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If you are using this, you will not be affected if different parser is used in the future. It completely hides all the details of particular XML parser interface, exporting outside DOM tree. However it could be used to write other XML files, like GUI Preferences, etc. User normaly would not need to use it to access network database objects we provide high level C++ API for that. There is special facility for performing automatic data format upgrades using XSL Transformations. XML Library provides classes for loading and saving XML files. It is implemented on top of OpenSSL library. PKI API contains classes for managing X.509 certificates and RSA keys. Given seed host which responds to SNMP queries, it attempts to find as much hosts as possible and for each found host extracts all relevant network settings. SNMP Crawler Built on top of SNMP classes, this is sophisticated SNMP crawler. It makes use of NET SNMP (formerly UCD SNMP) library. All queries return (when possible) information using network database objects. Special classes exists for several high level queries (like extracting interfaces information, ARP tables, routing tables). SNMP This module provides simple C++ client API. It makes use of BIND library (version 8 and 9). DNS This module is collection of classes which allows user to resolve hosts (single and bulk), transfer and parse zone. There are several utility modules which are part of the library (currently in fwbuilder module, but some might move to separate modules in the future): 1. fwbd Client library used to connect to Firewall Builder Daemon. Provides classes which allow to easily construct Policy Compilers for new platforms. fwcompiler Policy Compiler developer toolkit. fwbuilder Base API providing access to network database objects as well as some utility classes. All API classes are organized into several sub modules, enclosed in separate namespaces: 1. API is packaged as independent package: libfwbuilder which could be used by third party developers. Let us look closer at each component: API All access to Network Database is done via C++ API. In the future it is possible to map it to relational database schema. Currently NetworkĢ Object Database is stored in XML file according to Firewall Builder Extensible Markup Language (XML) Document Type Definition (DTD).
#FIREWALL BUILDER FOR WINDOWS 2000 PLUS#
For example for a network these are address and netmask for a host these are address and OS with its properties a firewall is built on top of host and therefore includes all its properties, plus its Policy, NAT rules etc. For each object it stores information about its network related properties. It holds information about hosts, routers, networks, firewalls. Modules Figure 1 shows current architecture: The core of it is Network Object Database: centralized storage of information about network objects. 1 Firewall Builder Architecture Overview Vadim Zaliva Vadim Kurland Abstract This document gives brief, high level overview of existing Firewall Builder architecture.