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Add dlts_client.c and dtls_server.c

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-10-14 11:47:21 +02:00 committed by Paul Bakker
parent dc6a75a952
commit e63582a166
7 changed files with 776 additions and 3 deletions
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2
programs/.gitignore vendored
View file

@ -28,6 +28,8 @@ pkey/rsa_verify_pss
random/gen_entropy
random/gen_random_ctr_drbg
random/gen_random_havege
ssl/dtls_client
ssl/dtls_server
ssl/ssl_client1
ssl/ssl_client2
ssl/ssl_fork_server

9
programs/Makefile
View file

@ -33,6 +33,7 @@ APPS = aes/aescrypt2 aes/crypt_and_hash \
pkey/rsa_decrypt pkey/rsa_encrypt \
pkey/rsa_sign pkey/rsa_verify \
pkey/rsa_sign_pss pkey/rsa_verify_pss \
ssl/dtls_client ssl/dtls_server \
ssl/ssl_client1 ssl/ssl_client2 \
ssl/ssl_server ssl/ssl_server2 \
ssl/ssl_fork_server \
@ -174,6 +175,14 @@ random/gen_random_ctr_drbg: random/gen_random_ctr_drbg.c ../library/libpolarssl.
echo " CC random/gen_random_ctr_drbg.c"
$(CC) $(CFLAGS) $(OFLAGS) random/gen_random_ctr_drbg.c $(LDFLAGS) -o $@
ssl/dtls_client: ssl/dtls_client.c ../library/libpolarssl.a
echo " CC ssl/dtls_client.c"
$(CC) $(CFLAGS) $(OFLAGS) ssl/dtls_client.c $(LDFLAGS) -o $@
ssl/dtls_server: ssl/dtls_server.c ../library/libpolarssl.a
echo " CC ssl/dtls_server.c"
$(CC) $(CFLAGS) $(OFLAGS) ssl/dtls_server.c $(LDFLAGS) -o $@
ssl/ssl_client1: ssl/ssl_client1.c ../library/libpolarssl.a
echo " CC ssl/ssl_client1.c"
$(CC) $(CFLAGS) $(OFLAGS) ssl/ssl_client1.c $(LDFLAGS) -o $@

8
programs/ssl/CMakeLists.txt
View file

@ -6,6 +6,8 @@ set(libs
)
set(targets
dtls_client
dtls_server
ssl_client1
ssl_client2
ssl_server
@ -21,6 +23,12 @@ if(ENABLE_ZLIB_SUPPORT)
set(libs ${libs} ${ZLIB_LIBRARIES})
endif(ENABLE_ZLIB_SUPPORT)
add_executable(dtls_client dtls_client.c)
target_link_libraries(dtls_client ${libs})
add_executable(dtls_server dtls_server.c)
target_link_libraries(dtls_server ${libs})
add_executable(ssl_client1 ssl_client1.c)
target_link_libraries(ssl_client1 ${libs})

