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Enhance output of udp_proxy

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Manuel Pégourié-Gonnard 2014-09-06 08:07:45 +02:00 committed by Paul Bakker
parent be9eb877f7
commit 44d5e63e6a
1 changed files with 57 additions and 19 deletions
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76
programs/test/udp_proxy.c
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@ -69,17 +69,6 @@ int main( void )
#define DFL_LISTEN_ADDR "localhost"
#define DFL_LISTEN_PORT 5556
/*
* global options
*/
struct options
{
const char *server_addr; /* address to forward packets to */
int server_port; /* port to forward packets to */
const char *listen_addr; /* address for accepting client connections */
int listen_port; /* port for accepting client connections */
} opt;
#define USAGE \
"\n usage: udp_proxy param=<>...\n" \
"\n acceptable parameters:\n" \
@ -89,8 +78,24 @@ struct options
" listen_port=%%d default: 4433\n" \
"\n"
static void exit_usage( void )
/*
* global options
*/
static struct options
{
const char *server_addr; /* address to forward packets to */
int server_port; /* port to forward packets to */
const char *listen_addr; /* address for accepting client connections */
int listen_port; /* port for accepting client connections */
} opt;
static void exit_usage( const char *name, const char *value )
{
if( value == NULL )
printf( " unknown option: %s\n", name );
else
printf( " option %s: illegal value: %s\n", name, value );
printf( USAGE );
exit( 1 );
}
@ -109,7 +114,7 @@ static void get_options( int argc, char *argv[] )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
exit_usage();
exit_usage( p, NULL );
*q++ = '\0';
if( strcmp( p, "server_addr" ) == 0 )
@ -118,7 +123,7 @@ static void get_options( int argc, char *argv[] )
{
opt.server_port = atoi( q );
if( opt.server_port < 1 || opt.server_port > 65535 )
exit_usage();
exit_usage( p, q );
}
else if( strcmp( p, "listen_addr" ) == 0 )
opt.listen_addr = q;
@ -126,10 +131,41 @@ static void get_options( int argc, char *argv[] )
{
opt.listen_port = atoi( q );
if( opt.listen_port < 1 || opt.listen_port > 65535 )
exit_usage();
exit_usage( p, q );
}
else
exit_usage();
exit_usage( p, NULL );
}
}
static const char *msg_type( unsigned char *msg, size_t len )
{
if( len < 1 ) return( "Invalid" );
switch( msg[0] )
{
case SSL_MSG_CHANGE_CIPHER_SPEC: return( "ChangeCipherSpec" );
case SSL_MSG_ALERT: return( "Alert" );
case SSL_MSG_APPLICATION_DATA: return( "ApplicationData" );
case SSL_MSG_HANDSHAKE: break; /* See below */
default: return( "Unknown" );
}
if( len < 13 ) return( "Invalid handshake" );
switch( msg[13] )
{
case SSL_HS_HELLO_REQUEST: return( "HelloRequest" );
case SSL_HS_CLIENT_HELLO: return( "ClientHello" );
case SSL_HS_SERVER_HELLO: return( "ServerHello" );
case SSL_HS_HELLO_VERIFY_REQUEST: return( "HelloVerifyRequest" );
case SSL_HS_NEW_SESSION_TICKET: return( "NewSessionTicket" );
case SSL_HS_CERTIFICATE: return( "Certificate" );
case SSL_HS_SERVER_KEY_EXCHANGE: return( "ServerKeyExchange" );
case SSL_HS_CERTIFICATE_REQUEST: return( "CertificateRequest" );
case SSL_HS_SERVER_HELLO_DONE: return( "ServerHelloDone" );
case SSL_HS_CERTIFICATE_VERIFY: return( "CertificateVerify" );
case SSL_HS_CLIENT_KEY_EXCHANGE: return( "ClientKeyExchange" );
case SSL_HS_FINISHED: return( "Finished" );
default: return( "Unkown handshake" );
}
}
@ -145,10 +181,12 @@ int handle_message( const char *way, int dst, int src )
return( ret );
}
printf( " .. %s: %d bytes forwarded\n", way, ret );
len = ret;
type = msg_type( buf, len );
printf( " > %s: %s (%u bytes)\n", way, type, len );
len = (size_t) ret;
printf( " < %s: %s (%u bytes): forwarded\n", way, type, len );
if( ( ret = net_send( &dst, buf, len ) ) <= 0 )
{
printf( " ! net_send returned %d\n", ret );
@ -173,7 +211,7 @@ int main( int argc, char *argv[] )
get_options( argc, argv );
/*
* 0. Connect to the server
* 0. "Connect" to the server
*/
printf( " . Connect to server on UDP/%s/%d ...",
opt.server_addr, opt.server_port );