00c1c6cb28
with the SSL_OP_NO_SSLv2 option.
1159 lines
32 KiB
C
1159 lines
32 KiB
C
/* ssl/s2_srvr.c */
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|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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|
* notice, this list of conditions and the following disclaimer in
|
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include "ssl_locl.h"
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#ifndef OPENSSL_NO_SSL2
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#include <stdio.h>
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#include <openssl/bio.h>
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#include <openssl/rand.h>
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#include <openssl/objects.h>
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#include <openssl/evp.h>
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static SSL_METHOD *ssl2_get_server_method(int ver);
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static int get_client_master_key(SSL *s);
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static int get_client_hello(SSL *s);
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static int server_hello(SSL *s);
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static int get_client_finished(SSL *s);
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static int server_verify(SSL *s);
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static int server_finish(SSL *s);
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static int request_certificate(SSL *s);
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static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from,
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unsigned char *to,int padding);
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#define BREAK break
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static SSL_METHOD *ssl2_get_server_method(int ver)
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{
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if (ver == SSL2_VERSION)
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return(SSLv2_server_method());
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else
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return(NULL);
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}
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SSL_METHOD *SSLv2_server_method(void)
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{
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static int init=1;
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static SSL_METHOD SSLv2_server_data;
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if (init)
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{
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CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
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if (init)
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{
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memcpy((char *)&SSLv2_server_data,(char *)sslv2_base_method(),
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sizeof(SSL_METHOD));
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SSLv2_server_data.ssl_accept=ssl2_accept;
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SSLv2_server_data.get_ssl_method=ssl2_get_server_method;
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init=0;
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}
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CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
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}
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return(&SSLv2_server_data);
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}
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int ssl2_accept(SSL *s)
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{
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unsigned long l=time(NULL);
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BUF_MEM *buf=NULL;
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int ret= -1;
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long num1;
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void (*cb)(const SSL *ssl,int type,int val)=NULL;
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int new_state,state;
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RAND_add(&l,sizeof(l),0);
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ERR_clear_error();
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clear_sys_error();
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if (s->info_callback != NULL)
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cb=s->info_callback;
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else if (s->ctx->info_callback != NULL)
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cb=s->ctx->info_callback;
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/* init things to blank */
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s->in_handshake++;
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if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
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if (s->cert == NULL)
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{
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SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
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return(-1);
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}
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clear_sys_error();
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for (;;)
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{
