433 lines
11 KiB
C
433 lines
11 KiB
C
/*
|
|
* SSL server demonstration program
|
|
*
|
|
* Copyright (C) 2006-2010, Brainspark B.V.
|
|
*
|
|
* This file is part of PolarSSL (http://www.polarssl.org)
|
|
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef _CRT_SECURE_NO_DEPRECATE
|
|
#define _CRT_SECURE_NO_DEPRECATE 1
|
|
#endif
|
|
|
|
#ifdef WIN32
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#include "polarssl/config.h"
|
|
|
|
#include "polarssl/havege.h"
|
|
#include "polarssl/certs.h"
|
|
#include "polarssl/x509.h"
|
|
#include "polarssl/ssl.h"
|
|
#include "polarssl/net.h"
|
|
|
|
#define HTTP_RESPONSE \
|
|
"HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
|
|
"<h2>PolarSSL Test Server</h2>\r\n" \
|
|
"<p>Successful connection using: %s</p>\r\n"
|
|
|
|
/*
|
|
* Computing a "safe" DH-1024 prime can take a very
|
|
* long time, so a precomputed value is provided below.
|
|
* You may run dh_genprime to generate a new value.
|
|
*/
|
|
char *my_dhm_P =
|
|
"E4004C1F94182000103D883A448B3F80" \
|
|
"2CE4B44A83301270002C20D0321CFD00" \
|
|
"11CCEF784C26A400F43DFB901BCA7538" \
|
|
"F2C6B176001CF5A0FD16D2C48B1D0C1C" \
|
|
"F6AC8E1DA6BCC3B4E1F96B0564965300" \
|
|
"FFA1D0B601EB2800F489AA512C4B248C" \
|
|
"01F76949A60BB7F00A40B1EAB64BDD48" \
|
|
"E8A700D60B7F1200FA8E77B0A979DABF";
|
|
|
|
char *my_dhm_G = "4";
|
|
|
|
/*
|
|
* Sorted by order of preference
|
|
*/
|
|
int my_ciphersuites[] =
|
|
{
|
|
SSL_EDH_RSA_AES_256_SHA,
|
|
SSL_EDH_RSA_CAMELLIA_256_SHA,
|
|
SSL_EDH_RSA_AES_128_SHA,
|
|
SSL_EDH_RSA_CAMELLIA_128_SHA,
|
|
SSL_EDH_RSA_DES_168_SHA,
|
|
SSL_RSA_AES_256_SHA,
|
|
SSL_RSA_CAMELLIA_256_SHA,
|
|
SSL_RSA_AES_128_SHA,
|
|
SSL_RSA_CAMELLIA_128_SHA,
|
|
SSL_RSA_DES_168_SHA,
|
|
SSL_RSA_RC4_128_SHA,
|
|
SSL_RSA_RC4_128_MD5,
|
|
0
|
|
};
|
|
|
|
#define DEBUG_LEVEL 0
|
|
|
|
void my_debug( void *ctx, int level, const char *str )
|
|
{
|
|
if( level < DEBUG_LEVEL )
|
|
{
|
|
fprintf( (FILE *) ctx, "%s", str );
|
|
fflush( (FILE *) ctx );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* These session callbacks use a simple chained list
|
|
* to store and retrieve the session information.
