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2a0718d947
mbedtls/programs/ssl/ssl_fork_server.c
Manuel Pégourié-Gonnard 2a0718d947 Merge branch 'development' into dtls 
* development: (46 commits)
  Fix url again
  Fix small bug in base64_encode()
  Fix depend that was checked but not documented
  Fix dependency that was not checked
  Minor gitginore fixes
  Move some ignore patterns to subdirectories
  Ignore CMake/MSVC-related build files.
  Re-categorize changelog entry
  Fix misattribution
  Minor nits with stdout/stderr.
  Add cmake compatibility targets
  Add script for polarssl symlink creation
  Fix more stdio inclusion issues
  Add debug info for cert/suite selection
  Fix possible portability issue
  Fix bug in ssl_get_verify_result()
  aescrypt2.c local char array not initial
  Update Changelog
  Fix mips64 bignum implementation
  Fix usage string of ssl_client2
  ...

Conflicts:
	include/polarssl/ssl.h
	library/CMakeLists.txt
	library/Makefile
	programs/Makefile
	programs/ssl/ssl_client2.c
	programs/ssl/ssl_server2.c
	visualc/VS2010/PolarSSL.sln
	visualc/VS2010/mbedTLS.vcxproj
	visualc/VS6/mbedtls.dsp
	visualc/VS6/mbedtls.dsw
2015-01-29 11:29:12 +00:00

402 lines
11 KiB
C
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/*
* SSL server demonstration program using fork() for handling multiple clients
*
* Copyright (C) 2006-2013, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://polarssl.org)
*
* 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.
*/
#if !defined(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if defined(POLARSSL_PLATFORM_C)
#include "polarssl/platform.h"
#else
#define polarssl_printf printf
#define polarssl_fprintf fprintf
#endif
#if defined(_WIN32)
#include <windows.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#if !defined(_MSC_VER) || defined(EFIX64) || defined(EFI32)
#include <unistd.h>
#endif
#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/timing.h"
#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"
#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) || \
!defined(POLARSSL_X509_CRT_PARSE_C) || !defined(POLARSSL_TIMING_C)
int main( int argc, char *argv[] )
{
((void) argc);
((void) argv);
polarssl_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 and/or POLARSSL_X509_CRT_PARSE_C and/or "
"POLARSSL_TIMING_C not defined.\n");
return( 0 );
}
#elif defined(_WIN32)
int main( int argc, char *argv[] )
{
((void) argc);
((void) argv);
polarssl_printf("_WIN32 defined. This application requires fork() and signals "
"to work correctly.\n");
return( 0 );
}
#else
#define DEBUG_LEVEL 0
static void my_debug( void *ctx, int level, const char *str )
{
if( level < DEBUG_LEVEL )
{
polarssl_fprintf( (FILE *) ctx, "%s", str );
fflush( (FILE *) ctx );
}
}
int main( int argc, char *argv[] )
{
int ret, len, cnt = 0, pid;
int listen_fd;
int client_fd = -1;
unsigned char buf[1024];
const char *pers = "ssl_fork_server";
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt srvcert;
pk_context pkey;
((void) argc);
((void) argv);
memset( &ssl, 0, sizeof(ssl_context) );
entropy_init( &entropy );
pk_init( &pkey );
x509_crt_init( &srvcert );
signal( SIGCHLD, SIG_IGN );
/*
* 0. Initial seeding of the RNG
*/
polarssl_printf( "\n . Initial seeding of the random generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 1. Load the certificates and private RSA key
*/
polarssl_printf( " . Loading the server cert. and key..." );
fflush( stdout );
/*
* This demonstration program uses embedded test certificates.
* Instead, you may want to use x509_crt_parse_file() to read the
* server and CA certificates, as well as pk_parse_keyfile().
*/
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_srv_crt,
strlen( test_srv_crt ) );
if( ret != 0 )
{
polarssl_printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
if( ret != 0 )
{
polarssl_printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = pk_parse_key( &pkey, (const unsigned char *) test_srv_key,
strlen( test_srv_key ), NULL, 0 );
if( ret != 0 )
{
polarssl_printf( " failed\n ! pk_parse_key returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 2. Setup the listening TCP socket
*/
polarssl_printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_TCP ) ) != 0 )
{
polarssl_printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
while( 1 )
{
/*
* 3. Wait until a client connects
*/
client_fd = -1;
memset( &ssl, 0, sizeof( ssl ) );
polarssl_printf( " . Waiting for a remote connection ..." );
fflush( stdout );
if( ( ret = net_accept( listen_fd, &client_fd, NULL ) ) != 0 )
{
polarssl_printf( " failed\n ! net_accept returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 3.5. Forking server thread
*/
pid = fork();
polarssl_printf( " . Forking to handle connection ..." );
fflush( stdout );
if( pid < 0 )
{
polarssl_printf(" failed\n ! fork returned %d\n\n", pid );
goto exit;
}
polarssl_printf( " ok\n" );
if( pid != 0 )
{
if( ( ret = ctr_drbg_reseed( &ctr_drbg,
(const unsigned char *) "parent",
6 ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_reseed returned %d\n", ret );
goto exit;
}
close( client_fd );
continue;
}
close( listen_fd );
/*
* 4. Setup stuff
*/
polarssl_printf( " . Setting up the SSL data...." );
fflush( stdout );
if( ( ret = ctr_drbg_reseed( &ctr_drbg,
(const unsigned char *) "child",
5 ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_reseed returned %d\n", ret );
goto exit;
}
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1 );
/* RC4 is deprecated, disable it */
ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio( &ssl, net_recv, &client_fd,
net_send, &client_fd );
ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
if( ( ret = ssl_set_own_cert( &ssl, &srvcert, &pkey ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
/*
* 5. Handshake
*/
polarssl_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 )
{
polarssl_printf( " failed\n ! ssl_handshake returned %d\n\n", ret );
goto exit;
}
}
polarssl_printf( " ok\n" );
/*
* 6. Read the HTTP Request
*/
polarssl_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:
polarssl_printf( " connection was closed gracefully\n" );
break;
case POLARSSL_ERR_NET_CONN_RESET:
polarssl_printf( " connection was reset by peer\n" );
break;
default:
polarssl_printf( " ssl_read returned %d\n", ret );
break;
}
break;
}
len = ret;
polarssl_printf( " %d bytes read\n\n%s", len, (char *) buf );
}
while( 0 );
/*
* 7. Write the 200 Response
*/
polarssl_printf( " > Write to client:" );
fflush( stdout );
len = sprintf( (char *) buf, HTTP_RESPONSE,
ssl_get_ciphersuite( &ssl ) );
while( cnt++ < 100 )
{
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
{
if( ret == POLARSSL_ERR_NET_CONN_RESET )
{
polarssl_printf( " failed\n ! peer closed the connection\n\n" );
goto exit;
}
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
polarssl_printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
}
len = ret;
polarssl_printf( " %d bytes written\n\n%s\n", len, (char *) buf );
m_sleep( 1000 );
}
ssl_close_notify( &ssl );
goto exit;
}
exit:
if( client_fd != -1 )
net_close( client_fd );
x509_crt_free( &srvcert );
pk_free( &pkey );
ssl_free( &ssl );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_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 */
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