sl@0: /* ssl/s3_clnt.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer. 
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in
sl@0:  *    the documentation and/or other materials provided with the
sl@0:  *    distribution.
sl@0:  *
sl@0:  * 3. All advertising materials mentioning features or use of this
sl@0:  *    software must display the following acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
sl@0:  *
sl@0:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
sl@0:  *    endorse or promote products derived from this software without
sl@0:  *    prior written permission. For written permission, please contact
sl@0:  *    openssl-core@openssl.org.
sl@0:  *
sl@0:  * 5. Products derived from this software may not be called "OpenSSL"
sl@0:  *    nor may "OpenSSL" appear in their names without prior written
sl@0:  *    permission of the OpenSSL Project.
sl@0:  *
sl@0:  * 6. Redistributions of any form whatsoever must retain the following
sl@0:  *    acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
sl@0:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sl@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
sl@0:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
sl@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
sl@0:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
sl@0:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sl@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
sl@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  * ====================================================================
sl@0:  *
sl@0:  * This product includes cryptographic software written by Eric Young
sl@0:  * (eay@cryptsoft.com).  This product includes software written by Tim
sl@0:  * Hudson (tjh@cryptsoft.com).
sl@0:  *
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
sl@0:  *
sl@0:  * Portions of the attached software ("Contribution") are developed by 
sl@0:  * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
sl@0:  *
sl@0:  * The Contribution is licensed pursuant to the OpenSSL open source
sl@0:  * license provided above.
sl@0:  *
sl@0:  * ECC cipher suite support in OpenSSL originally written by
sl@0:  * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
sl@0:  *
sl@0:  */
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0:  
sl@0: #include <stdio.h>
sl@0: #include "ssl_locl.h"
sl@0: #include "kssl_lcl.h"
sl@0: #include <openssl/buffer.h>
sl@0: #include <openssl/rand.h>
sl@0: #include <openssl/objects.h>
sl@0: #include <openssl/evp.h>
sl@0: #include <openssl/md5.h>
sl@0: #ifndef OPENSSL_NO_DH
sl@0: #include <openssl/dh.h>
sl@0: #endif
sl@0: #include <openssl/bn.h>
sl@0: 
sl@0: 
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libssl_wsd.h"
sl@0: #endif
sl@0: 
sl@0: 
sl@0: #ifdef EMULATOR
sl@0: 
sl@0: 	GET_STATIC_VAR_FROM_TLS(SSLv3_client_method_data,s3_clnt,SSL_METHOD)
sl@0: 	
sl@0: 	#define SSLv3_client_method_data (*GET_WSD_VAR_NAME(SSLv3_client_method_data,s3_clnt,s)())
sl@0: 	
sl@0: #endif
sl@0: 
sl@0: static SSL_METHOD *ssl3_get_client_method(int ver);
sl@0: static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
sl@0: 
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: static int curve_id2nid(int curve_id);
sl@0: int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
sl@0: #endif
sl@0: 
sl@0: static SSL_METHOD *ssl3_get_client_method(int ver)
sl@0: 	{
sl@0: 	if (ver == SSL3_VERSION)
sl@0: 		return(SSLv3_client_method());
sl@0: 	else
sl@0: 		return(NULL);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C IMPLEMENT_ssl3_meth_func(SSLv3_client_method,
sl@0: 			ssl_undefined_function,
sl@0: 			ssl3_connect,
sl@0: 			ssl3_get_client_method)
sl@0: 
sl@0: int ssl3_connect(SSL *s)
sl@0: 	{
sl@0: 	BUF_MEM *buf=NULL;
sl@0: 	unsigned long Time=(unsigned long)time(NULL),l;
sl@0: 	long num1;
sl@0: 	void (*cb)(const SSL *ssl,int type,int val)=NULL;
sl@0: 	int ret= -1;
sl@0: 	int new_state,state,skip=0;;
sl@0: 
sl@0: 	RAND_add(&Time,sizeof(Time),0);
sl@0: 	ERR_clear_error();
sl@0: 	clear_sys_error();
sl@0: 
sl@0: 	if (s->info_callback != NULL)
sl@0: 		cb=s->info_callback;
sl@0: 	else if (s->ctx->info_callback != NULL)
sl@0: 		cb=s->ctx->info_callback;
sl@0: 	
sl@0: 	s->in_handshake++;
sl@0: 	if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		state=s->state;
sl@0: 
sl@0: 		switch(s->state)
sl@0: 			{
sl@0: 		case SSL_ST_RENEGOTIATE:
sl@0: 			s->new_session=1;
sl@0: 			s->state=SSL_ST_CONNECT;
sl@0: 			s->ctx->stats.sess_connect_renegotiate++;
sl@0: 			/* break */
sl@0: 		case SSL_ST_BEFORE:
sl@0: 		case SSL_ST_CONNECT:
sl@0: 		case SSL_ST_BEFORE|SSL_ST_CONNECT:
sl@0: 		case SSL_ST_OK|SSL_ST_CONNECT:
sl@0: 
sl@0: 			s->server=0;
sl@0: 			if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
sl@0: 
sl@0: 			if ((s->version & 0xff00 ) != 0x0300)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
sl@0: 				ret = -1;
sl@0: 				goto end;
sl@0: 				}
sl@0: 				
sl@0: 			/* s->version=SSL3_VERSION; */
sl@0: 			s->type=SSL_ST_CONNECT;
sl@0: 
sl@0: 			if (s->init_buf == NULL)
sl@0: 				{
sl@0: 				if ((buf=BUF_MEM_new()) == NULL)
sl@0: 					{
sl@0: 					ret= -1;
sl@0: 					goto end;
sl@0: 					}
sl@0: 				if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
sl@0: 					{
sl@0: 					ret= -1;
sl@0: 					goto end;
sl@0: 					}
sl@0: 				s->init_buf=buf;
sl@0: 				buf=NULL;
sl@0: 				}
sl@0: 
sl@0: 			if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
sl@0: 
sl@0: 			/* setup buffing BIO */
sl@0: 			if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }
sl@0: 
sl@0: 			/* don't push the buffering BIO quite yet */
sl@0: 
sl@0: 			ssl3_init_finished_mac(s);
sl@0: 
sl@0: 			s->state=SSL3_ST_CW_CLNT_HELLO_A;
sl@0: 			s->ctx->stats.sess_connect++;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_CLNT_HELLO_A:
sl@0: 		case SSL3_ST_CW_CLNT_HELLO_B:
sl@0: 
sl@0: 			s->shutdown=0;
sl@0: 			ret=ssl3_client_hello(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CR_SRVR_HELLO_A;
sl@0: 			s->init_num=0;
sl@0: 
sl@0: 			/* turn on buffering for the next lot of output */
sl@0: 			if (s->bbio != s->wbio)
sl@0: 				s->wbio=BIO_push(s->bbio,s->wbio);
sl@0: 
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CR_SRVR_HELLO_A:
sl@0: 		case SSL3_ST_CR_SRVR_HELLO_B:
sl@0: 			ret=ssl3_get_server_hello(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			if (s->hit)
sl@0: 				s->state=SSL3_ST_CR_FINISHED_A;
sl@0: 			else
sl@0: 				s->state=SSL3_ST_CR_CERT_A;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CR_CERT_A:
sl@0: 		case SSL3_ST_CR_CERT_B:
sl@0: 
sl@0: 			/* Check if it is anon DH/ECDH */
sl@0: 			if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
sl@0: 				{
sl@0: 				ret=ssl3_get_server_certificate(s);
sl@0: 				if (ret <= 0) goto end;
sl@0: 				}
sl@0: 			else
sl@0: 				skip=1;
sl@0: 			s->state=SSL3_ST_CR_KEY_EXCH_A;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CR_KEY_EXCH_A:
sl@0: 		case SSL3_ST_CR_KEY_EXCH_B:
sl@0: 			ret=ssl3_get_key_exchange(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CR_CERT_REQ_A;
sl@0: 			s->init_num=0;
sl@0: 
sl@0: 			/* at this point we check that we have the
sl@0: 			 * required stuff from the server */
sl@0: 			if (!ssl3_check_cert_and_algorithm(s))
sl@0: 				{
sl@0: 				ret= -1;
sl@0: 				goto end;
sl@0: 				}
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CR_CERT_REQ_A:
sl@0: 		case SSL3_ST_CR_CERT_REQ_B:
sl@0: 			ret=ssl3_get_certificate_request(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CR_SRVR_DONE_A;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CR_SRVR_DONE_A:
sl@0: 		case SSL3_ST_CR_SRVR_DONE_B:
sl@0: 			ret=ssl3_get_server_done(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			if (s->s3->tmp.cert_req)
sl@0: 				s->state=SSL3_ST_CW_CERT_A;
sl@0: 			else
sl@0: 				s->state=SSL3_ST_CW_KEY_EXCH_A;
sl@0: 			s->init_num=0;
sl@0: 
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_CERT_A:
sl@0: 		case SSL3_ST_CW_CERT_B:
sl@0: 		case SSL3_ST_CW_CERT_C:
sl@0: 		case SSL3_ST_CW_CERT_D:
sl@0: 			ret=ssl3_send_client_certificate(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CW_KEY_EXCH_A;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_KEY_EXCH_A:
sl@0: 		case SSL3_ST_CW_KEY_EXCH_B:
sl@0: 			ret=ssl3_send_client_key_exchange(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			l=s->s3->tmp.new_cipher->algorithms;
sl@0: 			/* EAY EAY EAY need to check for DH fix cert
sl@0: 			 * sent back */
sl@0: 			/* For TLS, cert_req is set to 2, so a cert chain
sl@0: 			 * of nothing is sent, but no verify packet is sent */
sl@0: 			/* XXX: For now, we do not support client 
sl@0: 			 * authentication in ECDH cipher suites with
sl@0: 			 * ECDH (rather than ECDSA) certificates.