|
|
*/
|
|
ssl_session *s_list_1st = NULL;
|
|
ssl_session *cur, *prv;
|
|
|
|
static int my_get_session( ssl_context *ssl )
|
|
{
|
|
time_t t = time( NULL );
|
|
|
|
if( ssl->resume == 0 )
|
|
return( 1 );
|
|
|
|
cur = s_list_1st;
|
|
prv = NULL;
|
|
|
|
while( cur != NULL )
|
|
{
|
|
prv = cur;
|
|
cur = cur->next;
|
|
|
|
if( ssl->timeout != 0 && t - prv->start > ssl->timeout )
|
|
continue;
|
|
|
|
if( ssl->session->ciphersuite != prv->ciphersuite ||
|
|
ssl->session->length != prv->length )
|
|
continue;
|
|
|
|
if( memcmp( ssl->session->id, prv->id, prv->length ) != 0 )
|
|
continue;
|
|
|
|
memcpy( ssl->session->master, prv->master, 48 );
|
|
return( 0 );
|
|
}
|
|
|
|
return( 1 );
|
|
}
|
|
|
|
static int my_set_session( ssl_context *ssl )
|
|
{
|
|
time_t t = time( NULL );
|
|
|
|
cur = s_list_1st;
|
|
prv = NULL;
|
|
|
|
while( cur != NULL )
|
|
{
|
|
if( ssl->timeout != 0 && t - cur->start > ssl->timeout )
|
|
break; /* expired, reuse this slot */
|
|
|
|
if( memcmp( ssl->session->id, cur->id, cur->length ) == 0 )
|
|
break; /* client reconnected */
|
|
|
|
prv = cur;
|
|
cur = cur->next;
|
|
}
|
|
|
|
if( cur == NULL )
|
|
{
|
|
cur = (ssl_session *) malloc( sizeof( ssl_session ) );
|
|
if( cur == NULL )
|
|
return( 1 );
|
|
|
|
if( prv == NULL )
|
|
s_list_1st = cur;
|
|
else prv->next = cur;
|
|
}
|
|
|
|
memcpy( cur, ssl->session, sizeof( ssl_session ) );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_CERTS_C) || \
|
|
!defined(POLARSSL_HAVEGE_C) || !defined(POLARSSL_SSL_TLS_C) || \
|
|
!defined(POLARSSL_SSL_SRV_C) || !defined(POLARSSL_NET_C) || \
|
|
!defined(POLARSSL_RSA_C)
|
|
int main( void )
|
|
{
|
|
printf("POLARSSL_BIGNUM_C and/or POLARSSL_CERTS_C and/or POLARSSL_HAVEGE_C "
|
|
"and/or POLARSSL_SSL_TLS_C and/or POLARSSL_SSL_SRV_C and/or "
|
|
"POLARSSL_NET_C and/or POLARSSL_RSA_C not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
int main( void )
|
|
{
|
|
int ret, len;
|
|
int listen_fd;
|
|
int client_fd = -1;
|
|
unsigned char buf[1024];
|
|
|
|
havege_state hs;
|
|
ssl_context ssl;
|
|
ssl_session ssn;
|
|
x509_cert srvcert;
|
|
rsa_context rsa;
|
|
|
|
/*
|
|
* 1. Load the certificates and private RSA key
|
|
*/
|
|
printf( "\n . Loading the server cert. and key..." );
|
|
fflush( stdout );
|
|
|
|
memset( &srvcert, 0, sizeof( x509_cert ) );
|
|
|
|
/*
|
|
* This demonstration program uses embedded test certificates.
|
|
* Instead, you may want to use x509parse_crtfile() to read the
|
|
* server and CA certificates, as well as x509parse_keyfile().
|
|
*/
|
|
ret = x509parse_crt( &srvcert, (unsigned char *) test_srv_crt,
|
|
strlen( test_srv_crt ) );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! x509parse_crt returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
ret = x509parse_crt( &srvcert, (unsigned char *) test_ca_crt,
|
|
strlen( test_ca_crt ) );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! x509parse_crt returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
rsa_init( &rsa, RSA_PKCS_V15, 0 );
|
|
ret = x509parse_key( &rsa, (unsigned char *) test_srv_key,
|
|
strlen( test_srv_key ), NULL, 0 );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! x509parse_key returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 2. Setup the listening TCP socket
|
|
*/
|
|
printf( " . Bind on https://localhost:4433/ ..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! net_bind returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 4. Setup stuff
|
|
*/
|
|
printf( " . Setting up the RNG and SSL data...." );
|
|
fflush( stdout );
|
|
|
|
memset( &ssl, 0, sizeof( ssl ) );
|
|
havege_init( &hs );
|
|
|
|
