctx->cert_store);
3086 ctx->cert_store=store;
3089 int SSL_want(const SSL *s)
3095 * \brief Set the callback for generating temporary RSA keys.
3096 * \param ctx the SSL context.
3097 * \param cb the callback
3100 #ifndef OPENSSL_NO_RSA
3101 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3105 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3108 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3112 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3118 * \brief The RSA temporary key callback function.
3119 * \param ssl the SSL session.
3120 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3121 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3122 * of the required key in bits.
3123 * \return the temporary RSA key.
3124 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3127 RSA *cb(SSL *ssl,int is_export,int keylength)
3132 * \brief Set the callback for generating temporary DH keys.
3133 * \param ctx the SSL context.
3134 * \param dh the callback
3137 #ifndef OPENSSL_NO_DH
3138 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3141 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3144 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3147 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3151 #ifndef OPENSSL_NO_ECDH
3152 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3155 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3158 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3161 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3165 #ifndef OPENSSL_NO_PSK
3166 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3168 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3170 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3173 if (ctx->psk_identity_hint != NULL)
3174 OPENSSL_free(ctx->psk_identity_hint);
3175 if (identity_hint != NULL)
3177 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3178 if (ctx->psk_identity_hint == NULL)
3182 ctx->psk_identity_hint = NULL;
3186 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3191 if (s->session == NULL)
3192 return 1; /* session not created yet, ignored */
3194 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3196 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3199 if (s->session->psk_identity_hint != NULL)
3200 OPENSSL_free(s->session->psk_identity_hint);
3201 if (identity_hint != NULL)
3203 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3204 if (s->session->psk_identity_hint == NULL)
3208 s->session->psk_identity_hint = NULL;
3212 const char *SSL_get_psk_identity_hint(const SSL *s)
3214 if (s == NULL || s->session == NULL)
3216 return(s->session->psk_identity_hint);
3219 const char *SSL_get_psk_identity(const SSL *s)
3221 if (s == NULL || s->session == NULL)
3223 return(s->session->psk_identity);
3226 void SSL_set_psk_client_callback(SSL *s,
3227 unsigned int (*cb)(SSL *ssl, const char *hint,
3228 char *identity, unsigned int max_identity_len, unsigned char *psk,
3229 unsigned int max_psk_len))
3231 s->psk_client_callback = cb;
3234 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3235 unsigned int (*cb)(SSL *ssl, const char *hint,
3236 char *identity, unsigned int max_identity_len, unsigned char *psk,
3237 unsigned int max_psk_len))
3239 ctx->psk_client_callback = cb;
3242 void SSL_set_psk_server_callback(SSL *s,
3243 unsigned int (*cb)(SSL *ssl, const char *identity,
3244 unsigned char *psk, unsigned int max_psk_len))
3246 s->psk_server_callback = cb;
3249 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3250 unsigned int (*cb)(SSL *ssl, const char *identity,
3251 unsigned char *psk, unsigned int max_psk_len))
3253 ctx->psk_server_callback = cb;
3257 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))
3259 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3261 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))
3263 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3266 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3267 int (*cb)(SSL *ssl, int is_forward_secure))
3269 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3270 (void (*)(void))cb);
3272 void SSL_set_not_resumable_session_callback(SSL *ssl,
3273 int (*cb)(SSL *ssl, int is_forward_secure))
3275 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3276 (void (*)(void))cb);
3279 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3280 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3281 * any. If EVP_MD pointer is passed, initializes ctx with this md
3282 * Returns newly allocated ctx;
3285 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3287 ssl_clear_hash_ctx(hash);
3288 *hash = EVP_MD_CTX_create();
3289 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3292 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3295 if (*hash) EVP_MD_CTX_destroy(*hash);
3299 void SSL_set_debug(SSL *s, int debug)
3304 int SSL_cache_hit(SSL *s)
3309 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3310 #include "../crypto/bio/bss_file.c"
3313 IMPLEMENT_STACK_OF(SSL_CIPHER)
3314 IMPLEMENT_STACK_OF(SSL_COMP)
3315 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,