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state=s->state;
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switch (s->state)
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{
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case SSL_ST_BEFORE:
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case SSL_ST_ACCEPT:
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case SSL_ST_BEFORE|SSL_ST_ACCEPT:
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case SSL_ST_OK|SSL_ST_ACCEPT:
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s->server=1;
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if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
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s->version=SSL2_VERSION;
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s->type=SSL_ST_ACCEPT;
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buf=s->init_buf;
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if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL))
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{ ret= -1; goto end; }
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if (!BUF_MEM_grow(buf,(int)
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SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
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{ ret= -1; goto end; }
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s->init_buf=buf;
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s->init_num=0;
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s->ctx->stats.sess_accept++;
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s->handshake_func=ssl2_accept;
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s->state=SSL2_ST_GET_CLIENT_HELLO_A;
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BREAK;
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case SSL2_ST_GET_CLIENT_HELLO_A:
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case SSL2_ST_GET_CLIENT_HELLO_B:
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case SSL2_ST_GET_CLIENT_HELLO_C:
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s->shutdown=0;
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ret=get_client_hello(s);
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if (ret <= 0) goto end;
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s->init_num=0;
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s->state=SSL2_ST_SEND_SERVER_HELLO_A;
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BREAK;
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case SSL2_ST_SEND_SERVER_HELLO_A:
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case SSL2_ST_SEND_SERVER_HELLO_B:
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ret=server_hello(s);
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if (ret <= 0) goto end;
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s->init_num=0;
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if (!s->hit)
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{
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s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_A;
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BREAK;
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}
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else
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{
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s->state=SSL2_ST_SERVER_START_ENCRYPTION;
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BREAK;
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}
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case SSL2_ST_GET_CLIENT_MASTER_KEY_A:
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case SSL2_ST_GET_CLIENT_MASTER_KEY_B:
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ret=get_client_master_key(s);
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if (ret <= 0) goto end;
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s->init_num=0;
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s->state=SSL2_ST_SERVER_START_ENCRYPTION;
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BREAK;
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case SSL2_ST_SERVER_START_ENCRYPTION:
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/* Ok we how have sent all the stuff needed to
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* start encrypting, the next packet back will
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* be encrypted. */
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if (!ssl2_enc_init(s,0))
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{ ret= -1; goto end; }
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s->s2->clear_text=0;
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s->state=SSL2_ST_SEND_SERVER_VERIFY_A;
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BREAK;
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case SSL2_ST_SEND_SERVER_VERIFY_A:
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case SSL2_ST_SEND_SERVER_VERIFY_B:
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ret=server_verify(s);
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if (ret <= 0) goto end;
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s->init_num=0;
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if (s->hit)
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{
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/* If we are in here, we have been
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* buffering the output, so we need to
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* flush it and remove buffering from
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* future traffic */
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s->state=SSL2_ST_SEND_SERVER_VERIFY_C;
