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Use mbedtls_test_unhexify in programs

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Use mbedtls_test_unhexify in programs instead of ad-hoc
implementations.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-06-18 10:36:26 +02:00
parent a0c2539c4c
commit 7d8661618b
2 changed files with 21 additions and 116 deletions
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77
programs/ssl/ssl_client2.c
View File

@ -74,6 +74,8 @@ int main( void )
#include "mbedtls/psa_util.h"
#endif
#include <test/helpers.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -1016,45 +1018,6 @@ int idle( mbedtls_net_context *fd,
return( 0 );
}
/* Unhexify `hex` into `dst`. `dst` must have
* size at least `strlen( hex ) / 2`. */
int unhexify( char const *hex, unsigned char *dst )
{
unsigned char c;
size_t j;
size_t len = strlen( hex );
if( len % 2 != 0 )
return( -1 );
for( j = 0; j < len; j += 2 )
{
c = hex[j];
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
return( -1 );
dst[ j / 2 ] = c << 4;
c = hex[j + 1];
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
return( -1 );
dst[ j / 2 ] |= c;
}
return( 0 );
}
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
int report_cid_usage( mbedtls_ssl_context *ssl,
const char *additional_description )
@ -1785,16 +1748,10 @@ int main( int argc, char *argv[] )
*/
if( strlen( opt.psk ) )
{
psk_len = strlen( opt.psk ) / 2;
if( psk_len > sizeof( psk ) )
if( mbedtls_test_unhexify( psk, sizeof( psk ),
opt.psk, &psk_len ) != 0 )
{
mbedtls_printf( "pre-shared key too long\n" );
goto exit;
}
if( unhexify( opt.psk, psk ) != 0 )
{
mbedtls_printf( "pre-shared key not valid hex\n" );
mbedtls_printf( "pre-shared key not valid\n" );
goto exit;
}
}
@ -1896,16 +1853,10 @@ int main( int argc, char *argv[] )
}
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
cid_len = strlen( opt.cid_val ) / 2;
if( cid_len > sizeof( cid ) )
if( mbedtls_test_unhexify( cid, sizeof( cid ),
opt.cid_val, &cid_len ) != 0 )
{
mbedtls_printf( "CID too long\n" );
goto exit;
}
if( unhexify( opt.cid_val, cid ) != 0 )
{
mbedtls_printf( "CID not valid hex\n" );
mbedtls_printf( "CID not valid\n" );
goto exit;
}
@ -1916,16 +1867,10 @@ int main( int argc, char *argv[] )
if( opt.cid_val_renego == DFL_CID_VALUE_RENEGO )
opt.cid_val_renego = opt.cid_val;
cid_renego_len = strlen( opt.cid_val_renego ) / 2;
if( cid_renego_len > sizeof( cid_renego ) )
if( mbedtls_test_unhexify( cid_renego, sizeof( cid_renego ),
opt.cid_val_renego, &cid_renego_len ) != 0 )
{
mbedtls_printf( "CID too long\n" );
goto exit;
}
if( unhexify( opt.cid_val_renego, cid_renego ) != 0 )
{
mbedtls_printf( "CID not valid hex\n" );
mbedtls_printf( "CID not valid\n" );
goto exit;
}
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */

60
programs/ssl/ssl_server2.c
View File

@ -70,6 +70,8 @@ int main( void )
#include "mbedtls/psa_util.h"
#endif
#include <test/helpers.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -1202,52 +1204,6 @@ int sni_callback( void *p_info, mbedtls_ssl_context *ssl,
#endif /* SNI_OPTION */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) || \
defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
#define HEX2NUM( c ) \
do \
{ \
if( (c) >= '0' && (c) <= '9' ) \
(c) -= '0'; \
else if( (c) >= 'a' && (c) <= 'f' ) \
(c) -= 'a' - 10; \
else if( (c) >= 'A' && (c) <= 'F' ) \
(c) -= 'A' - 10; \
else \
return( -1 ); \
} while( 0 )
/*
* Convert a hex string to bytes.
* Return 0 on success, -1 on error.
*/
int unhexify( unsigned char *output, const char *input, size_t *olen )
{
unsigned char c;
size_t j;
*olen = strlen( input );
if( *olen % 2 != 0 || *olen / 2 > MBEDTLS_PSK_MAX_LEN )
return( -1 );
*olen /= 2;
for( j = 0; j < *olen * 2; j += 2 )
{
c = input[j];
HEX2NUM( c );
output[ j / 2 ] = c << 4;
c = input[j + 1];
HEX2NUM( c );
output[ j / 2 ] |= c;
}
return( 0 );
}
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
typedef struct _psk_entry psk_entry;
@ -1319,7 +1275,8 @@ psk_entry *psk_parse( char *psk_string )
GET_ITEM( new->name );
GET_ITEM( key_hex );
if( unhexify( new->key, key_hex, &new->key_len ) != 0 )
if( mbedtls_test_unhexify( new->key, MBEDTLS_PSK_MAX_LEN,
key_hex, &new->key_len ) != 0 )
goto error;
new->next = cur;
@ -2632,7 +2589,8 @@ int main( int argc, char *argv[] )
}
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
if( unhexify( cid, opt.cid_val, &cid_len ) != 0 )
if( mbedtls_test_unhexify( cid, sizeof( cid ),
opt.cid_val, &cid_len ) != 0 )
{
mbedtls_printf( "CID not valid hex\n" );
goto exit;
@ -2645,7 +2603,8 @@ int main( int argc, char *argv[] )
if( opt.cid_val_renego == DFL_CID_VALUE_RENEGO )
opt.cid_val_renego = opt.cid_val;
if( unhexify( cid_renego, opt.cid_val_renego, &cid_renego_len ) != 0 )
if( mbedtls_test_unhexify( cid_renego, sizeof( cid_renego ),
opt.cid_val_renego, &cid_renego_len ) != 0 )
{
mbedtls_printf( "CID not valid hex\n" );
goto exit;
@ -2656,7 +2615,8 @@ int main( int argc, char *argv[] )
/*
* Unhexify the pre-shared key and parse the list if any given
*/
if( unhexify( psk, opt.psk, &psk_len ) != 0 )
if( mbedtls_test_unhexify( psk, sizeof( psk ),
opt.psk, &psk_len ) != 0 )
{
mbedtls_printf( "pre-shared key not valid hex\n" );
goto exit;