- Added first version of ssl_server2 example application
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
new file mode 100644
index 0000000..4e85f72
--- /dev/null
+++ b/programs/ssl/ssl_server2.c
@@ -0,0 +1,698 @@
+/*
+ * SSL client with options
+ *
+ * Copyright (C) 2006-2012, 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/net.h"
+#include "polarssl/ssl.h"
+#include "polarssl/entropy.h"
+#include "polarssl/ctr_drbg.h"
+#include "polarssl/certs.h"
+#include "polarssl/x509.h"
+#include "polarssl/error.h"
+
+#define DFL_SERVER_PORT 4433
+#define DFL_REQUEST_PAGE "/"
+#define DFL_DEBUG_LEVEL 0
+#define DFL_CA_FILE ""
+#define DFL_CA_PATH ""
+#define DFL_CRT_FILE ""
+#define DFL_KEY_FILE ""
+#define DFL_FORCE_CIPHER 0
+#define DFL_RENEGOTIATION SSL_RENEGOTIATION_ENABLED
+#define DFL_ALLOW_LEGACY SSL_LEGACY_NO_RENEGOTIATION
+
+#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";
+
+/*
+ * global options
+ */
+struct options
+{
+ int server_port; /* port on which the ssl service runs */
+ int debug_level; /* level of debugging */
+ char *ca_file; /* the file with the CA certificate(s) */
+ char *ca_path; /* the path with the CA certificate(s) reside */
+ char *crt_file; /* the file with the client certificate */
+ char *key_file; /* the file with the client key */
+ int force_ciphersuite[2]; /* protocol/ciphersuite to use, or all */
+ int renegotiation; /* enable / disable renegotiation */
+ int allow_legacy; /* allow legacy renegotiation */
+} opt;
+
+void my_debug( void *ctx, int level, const char *str )
+{
+ if( level < opt.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 && (int) ( 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 && (int) ( 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_FS_IO)
+#define USAGE_IO \
+ " ca_file=%%s default: \"\" (pre-loaded)\n" \
+ " ca_path=%%s default: \"\" (pre-loaded) (overrides ca_file)\n" \
+ " crt_file=%%s default: \"\" (pre-loaded)\n" \
+ " key_file=%%s default: \"\" (pre-loaded)\n"
+#else
+#define USAGE_IO \
+ " No file operations available (POLARSSL_FS_IO not defined)\n"
+#endif /* POLARSSL_FS_IO */
+
+#define USAGE \
+ "\n usage: ssl_server2 param=<>...\n" \
+ "\n acceptable parameters:\n" \
+ " server_port=%%d default: 4433\n" \
+ " debug_level=%%d default: 0 (disabled)\n" \
+ USAGE_IO \
+ " request_page=%%s default: \".\"\n" \
+ " renegotiation=%%d default: 1 (enabled)\n" \
+ " allow_legacy=%%d default: 0 (disabled)\n" \
+ " force_ciphersuite=<name> default: all enabled\n"\
+ " acceptable ciphersuite names:\n"
+
+#if !defined(POLARSSL_BIGNUM_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_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 = 0, len;
+ int listen_fd;
+ int client_fd = -1;
+ unsigned char buf[1024];
+ char *pers = "ssl_server2";
+
+ entropy_context entropy;
+ ctr_drbg_context ctr_drbg;
+ ssl_context ssl;
+ ssl_session ssn;
+ x509_cert cacert;
+ x509_cert srvcert;
+ rsa_context rsa;
+
+ int i;
+ size_t j, n;
+ char *p, *q;
+ const int *list;
+
+ /*
+ * Make sure memory references are valid.