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BREAK;
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}
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else
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{
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s->state=SSL2_ST_GET_CLIENT_FINISHED_A;
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break;
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}
|
|
|
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case SSL2_ST_SEND_SERVER_VERIFY_C:
|
|
/* get the number of bytes to write */
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num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
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if (num1 != 0)
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{
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s->rwstate=SSL_WRITING;
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num1=BIO_flush(s->wbio);
|
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if (num1 <= 0) { ret= -1; goto end; }
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s->rwstate=SSL_NOTHING;
|
|
}
|
|
|
|
/* flushed and now remove buffering */
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|
s->wbio=BIO_pop(s->wbio);
|
|
|
|
s->state=SSL2_ST_GET_CLIENT_FINISHED_A;
|
|
BREAK;
|
|
|
|
case SSL2_ST_GET_CLIENT_FINISHED_A:
|
|
case SSL2_ST_GET_CLIENT_FINISHED_B:
|
|
ret=get_client_finished(s);
|
|
if (ret <= 0)
|
|
goto end;
|
|
s->init_num=0;
|
|
s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_A;
|
|
BREAK;
|
|
|
|
case SSL2_ST_SEND_REQUEST_CERTIFICATE_A:
|
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case SSL2_ST_SEND_REQUEST_CERTIFICATE_B:
|
|
case SSL2_ST_SEND_REQUEST_CERTIFICATE_C:
|
|
case SSL2_ST_SEND_REQUEST_CERTIFICATE_D:
|
|
/* don't do a 'request certificate' if we
|
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* don't want to, or we already have one, and
|
|
* we only want to do it once. */
|
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if (!(s->verify_mode & SSL_VERIFY_PEER) ||
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((s->session->peer != NULL) &&
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(s->verify_mode & SSL_VERIFY_CLIENT_ONCE)))
|
|
{
|
|
s->state=SSL2_ST_SEND_SERVER_FINISHED_A;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
ret=request_certificate(s);
|
|
if (ret <= 0) goto end;
|
|
s->init_num=0;
|
|
s->state=SSL2_ST_SEND_SERVER_FINISHED_A;
|
|
}
|
|
BREAK;
|
|
|
|
case SSL2_ST_SEND_SERVER_FINISHED_A:
|
|
case SSL2_ST_SEND_SERVER_FINISHED_B:
|
|
ret=server_finish(s);
|
|
if (ret <= 0) goto end;
|
|
s->init_num=0;
|
|
s->state=SSL_ST_OK;
|
|
break;
|
|
|
|
case SSL_ST_OK:
|
|
BUF_MEM_free(s->init_buf);
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|
ssl_free_wbio_buffer(s);
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|
s->init_buf=NULL;
|
|
s->init_num=0;
|
|
/* ERR_clear_error();*/
|
|
|
|
ssl_update_cache(s,SSL_SESS_CACHE_SERVER);
|
|
|
|
s->ctx->stats.sess_accept_good++;
|
|
/* s->server=1; */
|
|
ret=1;
|
|
|
|
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
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|
|
|
goto end;
|
|
/* BREAK; */
|
|
|
|
default:
|
|
SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_UNKNOWN_STATE);
|
|
ret= -1;
|
|
goto end;
|
|
/* BREAK; */
|
|
}
|
|
|
|
if ((cb != NULL) && (s->state != state))
|
|
{
|
|
new_state=s->state;
|
|
s->state=state;
|
|
cb(s,SSL_CB_ACCEPT_LOOP,1);
|
|
s->state=new_state;
|
|
}
|
|
}
|
|
end:
|
|
s->in_handshake--;
|
|
if (cb != NULL)
|
|
cb(s,SSL_CB_ACCEPT_EXIT,ret);
|
|
return(ret);
|
|
}
|
|
|
|
static int get_client_master_key(SSL *s)
|
|
{
|
|
int is_export,i,n,keya,ek;
|
|
unsigned long len;
|
|
unsigned char *p;
|
|
SSL_CIPHER *cp;
|
|
const EVP_CIPHER *c;
|
|
const EVP_MD *md;
|
|
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (s->state == SSL2_ST_GET_CLIENT_MASTER_KEY_A)
|
|
{
|
|
i=ssl2_read(s,(char *)&(p[s->init_num]),10-s->init_num);
|
|
|
|
if (i < (10-s->init_num))
|
|
return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i));
|
|
s->init_num = 10;
|
|
|
|
if (*(p++) != SSL2_MT_CLIENT_MASTER_KEY)
|
|
{
|
|
if (p[-1] != SSL2_MT_ERROR)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_READ_WRONG_PACKET_TYPE);
|
|
}
|
|
else
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_PEER_ERROR);
|
|
return(-1);
|
|
}
|
|
|
|
cp=ssl2_get_cipher_by_char(p);
|
|
if (cp == NULL)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_NO_CIPHER);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_CIPHER_MATCH);
|
|
return(-1);
|
|
}
|
|
s->session->cipher= cp;
|
|
|
|
p+=3;
|
|
n2s(p,i); s->s2->tmp.clear=i;
|
|
n2s(p,i); s->s2->tmp.enc=i;
|
|
n2s(p,i); s->session->key_arg_length=i;
|
|
if(s->session->key_arg_length > SSL_MAX_KEY_ARG_LENGTH)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_KEY_ARG_TOO_LONG);
|
|
return -1;
|
|
}
|
|
s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_B;
|
|
}
|
|
|
|
/* SSL2_ST_GET_CLIENT_MASTER_KEY_B */
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (s->init_buf->length < SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
keya=s->session->key_arg_length;
|
|
len = 10 + (unsigned long)s->s2->tmp.clear + (unsigned long)s->s2->tmp.enc + (unsigned long)keya;
|
|
if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_MESSAGE_TOO_LONG);
|
|
return -1;
|
|
}
|
|
n = (int)len - s->init_num;
|
|
i = ssl2_read(s,(char *)&(p[s->init_num]),n);
|
|
if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i));
|
|
if (s->msg_callback)
|
|
s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-MASTER-KEY */
|
|
p += 10;
|
|
|
|
memcpy(s->session->key_arg,&(p[s->s2->tmp.clear+s->s2->tmp.enc]),
|
|
(unsigned int)keya);
|
|
|
|
if (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_NO_PRIVATEKEY);
|
|
return(-1);
