Revert "Remove programs that depend on TLS or X.509"
This reverts commit 0688e4f2668dab8ad95b734c23b35977134a6d21.
Run scripts/generate_visualc_files.pl to account for the added programs.
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
new file mode 100644
index 0000000..b6f1cc4
--- /dev/null
+++ b/programs/ssl/ssl_fork_server.c
@@ -0,0 +1,435 @@
+/*
+ * SSL server demonstration program using fork() for handling multiple clients
+ *
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#else
+#include <stdio.h>
+#include <stdlib.h>
+#define mbedtls_fprintf fprintf
+#define mbedtls_printf printf
+#define mbedtls_time_t time_t
+#define mbedtls_exit exit
+#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
+#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
+#endif /* MBEDTLS_PLATFORM_C */
+
+#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_CERTS_C) || \
+ !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_SSL_TLS_C) || \
+ !defined(MBEDTLS_SSL_SRV_C) || !defined(MBEDTLS_NET_C) || \
+ !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_CTR_DRBG_C) || \
+ !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_TIMING_C) || \
+ !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_PEM_PARSE_C)
+int main( int argc, char *argv[] )
+{
+ ((void) argc);
+ ((void) argv);
+
+ mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_CERTS_C and/or MBEDTLS_ENTROPY_C "
+ "and/or MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
+ "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
+ "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C and/or "
+ "MBEDTLS_TIMING_C and/or MBEDTLS_PEM_PARSE_C not defined.\n");
+ return( 0 );
+}
+#elif defined(_WIN32)
+int main( void )
+{
+ mbedtls_printf("_WIN32 defined. This application requires fork() and signals "
+ "to work correctly.\n");
+ return( 0 );
+}
+#else
+
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/certs.h"
+#include "mbedtls/x509.h"
+#include "mbedtls/ssl.h"
+#include "mbedtls/net_sockets.h"
+#include "mbedtls/timing.h"
+
+#include <string.h>
+#include <signal.h>
+
+#if !defined(_MSC_VER) || defined(EFIX64) || defined(EFI32)
+#include <unistd.h>
+#endif
+
+#define HTTP_RESPONSE \
+ "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
+ "<h2>mbed TLS Test Server</h2>\r\n" \
+ "<p>Successful connection using: %s</p>\r\n"
+
+#define DEBUG_LEVEL 0
+
+#if defined(MBEDTLS_CHECK_PARAMS)
+#include "mbedtls/platform_util.h"
+void mbedtls_param_failed( const char *failure_condition,
+ const char *file,
+ int line )
+{
+ mbedtls_printf( "%s:%i: Input param failed - %s\n",
+ file, line, failure_condition );
+ mbedtls_exit( MBEDTLS_EXIT_FAILURE );
+}
+#endif
+
+static void my_debug( void *ctx, int level,
+ const char *file, int line,
+ const char *str )
+{
+ ((void) level);
+
+ mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
+ fflush( (FILE *) ctx );
+}
+
+int main( void )
+{
+ int ret = 1, len, cnt = 0, pid;
+ int exit_code = MBEDTLS_EXIT_FAILURE;
+ mbedtls_net_context listen_fd, client_fd;
+ unsigned char buf[1024];
+ const char *pers = "ssl_fork_server";
+
+ mbedtls_entropy_context entropy;
+ mbedtls_ctr_drbg_context ctr_drbg;
+ mbedtls_ssl_context ssl;
+ mbedtls_ssl_config conf;
+ mbedtls_x509_crt srvcert;
+ mbedtls_pk_context pkey;
+
+ mbedtls_net_init( &listen_fd );
+ mbedtls_net_init( &client_fd );
+ mbedtls_ssl_init( &ssl );
+ mbedtls_ssl_config_init( &conf );
+ mbedtls_entropy_init( &entropy );
+ mbedtls_pk_init( &pkey );
+ mbedtls_x509_crt_init( &srvcert );
+ mbedtls_ctr_drbg_init( &ctr_drbg );
+
+ signal( SIGCHLD, SIG_IGN );
+
+ /*
+ * 0. Initial seeding of the RNG
+ */
+ mbedtls_printf( "\n . Initial seeding of the random generator..." );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
+ (const unsigned char *) pers,
+ strlen( pers ) ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_ctr_drbg_seed returned %d\n\n", ret );
+ goto exit;
+ }
+
+ mbedtls_printf( " ok\n" );
+
+ /*
+ * 1. Load the certificates and private RSA key
+ */
+ mbedtls_printf( " . Loading the server cert. and key..." );
+ fflush( stdout );
+
+ /*
+ * This demonstration program uses embedded test certificates.
+ * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
+ * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
+ */
+ ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
+ mbedtls_test_srv_crt_len );
+ if( ret != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_x509_crt_parse returned %d\n\n", ret );
+ goto exit;
+ }
+
+ ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_cas_pem,
+ mbedtls_test_cas_pem_len );
+ if( ret != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_x509_crt_parse returned %d\n\n", ret );
+ goto exit;
+ }
+
+ ret = mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
+ mbedtls_test_srv_key_len, NULL, 0 );
+ if( ret != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_pk_parse_key returned %d\n\n", ret );
+ goto exit;
+ }
+
+ mbedtls_printf( " ok\n" );
+
+ /*
+ * 1b. Prepare SSL configuration
+ */
+ mbedtls_printf( " . Configuring SSL..." );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_ssl_config_defaults( &conf,
+ MBEDTLS_SSL_IS_SERVER,
+ MBEDTLS_SSL_TRANSPORT_STREAM,
+ MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_ssl_config_defaults returned %d\n\n", ret );
+ goto exit;
+ }
+
+ mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
+ mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
+
+ mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
+ if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
+ goto exit;
+ }
+
+ mbedtls_printf( " ok\n" );
+
+ /*
+ * 2. Setup the listening TCP socket
+ */
+ mbedtls_printf( " . Bind on https://localhost:4433/ ..." );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_net_bind( &listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_net_bind returned %d\n\n", ret );
+ goto exit;
+ }
+
+ mbedtls_printf( " ok\n" );
+
+ while( 1 )
+ {
+ /*
+ * 3. Wait until a client connects
+ */
+ mbedtls_net_init( &client_fd );
+ mbedtls_ssl_init( &ssl );
+
+ mbedtls_printf( " . Waiting for a remote connection ...\n" );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
+ NULL, 0, NULL ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_net_accept returned %d\n\n", ret );
+ goto exit;
+ }
+
+ /*
+ * 3.5. Forking server thread
+ */
+
+ mbedtls_printf( " . Forking to handle connection ..." );
+ fflush( stdout );
+
+ pid = fork();
+
+ if( pid < 0 )
+ {
+ mbedtls_printf(" failed! fork returned %d\n\n", pid );
+ goto exit;
+ }
+
+ if( pid != 0 )
+ {
+ mbedtls_printf( " ok\n" );
+
+ if( ( ret = mbedtls_ctr_drbg_reseed( &ctr_drbg,
+ (const unsigned char *) "parent",
+ 6 ) ) != 0 )
+ {
+ mbedtls_printf( " failed! mbedtls_ctr_drbg_reseed returned %d\n\n", ret );
+ goto exit;
+ }
+
+ continue;
+ }
+
+ mbedtls_net_init( &listen_fd );
+
+ pid = getpid();
+
+ /*
+ * 4. Setup stuff
+ */
+ mbedtls_printf( "pid %d: Setting up the SSL data.\n", pid );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_ctr_drbg_reseed( &ctr_drbg,
+ (const unsigned char *) "child",
+ 5 ) ) != 0 )
+ {
+ mbedtls_printf(
+ "pid %d: SSL setup failed! mbedtls_ctr_drbg_reseed returned %d\n\n",
+ pid, ret );
+ goto exit;
+ }
+
+ if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