sl@0: 			 * We need to skip the certificate verify 
sl@0: 			 * message when client's ECDH public key is sent 
sl@0: 			 * inside the client certificate.
sl@0: 			 */
sl@0: 			if (s->s3->tmp.cert_req == 1)
sl@0: 				{
sl@0: 				s->state=SSL3_ST_CW_CERT_VRFY_A;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				s->state=SSL3_ST_CW_CHANGE_A;
sl@0: 				s->s3->change_cipher_spec=0;
sl@0: 				}
sl@0: 
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_CERT_VRFY_A:
sl@0: 		case SSL3_ST_CW_CERT_VRFY_B:
sl@0: 			ret=ssl3_send_client_verify(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CW_CHANGE_A;
sl@0: 			s->init_num=0;
sl@0: 			s->s3->change_cipher_spec=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_CHANGE_A:
sl@0: 		case SSL3_ST_CW_CHANGE_B:
sl@0: 			ret=ssl3_send_change_cipher_spec(s,
sl@0: 				SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CW_FINISHED_A;
sl@0: 			s->init_num=0;
sl@0: 
sl@0: 			s->session->cipher=s->s3->tmp.new_cipher;
sl@0: #ifdef OPENSSL_NO_COMP
sl@0: 			s->session->compress_meth=0;
sl@0: #else
sl@0: 			if (s->s3->tmp.new_compression == NULL)
sl@0: 				s->session->compress_meth=0;
sl@0: 			else
sl@0: 				s->session->compress_meth=
sl@0: 					s->s3->tmp.new_compression->id;
sl@0: #endif
sl@0: 			if (!s->method->ssl3_enc->setup_key_block(s))
sl@0: 				{
sl@0: 				ret= -1;
sl@0: 				goto end;
sl@0: 				}
sl@0: 
sl@0: 			if (!s->method->ssl3_enc->change_cipher_state(s,
sl@0: 				SSL3_CHANGE_CIPHER_CLIENT_WRITE))
sl@0: 				{
sl@0: 				ret= -1;
sl@0: 				goto end;
sl@0: 				}
sl@0: 
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_FINISHED_A:
sl@0: 		case SSL3_ST_CW_FINISHED_B:
sl@0: 			ret=ssl3_send_finished(s,
sl@0: 				SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
sl@0: 				s->method->ssl3_enc->client_finished_label,
sl@0: 				s->method->ssl3_enc->client_finished_label_len);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL3_ST_CW_FLUSH;
sl@0: 
sl@0: 			/* clear flags */
sl@0: 			s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
sl@0: 			if (s->hit)
sl@0: 				{
sl@0: 				s->s3->tmp.next_state=SSL_ST_OK;
sl@0: 				if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
sl@0: 					{
sl@0: 					s->state=SSL_ST_OK;
sl@0: 					s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
sl@0: 					s->s3->delay_buf_pop_ret=0;
sl@0: 					}
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 
sl@0: 				
sl@0: 				s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
sl@0: 				}
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 
sl@0: 
sl@0: 		case SSL3_ST_CR_FINISHED_A:
sl@0: 		case SSL3_ST_CR_FINISHED_B:
sl@0: 
sl@0: 			ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
sl@0: 				SSL3_ST_CR_FINISHED_B);
sl@0: 			if (ret <= 0) goto end;
sl@0: 
sl@0: 			if (s->hit)
sl@0: 				s->state=SSL3_ST_CW_CHANGE_A;
sl@0: 			else
sl@0: 				s->state=SSL_ST_OK;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL3_ST_CW_FLUSH:
sl@0: 			/* number of bytes to be flushed */
sl@0: 			num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
sl@0: 			if (num1 > 0)
sl@0: 				{
sl@0: 				s->rwstate=SSL_WRITING;
sl@0: 				num1=BIO_flush(s->wbio);
sl@0: 				if (num1 <= 0) { ret= -1; goto end; }
sl@0: 				s->rwstate=SSL_NOTHING;
sl@0: 				}
sl@0: 
sl@0: 			s->state=s->s3->tmp.next_state;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL_ST_OK:
sl@0: 			/* clean a few things up */
sl@0: 			ssl3_cleanup_key_block(s);
sl@0: 
sl@0: 			if (s->init_buf != NULL)
sl@0: 				{
sl@0: 				BUF_MEM_free(s->init_buf);
sl@0: 				s->init_buf=NULL;
sl@0: 				}
sl@0: 
sl@0: 			/* If we are not 'joining' the last two packets,
sl@0: 			 * remove the buffering now */
sl@0: 			if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
sl@0: 				ssl_free_wbio_buffer(s);
sl@0: 			/* else do it later in ssl3_write */
sl@0: 
sl@0: 			s->init_num=0;
sl@0: 			s->new_session=0;
sl@0: 
sl@0: 			ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
sl@0: 			if (s->hit) s->ctx->stats.sess_hit++;
sl@0: 
sl@0: 			ret=1;
sl@0: 			/* s->server=0; */
sl@0: 			s->handshake_func=ssl3_connect;
sl@0: 			s->ctx->stats.sess_connect_good++;
sl@0: 
sl@0: 			if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
sl@0: 
sl@0: 			goto end;
sl@0: 			/* break; */
sl@0: 			
sl@0: 		default:
sl@0: 			SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE);
sl@0: 			ret= -1;
sl@0: 			goto end;
sl@0: 			/* break; */
sl@0: 			}
sl@0: 
sl@0: 		/* did we do anything */
sl@0: 		if (!s->s3->tmp.reuse_message && !skip)
sl@0: 			{
sl@0: 			if (s->debug)
sl@0: 				{
sl@0: 				if ((ret=BIO_flush(s->wbio)) <= 0)
sl@0: 					goto end;
sl@0: 				}
sl@0: 
sl@0: 			if ((cb != NULL) && (s->state != state))
sl@0: 				{
sl@0: 				new_state=s->state;
sl@0: 				s->state=state;
sl@0: 				cb(s,SSL_CB_CONNECT_LOOP,1);
sl@0: 				s->state=new_state;
sl@0: 				}
sl@0: 			}
sl@0: 		skip=0;
sl@0: 		}
sl@0: end:
sl@0: 	s->in_handshake--;
sl@0: 	if (buf != NULL)
sl@0: 		BUF_MEM_free(buf);
sl@0: 	if (cb != NULL)
sl@0: 		cb(s,SSL_CB_CONNECT_EXIT,ret);
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: int ssl3_client_hello(SSL *s)
sl@0: 	{
sl@0: 	unsigned char *buf;
sl@0: 	unsigned char *p,*d;
sl@0: 	int i;
sl@0: 	unsigned long Time,l;
sl@0: #ifndef OPENSSL_NO_COMP
sl@0: 	int j;
sl@0: 	SSL_COMP *comp;
sl@0: #endif
sl@0: 
sl@0: 	buf=(unsigned char *)s->init_buf->data;
sl@0: 	if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
sl@0: 		{
sl@0: 		if ((s->session == NULL) ||
sl@0: 			(s->session->ssl_version != s->version) ||
sl@0: 			(s->session->not_resumable))
sl@0: 			{
sl@0: 			if (!ssl_get_new_session(s,0))
sl@0: 				goto err;
sl@0: 			}
sl@0: 		/* else use the pre-loaded session */
sl@0: 
sl@0: 		p=s->s3->client_random;
sl@0: 		Time=(unsigned long)time(NULL);			/* Time */
sl@0: 		l2n(Time,p);
sl@0: 		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
sl@0: 			goto err;
sl@0: 
sl@0: 		/* Do the message type and length last */
sl@0: 		d=p= &(buf[4]);
sl@0: 
sl@0: 		*(p++)=s->version>>8;
sl@0: 		*(p++)=s->version&0xff;
sl@0: 		s->client_version=s->version;
sl@0: 
sl@0: 		/* Random stuff */
sl@0: 		memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
sl@0: 		p+=SSL3_RANDOM_SIZE;
sl@0: 
sl@0: 		/* Session ID */
sl@0: 		if (s->new_session)
sl@0: 			i=0;
sl@0: 		else
sl@0: 			i=s->session->session_id_length;
sl@0: 		*(p++)=i;
sl@0: 		if (i != 0)
sl@0: 			{
sl@0: 			if (i > (int)sizeof(s->session->session_id))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			memcpy(p,s->session->session_id,i);
sl@0: 			p+=i;
sl@0: 			}
sl@0: 		
sl@0: 		/* Ciphers supported */
sl@0: 		i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
sl@0: 		if (i == 0)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		s2n(i,p);
sl@0: 		p+=i;
sl@0: 
sl@0: 		/* COMPRESSION */
sl@0: #ifdef OPENSSL_NO_COMP
sl@0: 		*(p++)=1;
sl@0: #else
sl@0: 		if (s->ctx->comp_methods == NULL)
sl@0: 			j=0;
sl@0: 		else
sl@0: 			j=sk_SSL_COMP_num(s->ctx->comp_methods);
sl@0: 		*(p++)=1+j;
sl@0: 		for (i=0; i<j; i++)
sl@0: 			{
sl@0: 			comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
sl@0: 			*(p++)=comp->id;
sl@0: 			}
sl@0: #endif
sl@0: 		*(p++)=0; /* Add the NULL method */
sl@0: 		
sl@0: 		l=(p-d);
sl@0: 		d=buf;
sl@0: 		*(d++)=SSL3_MT_CLIENT_HELLO;
sl@0: 		l2n3(l,d);
sl@0: 
sl@0: 		s->state=SSL3_ST_CW_CLNT_HELLO_B;
sl@0: 		/* number of bytes to write */
sl@0: 		s->init_num=p-buf;
sl@0: 		s->init_off=0;
sl@0: 		}
sl@0: 
sl@0: 	/* SSL3_ST_CW_CLNT_HELLO_B */
sl@0: 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
sl@0: err:
sl@0: 	return(-1);
sl@0: 	}
sl@0: 
sl@0: int ssl3_get_server_hello(SSL *s)
sl@0: 	{
sl@0: 	STACK_OF(SSL_CIPHER) *sk;
sl@0: 	SSL_CIPHER *c;
sl@0: 	unsigned char *p,*d;
sl@0: 	int i,al,ok;
sl@0: 	unsigned int j;
sl@0: 	long n;
sl@0: #ifndef OPENSSL_NO_COMP
sl@0: 	SSL_COMP *comp;
sl@0: #endif
sl@0: 
sl@0: 	n=s->method->ssl_get_message(s,
sl@0: 		SSL3_ST_CR_SRVR_HELLO_A,
sl@0: 		SSL3_ST_CR_SRVR_HELLO_B,
sl@0: 		-1,
sl@0: 		20000, /* ?? */