+ */
+ listen_fd = 0;
+ memset( &ssn, 0, sizeof( ssl_session ) );
+ memset( &ssl, 0, sizeof( ssl_context ) );
+ memset( &cacert, 0, sizeof( x509_cert ) );
+ memset( &srvcert, 0, sizeof( x509_cert ) );
+ memset( &rsa, 0, sizeof( rsa_context ) );
+
+ if( argc == 0 )
+ {
+ usage:
+ if( ret == 0 )
+ ret = 1;
+
+ printf( USAGE );
+
+ list = ssl_list_ciphersuites();
+ while( *list )
+ {
+ printf(" %s\n", ssl_get_ciphersuite_name( *list ) );
+ list++;
+ }
+ printf("\n");
+ goto exit;
+ }
+
+ opt.server_port = DFL_SERVER_PORT;
+ opt.debug_level = DFL_DEBUG_LEVEL;
+ opt.ca_file = DFL_CA_FILE;
+ opt.ca_path = DFL_CA_PATH;
+ opt.crt_file = DFL_CRT_FILE;
+ opt.key_file = DFL_KEY_FILE;
+ opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
+ opt.renegotiation = DFL_RENEGOTIATION;
+ opt.allow_legacy = DFL_ALLOW_LEGACY;
+
+ for( i = 1; i < argc; i++ )
+ {
+ n = strlen( argv[i] );
+
+ for( j = 0; j < n; j++ )
+ {
+ if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
+ argv[i][j] |= 0x20;
+ }
+
+ p = argv[i];
+ if( ( q = strchr( p, '=' ) ) == NULL )
+ goto usage;
+ *q++ = '\0';
+
+ if( strcmp( p, "server_port" ) == 0 )
+ {
+ opt.server_port = atoi( q );
+ if( opt.server_port < 1 || opt.server_port > 65535 )
+ goto usage;
+ }
+ else if( strcmp( p, "debug_level" ) == 0 )
+ {
+ opt.debug_level = atoi( q );
+ if( opt.debug_level < 0 || opt.debug_level > 65535 )
+ goto usage;
+ }
+ else if( strcmp( p, "ca_file" ) == 0 )
+ opt.ca_file = q;
+ else if( strcmp( p, "ca_path" ) == 0 )
+ opt.ca_path = q;
+ else if( strcmp( p, "crt_file" ) == 0 )
+ opt.crt_file = q;
+ else if( strcmp( p, "key_file" ) == 0 )
+ opt.key_file = q;
+ else if( strcmp( p, "force_ciphersuite" ) == 0 )
+ {
+ opt.force_ciphersuite[0] = -1;
+
+ opt.force_ciphersuite[0] = ssl_get_ciphersuite_id( q );
+
+ if( opt.force_ciphersuite[0] <= 0 )
+ {
+ ret = 2;
+ goto usage;
+ }
+ opt.force_ciphersuite[1] = 0;
+ }
+ else if( strcmp( p, "renegotiation" ) == 0 )
+ {
+ opt.renegotiation = (atoi( q )) ? SSL_RENEGOTIATION_ENABLED :
+ SSL_RENEGOTIATION_DISABLED;
+ }
+ else if( strcmp( p, "allow_legacy" ) == 0 )
+ {
+ opt.allow_legacy = atoi( q );
+ if( opt.allow_legacy < 0 || opt.allow_legacy > 1 )
+ goto usage;
+ }
+ else
+ goto usage;
+ }
+
+ /*
+ * 0. Initialize the RNG and the session data
+ */
+ printf( "\n . 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 -0x%x\n", -ret );
+ goto exit;
+ }
+
+ printf( " ok\n" );
+
+ /*
+ * 1.1. Load the trusted CA
+ */
+ printf( " . Loading the CA root certificate ..." );
+ fflush( stdout );
+
+#if defined(POLARSSL_FS_IO)
+ if( strlen( opt.ca_path ) )
+ ret = x509parse_crtpath( &cacert, opt.ca_path );
+ else if( strlen( opt.ca_file ) )
+ ret = x509parse_crtfile( &cacert, opt.ca_file );
+ else
+#endif
+#if defined(POLARSSL_CERTS_C)
+ ret = x509parse_crt( &cacert, (unsigned char *) test_ca_crt,
+ strlen( test_ca_crt ) );
+#else
+ {
+ ret = 1;
+ printf("POLARSSL_CERTS_C not defined.");
+ }
+#endif
+ if( ret < 0 )
+ {
+ printf( " failed\n ! x509parse_crt returned -0x%x\n\n", -ret );
+ goto exit;
+ }
+
+ printf( " ok (%d skipped)\n", ret );
+
+ /*
+ * 1.2. Load own certificate and private key
+ */
+ printf( " . Loading the server cert. and key..." );
+ fflush( stdout );
+
+#if defined(POLARSSL_FS_IO)
+ if( strlen( opt.crt_file ) )
+ ret = x509parse_crtfile( &srvcert, opt.crt_file );
+ else
+#endif
+#if defined(POLARSSL_CERTS_C)
+ ret = x509parse_crt( &srvcert, (unsigned char *) test_srv_crt,
+ strlen( test_srv_crt ) );
+#else
+ {
+ ret = 1;
+ printf("POLARSSL_CERTS_C not defined.");
