From b60b95fd7f32eed3e5d9a8a12ba478ec71eea209 Mon Sep 17 00:00:00 2001 From: Paul Bakker Date: Tue, 25 Sep 2012 09:05:17 +0000 Subject: [PATCH] - Added first version of ssl_server2 example application --- programs/Makefile | 7 +- programs/ssl/CMakeLists.txt | 3 + programs/ssl/ssl_server2.c | 698 ++++++++++++++++++++++++++++++++++++ 3 files changed, 707 insertions(+), 1 deletion(-) create mode 100644 programs/ssl/ssl_server2.c diff --git a/programs/Makefile b/programs/Makefile index 1790779bc..adc66ce55 100644 --- a/programs/Makefile +++ b/programs/Makefile @@ -31,7 +31,8 @@ APPS = aes/aescrypt2 aes/crypt_and_hash \ pkey/rsa_sign pkey/rsa_verify \ pkey/rsa_sign_pss pkey/rsa_verify_pss \ ssl/ssl_client1 ssl/ssl_client2 \ - ssl/ssl_server ssl/ssl_fork_server \ + ssl/ssl_server ssl/ssl_server2 \ + ssl/ssl_fork_server \ ssl/ssl_mail_client random/gen_entropy \ random/gen_random_havege \ random/gen_random_ctr_drbg \ @@ -153,6 +154,10 @@ ssl/ssl_server: ssl/ssl_server.c ../library/libpolarssl.a echo " CC ssl/ssl_server.c" $(CC) $(CFLAGS) $(OFLAGS) ssl/ssl_server.c $(LDFLAGS) -o $@ +ssl/ssl_server2: ssl/ssl_server2.c ../library/libpolarssl.a + echo " CC ssl/ssl_server2.c" + $(CC) $(CFLAGS) $(OFLAGS) ssl/ssl_server2.c $(LDFLAGS) -o $@ + ssl/ssl_fork_server: ssl/ssl_fork_server.c ../library/libpolarssl.a echo " CC ssl/ssl_fork_server.c" $(CC) $(CFLAGS) $(OFLAGS) ssl/ssl_fork_server.c $(LDFLAGS) -o $@ diff --git a/programs/ssl/CMakeLists.txt b/programs/ssl/CMakeLists.txt index 1986b0849..a117b58a0 100644 --- a/programs/ssl/CMakeLists.txt +++ b/programs/ssl/CMakeLists.txt @@ -19,6 +19,9 @@ target_link_libraries(ssl_client2 ${libs}) add_executable(ssl_server ssl_server.c) target_link_libraries(ssl_server ${libs}) +add_executable(ssl_server2 ssl_server2.c) +target_link_libraries(ssl_server2 ${libs}) + add_executable(ssl_fork_server ssl_fork_server.c) target_link_libraries(ssl_fork_server ${libs}) diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c new file mode 100644 index 000000000..4e85f72bf --- /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 + * + * 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 +#endif + +#include +#include +#include + +#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" \ + "

PolarSSL Test Server

\r\n" \ + "

Successful connection using: %s

\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= 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 */