sl@0: 		&ok);
sl@0: 
sl@0: 	if (!ok) return((int)n);
sl@0: 
sl@0: 	if ( SSL_version(s) == DTLS1_VERSION)
sl@0: 		{
sl@0: 		if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
sl@0: 			{
sl@0: 			if ( s->d1->send_cookie == 0)
sl@0: 				{
sl@0: 				s->s3->tmp.reuse_message = 1;
sl@0: 				return 1;
sl@0: 				}
sl@0: 			else /* already sent a cookie */
sl@0: 				{
sl@0: 				al=SSL_AD_UNEXPECTED_MESSAGE;
sl@0: 				SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	
sl@0: 	if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
sl@0: 		{
sl@0: 		al=SSL_AD_UNEXPECTED_MESSAGE;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 	d=p=(unsigned char *)s->init_msg;
sl@0: 
sl@0: 	if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);
sl@0: 		s->version=(s->version&0xff00)|p[1];
sl@0: 		al=SSL_AD_PROTOCOL_VERSION;
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	p+=2;
sl@0: 
sl@0: 	/* load the server hello data */
sl@0: 	/* load the server random */
sl@0: 	memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);
sl@0: 	p+=SSL3_RANDOM_SIZE;
sl@0: 
sl@0: 	/* get the session-id */
sl@0: 	j= *(p++);
sl@0: 
sl@0: 	if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
sl@0: 		{
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 	if (j != 0 && j == s->session->session_id_length
sl@0: 	    && memcmp(p,s->session->session_id,j) == 0)
sl@0: 	    {
sl@0: 	    if(s->sid_ctx_length != s->session->sid_ctx_length
sl@0: 	       || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
sl@0: 		{
sl@0: 		/* actually a client application bug */
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	    s->hit=1;
sl@0: 	    }
sl@0: 	else	/* a miss or crap from the other end */
sl@0: 		{
sl@0: 		/* If we were trying for session-id reuse, make a new
sl@0: 		 * SSL_SESSION so we don't stuff up other people */
sl@0: 		s->hit=0;
sl@0: 		if (s->session->session_id_length > 0)
sl@0: 			{
sl@0: 			if (!ssl_get_new_session(s,0))
sl@0: 				{
sl@0: 				al=SSL_AD_INTERNAL_ERROR;
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		s->session->session_id_length=j;
sl@0: 		memcpy(s->session->session_id,p,j); /* j could be 0 */
sl@0: 		}
sl@0: 	p+=j;
sl@0: 	c=ssl_get_cipher_by_char(s,p);
sl@0: 	if (c == NULL)
sl@0: 		{
sl@0: 		/* unknown cipher */
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	p+=ssl_put_cipher_by_char(s,NULL,NULL);
sl@0: 
sl@0: 	sk=ssl_get_ciphers_by_id(s);
sl@0: 	i=sk_SSL_CIPHER_find(sk,c);
sl@0: 	if (i < 0)
sl@0: 		{
sl@0: 		/* we did not say we would use this cipher */
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 	/* Depending on the session caching (internal/external), the cipher
sl@0: 	   and/or cipher_id values may not be set. Make sure that
sl@0: 	   cipher_id is set and use it for comparison. */
sl@0: 	if (s->session->cipher)
sl@0: 		s->session->cipher_id = s->session->cipher->id;
sl@0: 	if (s->hit && (s->session->cipher_id != c->id))
sl@0: 		{
sl@0: 		if (!(s->options &
sl@0: 			SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
sl@0: 			{
sl@0: 			al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 			SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		}
sl@0: 	s->s3->tmp.new_cipher=c;
sl@0: 
sl@0: 	/* lets get the compression algorithm */
sl@0: 	/* COMPRESSION */
sl@0: #ifdef OPENSSL_NO_COMP
sl@0: 	if (*(p++) != 0)
sl@0: 		{
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #else
sl@0: 	j= *(p++);
sl@0: 	if (j == 0)
sl@0: 		comp=NULL;
sl@0: 	else
sl@0: 		comp=ssl3_comp_find(s->ctx->comp_methods,j);
sl@0: 	
sl@0: 	if ((j != 0) && (comp == NULL))
sl@0: 		{
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		s->s3->tmp.new_compression=comp;
sl@0: 		}
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: 	if (p != (d+n))
sl@0: 		{
sl@0: 		/* wrong packet length */
sl@0: 		al=SSL_AD_DECODE_ERROR;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	return(1);
sl@0: f_err:
sl@0: 	ssl3_send_alert(s,SSL3_AL_FATAL,al);
sl@0: err:
sl@0: 	return(-1);
sl@0: 	}
sl@0: 
sl@0: int ssl3_get_server_certificate(SSL *s)
sl@0: 	{
sl@0: 	int al,i,ok,ret= -1;
sl@0: 	unsigned long n,nc,llen,l;
sl@0: 	X509 *x=NULL;
sl@0: 	const unsigned char *q,*p;
sl@0: 	unsigned char *d;
sl@0: 	STACK_OF(X509) *sk=NULL;
sl@0: 	SESS_CERT *sc;
sl@0: 	EVP_PKEY *pkey=NULL;
sl@0: 	int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
sl@0: 
sl@0: 	n=s->method->ssl_get_message(s,
sl@0: 		SSL3_ST_CR_CERT_A,
sl@0: 		SSL3_ST_CR_CERT_B,
sl@0: 		-1,
sl@0: 		s->max_cert_list,
sl@0: 		&ok);
sl@0: 
sl@0: 	if (!ok) return((int)n);
sl@0: 
sl@0: 	if ((s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) ||
sl@0: 		((s->s3->tmp.new_cipher->algorithms & SSL_aKRB5) && 
sl@0: 		(s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)))
sl@0: 		{
sl@0: 		s->s3->tmp.reuse_message=1;
sl@0: 		return(1);
sl@0: 		}
sl@0: 
sl@0: 	if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
sl@0: 		{
sl@0: 		al=SSL_AD_UNEXPECTED_MESSAGE;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	p=d=(unsigned char *)s->init_msg;
sl@0: 
sl@0: 	if ((sk=sk_X509_new_null()) == NULL)
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	n2l3(p,llen);
sl@0: 	if (llen+3 != n)
sl@0: 		{
sl@0: 		al=SSL_AD_DECODE_ERROR;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	for (nc=0; nc<llen; )
sl@0: 		{
sl@0: 		n2l3(p,l);
sl@0: 		if ((l+nc+3) > llen)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 
sl@0: 		q=p;
sl@0: 		x=d2i_X509(NULL,&q,l);
sl@0: 		if (x == NULL)
sl@0: 			{
sl@0: 			al=SSL_AD_BAD_CERTIFICATE;
sl@0: 			SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (q != (p+l))
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!sk_X509_push(sk,x))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		x=NULL;
sl@0: 		nc+=l+3;
sl@0: 		p=q;
sl@0: 		}
sl@0: 
sl@0: 	i=ssl_verify_cert_chain(s,sk);
sl@0: 	if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
sl@0: #ifndef OPENSSL_NO_KRB5
sl@0: 	        && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
sl@0: 	        != (SSL_aKRB5|SSL_kKRB5)
sl@0: #endif /* OPENSSL_NO_KRB5 */
sl@0: 	        )
sl@0: 		{
sl@0: 		al=ssl_verify_alarm_type(s->verify_result);
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
sl@0: 		goto f_err; 
sl@0: 		}
sl@0: 	ERR_clear_error(); /* but we keep s->verify_result */
sl@0: 
sl@0: 	sc=ssl_sess_cert_new();
sl@0: 	if (sc == NULL) goto err;
sl@0: 
sl@0: 	if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
sl@0: 	s->session->sess_cert=sc;
sl@0: 
sl@0: 	sc->cert_chain=sk;
sl@0: 	/* Inconsistency alert: cert_chain does include the peer's
sl@0: 	 * certificate, which we don't include in s3_srvr.c */
sl@0: 	x=sk_X509_value(sk,0);
sl@0: 	sk=NULL;
sl@0:  	/* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
sl@0: 
sl@0: 	pkey=X509_get_pubkey(x);
sl@0: 
sl@0: 	/* VRS: allow null cert if auth == KRB5 */
sl@0: 	need_cert =	((s->s3->tmp.new_cipher->algorithms
sl@0: 	                 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
sl@0: 	                 == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
sl@0: 
sl@0: #ifdef KSSL_DEBUG
sl@0: 	printf("pkey,x = %p, %p\n", pkey,x);
sl@0: 	printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
sl@0: 	printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
sl@0: 	        s->s3->tmp.new_cipher->algorithms, need_cert);
sl@0: #endif    /* KSSL_DEBUG */
sl@0: 
sl@0: 	if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
sl@0: 		{
sl@0: 		x=NULL;
sl@0: 		al=SSL3_AL_FATAL;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
sl@0: 			SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 	i=ssl_cert_type(x,pkey);
sl@0: 	if (need_cert && i < 0)
sl@0: 		{
sl@0: 		x=NULL;
sl@0: 		al=SSL3_AL_FATAL;
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
sl@0: 			SSL_R_UNKNOWN_CERTIFICATE_TYPE);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 	if (need_cert)
sl@0: 		{
sl@0: 		sc->peer_cert_type=i;
sl@0: 		CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
sl@0: 		/* Why would the following ever happen?