|
|
}
|
|
i=ssl_rsa_private_decrypt(s->cert,s->s2->tmp.enc,
|
|
&(p[s->s2->tmp.clear]),&(p[s->s2->tmp.clear]),
|
|
(s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING);
|
|
|
|
is_export=SSL_C_IS_EXPORT(s->session->cipher);
|
|
|
|
if (!ssl_cipher_get_evp(s->session,&c,&md,NULL))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_NO_CIPHER);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS);
|
|
return(0);
|
|
}
|
|
|
|
if (s->session->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC)
|
|
{
|
|
is_export=1;
|
|
ek=8;
|
|
}
|
|
else
|
|
ek=5;
|
|
|
|
/* bad decrypt */
|
|
#if 1
|
|
/* If a bad decrypt, continue with protocol but with a
|
|
* random master secret (Bleichenbacher attack) */
|
|
if ((i < 0) ||
|
|
((!is_export && (i != EVP_CIPHER_key_length(c)))
|
|
|| (is_export && ((i != ek) || (s->s2->tmp.clear+(unsigned int)i !=
|
|
(unsigned int)EVP_CIPHER_key_length(c))))))
|
|
{
|
|
ERR_clear_error();
|
|
if (is_export)
|
|
i=ek;
|
|
else
|
|
i=EVP_CIPHER_key_length(c);
|
|
if(RAND_pseudo_bytes(p,i) <= 0)
|
|
return 0;
|
|
}
|
|
#else
|
|
if (i < 0)
|
|
{
|
|
error=1;
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_BAD_RSA_DECRYPT);
|
|
}
|
|
/* incorrect number of key bytes for non export cipher */
|
|
else if ((!is_export && (i != EVP_CIPHER_key_length(c)))
|
|
|| (is_export && ((i != ek) || (s->s2->tmp.clear+i !=
|
|
EVP_CIPHER_key_length(c)))))
|
|
{
|
|
error=1;
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_WRONG_NUMBER_OF_KEY_BITS);
|
|
}
|
|
if (error)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
return(-1);
|
|
}
|
|
#endif
|
|
|
|
if (is_export) i+=s->s2->tmp.clear;
|
|
|
|
if (i > SSL_MAX_MASTER_KEY_LENGTH)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
s->session->master_key_length=i;
|
|
memcpy(s->session->master_key,p,(unsigned int)i);
|
|
return(1);
|
|
}
|
|
|
|
static int get_client_hello(SSL *s)
|
|
{
|
|
int i,n;
|
|
unsigned long len;
|
|
unsigned char *p;
|
|
STACK_OF(SSL_CIPHER) *cs; /* a stack of SSL_CIPHERS */
|
|
STACK_OF(SSL_CIPHER) *cl; /* the ones we want to use */
|
|
STACK_OF(SSL_CIPHER) *prio, *allow;
|
|
int z;
|
|
|
|
/* This is a bit of a hack to check for the correct packet
|
|
* type the first time round. */
|
|
if (s->state == SSL2_ST_GET_CLIENT_HELLO_A)
|
|
{
|
|
s->first_packet=1;
|
|
s->state=SSL2_ST_GET_CLIENT_HELLO_B;
|
|
}
|
|
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (s->state == SSL2_ST_GET_CLIENT_HELLO_B)
|
|
{
|
|
i=ssl2_read(s,(char *)&(p[s->init_num]),9-s->init_num);
|
|
if (i < (9-s->init_num))
|
|
return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i));
|
|
s->init_num = 9;
|
|
|
|
if (*(p++) != SSL2_MT_CLIENT_HELLO)
|
|
{
|
|
if (p[-1] != SSL2_MT_ERROR)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_READ_WRONG_PACKET_TYPE);
|
|
}
|
|
else
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_PEER_ERROR);
|
|
return(-1);
|
|
}
|
|
n2s(p,i);
|
|
if (i < s->version) s->version=i;
|
|
n2s(p,i); s->s2->tmp.cipher_spec_length=i;
|
|
n2s(p,i); s->s2->tmp.session_id_length=i;
|
|
n2s(p,i); s->s2->challenge_length=i;
|
|
if ( (i < SSL2_MIN_CHALLENGE_LENGTH) ||
|
|
(i > SSL2_MAX_CHALLENGE_LENGTH))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_INVALID_CHALLENGE_LENGTH);
|
|
return(-1);
|
|
}
|
|
s->state=SSL2_ST_GET_CLIENT_HELLO_C;
|
|
}
|
|
|
|
/* SSL2_ST_GET_CLIENT_HELLO_C */
|
|
p=(unsigned char *)s->init_buf->data;
|
|
len = 9 + (unsigned long)s->s2->tmp.cipher_spec_length + (unsigned long)s->s2->challenge_length + (unsigned long)s->s2->tmp.session_id_length;
|
|
if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_MESSAGE_TOO_LONG);
|
|
return -1;
|
|
}
|
|
n = (int)len - s->init_num;
|
|
i = ssl2_read(s,(char *)&(p[s->init_num]),n);
|
|
if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i));
|
|
if (s->msg_callback)
|
|
s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-HELLO */
|
|
p += 9;
|
|
|
|
/* get session-id before cipher stuff so we can get out session
|
|
* structure if it is cached */
|
|
/* session-id */
|
|
if ((s->s2->tmp.session_id_length != 0) &&
|
|
(s->s2->tmp.session_id_length != SSL2_SSL_SESSION_ID_LENGTH))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_BAD_SSL_SESSION_ID_LENGTH);
|
|
return(-1);
|
|
}
|
|
|
|
if (s->s2->tmp.session_id_length == 0)
|
|
{
|
|
if (!ssl_get_new_session(s,1))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
return(-1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
i=ssl_get_prev_session(s,&(p[s->s2->tmp.cipher_spec_length]),
|
|
s->s2->tmp.session_id_length);
|
|
if (i == 1)
|
|
{ /* previous session */
|
|
s->hit=1;
|
|
}
|
|
else if (i == -1)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
return(-1);
|
|
}
|
|
else
|
|
{
|
|
if (s->cert == NULL)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_NO_CERTIFICATE_SET);
|
|
return(-1);
|
|
}
|
|
|
|
if (!ssl_get_new_session(s,1))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
return(-1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!s->hit)
|
|
{
|
|
cs=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.cipher_spec_length,
|
|
&s->session->ciphers);
|
|
if (cs == NULL) goto mem_err;
|
|
|
|
cl=SSL_get_ciphers(s);
|
|
|
|
if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE)
|
|
{
|
|
prio=sk_SSL_CIPHER_dup(cl);
|
|
if (prio == NULL) goto mem_err;
|
|
allow = cs;
|
|
}
|
|
else
|
|
{
|
|
prio = cs;
|
|
allow = cl;
|
|
}
|
|
for (z=0; z<sk_SSL_CIPHER_num(prio); z++)
|
|
{
|
|
if (sk_SSL_CIPHER_find(allow,sk_SSL_CIPHER_value(prio,z)) < 0)
|
|
{
|
|
sk_SSL_CIPHER_delete(prio,z);
|
|
z--;
|
|
}
|
|
}
|
|
if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE)
|
|
{
|
|
sk_SSL_CIPHER_free(s->session->ciphers);
|
|
s->session->ciphers = prio;
|
|
}
|
|
/* s->session->ciphers should now have a list of
|
|
* ciphers that are on both the client and server.
