static CK_RV prvRsaKeyAttParse()

in source/portable/mbedtls/core_pkcs11_mbedtls.c [729:809]
58 lines of code
19 McCabe index (conditional complexity)

static CK_RV prvRsaKeyAttParse( const CK_ATTRIBUTE * pxAttribute,
                                mbedtls_rsa_context * pxRsaContext,
                                CK_BBOOL xIsPrivate )
{
    CK_RV xResult = CKR_OK;
    /* See explanation in prvCheckValidSessionAndModule for this exception. */
    /* coverity[misra_c_2012_rule_10_5_violation] */
    CK_BBOOL xBool = ( CK_BBOOL ) CK_FALSE;

    switch( pxAttribute->type )
    {
        case ( CKA_CLASS ):
        case ( CKA_KEY_TYPE ):
        case ( CKA_LABEL ):
            /* Do nothing. These values were parsed previously. */
            break;

        case ( CKA_TOKEN ):

            if( pxAttribute->ulValueLen == sizeof( CK_BBOOL ) )
            {
                ( void ) memcpy( &xBool, pxAttribute->pValue, sizeof( CK_BBOOL ) );
            }

            /* See explanation in prvCheckValidSessionAndModule for this exception. */
            /* coverity[misra_c_2012_rule_10_5_violation] */
            if( xBool != ( CK_BBOOL ) CK_TRUE )
            {
                xResult = CKR_ATTRIBUTE_VALUE_INVALID;
            }

            break;

        case ( CKA_VERIFY ):

            /* See explanation in prvCheckValidSessionAndModule for this exception. */
            /* coverity[misra_c_2012_rule_10_5_violation] */
            if( xIsPrivate == ( CK_BBOOL ) CK_FALSE )
            {
                xResult = prvRsaPubKeyAttParse( pxAttribute );
            }
            else
            {
                xResult = CKR_ATTRIBUTE_VALUE_INVALID;
            }

            break;

        case ( CKA_SIGN ):

            /* See explanation in prvCheckValidSessionAndModule for this exception. */
            /* coverity[misra_c_2012_rule_10_5_violation] */
            if( xIsPrivate == ( CK_BBOOL ) CK_TRUE )
            {
                xResult = prvRsaPrivKeyAttParse( pxAttribute );
            }
            else
            {
                xResult = CKR_ATTRIBUTE_VALUE_INVALID;
            }

            break;

        case ( CKA_MODULUS ):
        case ( CKA_PUBLIC_EXPONENT ):
        case ( CKA_PRIME_1 ):
        case ( CKA_PRIME_2 ):
        case ( CKA_PRIVATE_EXPONENT ):
        case ( CKA_EXPONENT_1 ):
        case ( CKA_EXPONENT_2 ):
        case ( CKA_COEFFICIENT ):
            xResult = prvRsaContextParse( pxAttribute, pxRsaContext );
            break;

        default:
            xResult = CKR_ATTRIBUTE_TYPE_INVALID;
            break;
    }

    return xResult;
}