sl@0: 		 * We just created sc a couple of lines ago. */
sl@0: 		if (sc->peer_pkeys[i].x509 != NULL)
sl@0: 			X509_free(sc->peer_pkeys[i].x509);
sl@0: 		sc->peer_pkeys[i].x509=x;
sl@0: 		sc->peer_key= &(sc->peer_pkeys[i]);
sl@0: 
sl@0: 		if (s->session->peer != NULL)
sl@0: 			X509_free(s->session->peer);
sl@0: 		CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
sl@0: 		s->session->peer=x;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		sc->peer_cert_type=i;
sl@0: 		sc->peer_key= NULL;
sl@0: 
sl@0: 		if (s->session->peer != NULL)
sl@0: 			X509_free(s->session->peer);
sl@0: 		s->session->peer=NULL;
sl@0: 		}
sl@0: 	s->session->verify_result = s->verify_result;
sl@0: 
sl@0: 	x=NULL;
sl@0: 	ret=1;
sl@0: 
sl@0: 	if (0)
sl@0: 		{
sl@0: f_err:
sl@0: 		ssl3_send_alert(s,SSL3_AL_FATAL,al);
sl@0: 		}
sl@0: err:
sl@0: 	EVP_PKEY_free(pkey);
sl@0: 	X509_free(x);
sl@0: 	sk_X509_pop_free(sk,X509_free);
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: int ssl3_get_key_exchange(SSL *s)
sl@0: 	{
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
sl@0: #endif
sl@0: 	EVP_MD_CTX md_ctx;
sl@0: 	unsigned char *param,*p;
sl@0: 	int al,i,j,param_len,ok;
sl@0: 	long n,alg;
sl@0: 	EVP_PKEY *pkey=NULL;
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	RSA *rsa=NULL;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	DH *dh=NULL;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	EC_KEY *ecdh = NULL;
sl@0: 	BN_CTX *bn_ctx = NULL;
sl@0: 	EC_POINT *srvr_ecpoint = NULL;
sl@0: 	int curve_nid = 0;
sl@0: 	int encoded_pt_len = 0;
sl@0: #endif
sl@0: 
sl@0: 	/* use same message size as in ssl3_get_certificate_request()
sl@0: 	 * as ServerKeyExchange message may be skipped */
sl@0: 	n=s->method->ssl_get_message(s,
sl@0: 		SSL3_ST_CR_KEY_EXCH_A,
sl@0: 		SSL3_ST_CR_KEY_EXCH_B,
sl@0: 		-1,
sl@0: 		s->max_cert_list,
sl@0: 		&ok);
sl@0: 
sl@0: 	if (!ok) return((int)n);
sl@0: 
sl@0: 	if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)
sl@0: 		{
sl@0: 		s->s3->tmp.reuse_message=1;
sl@0: 		return(1);
sl@0: 		}
sl@0: 
sl@0: 	param=p=(unsigned char *)s->init_msg;
sl@0: 
sl@0: 	if (s->session->sess_cert != NULL)
sl@0: 		{
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		if (s->session->sess_cert->peer_rsa_tmp != NULL)
sl@0: 			{
sl@0: 			RSA_free(s->session->sess_cert->peer_rsa_tmp);
sl@0: 			s->session->sess_cert->peer_rsa_tmp=NULL;
sl@0: 			}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 		if (s->session->sess_cert->peer_dh_tmp)
sl@0: 			{
sl@0: 			DH_free(s->session->sess_cert->peer_dh_tmp);
sl@0: 			s->session->sess_cert->peer_dh_tmp=NULL;
sl@0: 			}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 		if (s->session->sess_cert->peer_ecdh_tmp)
sl@0: 			{
sl@0: 			EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
sl@0: 			s->session->sess_cert->peer_ecdh_tmp=NULL;
sl@0: 			}
sl@0: #endif
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		s->session->sess_cert=ssl_sess_cert_new();
sl@0: 		}
sl@0: 
sl@0: 	param_len=0;
sl@0: 	alg=s->s3->tmp.new_cipher->algorithms;
sl@0: 	EVP_MD_CTX_init(&md_ctx);
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	if (alg & SSL_kRSA)
sl@0: 		{
sl@0: 		if ((rsa=RSA_new()) == NULL)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		n2s(p,i);
sl@0: 		param_len=i+2;
sl@0: 		if (param_len > n)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!(rsa->n=BN_bin2bn(p,i,rsa->n)))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p+=i;
sl@0: 
sl@0: 		n2s(p,i);
sl@0: 		param_len+=i+2;
sl@0: 		if (param_len > n)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!(rsa->e=BN_bin2bn(p,i,rsa->e)))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p+=i;
sl@0: 		n-=param_len;
sl@0: 
sl@0: 		/* this should be because we are using an export cipher */
sl@0: 		if (alg & SSL_aRSA)
sl@0: 			pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
sl@0: 		else
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		s->session->sess_cert->peer_rsa_tmp=rsa;
sl@0: 		rsa=NULL;
sl@0: 		}
sl@0: #else /* OPENSSL_NO_RSA */
sl@0: 	if (0)
sl@0: 		;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	else if (alg & SSL_kEDH)
sl@0: 		{
sl@0: 		if ((dh=DH_new()) == NULL)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		n2s(p,i);
sl@0: 		param_len=i+2;
sl@0: 		if (param_len > n)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!(dh->p=BN_bin2bn(p,i,NULL)))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p+=i;
sl@0: 
sl@0: 		n2s(p,i);
sl@0: 		param_len+=i+2;
sl@0: 		if (param_len > n)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!(dh->g=BN_bin2bn(p,i,NULL)))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p+=i;
sl@0: 
sl@0: 		n2s(p,i);
sl@0: 		param_len+=i+2;
sl@0: 		if (param_len > n)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		if (!(dh->pub_key=BN_bin2bn(p,i,NULL)))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p+=i;
sl@0: 		n-=param_len;
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		if (alg & SSL_aRSA)
sl@0: 			pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
sl@0: #else
sl@0: 		if (0)
sl@0: 			;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DSA
sl@0: 		else if (alg & SSL_aDSS)
sl@0: 			pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
sl@0: #endif
sl@0: 		/* else anonymous DH, so no certificate or pkey. */
sl@0: 
sl@0: 		s->session->sess_cert->peer_dh_tmp=dh;
sl@0: 		dh=NULL;
sl@0: 		}
sl@0: 	else if ((alg & SSL_kDHr) || (alg & SSL_kDHd))
sl@0: 		{
sl@0: 		al=SSL_AD_ILLEGAL_PARAMETER;
sl@0: 		SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #endif /* !OPENSSL_NO_DH */
sl@0: 
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	else if (alg & SSL_kECDHE)
sl@0: 		{
sl@0: 		EC_GROUP *ngroup;
sl@0: 		const EC_GROUP *group;
sl@0: 
sl@0: 		if ((ecdh=EC_KEY_new()) == NULL)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 
sl@0: 		/* Extract elliptic curve parameters and the
sl@0: 		 * server's ephemeral ECDH public key.
sl@0: 		 * Keep accumulating lengths of various components in
sl@0: 		 * param_len and make sure it never exceeds n.
sl@0: 		 */
sl@0: 
sl@0: 		/* XXX: For now we only support named (not generic) curves
sl@0: 		 * and the ECParameters in this case is just three bytes.
sl@0: 		 */
sl@0: 		param_len=3;
sl@0: 		if ((param_len > n) ||
sl@0: 		    (*p != NAMED_CURVE_TYPE) || 
sl@0: 		    ((curve_nid = curve_id2nid(*(p + 2))) == 0)) 
sl@0: 			{
sl@0: 			al=SSL_AD_INTERNAL_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 
sl@0: 		ngroup = EC_GROUP_new_by_curve_name(curve_nid);
sl@0: 		if (ngroup == NULL)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (EC_KEY_set_group(ecdh, ngroup) == 0)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		EC_GROUP_free(ngroup);
sl@0: 
sl@0: 		group = EC_KEY_get0_group(ecdh);
sl@0: 
sl@0: 		if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
sl@0: 		    (EC_GROUP_get_degree(group) > 163))
sl@0: 			{
sl@0: 			al=SSL_AD_EXPORT_RESTRICTION;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 
sl@0: 		p+=3;
sl@0: 
sl@0: 		/* Next, get the encoded ECPoint */
sl@0: 		if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
sl@0: 		    ((bn_ctx = BN_CTX_new()) == NULL))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 
sl@0: 		encoded_pt_len = *p;  /* length of encoded point */
sl@0: 		p+=1;
sl@0: 		param_len += (1 + encoded_pt_len);
sl@0: 		if ((param_len > n) ||
sl@0: 		    (EC_POINT_oct2point(group, srvr_ecpoint, 
sl@0: 			p, encoded_pt_len, bn_ctx) == 0))
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 
sl@0: 		n-=param_len;
sl@0: 		p+=encoded_pt_len;
sl@0: 
sl@0: 		/* The ECC/TLS specification does not mention
sl@0: 		 * the use of DSA to sign ECParameters in the server
sl@0: 		 * key exchange message. We do support RSA and ECDSA.