|
|
* This list is ordered by the order the client sent
|
|
* the ciphers or in the order of the server's preference
|
|
* if SSL_OP_CIPHER_SERVER_PREFERENCE was set.
|
|
*/
|
|
}
|
|
p+=s->s2->tmp.cipher_spec_length;
|
|
/* done cipher selection */
|
|
|
|
/* session id extracted already */
|
|
p+=s->s2->tmp.session_id_length;
|
|
|
|
/* challenge */
|
|
if (s->s2->challenge_length > sizeof s->s2->challenge)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
memcpy(s->s2->challenge,p,(unsigned int)s->s2->challenge_length);
|
|
return(1);
|
|
mem_err:
|
|
SSLerr(SSL_F_GET_CLIENT_HELLO,ERR_R_MALLOC_FAILURE);
|
|
return(0);
|
|
}
|
|
|
|
static int server_hello(SSL *s)
|
|
{
|
|
unsigned char *p,*d;
|
|
int n,hit;
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (s->state == SSL2_ST_SEND_SERVER_HELLO_A)
|
|
{
|
|
d=p+11;
|
|
*(p++)=SSL2_MT_SERVER_HELLO; /* type */
|
|
hit=s->hit;
|
|
*(p++)=(unsigned char)hit;
|
|
#if 1
|
|
if (!hit)
|
|
{
|
|
if (s->session->sess_cert != NULL)
|
|
/* This can't really happen because get_client_hello
|
|
* has called ssl_get_new_session, which does not set
|
|
* sess_cert. */
|
|
ssl_sess_cert_free(s->session->sess_cert);
|
|
s->session->sess_cert = ssl_sess_cert_new();
|
|
if (s->session->sess_cert == NULL)
|
|
{
|
|
SSLerr(SSL_F_SERVER_HELLO, ERR_R_MALLOC_FAILURE);
|
|
return(-1);
|
|
}
|
|
}
|
|
/* If 'hit' is set, then s->sess_cert may be non-NULL or NULL,
|
|
* depending on whether it survived in the internal cache
|
|
* or was retrieved from an external cache.
|
|
* If it is NULL, we cannot put any useful data in it anyway,
|
|
* so we don't touch it.