343
programs/ssl/dtls_client.c Normal file
View file

@ -0,0 +1,343 @@
/*
* Simple DTLS client demonstration program
*
* Copyright (C) 2014, 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.
*/
#if !defined(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if !defined(POLARSSL_SSL_CLI_C) || !defined(POLARSSL_SSL_PROTO_DTLS) || \
!defined(POLARSSL_NET_C) || \
!defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C) || \
!defined(POLARSSL_X509_CRT_PARSE_C) || !defined(POLARSSL_RSA_C) || \
!defined(POLARSSL_CERTS_C)
#include <stdio.h>
int main( int argc, char *argv[] )
{
((void) argc);
((void) argv);
printf( "POLARSSL_SSL_CLI_C and/or POLARSSL_SSL_PROTO_DTLS and/or "
"POLARSSL_NET_C and/or "
"POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
"POLARSSL_X509_CRT_PARSE_C and/or POLARSSL_RSA_C and/or "
"POLARSSL_CERTS_C not defined.\n" );
return( 0 );
}
#else
#include <string.h>
#include <stdio.h>
#include "polarssl/net.h"
#include "polarssl/debug.h"
#include "polarssl/ssl.h"
#include "polarssl/entropy.h"
#include "polarssl/ctr_drbg.h"
#include "polarssl/error.h"
#include "polarssl/certs.h"
#define SERVER_PORT 4433
#define SERVER_NAME "localhost"
#define SERVER_ADDR "127.0.0.1" /* forces IPv4 */
#define MESSAGE "Echo this"
#define READ_TIMEOUT_MS 1000
#define MAX_RETRY 5
#define DEBUG_LEVEL 0
static void my_debug( void *ctx, int level, const char *str )
{
((void) level);
fprintf( (FILE *) ctx, "%s", str );
fflush( (FILE *) ctx );
}
int main( int argc, char *argv[] )
{
int ret, len, server_fd = -1;
unsigned char buf[1024];
const char *pers = "dtls_client";
int retry_left = MAX_RETRY;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt cacert;
((void) argc);
((void) argv);
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( DEBUG_LEVEL );
#endif
/*
* 0. Initialize the RNG and the session data
*/
memset( &ssl, 0, sizeof( ssl_context ) );
x509_crt_init( &cacert );
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 0. Initialize certificates
*/
printf( " . Loading the CA root certificate ..." );
fflush( stdout );
#if defined(POLARSSL_CERTS_C)
ret = x509_crt_parse( &cacert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
#else
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
#endif
if( ret < 0 )
{
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok (%d skipped)\n", ret );
/*
* 1. Start the connection
*/
printf( " . Connecting to udp/%s/%4d...", SERVER_NAME,
SERVER_PORT );
fflush( stdout );
if( ( ret = net_connect( &server_fd, SERVER_ADDR,
SERVER_PORT, NET_PROTO_UDP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Setup stuff
*/
printf( " . Setting up the DTLS structure..." );
fflush( stdout );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
ssl_set_transport( &ssl, SSL_TRANSPORT_DATAGRAM );
/* OPTIONAL is usually a bad choice for security, but makes interop easier
* in this simplified example, in which the ca chain is hardcoded.
* Production code should set a proper ca chain and use REQUIRED. */
ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
ssl_set_ca_chain( &ssl, &cacert, NULL, SERVER_NAME );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio_timeout( &ssl, &server_fd,
net_send, net_recv, net_recv_timeout,
READ_TIMEOUT_MS );
/*
* 4. Handshake
*/
printf( " . Performing the SSL/TLS handshake..." );
fflush( stdout );
do ret = ssl_handshake( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret != 0 )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 5. Verify the server certificate
*/
printf( " . Verifying peer X.509 certificate..." );
/* In real life, we would have used SSL_VERIFY_REQUIRED so that the
* handshake would not succeed if the peer's cert is bad. Even if we used
* SSL_VERIFY_OPTIONAL, we would bail out here if ret != 0 */
if( ( ret = ssl_get_verify_result( &ssl ) ) != 0 )
{
printf( " failed\n" );
if( ( ret & BADCERT_EXPIRED ) != 0 )
printf( " ! server certificate has expired\n" );
if( ( ret & BADCERT_REVOKED ) != 0 )
printf( " ! server certificate has been revoked\n" );
if( ( ret & BADCERT_CN_MISMATCH ) != 0 )
printf( " ! CN mismatch (expected CN=%s)\n", SERVER_NAME );
if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
printf( " ! self-signed or not signed by a trusted CA\n" );
printf( "\n" );
}
else
printf( " ok\n" );
/*
* 6. Write the echo request
*/
send_request:
printf( " > Write to server:" );
fflush( stdout );
len = sizeof( MESSAGE ) - 1;
do ret = ssl_write( &ssl, (unsigned char *) MESSAGE, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret < 0 )
{
printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
len = ret;
printf( " %d bytes written\n\n%s\n\n", len, MESSAGE );
/*
* 7. Read the echo response
*/
printf( " < Read from server:" );
fflush( stdout );
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
do ret = ssl_read( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_NET_TIMEOUT:
printf( " timeout\n\n" );
if( retry_left-- > 0 )
goto send_request;
goto exit;
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
printf( " connection was closed gracefully\n" );
ret = 0;
goto close_notify;
default:
printf( " ssl_read returned -0x%x\n\n", -ret );
goto exit;
}
}
len = ret;
printf( " %d bytes read\n\n%s\n\n", len, buf );
/*
* 8. Done, cleanly close the connection
*/
close_notify:
printf( " . Closing the connection..." );
/* No error checking, the connection might be closed already */
do ret = ssl_close_notify( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_WRITE );
ret = 0;
printf( " done\n" );
/*
* 9. Final clean-ups and exit
*/
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf( "Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( server_fd != -1 )
net_close( server_fd );
x509_crt_free( &cacert );
ssl_free( &ssl );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
/* Shell can not handle large exit numbers -> 1 for errors */
if( ret < 0 )
ret = 1;
return( ret );
}
#endif /* POLARSSL_SSL_CLI_C && POLARSSL_SSL_PROTO_DTLS && POLARSSL_NET_C &&
POLARSSL_ENTROPY_C && POLARSSL_CTR_DRBG_C &&
POLARSSL_X509_CRT_PARSE_C && POLARSSL_RSA_C && POLARSSL_CERTS_C */