sl@0: 		 */
sl@0: 		if (0) ;
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		else if (alg & SSL_aRSA)
sl@0: 			pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDSA
sl@0: 		else if (alg & SSL_aECDSA)
sl@0: 			pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
sl@0: #endif
sl@0: 		/* else anonymous ECDH, so no certificate or pkey. */
sl@0: 		EC_KEY_set_public_key(ecdh, srvr_ecpoint);
sl@0: 		s->session->sess_cert->peer_ecdh_tmp=ecdh;
sl@0: 		ecdh=NULL;
sl@0: 		BN_CTX_free(bn_ctx);
sl@0: 		EC_POINT_free(srvr_ecpoint);
sl@0: 		srvr_ecpoint = NULL;
sl@0: 		}
sl@0: 	else if (alg & SSL_kECDH)
sl@0: 		{
sl@0: 		al=SSL_AD_UNEXPECTED_MESSAGE;
sl@0: 		SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #endif /* !OPENSSL_NO_ECDH */
sl@0: 	if (alg & SSL_aFZA)
sl@0: 		{
sl@0: 		al=SSL_AD_HANDSHAKE_FAILURE;
sl@0: 		SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 
sl@0: 
sl@0: 	/* p points to the next byte, there are 'n' bytes left */
sl@0: 
sl@0: 	/* if it was signed, check the signature */
sl@0: 	if (pkey != NULL)
sl@0: 		{
sl@0: 		n2s(p,i);
sl@0: 		n-=2;
sl@0: 		j=EVP_PKEY_size(pkey);
sl@0: 
sl@0: 		if ((i != n) || (n > j) || (n <= 0))
sl@0: 			{
sl@0: 			/* wrong packet length */
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		if (pkey->type == EVP_PKEY_RSA)
sl@0: 			{
sl@0: 			int num;
sl@0: 
sl@0: 			j=0;
sl@0: 			q=md_buf;
sl@0: 			for (num=2; num > 0; num--)
sl@0: 				{
sl@0: 				EVP_DigestInit_ex(&md_ctx,(num == 2)
sl@0: 					?s->ctx->md5:s->ctx->sha1, NULL);
sl@0: 				EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
sl@0: 				EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
sl@0: 				EVP_DigestUpdate(&md_ctx,param,param_len);
sl@0: 				EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
sl@0: 				q+=i;
sl@0: 				j+=i;
sl@0: 				}
sl@0: 			i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
sl@0: 								pkey->pkey.rsa);
sl@0: 			if (i < 0)
sl@0: 				{
sl@0: 				al=SSL_AD_DECRYPT_ERROR;
sl@0: 				SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			if (i == 0)
sl@0: 				{
sl@0: 				/* bad signature */
sl@0: 				al=SSL_AD_DECRYPT_ERROR;
sl@0: 				SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DSA
sl@0: 			if (pkey->type == EVP_PKEY_DSA)
sl@0: 			{
sl@0: 			/* lets do DSS */
sl@0: 			EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL);
sl@0: 			EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
sl@0: 			EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
sl@0: 			EVP_VerifyUpdate(&md_ctx,param,param_len);
sl@0: 			if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
sl@0: 				{
sl@0: 				/* bad signature */
sl@0: 				al=SSL_AD_DECRYPT_ERROR;
sl@0: 				SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDSA
sl@0: 			if (pkey->type == EVP_PKEY_EC)
sl@0: 			{
sl@0: 			/* let's do ECDSA */
sl@0: 			EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
sl@0: 			EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
sl@0: 			EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
sl@0: 			EVP_VerifyUpdate(&md_ctx,param,param_len);
sl@0: 			if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
sl@0: 				{
sl@0: 				/* bad signature */
sl@0: 				al=SSL_AD_DECRYPT_ERROR;
sl@0: 				SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		/* still data left over */
sl@0: 		if (!(alg & SSL_aNULL))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (n != 0)
sl@0: 			{
sl@0: 			al=SSL_AD_DECODE_ERROR;
sl@0: 			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		}
sl@0: 	EVP_PKEY_free(pkey);
sl@0: 	EVP_MD_CTX_cleanup(&md_ctx);
sl@0: 	return(1);
sl@0: f_err:
sl@0: 	ssl3_send_alert(s,SSL3_AL_FATAL,al);
sl@0: err:
sl@0: 	EVP_PKEY_free(pkey);
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	if (rsa != NULL)
sl@0: 		RSA_free(rsa);
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	if (dh != NULL)
sl@0: 		DH_free(dh);
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	BN_CTX_free(bn_ctx);
sl@0: 	EC_POINT_free(srvr_ecpoint);
sl@0: 	if (ecdh != NULL)
sl@0: 		EC_KEY_free(ecdh);
sl@0: #endif
sl@0: 	EVP_MD_CTX_cleanup(&md_ctx);
sl@0: 	return(-1);
sl@0: 	}
sl@0: 
sl@0: int ssl3_get_certificate_request(SSL *s)
sl@0: 	{
sl@0: 	int ok,ret=0;
sl@0: 	unsigned long n,nc,l;
sl@0: 	unsigned int llen,ctype_num,i;
sl@0: 	X509_NAME *xn=NULL;
sl@0: 	const unsigned char *p,*q;
sl@0: 	unsigned char *d;
sl@0: 	STACK_OF(X509_NAME) *ca_sk=NULL;
sl@0: 
sl@0: 	n=s->method->ssl_get_message(s,
sl@0: 		SSL3_ST_CR_CERT_REQ_A,
sl@0: 		SSL3_ST_CR_CERT_REQ_B,
sl@0: 		-1,
sl@0: 		s->max_cert_list,
sl@0: 		&ok);
sl@0: 
sl@0: 	if (!ok) return((int)n);
sl@0: 
sl@0: 	s->s3->tmp.cert_req=0;
sl@0: 
sl@0: 	if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)
sl@0: 		{
sl@0: 		s->s3->tmp.reuse_message=1;
sl@0: 		return(1);
sl@0: 		}
sl@0: 
sl@0: 	if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST)
sl@0: 		{
sl@0: 		ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
sl@0: 		SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	/* TLS does not like anon-DH with client cert */
sl@0: 	if (s->version > SSL3_VERSION)
sl@0: 		{
sl@0: 		l=s->s3->tmp.new_cipher->algorithms;
sl@0: 		if (l & SSL_aNULL)
sl@0: 			{
sl@0: 			ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
sl@0: 			SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	p=d=(unsigned char *)s->init_msg;
sl@0: 
sl@0: 	if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	/* get the certificate types */
sl@0: 	ctype_num= *(p++);
sl@0: 	if (ctype_num > SSL3_CT_NUMBER)
sl@0: 		ctype_num=SSL3_CT_NUMBER;
sl@0: 	for (i=0; i<ctype_num; i++)
sl@0: 		s->s3->tmp.ctype[i]= p[i];
sl@0: 	p+=ctype_num;
sl@0: 
sl@0: 	/* get the CA RDNs */
sl@0: 	n2s(p,llen);
sl@0: #if 0
sl@0: {
sl@0: FILE *out;
sl@0: out=fopen("/tmp/vsign.der","w");
sl@0: fwrite(p,1,llen,out);
sl@0: fclose(out);
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 	if ((llen+ctype_num+2+1) != n)
sl@0: 		{
sl@0: 		ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
sl@0: 		SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	for (nc=0; nc<llen; )
sl@0: 		{
sl@0: 		n2s(p,l);
sl@0: 		if ((l+nc+2) > llen)
sl@0: 			{
sl@0: 			if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
sl@0: 				goto cont; /* netscape bugs */
sl@0: 			ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
sl@0: 			SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG);
sl@0: 			goto err;
sl@0: 			}
sl@0: 
sl@0: 		q=p;
sl@0: 
sl@0: 		if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
sl@0: 			{
sl@0: 			/* If netscape tolerance is on, ignore errors */
sl@0: 			if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
sl@0: 				goto cont;
sl@0: 			else
sl@0: 				{
sl@0: 				ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
sl@0: 				SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		if (q != (p+l))
sl@0: 			{
sl@0: 			ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
sl@0: 			SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (!sk_X509_NAME_push(ca_sk,xn))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 
sl@0: 		p+=l;
sl@0: 		nc+=l+2;
sl@0: 		}
sl@0: 
sl@0: 	if (0)
sl@0: 		{
sl@0: cont:
sl@0: 		ERR_clear_error();
sl@0: 		}
sl@0: 
sl@0: 	/* we should setup a certificate to return.... */
sl@0: 	s->s3->tmp.cert_req=1;
sl@0: 	s->s3->tmp.ctype_num=ctype_num;
sl@0: 	if (s->s3->tmp.ca_names != NULL)
sl@0: 		sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
sl@0: 	s->s3->tmp.ca_names=ca_sk;
sl@0: 	ca_sk=NULL;
sl@0: 
sl@0: 	ret=1;
sl@0: err:
sl@0: 	if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free);
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
sl@0: 	{
sl@0: 	return(X509_NAME_cmp(*a,*b));
sl@0: 	}
sl@0: 
sl@0: int ssl3_get_server_done(SSL *s)
sl@0: 	{
sl@0: 	int ok,ret=0;
sl@0: 	long n;
sl@0: 
sl@0: 	n=s->method->ssl_get_message(s,
sl@0: 		SSL3_ST_CR_SRVR_DONE_A,
sl@0: 		SSL3_ST_CR_SRVR_DONE_B,
sl@0: 		SSL3_MT_SERVER_DONE,
sl@0: 		30, /* should be very small, like 0 :-) */
sl@0: 		&ok);
sl@0: 
sl@0: 	if (!ok) return((int)n);
sl@0: 	if (n > 0)
sl@0: 		{
sl@0: 		/* should contain no data */
sl@0: 		ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
sl@0: 		SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
sl@0: 		return -1;
sl@0: 		}
sl@0: 	ret=1;
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: int ssl3_send_client_key_exchange(SSL *s)
sl@0: 	{
sl@0: 	unsigned char *p,*d;
sl@0: 	int n;
sl@0: 	unsigned long l;
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	unsigned char *q;
sl@0: 	EVP_PKEY *pkey=NULL;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_KRB5
sl@0: 	KSSL_ERR kssl_err;
sl@0: #endif /* OPENSSL_NO_KRB5 */