|
|
*/
|
|
|
|
#else /* That's what used to be done when cert_st and sess_cert_st were
|
|
* the same. */
|
|
if (!hit)
|
|
{ /* else add cert to session */
|
|
CRYPTO_add(&s->cert->references,1,CRYPTO_LOCK_SSL_CERT);
|
|
if (s->session->sess_cert != NULL)
|
|
ssl_cert_free(s->session->sess_cert);
|
|
s->session->sess_cert=s->cert;
|
|
}
|
|
else /* We have a session id-cache hit, if the
|
|
* session-id has no certificate listed against
|
|
* the 'cert' structure, grab the 'old' one
|
|
* listed against the SSL connection */
|
|
{
|
|
if (s->session->sess_cert == NULL)
|
|
{
|
|
CRYPTO_add(&s->cert->references,1,
|
|
CRYPTO_LOCK_SSL_CERT);
|
|
s->session->sess_cert=s->cert;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (s->cert == NULL)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE);
|
|
SSLerr(SSL_F_SERVER_HELLO,SSL_R_NO_CERTIFICATE_SPECIFIED);
|
|
return(-1);
|
|
}
|
|
|
|
if (hit)
|
|
{
|
|
*(p++)=0; /* no certificate type */
|
|
s2n(s->version,p); /* version */
|
|
s2n(0,p); /* cert len */
|
|
s2n(0,p); /* ciphers len */
|
|
}
|
|
else
|
|
{
|
|
/* EAY EAY */
|
|
/* put certificate type */
|
|
*(p++)=SSL2_CT_X509_CERTIFICATE;
|
|
s2n(s->version,p); /* version */
|
|
n=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL);
|
|
s2n(n,p); /* certificate length */
|
|
i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&d);
|
|
n=0;
|
|
|
|
/* lets send out the ciphers we like in the
|
|
* prefered order */
|
|
sk= s->session->ciphers;
|
|
n=ssl_cipher_list_to_bytes(s,s->session->ciphers,d,0);
|
|
d+=n;
|
|
s2n(n,p); /* add cipher length */
|
|
}
|
|
|
|
/* make and send conn_id */
|
|
s2n(SSL2_CONNECTION_ID_LENGTH,p); /* add conn_id length */
|
|
s->s2->conn_id_length=SSL2_CONNECTION_ID_LENGTH;
|
|
if(RAND_pseudo_bytes(s->s2->conn_id,(int)s->s2->conn_id_length) <= 0)
|
|
return -1;
|
|
memcpy(d,s->s2->conn_id,SSL2_CONNECTION_ID_LENGTH);
|
|
d+=SSL2_CONNECTION_ID_LENGTH;
|
|
|
|
s->state=SSL2_ST_SEND_SERVER_HELLO_B;
|
|
s->init_num=d-(unsigned char *)s->init_buf->data;
|
|
s->init_off=0;
|
|
}
|
|
/* SSL2_ST_SEND_SERVER_HELLO_B */
|
|
/* If we are using TCP/IP, the performance is bad if we do 2
|
|
* writes without a read between them. This occurs when
|
|
* Session-id reuse is used, so I will put in a buffering module
|
|
*/
|
|
if (s->hit)
|
|
{
|
|
if (!ssl_init_wbio_buffer(s,1)) return(-1);
|
|
}
|
|
|
|
return(ssl2_do_write(s));
|
|
}
|
|
|
|
static int get_client_finished(SSL *s)
|
|
{
|
|
unsigned char *p;
|
|
int i, n;
|
|
unsigned long len;
|
|
|
|
p=(unsigned char *)s->init_buf->data;
|
|
if (s->state == SSL2_ST_GET_CLIENT_FINISHED_A)
|
|
{
|
|
i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num);
|
|
if (i < 1-s->init_num)
|
|
return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i));
|
|
s->init_num += i;
|
|
|
|
if (*p != SSL2_MT_CLIENT_FINISHED)
|
|
{
|
|
if (*p != SSL2_MT_ERROR)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE);
|
|
}
|
|
else
|
|
{
|
|
SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_PEER_ERROR);
|
|
/* try to read the error message */
|
|
i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num);
|
|
return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i);
|
|
}
|
|
return(-1);
|
|
}
|
|
s->state=SSL2_ST_GET_CLIENT_FINISHED_B;
|
|
}
|
|
|
|
/* SSL2_ST_GET_CLIENT_FINISHED_B */
|
|
if (s->s2->conn_id_length > sizeof s->s2->conn_id)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
len = 1 + (unsigned long)s->s2->conn_id_length;
|
|
n = (int)len - s->init_num;
|
|
i = ssl2_read(s,(char *)&(p[s->init_num]),n);
|
|
if (i < n)
|
|
{
|
|
return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i));
|
|
}
|
|
if (s->msg_callback)
|
|
s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-FINISHED */
|
|
p += 1;
|
|
if (memcmp(p,s->s2->conn_id,s->s2->conn_id_length) != 0)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_CONNECTION_ID_IS_DIFFERENT);
|
|
return(-1);
|
|
}
|
|
return(1);
|
|
}
|
|
|
|
static int server_verify(SSL *s)
|
|
{
|
|
unsigned char *p;
|
|
|
|
if (s->state == SSL2_ST_SEND_SERVER_VERIFY_A)
|
|
{
|
|
p=(unsigned char *)s->init_buf->data;
|
|
*(p++)=SSL2_MT_SERVER_VERIFY;
|
|
if (s->s2->challenge_length > sizeof s->s2->challenge)
|
|
{
|
|
SSLerr(SSL_F_SERVER_VERIFY, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
memcpy(p,s->s2->challenge,(unsigned int)s->s2->challenge_length);
|
|
/* p+=s->s2->challenge_length; */
|
|
|
|
s->state=SSL2_ST_SEND_SERVER_VERIFY_B;
|
|
s->init_num=s->s2->challenge_length+1;
|
|
s->init_off=0;
|
|
}
|
|
return(ssl2_do_write(s));
|
|
}
|
|
|
|
static int server_finish(SSL *s)
|
|
{
|
|
unsigned char *p;
|
|
|
|
if (s->state == SSL2_ST_SEND_SERVER_FINISHED_A)
|
|
{
|
|
p=(unsigned char *)s->init_buf->data;
|
|
*(p++)=SSL2_MT_SERVER_FINISHED;
|
|
|
|
if (s->session->session_id_length > sizeof s->session->session_id)
|
|
{
|
|
SSLerr(SSL_F_SERVER_FINISH, ERR_R_INTERNAL_ERROR);
|
|
return -1;
|
|
}
|
|
memcpy(p,s->session->session_id, (unsigned int)s->session->session_id_length);
|
|
/* p+=s->session->session_id_length; */
|
|
|
|
s->state=SSL2_ST_SEND_SERVER_FINISHED_B;
|
|
s->init_num=s->session->session_id_length+1;
|
|
s->init_off=0;
|
|
}
|
|
|
|
/* SSL2_ST_SEND_SERVER_FINISHED_B */
|
|
return(ssl2_do_write(s));
|
|
}
|
|
|
|
/* send the request and check the response */
|
|
static int request_certificate(SSL *s)
|
|
{
|
|
unsigned char *p,*p2,*buf2;
|
|
unsigned char *ccd;
|
|
int i,j,ctype,ret= -1;
|
|
unsigned long len;
|
|
X509 *x509=NULL;
|
|
STACK_OF(X509) *sk=NULL;
|
|
|
|
ccd=s->s2->tmp.ccl;
|
|
if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_A)
|
|
{
|
|
p=(unsigned char *)s->init_buf->data;
|
|
*(p++)=SSL2_MT_REQUEST_CERTIFICATE;
|
|
*(p++)=SSL2_AT_MD5_WITH_RSA_ENCRYPTION;
|
|
if(RAND_pseudo_bytes(ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH) <= 0)
|
|
return -1;
|
|
memcpy(p,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH);
|
|
|
|
s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_B;
|
|
s->init_num=SSL2_MIN_CERT_CHALLENGE_LENGTH+2;
|
|
s->init_off=0;
|
|
}
|
|
|
|
if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_B)
|
|
{
|
|
i=ssl2_do_write(s);
|
|
if (i <= 0)
|
|
{
|
|
ret=i;
|
|
goto end;
|
|
}
|
|
|
|
s->init_num=0;
|
|
s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_C;
|
|
}
|
|
|
|
if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_C)
|
|
{
|
|
p=(unsigned char *)s->init_buf->data;
|
|
i=ssl2_read(s,(char *)&(p[s->init_num]),6-s->init_num); /* try to read 6 octets ... */
|
|
if (i < 3-s->init_num) /* ... but don't call ssl2_part_read now if we got at least 3
|
|
* (probably NO-CERTIFICATE-ERROR) */
|
|
{
|
|
ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i);
|
|
goto end;
|
|
}
|
|
s->init_num += i;
|
|
|
|
if ((s->init_num >= 3) && (p[0] == SSL2_MT_ERROR))
|
|
{
|
|
n2s(p,i);
|
|
if (i != SSL2_PE_NO_CERTIFICATE)
|
|
{
|
|
/* not the error message we expected -- let ssl2_part_read handle it */
|
|
s->init_num -= 3;
|
|
ret = ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE, 3);
|
|
goto end;
|
|
}
|
|
|
|
if (s->msg_callback)
|
|
s->msg_callback(0, s->version, 0, p, 3, s, s->msg_callback_arg); /* ERROR */
|
|
|
|
/* this is the one place where we can recover from an SSL 2.0 error */
|
|
|
|
if (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);
|
|
goto end;
|
|
}
|
|
ret=1;
|
|
goto end;
|
|
}
|
|
if ((*(p++) != SSL2_MT_CLIENT_CERTIFICATE) || (s->init_num < 6))
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_SHORT_READ);
|
|
goto end;
|
|
}
|
|
if (s->init_num != 6)