410
programs/ssl/dtls_server.c Normal file
View file

@ -0,0 +1,410 @@
/*
* Simple DTLS server demonstration program
*
* Copyright (C) 2014, 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.
*/
#if !defined(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if !defined(POLARSSL_SSL_SRV_C) || !defined(POLARSSL_SSL_PROTO_DTLS) || \
!defined(POLARSSL_SSL_COOKIE_C) || !defined(POLARSSL_NET_C) || \
!defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C) || \
!defined(POLARSSL_X509_CRT_PARSE_C) || !defined(POLARSSL_RSA_C) || \
!defined(POLARSSL_CERTS_C)
#include <stdio.h>
int main( void )
{
printf( "POLARSSL_SSL_SRV_C and/or POLARSSL_SSL_PROTO_DTLS and/or "
"POLARSSL_SSL_COOKIE_C and/or POLARSSL_NET_C and/or "
"POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
"POLARSSL_X509_CRT_PARSE_C and/or POLARSSL_RSA_C and/or "
"POLARSSL_CERTS_C not defined.\n" );
return( 0 );
}
#else
#if defined(_WIN32)
#include <windows.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "polarssl/entropy.h"
#include "polarssl/ctr_drbg.h"
#include "polarssl/certs.h"
#include "polarssl/x509.h"
#include "polarssl/ssl.h"
#include "polarssl/ssl_cookie.h"
#include "polarssl/net.h"
#include "polarssl/error.h"
#include "polarssl/debug.h"
#if defined(POLARSSL_SSL_CACHE_C)
#include "polarssl/ssl_cache.h"
#endif
#define READ_TIMEOUT_MS 10000 /* 5 seconds */
#define DEBUG_LEVEL 0
static void my_debug( void *ctx, int level, const char *str )
{
((void) level);
fprintf( (FILE *) ctx, "%s", str );
fflush( (FILE *) ctx );
}
int main( void )
{
int ret, len;
int listen_fd;
int client_fd = -1;
unsigned char buf[1024];
const char *pers = "dtls_server";
unsigned char client_ip[16] = { 0 };
ssl_cookie_ctx cookie_ctx;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt srvcert;
pk_context pkey;
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_context cache;
#endif
memset( &ssl, 0, sizeof(ssl_context) );
ssl_cookie_init( &cookie_ctx );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_init( &cache );
#endif
x509_crt_init( &srvcert );
pk_init( &pkey );
entropy_init( &entropy );
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( DEBUG_LEVEL );
#endif
/*
* 1. Load the certificates and private RSA key
*/
printf( "\n . 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 )
{
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 )
{
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 )
{
printf( " failed\n ! pk_parse_key returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Setup the "listening" UDP socket
*/
printf( " . Bind on udp/*/4433 ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_UDP ) ) != 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 );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const 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 DTLS 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_transport( &ssl, SSL_TRANSPORT_DATAGRAM );
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 );
if( ( ret = ssl_set_own_cert( &ssl, &srvcert, &pkey ) ) != 0 )
{
printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
if( ( ret = ssl_cookie_setup( &cookie_ctx,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
printf( " failed\n ! ssl_cookie_setup returned %d\n\n", ret );
goto exit;
}
ssl_set_dtls_cookies( &ssl, ssl_cookie_write, ssl_cookie_check,
&cookie_ctx );
printf( " ok\n" );
reset:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_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
*/
client_fd = -1;
printf( " . Waiting for a remote connection ..." );
fflush( stdout );
if( ( ret = net_accept( listen_fd, &client_fd, client_ip ) ) != 0 )
{
printf( " failed\n ! net_accept returned %d\n\n", ret );
goto exit;
}
/* With UDP, bind_fd is hijacked by client_fd, so bind a new one */
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_UDP ) ) != 0 )
{
printf( " failed\n ! net_bind returned -0x%x\n\n", -ret );
goto exit;
}
/* For HelloVerifyRequest cookies */
if( ( ret = ssl_set_client_transport_id( &ssl, client_ip,
sizeof( client_ip ) ) ) != 0 )
{
printf( " failed\n ! "
"ssl_set_client_tranport_id() returned -0x%x\n\n", -ret );
goto exit;
}
ssl_set_bio_timeout( &ssl, &client_fd,
net_send, net_recv, net_recv_timeout,
READ_TIMEOUT_MS );
printf( " ok\n" );
/*
* 5. Handshake
*/
printf( " . Performing the DTLS handshake..." );
fflush( stdout );
do ret = ssl_handshake( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret == POLARSSL_ERR_SSL_HELLO_VERIFY_REQUIRED )
{
printf( " hello verification requested\n" );
ret = 0;
goto reset;
}
else if( ret != 0 )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
goto reset;
}
printf( " ok\n" );
/*
* 6. Read the echo Request
*/
printf( " < Read from client:" );
fflush( stdout );
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
do ret = ssl_read( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_NET_TIMEOUT:
printf( " timeout\n\n" );
goto reset;
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
printf( " connection was closed gracefully\n" );
ret = 0;
goto close_notify;
default:
printf( " ssl_read returned -0x%x\n\n", -ret );
goto reset;
}
}
len = ret;
printf( " %d bytes read\n\n%s\n\n", len, buf );
/*
* 7. Write the 200 Response
*/
printf( " > Write to client:" );
fflush( stdout );
do ret = ssl_write( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret < 0 )
{
printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
len = ret;
printf( " %d bytes written\n\n%s\n\n", len, buf );
/*
* 8. Done, cleanly close the connection
*/
close_notify:
printf( " . Closing the connection..." );
/* No error checking, the connection might be closed already */
do ret = ssl_close_notify( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_WRITE );
ret = 0;
printf( " done\n" );
goto reset;
/*
* Final clean-ups and exit
*/
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_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 );
x509_crt_free( &srvcert );
pk_free( &pkey );
ssl_free( &ssl );
ssl_cookie_free( &cookie_ctx );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_free( &cache );
#endif
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
/* Shell can not handle large exit numbers -> 1 for errors */
if( ret < 0 )
ret = 1;
return( ret );
}
#endif /* POLARSSL_SSL_SRV_C && POLARSSL_SSL_PROTO_DTLS &&
POLARSSL_SSL_COOKIE_C && POLARSSL_NET_C && POLARSSL_ENTROPY_C &&
POLARSSL_CTR_DRBG_C && POLARSSL_X509_CRT_PARSE_C && POLARSSL_RSA_C
&& POLARSSL_CERTS_C */