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	EC_KEY *clnt_ecdh = NULL;
sl@0: 	const EC_POINT *srvr_ecpoint = NULL;
sl@0: 	EVP_PKEY *srvr_pub_pkey = NULL;
sl@0: 	unsigned char *encodedPoint = NULL;
sl@0: 	int encoded_pt_len = 0;
sl@0: 	BN_CTX * bn_ctx = NULL;
sl@0: #endif
sl@0: 
sl@0: 	if (s->state == SSL3_ST_CW_KEY_EXCH_A)
sl@0: 		{
sl@0: 		d=(unsigned char *)s->init_buf->data;
sl@0: 		p= &(d[4]);
sl@0: 
sl@0: 		l=s->s3->tmp.new_cipher->algorithms;
sl@0: 
sl@0: 		/* Fool emacs indentation */
sl@0: 		if (0) {}
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		else if (l & SSL_kRSA)
sl@0: 			{
sl@0: 			RSA *rsa;
sl@0: 			unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
sl@0: 
sl@0: 			if (s->session->sess_cert->peer_rsa_tmp != NULL)
sl@0: 				rsa=s->session->sess_cert->peer_rsa_tmp;
sl@0: 			else
sl@0: 				{
sl@0: 				pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
sl@0: 				if ((pkey == NULL) ||
sl@0: 					(pkey->type != EVP_PKEY_RSA) ||
sl@0: 					(pkey->pkey.rsa == NULL))
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				rsa=pkey->pkey.rsa;
sl@0: 				EVP_PKEY_free(pkey);
sl@0: 				}
sl@0: 				
sl@0: 			tmp_buf[0]=s->client_version>>8;
sl@0: 			tmp_buf[1]=s->client_version&0xff;
sl@0: 			if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
sl@0: 					goto err;
sl@0: 
sl@0: 			s->session->master_key_length=sizeof tmp_buf;
sl@0: 
sl@0: 			q=p;
sl@0: 			/* Fix buf for TLS and beyond */
sl@0: 			if (s->version > SSL3_VERSION)
sl@0: 				p+=2;
sl@0: 			n=RSA_public_encrypt(sizeof tmp_buf,
sl@0: 				tmp_buf,p,rsa,RSA_PKCS1_PADDING);
sl@0: #ifdef PKCS1_CHECK
sl@0: 			if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
sl@0: 			if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70;
sl@0: #endif
sl@0: 			if (n <= 0)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			/* Fix buf for TLS and beyond */
sl@0: 			if (s->version > SSL3_VERSION)
sl@0: 				{
sl@0: 				s2n(n,q);
sl@0: 				n+=2;
sl@0: 				}
sl@0: 
sl@0: 			s->session->master_key_length=
sl@0: 				s->method->ssl3_enc->generate_master_secret(s,
sl@0: 					s->session->master_key,
sl@0: 					tmp_buf,sizeof tmp_buf);
sl@0: 			OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
sl@0: 			}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_KRB5
sl@0: 		else if (l & SSL_kKRB5)
sl@0: 			{
sl@0: 			krb5_error_code	krb5rc;
sl@0: 			KSSL_CTX	*kssl_ctx = s->kssl_ctx;
sl@0: 			/*  krb5_data	krb5_ap_req;  */
sl@0: 			krb5_data	*enc_ticket;
sl@0: 			krb5_data	authenticator, *authp = NULL;
sl@0: 			EVP_CIPHER_CTX	ciph_ctx;
sl@0: 			EVP_CIPHER	*enc = NULL;
sl@0: 			unsigned char	iv[EVP_MAX_IV_LENGTH];
sl@0: 			unsigned char	tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
sl@0: 			unsigned char	epms[SSL_MAX_MASTER_KEY_LENGTH 
sl@0: 						+ EVP_MAX_IV_LENGTH];
sl@0: 			int 		padl, outl = sizeof(epms);
sl@0: 
sl@0: 			EVP_CIPHER_CTX_init(&ciph_ctx);
sl@0: 
sl@0: #ifdef KSSL_DEBUG
sl@0: 			printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
sl@0: 			        l, SSL_kKRB5);
sl@0: #endif	/* KSSL_DEBUG */
sl@0: 
sl@0: 			authp = NULL;
sl@0: #ifdef KRB5SENDAUTH
sl@0: 			if (KRB5SENDAUTH)  authp = &authenticator;
sl@0: #endif	/* KRB5SENDAUTH */
sl@0: 
sl@0: 			krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
sl@0: 				&kssl_err);
sl@0: 			enc = kssl_map_enc(kssl_ctx->enctype);
sl@0: 			if (enc == NULL)
sl@0: 			    goto err;
sl@0: #ifdef KSSL_DEBUG
sl@0: 			{
sl@0: 			printf("kssl_cget_tkt rtn %d\n", krb5rc);
sl@0: 			if (krb5rc && kssl_err.text)
sl@0: 			  printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
sl@0: 			}
sl@0: #endif	/* KSSL_DEBUG */
sl@0: 
sl@0: 			if (krb5rc)
sl@0: 				{
sl@0: 				ssl3_send_alert(s,SSL3_AL_FATAL,
sl@0: 						SSL_AD_HANDSHAKE_FAILURE);
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
sl@0: 						kssl_err.reason);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			/*  20010406 VRS - Earlier versions used KRB5 AP_REQ
sl@0: 			**  in place of RFC 2712 KerberosWrapper, as in:
sl@0: 			**
sl@0: 			**  Send ticket (copy to *p, set n = length)
sl@0: 			**  n = krb5_ap_req.length;
sl@0: 			**  memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
sl@0: 			**  if (krb5_ap_req.data)  
sl@0: 			**    kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
sl@0: 			**
sl@0: 			**  Now using real RFC 2712 KerberosWrapper
sl@0: 			**  (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
sl@0: 			**  Note: 2712 "opaque" types are here replaced
sl@0: 			**  with a 2-byte length followed by the value.
sl@0: 			**  Example:
sl@0: 			**  KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
sl@0: 			**  Where "xx xx" = length bytes.  Shown here with
sl@0: 			**  optional authenticator omitted.
sl@0: 			*/
sl@0: 
sl@0: 			/*  KerberosWrapper.Ticket		*/
sl@0: 			s2n(enc_ticket->length,p);
sl@0: 			memcpy(p, enc_ticket->data, enc_ticket->length);
sl@0: 			p+= enc_ticket->length;
sl@0: 			n = enc_ticket->length + 2;
sl@0: 
sl@0: 			/*  KerberosWrapper.Authenticator	*/
sl@0: 			if (authp  &&  authp->length)  
sl@0: 				{
sl@0: 				s2n(authp->length,p);
sl@0: 				memcpy(p, authp->data, authp->length);
sl@0: 				p+= authp->length;
sl@0: 				n+= authp->length + 2;
sl@0: 				
sl@0: 				free(authp->data);
sl@0: 				authp->data = NULL;
sl@0: 				authp->length = 0;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				s2n(0,p);/*  null authenticator length	*/
sl@0: 				n+=2;
sl@0: 				}
sl@0:  
sl@0: 			    tmp_buf[0]=s->client_version>>8;
sl@0: 			    tmp_buf[1]=s->client_version&0xff;
sl@0: 			    if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
sl@0: 				goto err;
sl@0: 
sl@0: 			/*  20010420 VRS.  Tried it this way; failed.
sl@0: 			**	EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
sl@0: 			**	EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
sl@0: 			**				kssl_ctx->length);
sl@0: 			**	EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
sl@0: 			*/
sl@0: 
sl@0: 			memset(iv, 0, sizeof iv);  /* per RFC 1510 */
sl@0: 			EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
sl@0: 				kssl_ctx->key,iv);
sl@0: 			EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
sl@0: 				sizeof tmp_buf);
sl@0: 			EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
sl@0: 			outl += padl;
sl@0: 			if (outl > sizeof epms)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			EVP_CIPHER_CTX_cleanup(&ciph_ctx);
sl@0: 
sl@0: 			/*  KerberosWrapper.EncryptedPreMasterSecret	*/
sl@0: 			s2n(outl,p);
sl@0: 			memcpy(p, epms, outl);
sl@0: 			p+=outl;
sl@0: 			n+=outl + 2;
sl@0: 
sl@0: 			s->session->master_key_length=
sl@0: 			        s->method->ssl3_enc->generate_master_secret(s,
sl@0: 					s->session->master_key,
sl@0: 					tmp_buf, sizeof tmp_buf);
sl@0: 
sl@0: 			OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
sl@0: 			OPENSSL_cleanse(epms, outl);
sl@0: 			}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 		else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
sl@0: 			{
sl@0: 			DH *dh_srvr,*dh_clnt;
sl@0: 
sl@0: 			if (s->session->sess_cert->peer_dh_tmp != NULL)
sl@0: 				dh_srvr=s->session->sess_cert->peer_dh_tmp;
sl@0: 			else
sl@0: 				{
sl@0: 				/* we get them from the cert */
sl@0: 				ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			
sl@0: 			/* generate a new random key */
sl@0: 			if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			if (!DH_generate_key(dh_clnt))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			/* use the 'p' output buffer for the DH key, but
sl@0: 			 * make sure to clear it out afterwards */
sl@0: 
sl@0: 			n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt);
sl@0: 
sl@0: 			if (n <= 0)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			/* generate master key from the result */
sl@0: 			s->session->master_key_length=
sl@0: 				s->method->ssl3_enc->generate_master_secret(s,
sl@0: 					s->session->master_key,p,n);
sl@0: 			/* clean up */
sl@0: 			memset(p,0,n);
sl@0: 
sl@0: 			/* send off the data */
sl@0: 			n=BN_num_bytes(dh_clnt->pub_key);
sl@0: 			s2n(n,p);
sl@0: 			BN_bn2bin(dh_clnt->pub_key,p);
sl@0: 			n+=2;
sl@0: 
sl@0: 			DH_free(dh_clnt);
sl@0: 
sl@0: 			/* perhaps clean things up a bit EAY EAY EAY EAY*/
sl@0: 			}
sl@0: #endif
sl@0: 
sl@0: #ifndef OPENSSL_NO_ECDH 
sl@0: 		else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
sl@0: 			{
sl@0: 			const EC_GROUP *srvr_group = NULL;
sl@0: 			EC_KEY *tkey;
sl@0: 			int ecdh_clnt_cert = 0;
sl@0: 			int field_size = 0;
sl@0: 
sl@0: 			/* Did we send out the client's
sl@0: 			 * ECDH share for use in premaster
sl@0: 			 * computation as part of client certificate?