+ {
+ mbedtls_printf(
+ "pid %d: SSL setup failed! mbedtls_ssl_setup returned %d\n\n",
+ pid, ret );
+ goto exit;
+ }
+
+ mbedtls_ssl_set_bio( &ssl, &client_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
+
+ mbedtls_printf( "pid %d: SSL setup ok\n", pid );
+
+ /*
+ * 5. Handshake
+ */
+ mbedtls_printf( "pid %d: Performing the SSL/TLS handshake.\n", pid );
+ fflush( stdout );
+
+ while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
+ {
+ if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
+ {
+ mbedtls_printf(
+ "pid %d: SSL handshake failed! mbedtls_ssl_handshake returned %d\n\n",
+ pid, ret );
+ goto exit;
+ }
+ }
+
+ mbedtls_printf( "pid %d: SSL handshake ok\n", pid );
+
+ /*
+ * 6. Read the HTTP Request
+ */
+ mbedtls_printf( "pid %d: Start reading from client.\n", pid );
+ fflush( stdout );
+
+ do
+ {
+ len = sizeof( buf ) - 1;
+ memset( buf, 0, sizeof( buf ) );
+ ret = mbedtls_ssl_read( &ssl, buf, len );
+
+ if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
+ continue;
+
+ if( ret <= 0 )
+ {
+ switch( ret )
+ {
+ case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
+ mbedtls_printf( "pid %d: connection was closed gracefully\n", pid );
+ break;
+
+ case MBEDTLS_ERR_NET_CONN_RESET:
+ mbedtls_printf( "pid %d: connection was reset by peer\n", pid );
+ break;
+
+ default:
+ mbedtls_printf( "pid %d: mbedtls_ssl_read returned %d\n", pid, ret );
+ break;
+ }
+
+ break;
+ }
+
+ len = ret;
+ mbedtls_printf( "pid %d: %d bytes read\n\n%s", pid, len, (char *) buf );
+
+ if( ret > 0 )
+ break;
+ }
+ while( 1 );
+
+ /*
+ * 7. Write the 200 Response
+ */
+ mbedtls_printf( "pid %d: Start writing to client.\n", pid );
+ fflush( stdout );
+
+ len = sprintf( (char *) buf, HTTP_RESPONSE,
+ mbedtls_ssl_get_ciphersuite( &ssl ) );
+
+ while( cnt++ < 100 )
+ {
+ while( ( ret = mbedtls_ssl_write( &ssl, buf, len ) ) <= 0 )
+ {
+ if( ret == MBEDTLS_ERR_NET_CONN_RESET )
+ {
+ mbedtls_printf(
+ "pid %d: Write failed! peer closed the connection\n\n", pid );
+ goto exit;
+ }
+
+ if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
+ {
+ mbedtls_printf(
+ "pid %d: Write failed! mbedtls_ssl_write returned %d\n\n",
+ pid, ret );
+ goto exit;
+ }
+ }
+ len = ret;
+ mbedtls_printf( "pid %d: %d bytes written\n\n%s\n", pid, len, (char *) buf );
+
+ mbedtls_net_usleep( 1000000 );
+ }
+
+ mbedtls_ssl_close_notify( &ssl );
+ goto exit;
+ }
+
+ exit_code = MBEDTLS_EXIT_SUCCESS;
+
+exit:
+ mbedtls_net_free( &client_fd );
+ mbedtls_net_free( &listen_fd );
+
+ mbedtls_x509_crt_free( &srvcert );
+ mbedtls_pk_free( &pkey );
+ mbedtls_ssl_free( &ssl );
+ mbedtls_ssl_config_free( &conf );
+ mbedtls_ctr_drbg_free( &ctr_drbg );
+ mbedtls_entropy_free( &entropy );
+
+#if defined(_WIN32)
+ mbedtls_printf( " Press Enter to exit this program.\n" );
+ fflush( stdout ); getchar();
+#endif
+
+ return( exit_code );
+}
+#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_CERTS_C && MBEDTLS_ENTROPY_C &&
+ MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C &&
+ MBEDTLS_RSA_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_PEM_PARSE_C &&
+ ! _WIN32 */