5
programs/ssl/ssl_client2.c
View file

@ -349,7 +349,7 @@ static int my_verify( void *data, x509_crt *crt, int depth, int *flags )
int main( int argc, char *argv[] )
{
int ret = 0, len, tail_len, server_fd, i, written, frags;
int ret = 0, len, tail_len, server_fd, i, written, frags, retry_left;
unsigned char buf[SSL_MAX_CONTENT_LEN + 1];
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[POLARSSL_PSK_MAX_LEN];
@ -1181,6 +1181,7 @@ int main( int argc, char *argv[] )
/*
* 6. Write the GET request
*/
retry_left = opt.max_resend;
send_request:
printf( " > Write to server:" );
fflush( stdout );
@ -1317,7 +1318,7 @@ send_request:
{
case POLARSSL_ERR_NET_TIMEOUT:
printf( " timeout\n" );
if( opt.max_resend-- > 0 )
if( retry_left-- > 0 )
goto send_request;
goto exit;

2
programs/ssl/ssl_server2.c
View file

@ -1436,7 +1436,7 @@ int main( int argc, char *argv[] )
if( ( ret = ssl_cookie_setup( &cookie_ctx,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
printf( " failed\n ! ssl_setup_hvr_key returned %d\n\n", ret );
printf( " failed\n ! ssl_cookie_setup returned %d\n\n", ret );
goto exit;
}