sl@0: 			 * If so, set ecdh_clnt_cert to 1.
sl@0: 			 */
sl@0: 			if ((l & SSL_kECDH) && (s->cert != NULL)) 
sl@0: 				{
sl@0: 				/* XXX: For now, we do not support client
sl@0: 				 * authentication using ECDH certificates.
sl@0: 				 * To add such support, one needs to add
sl@0: 				 * code that checks for appropriate 
sl@0: 				 * conditions and sets ecdh_clnt_cert to 1.
sl@0: 				 * For example, the cert have an ECC
sl@0: 				 * key on the same curve as the server's
sl@0: 				 * and the key should be authorized for
sl@0: 				 * key agreement.
sl@0: 				 *
sl@0: 				 * One also needs to add code in ssl3_connect
sl@0: 				 * to skip sending the certificate verify
sl@0: 				 * message.
sl@0: 				 *
sl@0: 				 * if ((s->cert->key->privatekey != NULL) &&
sl@0: 				 *     (s->cert->key->privatekey->type ==
sl@0: 				 *      EVP_PKEY_EC) && ...)
sl@0: 				 * ecdh_clnt_cert = 1;
sl@0: 				 */
sl@0: 				}
sl@0: 
sl@0: 			if (s->session->sess_cert->peer_ecdh_tmp != NULL)
sl@0: 				{
sl@0: 				tkey = s->session->sess_cert->peer_ecdh_tmp;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				/* Get the Server Public Key from Cert */
sl@0: 				srvr_pub_pkey = X509_get_pubkey(s->session-> \
sl@0: 				    sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
sl@0: 				if ((srvr_pub_pkey == NULL) ||
sl@0: 				    (srvr_pub_pkey->type != EVP_PKEY_EC) ||
sl@0: 				    (srvr_pub_pkey->pkey.ec == NULL))
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
sl@0: 					    ERR_R_INTERNAL_ERROR);
sl@0: 					goto err;
sl@0: 					}
sl@0: 
sl@0: 				tkey = srvr_pub_pkey->pkey.ec;
sl@0: 				}
sl@0: 
sl@0: 			srvr_group   = EC_KEY_get0_group(tkey);
sl@0: 			srvr_ecpoint = EC_KEY_get0_public_key(tkey);
sl@0: 
sl@0: 			if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
sl@0: 				    ERR_R_INTERNAL_ERROR);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			if ((clnt_ecdh=EC_KEY_new()) == NULL) 
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			if (ecdh_clnt_cert) 
sl@0: 				{ 
sl@0: 				/* Reuse key info from our certificate
sl@0: 				 * We only need our private key to perform
sl@0: 				 * the ECDH computation.
sl@0: 				 */
sl@0: 				const BIGNUM *priv_key;
sl@0: 				tkey = s->cert->key->privatekey->pkey.ec;
sl@0: 				priv_key = EC_KEY_get0_private_key(tkey);
sl@0: 				if (priv_key == NULL)
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				/* Generate a new ECDH key pair */
sl@0: 				if (!(EC_KEY_generate_key(clnt_ecdh)))
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				}
sl@0: 
sl@0: 			/* use the 'p' output buffer for the ECDH key, but
sl@0: 			 * make sure to clear it out afterwards
sl@0: 			 */
sl@0: 
sl@0: 			field_size = EC_GROUP_get_degree(srvr_group);
sl@0: 			if (field_size <= 0)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, 
sl@0: 				       ERR_R_ECDH_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
sl@0: 			if (n <= 0)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, 
sl@0: 				       ERR_R_ECDH_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 
sl@0: 			/* generate master key from the result */
sl@0: 			s->session->master_key_length = s->method->ssl3_enc \
sl@0: 			    -> generate_master_secret(s, 
sl@0: 				s->session->master_key,
sl@0: 				p, n);
sl@0: 
sl@0: 			memset(p, 0, n); /* clean up */
sl@0: 
sl@0: 			if (ecdh_clnt_cert) 
sl@0: 				{
sl@0: 				/* Send empty client key exch message */
sl@0: 				n = 0;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				/* First check the size of encoding and
sl@0: 				 * allocate memory accordingly.
sl@0: 				 */
sl@0: 				encoded_pt_len = 
sl@0: 				    EC_POINT_point2oct(srvr_group, 
sl@0: 					EC_KEY_get0_public_key(clnt_ecdh), 
sl@0: 					POINT_CONVERSION_UNCOMPRESSED, 
sl@0: 					NULL, 0, NULL);
sl@0: 
sl@0: 				encodedPoint = (unsigned char *) 
sl@0: 				    OPENSSL_malloc(encoded_pt_len * 
sl@0: 					sizeof(unsigned char)); 
sl@0: 				bn_ctx = BN_CTX_new();
sl@0: 				if ((encodedPoint == NULL) || 
sl@0: 				    (bn_ctx == NULL)) 
sl@0: 					{
sl@0: 					SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
sl@0: 					goto err;
sl@0: 					}
sl@0: 
sl@0: 				/* Encode the public key */
sl@0: 				n = EC_POINT_point2oct(srvr_group, 
sl@0: 				    EC_KEY_get0_public_key(clnt_ecdh), 
sl@0: 				    POINT_CONVERSION_UNCOMPRESSED, 
sl@0: 				    encodedPoint, encoded_pt_len, bn_ctx);
sl@0: 
sl@0: 				*p = n; /* length of encoded point */
sl@0: 				/* Encoded point will be copied here */
sl@0: 				p += 1; 
sl@0: 				/* copy the point */
sl@0: 				memcpy((unsigned char *)p, encodedPoint, n);
sl@0: 				/* increment n to account for length field */
sl@0: 				n += 1; 
sl@0: 				}
sl@0: 
sl@0: 			/* Free allocated memory */
sl@0: 			BN_CTX_free(bn_ctx);
sl@0: 			if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
sl@0: 			if (clnt_ecdh != NULL) 
sl@0: 				 EC_KEY_free(clnt_ecdh);
sl@0: 			EVP_PKEY_free(srvr_pub_pkey);
sl@0: 			}
sl@0: #endif /* !OPENSSL_NO_ECDH */
sl@0: 		else
sl@0: 			{
sl@0: 			ssl3_send_alert(s, SSL3_AL_FATAL,
sl@0: 			    SSL_AD_HANDSHAKE_FAILURE);
sl@0: 			SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
sl@0: 			    ERR_R_INTERNAL_ERROR);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		
sl@0: 		*(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE;
sl@0: 		l2n3(n,d);
sl@0: 
sl@0: 		s->state=SSL3_ST_CW_KEY_EXCH_B;
sl@0: 		/* number of bytes to write */
sl@0: 		s->init_num=n+4;
sl@0: 		s->init_off=0;
sl@0: 		}
sl@0: 
sl@0: 	/* SSL3_ST_CW_KEY_EXCH_B */
sl@0: 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
sl@0: err:
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	BN_CTX_free(bn_ctx);
sl@0: 	if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
sl@0: 	if (clnt_ecdh != NULL) 
sl@0: 		EC_KEY_free(clnt_ecdh);
sl@0: 	EVP_PKEY_free(srvr_pub_pkey);
sl@0: #endif
sl@0: 	return(-1);
sl@0: 	}
sl@0: 
sl@0: int ssl3_send_client_verify(SSL *s)
sl@0: 	{
sl@0: 	unsigned char *p,*d;
sl@0: 	unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
sl@0: 	EVP_PKEY *pkey;
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	unsigned u=0;
sl@0: #endif
sl@0: 	unsigned long n;
sl@0: #if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
sl@0: 	int j;
sl@0: #endif
sl@0: 
sl@0: 	if (s->state == SSL3_ST_CW_CERT_VRFY_A)
sl@0: 		{
sl@0: 		d=(unsigned char *)s->init_buf->data;
sl@0: 		p= &(d[4]);
sl@0: 		pkey=s->cert->key->privatekey;
sl@0: 
sl@0: 		s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
sl@0: 			&(data[MD5_DIGEST_LENGTH]));
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		if (pkey->type == EVP_PKEY_RSA)
sl@0: 			{
sl@0: 			s->method->ssl3_enc->cert_verify_mac(s,
sl@0: 				&(s->s3->finish_dgst1),&(data[0]));
sl@0: 			if (RSA_sign(NID_md5_sha1, data,
sl@0: 					 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
sl@0: 					&(p[2]), &u, pkey->pkey.rsa) <= 0 )
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			s2n(u,p);
sl@0: 			n=u+2;
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DSA
sl@0: 			if (pkey->type == EVP_PKEY_DSA)
sl@0: 			{
sl@0: 			if (!DSA_sign(pkey->save_type,
sl@0: 				&(data[MD5_DIGEST_LENGTH]),
sl@0: 				SHA_DIGEST_LENGTH,&(p[2]),
sl@0: 				(unsigned int *)&j,pkey->pkey.dsa))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			s2n(j,p);
sl@0: 			n=j+2;
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_ECDSA