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_INTERNAL_ERROR);
|
|
goto end;
|
|
}
|
|
|
|
/* ok we have a response */
|
|
/* certificate type, there is only one right now. */
|
|
ctype= *(p++);
|
|
if (ctype != SSL2_AT_MD5_WITH_RSA_ENCRYPTION)
|
|
{
|
|
ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_RESPONSE_ARGUMENT);
|
|
goto end;
|
|
}
|
|
n2s(p,i); s->s2->tmp.clen=i;
|
|
n2s(p,i); s->s2->tmp.rlen=i;
|
|
s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_D;
|
|
}
|
|
|
|
/* SSL2_ST_SEND_REQUEST_CERTIFICATE_D */
|
|
p=(unsigned char *)s->init_buf->data;
|
|
len = 6 + (unsigned long)s->s2->tmp.clen + (unsigned long)s->s2->tmp.rlen;
|
|
if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_MESSAGE_TOO_LONG);
|
|
goto end;
|
|
}
|
|
j = (int)len - s->init_num;
|
|
i = ssl2_read(s,(char *)&(p[s->init_num]),j);
|
|
if (i < j)
|
|
{
|
|
ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i);
|
|
goto end;
|
|
}
|
|
if (s->msg_callback)
|
|
s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-CERTIFICATE */
|
|
p += 6;
|
|
|
|
x509=(X509 *)d2i_X509(NULL,&p,(long)s->s2->tmp.clen);
|
|
if (x509 == NULL)
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_X509_LIB);
|
|
goto msg_end;
|
|
}
|
|
|
|
if (((sk=sk_X509_new_null()) == NULL) || (!sk_X509_push(sk,x509)))
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE);
|
|
goto msg_end;
|
|
}
|
|
|
|
i=ssl_verify_cert_chain(s,sk);
|
|
|
|
if (i) /* we like the packet, now check the chksum */
|
|
{
|
|
EVP_MD_CTX ctx;
|
|
EVP_PKEY *pkey=NULL;
|
|
|
|
EVP_MD_CTX_init(&ctx);
|
|
EVP_VerifyInit_ex(&ctx,s->ctx->rsa_md5, NULL);
|
|
EVP_VerifyUpdate(&ctx,s->s2->key_material,
|
|
s->s2->key_material_length);
|
|
EVP_VerifyUpdate(&ctx,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH);
|
|
|
|
i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL);
|
|
buf2=OPENSSL_malloc((unsigned int)i);
|
|
if (buf2 == NULL)
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE);
|
|
goto msg_end;
|
|
}
|
|
p2=buf2;
|
|
i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&p2);
|
|
EVP_VerifyUpdate(&ctx,buf2,(unsigned int)i);
|
|
OPENSSL_free(buf2);
|
|
|
|
pkey=X509_get_pubkey(x509);
|
|
if (pkey == NULL) goto end;
|
|
i=EVP_VerifyFinal(&ctx,p,s->s2->tmp.rlen,pkey);
|
|
EVP_PKEY_free(pkey);
|
|
EVP_MD_CTX_cleanup(&ctx);
|
|
|
|
if (i)
|
|
{
|
|
if (s->session->peer != NULL)
|
|
X509_free(s->session->peer);
|
|
s->session->peer=x509;
|
|
CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
|
|
s->session->verify_result = s->verify_result;
|
|
ret=1;
|
|
goto end;
|
|
}
|
|
else
|
|
{
|
|
SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_CHECKSUM);
|
|
goto msg_end;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg_end:
|
|
ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);
|
|
}
|
|
end:
|
|
sk_X509_free(sk);
|
|
X509_free(x509);
|
|
return(ret);
|
|
}
|
|
|
|
static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from,
|
|
unsigned char *to, int padding)
|
|
{
|
|
RSA *rsa;
|
|
int i;
|
|
|
|
if ((c == NULL) || (c->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL))
|
|
{
|
|
SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_NO_PRIVATEKEY);
|
|
return(-1);
|
|
}
|
|
if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey->type != EVP_PKEY_RSA)
|
|
{
|
|
SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA);
|
|
return(-1);
|
|
}
|
|
rsa=c->pkeys[SSL_PKEY_RSA_ENC].privatekey->pkey.rsa;
|
|
|
|
/* we have the public key */
|
|
i=RSA_private_decrypt(len,from,to,rsa,padding);
|
|
if (i < 0)
|
|
SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,ERR_R_RSA_LIB);
|
|
return(i);
|
|
}
|
|
#else /* !OPENSSL_NO_SSL2 */
|
|
|
|
# if PEDANTIC
|
|
static void *dummy=&dummy;
|
|
# endif
|
|
|
|
#endif
|