/programs/ssl/ssl_server.c
C | 380 lines | 257 code | 68 blank | 55 comment | 45 complexity | 2665875b0565dc6af05a0cf222b28faa MD5 | raw file
Possible License(s): GPL-2.0
- /*
- * SSL server demonstration program
- *
- * Copyright (C) 2006-2011, 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
- #if defined(_WIN32)
- #include <windows.h>
- #endif
- #include <string.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include "polarssl/config.h"
- #include "polarssl/entropy.h"
- #include "polarssl/ctr_drbg.h"
- #include "polarssl/certs.h"
- #include "polarssl/x509.h"
- #include "polarssl/ssl.h"
- #include "polarssl/net.h"
- #include "polarssl/error.h"
- #if defined(POLARSSL_SSL_CACHE_C)
- #include "polarssl/ssl_cache.h"
- #endif
- #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"
- #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 );
- }
- }
- #if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_CERTS_C) || \
- !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_SSL_TLS_C) || \
- !defined(POLARSSL_SSL_SRV_C) || !defined(POLARSSL_NET_C) || \
- !defined(POLARSSL_RSA_C) || !defined(POLARSSL_CTR_DRBG_C)
- int main( int argc, char *argv[] )
- {
- ((void) argc);
- ((void) argv);
- printf("POLARSSL_BIGNUM_C and/or POLARSSL_CERTS_C and/or POLARSSL_ENTROPY_C "
- "and/or POLARSSL_SSL_TLS_C and/or POLARSSL_SSL_SRV_C and/or "
- "POLARSSL_NET_C and/or POLARSSL_RSA_C and/or "
- "POLARSSL_CTR_DRBG_C not defined.\n");
- return( 0 );
- }
- #else
- int main( int argc, char *argv[] )
- {
- int ret, len;
- int listen_fd;
- int client_fd = -1;
- unsigned char buf[1024];
- char *pers = "ssl_server";
- entropy_context entropy;
- ctr_drbg_context ctr_drbg;
- ssl_context ssl;
- x509_cert srvcert;
- rsa_context rsa;
- #if defined(POLARSSL_SSL_CACHE_C)
- ssl_cache_context cache;
- #endif
- ((void) argc);
- ((void) argv);
- #if defined(POLARSSL_SSL_CACHE_C)
- ssl_cache_init( &cache );
- #endif
- /*
- * 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" );
- /*
- * 3. Seed the RNG
- */
- printf( " . Seeding the random number generator..." );
- fflush( stdout );
- entropy_init( &entropy );
- if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
- (unsigned char *) pers, strlen( pers ) ) ) != 0 )
- {
- printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
- goto exit;
- }
- printf( " ok\n" );
- /*
- * 4. Setup stuff
- */
- printf( " . Setting up the SSL data...." );
- fflush( stdout );
- if( ( ret = ssl_init( &ssl ) ) != 0 )
- {
- printf( " failed\n ! ssl_init returned %d\n\n", ret );
- goto exit;
- }
- ssl_set_endpoint( &ssl, SSL_IS_SERVER );
- ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
- ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
- ssl_set_dbg( &ssl, my_debug, stdout );
- #if defined(POLARSSL_SSL_CACHE_C)
- ssl_set_session_cache( &ssl, ssl_cache_get, &cache,
- ssl_cache_set, &cache );
- #endif
- ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
- ssl_set_own_cert( &ssl, &srvcert, &rsa );
- printf( " ok\n" );
- reset:
- #ifdef POLARSSL_ERROR_C
- if( ret != 0 )
- {
- char error_buf[100];
- error_strerror( ret, error_buf, 100 );
- printf("Last error was: %d - %s\n\n", ret, error_buf );
- }
- #endif
- if( client_fd != -1 )
- net_close( client_fd );
- ssl_session_reset( &ssl );
- /*
- * 3. Wait until a client connects
- */
- #if defined(_WIN32_WCE)
- {
- SHELLEXECUTEINFO sei;
- ZeroMemory( &sei, sizeof( SHELLEXECUTEINFO ) );
- sei.cbSize = sizeof( SHELLEXECUTEINFO );
- sei.fMask = 0;
- sei.hwnd = 0;
- sei.lpVerb = _T( "open" );
- sei.lpFile = _T( "https://localhost:4433/" );
- sei.lpParameters = NULL;
- sei.lpDirectory = NULL;
- sei.nShow = SW_SHOWNORMAL;
- ShellExecuteEx( &sei );
- }
- #elif defined(_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 -0x%x\n", -ret );
- break;
- }
- break;
- }
- len = ret;
- printf( " %d bytes read\n\n%s", len, (char *) buf );
- if( ret > 0 )
- break;
- }
- while( 1 );
- /*
- * 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 );
-
- ret = 0;
- goto reset;
- exit:
- #ifdef POLARSSL_ERROR_C
- if( ret != 0 )
- {
- char error_buf[100];
- error_strerror( ret, error_buf, 100 );
- printf("Last error was: %d - %s\n\n", ret, error_buf );
- }
- #endif
- net_close( client_fd );
- x509_free( &srvcert );
- rsa_free( &rsa );
- ssl_free( &ssl );
- #if defined(POLARSSL_SSL_CACHE_C)
- ssl_cache_free( &cache );
- #endif
- #if defined(_WIN32)
- printf( " Press Enter to exit this program.\n" );
- fflush( stdout ); getchar();
- #endif
- return( ret );
- }
- #endif /* POLARSSL_BIGNUM_C && POLARSSL_CERTS_C && POLARSSL_ENTROPY_C &&
- POLARSSL_SSL_TLS_C && POLARSSL_SSL_SRV_C && POLARSSL_NET_C &&
- POLARSSL_RSA_C && POLARSSL_CTR_DRBG_C */