sl@0: 			if (pkey->type == EVP_PKEY_EC)
sl@0: 			{
sl@0: 			if (!ECDSA_sign(pkey->save_type,
sl@0: 				&(data[MD5_DIGEST_LENGTH]),
sl@0: 				SHA_DIGEST_LENGTH,&(p[2]),
sl@0: 				(unsigned int *)&j,pkey->pkey.ec))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
sl@0: 				    ERR_R_ECDSA_LIB);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			s2n(j,p);
sl@0: 			n=j+2;
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		*(d++)=SSL3_MT_CERTIFICATE_VERIFY;
sl@0: 		l2n3(n,d);
sl@0: 
sl@0: 		s->state=SSL3_ST_CW_CERT_VRFY_B;
sl@0: 		s->init_num=(int)n+4;
sl@0: 		s->init_off=0;
sl@0: 		}
sl@0: 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
sl@0: err:
sl@0: 	return(-1);
sl@0: 	}
sl@0: 
sl@0: int ssl3_send_client_certificate(SSL *s)
sl@0: 	{
sl@0: 	X509 *x509=NULL;
sl@0: 	EVP_PKEY *pkey=NULL;
sl@0: 	int i;
sl@0: 	unsigned long l;
sl@0: 
sl@0: 	if (s->state ==	SSL3_ST_CW_CERT_A)
sl@0: 		{
sl@0: 		if ((s->cert == NULL) ||
sl@0: 			(s->cert->key->x509 == NULL) ||
sl@0: 			(s->cert->key->privatekey == NULL))
sl@0: 			s->state=SSL3_ST_CW_CERT_B;
sl@0: 		else
sl@0: 			s->state=SSL3_ST_CW_CERT_C;
sl@0: 		}
sl@0: 
sl@0: 	/* We need to get a client cert */
sl@0: 	if (s->state == SSL3_ST_CW_CERT_B)
sl@0: 		{
sl@0: 		/* If we get an error, we need to
sl@0: 		 * ssl->rwstate=SSL_X509_LOOKUP; return(-1);
sl@0: 		 * We then get retied later */
sl@0: 		i=0;
sl@0: 		if (s->ctx->client_cert_cb != NULL)
sl@0: 			i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
sl@0: 		if (i < 0)
sl@0: 			{
sl@0: 			s->rwstate=SSL_X509_LOOKUP;
sl@0: 			return(-1);
sl@0: 			}
sl@0: 		s->rwstate=SSL_NOTHING;
sl@0: 		if ((i == 1) && (pkey != NULL) && (x509 != NULL))
sl@0: 			{
sl@0: 			s->state=SSL3_ST_CW_CERT_B;
sl@0: 			if (	!SSL_use_certificate(s,x509) ||
sl@0: 				!SSL_use_PrivateKey(s,pkey))
sl@0: 				i=0;
sl@0: 			}
sl@0: 		else if (i == 1)
sl@0: 			{
sl@0: 			i=0;
sl@0: 			SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
sl@0: 			}
sl@0: 
sl@0: 		if (x509 != NULL) X509_free(x509);
sl@0: 		if (pkey != NULL) EVP_PKEY_free(pkey);
sl@0: 		if (i == 0)
sl@0: 			{
sl@0: 			if (s->version == SSL3_VERSION)
sl@0: 				{
sl@0: 				s->s3->tmp.cert_req=0;
sl@0: 				ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE);
sl@0: 				return(1);
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				s->s3->tmp.cert_req=2;
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		/* Ok, we have a cert */
sl@0: 		s->state=SSL3_ST_CW_CERT_C;
sl@0: 		}
sl@0: 
sl@0: 	if (s->state == SSL3_ST_CW_CERT_C)
sl@0: 		{
sl@0: 		s->state=SSL3_ST_CW_CERT_D;
sl@0: 		l=ssl3_output_cert_chain(s,
sl@0: 			(s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509);
sl@0: 		s->init_num=(int)l;
sl@0: 		s->init_off=0;
sl@0: 		}
sl@0: 	/* SSL3_ST_CW_CERT_D */
sl@0: 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
sl@0: 	}
sl@0: 
sl@0: #define has_bits(i,m)	(((i)&(m)) == (m))
sl@0: 
sl@0: int ssl3_check_cert_and_algorithm(SSL *s)
sl@0: 	{
sl@0: 	int i,idx;
sl@0: 	long algs;
sl@0: 	EVP_PKEY *pkey=NULL;
sl@0: 	SESS_CERT *sc;
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	RSA *rsa;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	DH *dh;
sl@0: #endif
sl@0: 
sl@0: 	sc=s->session->sess_cert;
sl@0: 
sl@0: 	algs=s->s3->tmp.new_cipher->algorithms;
sl@0: 
sl@0: 	/* we don't have a certificate */
sl@0: 	if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
sl@0: 		return(1);
sl@0: 
sl@0: 	if (sc == NULL)
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	rsa=s->session->sess_cert->peer_rsa_tmp;
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	dh=s->session->sess_cert->peer_dh_tmp;
sl@0: #endif
sl@0: 
sl@0: 	/* This is the passed certificate */
sl@0: 
sl@0: 	idx=sc->peer_cert_type;
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: 	if (idx == SSL_PKEY_ECC)
sl@0: 		{
sl@0: 		if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
sl@0: 		    s->s3->tmp.new_cipher) == 0) 
sl@0: 			{ /* check failed */
sl@0: 			SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
sl@0: 			goto f_err;			
sl@0: 			}
sl@0: 		else 
sl@0: 			{
sl@0: 			return 1;
sl@0: 			}
sl@0: 		}
sl@0: #endif
sl@0: 	pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
sl@0: 	i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
sl@0: 	EVP_PKEY_free(pkey);
sl@0: 
sl@0: 	
sl@0: 	/* Check that we have a certificate if we require one */
sl@0: 	if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #ifndef OPENSSL_NO_DSA
sl@0: 	else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 	if ((algs & SSL_kRSA) &&
sl@0: 		!(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 	if ((algs & SSL_kEDH) &&
sl@0: 		!(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: 	else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #ifndef OPENSSL_NO_DSA
sl@0: 	else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
sl@0: 		goto f_err;
sl@0: 		}
sl@0: #endif
sl@0: #endif
sl@0: 
sl@0: 	if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
sl@0: 		{
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 		if (algs & SSL_kRSA)
sl@0: 			{
sl@0: 			if (rsa == NULL
sl@0: 			    || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DH
sl@0: 			if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
sl@0: 			    {
sl@0: 			    if (dh == NULL
sl@0: 				|| DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
sl@0: 				goto f_err;
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: #endif
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
sl@0: 			goto f_err;
sl@0: 			}
sl@0: 		}
sl@0: 	return(1);
sl@0: f_err:
sl@0: 	ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
sl@0: err:
sl@0: 	return(0);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: #ifndef OPENSSL_NO_ECDH
sl@0: /* This is the complement of nid2curve_id in s3_srvr.c. */
sl@0: static int curve_id2nid(int curve_id)
sl@0: {
sl@0: 	/* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
sl@0: 	 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
sl@0: 	static int nid_list[26] =
sl@0: 	{
sl@0: 		0,
sl@0: 		NID_sect163k1, /* sect163k1 (1) */
sl@0: 		NID_sect163r1, /* sect163r1 (2) */
sl@0: 		NID_sect163r2, /* sect163r2 (3) */
sl@0: 		NID_sect193r1, /* sect193r1 (4) */ 
sl@0: 		NID_sect193r2, /* sect193r2 (5) */ 
sl@0: 		NID_sect233k1, /* sect233k1 (6) */
sl@0: 		NID_sect233r1, /* sect233r1 (7) */ 
sl@0: 		NID_sect239k1, /* sect239k1 (8) */ 
sl@0: 		NID_sect283k1, /* sect283k1 (9) */
sl@0: 		NID_sect283r1, /* sect283r1 (10) */ 
sl@0: 		NID_sect409k1, /* sect409k1 (11) */ 
sl@0: 		NID_sect409r1, /* sect409r1 (12) */
sl@0: 		NID_sect571k1, /* sect571k1 (13) */ 
sl@0: 		NID_sect571r1, /* sect571r1 (14) */ 
sl@0: 		NID_secp160k1, /* secp160k1 (15) */
sl@0: 		NID_secp160r1, /* secp160r1 (16) */ 
sl@0: 		NID_secp160r2, /* secp160r2 (17) */ 
sl@0: 		NID_secp192k1, /* secp192k1 (18) */
sl@0: 		NID_X9_62_prime192v1, /* secp192r1 (19) */ 
sl@0: 		NID_secp224k1, /* secp224k1 (20) */ 
sl@0: 		NID_secp224r1, /* secp224r1 (21) */
sl@0: 		NID_secp256k1, /* secp256k1 (22) */ 
sl@0: 		NID_X9_62_prime256v1, /* secp256r1 (23) */ 
sl@0: 		NID_secp384r1, /* secp384r1 (24) */
sl@0: 		NID_secp521r1  /* secp521r1 (25) */	
sl@0: 	};
sl@0: 	
sl@0: 	if ((curve_id < 1) || (curve_id > 25)) return 0;
sl@0: 
sl@0: 	return nid_list[curve_id];
sl@0: }
sl@0: #endif
sl@0: 
sl@0: