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Add more instances of Byte Reading Macros

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added more uses of byte reading macros where appropriate.
changed the positioning of some brackets for consitancy in
coding style

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
This commit is contained in:
Joe Subbiani 2021-08-18 12:06:57 +01:00
parent b763ba4198
commit a724ef9d11
2 changed files with 15 additions and 13 deletions
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4
library/ssl_cli.c
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@ -569,8 +569,8 @@ static int ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_CHK_BUF_PTR( p, end, 4 ); MBEDTLS_SSL_CHK_BUF_PTR( p, end, 4 );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); *p++ = MBEDTLS_BYTE_1( MBEDTLS_TLS_EXT_TRUNCATED_HMAC );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); *p++ = MBEDTLS_BYTE_0( MBEDTLS_TLS_EXT_TRUNCATED_HMAC );
*p++ = 0x00; *p++ = 0x00;
*p++ = 0x00; *p++ = 0x00;

22
library/ssl_srv.c
View File

@ -1322,8 +1322,8 @@ static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl )
for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 ) for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 )
{ {
if( p[0] == 0 && if( p[0] == 0 &&
p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && p[1] == MBEDTLS_BYTE_1( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) &&
p[2] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) p[2] == MBEDTLS_BYTE_0( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) )
{ {
MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) ); MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) );
@ -1354,8 +1354,8 @@ static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl )
#endif #endif
{ {
if( p[0] != 0 || if( p[0] != 0 ||
p[1] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) || p[1] != MBEDTLS_BYTE_1( ciphersuites[i] ) ||
p[2] != ( ( ciphersuites[i] ) & 0xFF ) ) p[2] != MBEDTLS_BYTE_0( ciphersuites[i] ) )
continue; continue;
got_common_suite = 1; got_common_suite = 1;
@ -2086,8 +2086,8 @@ read_record_header:
#if defined(MBEDTLS_SSL_FALLBACK_SCSV) #if defined(MBEDTLS_SSL_FALLBACK_SCSV)
for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 ) for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
{ {
if( p[0] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && if( p[0] == MBEDTLS_BYTE_1( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) &&
p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) p[1] == MBEDTLS_BYTE_0( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) )
{ {
MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) ); MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) );
@ -2290,8 +2290,8 @@ static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) ); MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); *p++ = MBEDTLS_BYTE_1( MBEDTLS_TLS_EXT_TRUNCATED_HMAC );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); *p++ = MBEDTLS_BYTE_0( MBEDTLS_TLS_EXT_TRUNCATED_HMAC );
*p++ = 0x00; *p++ = 0x00;
*p++ = 0x00; *p++ = 0x00;
@ -3871,12 +3871,14 @@ static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
defined(MBEDTLS_SSL_PROTO_TLS1_2) defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{ {
if ( p + 2 > end ) { if ( p + 2 > end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
} }
if( *p++ != MBEDTLS_BYTE_1( len ) || if( *p++ != MBEDTLS_BYTE_1( len ) ||
*p++ != MBEDTLS_BYTE_0( len ) ){ *p++ != MBEDTLS_BYTE_0( len ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
} }