if( ( ret = ssl_init( &ssl ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_init returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
ssl_set_endpoint( &ssl, SSL_IS_SERVER );
|
|
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
|
|
|
|
ssl_set_rng( &ssl, havege_rand, &hs );
|
|
ssl_set_dbg( &ssl, my_debug, stdout );
|
|
|
|
ssl_set_scb( &ssl, my_get_session,
|
|
my_set_session );
|
|
|
|
ssl_set_ciphersuites( &ssl, my_ciphersuites );
|
|
ssl_set_session( &ssl, 1, 0, &ssn );
|
|
|
|
memset( &ssn, 0, sizeof( ssl_session ) );
|
|
|
|
ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
|
|
ssl_set_own_cert( &ssl, &srvcert, &rsa );
|
|
ssl_set_dh_param( &ssl, my_dhm_P, my_dhm_G );
|
|
|
|
printf( " ok\n" );
|
|
|
|
reset:
|
|
if( client_fd != -1 )
|
|
net_close( client_fd );
|
|
|
|
ssl_session_reset( &ssl );
|
|
|
|
/*
|
|
* 3. Wait until a client connects
|
|
*/
|
|
#ifdef WIN32
|
|
ShellExecute( NULL, "open", "https://localhost:4433/",
|
|
NULL, NULL, SW_SHOWNORMAL );
|
|
#endif
|
|
|
|
client_fd = -1;
|
|
|
|
printf( " . Waiting for a remote connection ..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = net_accept( listen_fd, &client_fd, NULL ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! net_accept returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
ssl_set_bio( &ssl, net_recv, &client_fd,
|
|
net_send, &client_fd );
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 5. Handshake
|
|
*/
|
|
printf( " . Performing the SSL/TLS handshake..." );
|
|
fflush( stdout );
|
|
|
|
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_handshake returned %d\n\n", ret );
|
|
goto reset;
|
|
}
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 6. Read the HTTP Request
|
|
*/
|
|
printf( " < Read from client:" );
|
|
fflush( stdout );
|
|
|
|
do
|
|
{
|
|
len = sizeof( buf ) - 1;
|
|
memset( buf, 0, sizeof( buf ) );
|
|
ret = ssl_read( &ssl, buf, len );
|
|
|
|
if( ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE )
|
|
continue;
|
|
|
|
if( ret <= 0 )
|
|
{
|
|
switch( ret )
|
|
{
|
|
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
|
|
printf( " connection was closed gracefully\n" );
|
|
break;
|
|
|
|
case POLARSSL_ERR_NET_CONN_RESET:
|
|
printf( " connection was reset by peer\n" );
|
|
break;
|
|
|
|
default:
|
|
printf( " ssl_read returned %d\n", ret );
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
len = ret;
|
|
printf( " %d bytes read\n\n%s", len, (char *) buf );
|
|
}
|
|
while( 0 );
|
|
|
|
/*
|
|
* 7. Write the 200 Response
|
|
*/
|
|
printf( " > Write to client:" );
|
|
fflush( stdout );
|
|
|
|
len = sprintf( (char *) buf, HTTP_RESPONSE,
|
|
ssl_get_ciphersuite( &ssl ) );
|
|
|
|
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
|
|
{
|
|
if( ret == POLARSSL_ERR_NET_CONN_RESET )
|
|
{
|
|
printf( " failed\n ! peer closed the connection\n\n" );
|
|
goto reset;
|
|
}
|
|
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_write returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
len = ret;
|
|
printf( " %d bytes written\n\n%s\n", len, (char *) buf );
|
|
|
|
ssl_close_notify( &ssl );
|
|
goto reset;
|
|
|
|
exit:
|
|
|
|
net_close( client_fd );
|
|
x509_free( &srvcert );
|
|
rsa_free( &rsa );
|
|
ssl_free( &ssl );
|
|
|
|
cur = s_list_1st;
|
|
while( cur != NULL )
|
|
{
|
|
prv = cur;
|
|
cur = cur->next;
|
|
memset( prv, 0, sizeof( ssl_session ) );
|
|
free( prv );
|
|
}
|
|
|
|
memset( &ssl, 0, sizeof( ssl_context ) );
|
|
|
|
#ifdef WIN32
|
|
printf( " Press Enter to exit this program.\n" );
|
|
fflush( stdout ); getchar();
|
|
#endif
|
|
|
|
return( ret );
|
|
}
|
|
#endif /* POLARSSL_BIGNUM_C && POLARSSL_CERTS_C && POLARSSL_HAVEGE_C &&
|
|
POLARSSL_SSL_TLS_C && POLARSSL_SSL_SRV_C && POLARSSL_NET_C &&
|
|
POLARSSL_RSA_C */
|