+ }
+#endif
+ if( ret != 0 )
+ {
+ printf( " failed\n ! x509parse_crt returned -0x%x\n\n", -ret );
+ goto exit;
+ }
+
+#if defined(POLARSSL_FS_IO)
+ if( strlen( opt.key_file ) )
+ ret = x509parse_keyfile( &rsa, opt.key_file, "" );
+ else
+#endif
+#if defined(POLARSSL_CERTS_C)
+ ret = x509parse_key( &rsa, (unsigned char *) test_srv_key,
+ strlen( test_srv_key ), NULL, 0 );
+#else
+ {
+ ret = 1;
+ printf("POLARSSL_CERTS_C not defined.");
+ }
+#endif
+ if( ret != 0 )
+ {
+ printf( " failed\n ! x509parse_key returned -0x%x\n\n", -ret );
+ goto exit;
+ }
+
+ printf( " ok\n" );
+
+ /*
+ * 2. Setup the listening TCP socket
+ */
+ printf( " . Bind on tcp://localhost:%-4d/ ...", opt.server_port );
+ fflush( stdout );
+
+ if( ( ret = net_bind( &listen_fd, NULL, opt.server_port ) ) != 0 )
+ {
+ printf( " failed\n ! net_bind returned -0x%x\n\n", -ret );
+ goto exit;
+ }
+
+ printf( " ok\n" );
+
+ /*
+ * 3. Setup stuff
+ */
+ printf( " . Setting up the SSL/TLS structure..." );
+ fflush( stdout );
+
+ if( ( ret = ssl_init( &ssl ) ) != 0 )
+ {
+ printf( " failed\n ! ssl_init returned -0x%x\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 );
+
+ ssl_set_scb( &ssl, my_get_session,
+ my_set_session );
+
+ if( opt.force_ciphersuite[0] == DFL_FORCE_CIPHER )
+ ssl_set_ciphersuites( &ssl, ssl_default_ciphersuites );
+ else
+ ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
+
+ ssl_set_renegotiation( &ssl, opt.renegotiation );
+ ssl_legacy_renegotiation( &ssl, opt.allow_legacy );
+
+ ssl_set_session( &ssl, 1, 0, &ssn );
+
+ ssl_set_ca_chain( &ssl, &cacert, NULL, NULL );
+ ssl_set_own_cert( &ssl, &srvcert, &rsa );
+
+#if defined(POLARSSL_DHM_C)
+ ssl_set_dh_param( &ssl, my_dhm_P, my_dhm_G );
+#endif
+
+ 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 -0x%x\n\n", -ret );
+ goto exit;
+ }
+
+ ssl_set_bio( &ssl, net_recv, &client_fd,
+ net_send, &client_fd );
+
+ printf( " ok\n" );
+
+ /*
+ * 4. 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 -0x%x\n\n", -ret );
+ goto exit;
+ }
+ }
+
+ printf( " ok\n [ Ciphersuite is %s ]\n",
+ ssl_get_ciphersuite( &ssl ) );
+
+ /*
+ * 5. Verify the server certificate
+ */
+ printf( " . Verifying peer X.509 certificate..." );
+
+ if( ( ret = ssl_get_verify_result( &ssl ) ) != 0 )
+ {
+ printf( " failed\n" );
+
+ if( !ssl.session->peer_cert )
+ printf( " ! no client certificate sent\n" );
+
+ if( ( ret & BADCERT_EXPIRED ) != 0 )
+ printf( " ! client certificate has expired\n" );
+
+ if( ( ret & BADCERT_REVOKED ) != 0 )
+ printf( " ! client certificate has been revoked\n" );
+
+ if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
+ printf( " ! self-signed or not signed by a trusted CA\n" );
+
+ printf( "\n" );
+ }
+ else
+ printf( " ok\n" );
+
+ if( ssl.session->peer_cert )
+ {
+ printf( " . Peer certificate information ...\n" );
+ x509parse_cert_info( (char *) buf, sizeof( buf ) - 1, " ",
+ ssl.session->peer_cert );
+ printf( "%s\n", buf );
+ }
+
+ /*
+ * 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: -0x%X - %s\n\n", -ret, error_buf );
+ }
+#endif
+
+ net_close( client_fd );
+ x509_free( &srvcert );
+ x509_free( &cacert );
+ rsa_free( &rsa );
+ ssl_session_free( &ssn );
+ ssl_session_free( s_list_1st );
+ ssl_free( &ssl );
+
+#if defined(_WIN32)
+ printf( " + Press Enter to exit this program.\n" );
+ fflush( stdout ); getchar();
+#endif
+
+ return( ret );
+}
+#endif /* POLARSSL_BIGNUM_C && POLARSSL_ENTROPY_C && POLARSSL_SSL_TLS_C &&
+ POLARSSL_SSL_SRV_C && POLARSSL_NET_C && POLARSSL_RSA_C &&
+ POLARSSL_CTR_DRBG_C */