firewall-manager

This library allow:

• Enable/Disable the firewall
• Authorize an application
• Open ports
• Add new Rules

Usage

// initialize a FirewallCom
var firewall = new FirewallCom();

To help us to show some of the funcitonalities with create a method to display the fields of the type of generic objects

private static void DisplayTypeFields<T>(IEnumerable<T> collection)
{
    foreach (var item in collection)
    {
        foreach (var propertyInfo in item.GetType().GetFields())
            Console.WriteLine("{0}: {1}", propertyInfo.Name, propertyInfo.GetValue(item));
        Console.WriteLine();
    }
}

Authorized App

List Authorized Apps

DisplayTypeFields(firewall.GetAuthorizeApps());

Print the list of authorized apps like

/*
Name: node.exe
IpVersion: Any
Enabled: True
Scope: All
RemoteAddresses: *
ProcessImageFileName: C:\users\alexander\appdata\roaming\nvm\v7.9.0\node.exe

Name: python
IpVersion: Any
Enabled: True
Scope: All
RemoteAddresses: *
ProcessImageFileName: C:\python27\python.exe

...
*/

Authorize an App

firewall.AddAuthorizeApp(new AuthorizeApp("Notepad", @"C:\Windows\Notepad.exe"));

This authorize the Notepad app. If you list the authorized apps you should get

/*
Name: Notepad
IpVersion: Any
Enabled: False
Scope: All
RemoteAddresses: *
ProcessImageFileName: C:\Windows\notepad.exe

Name: node.exe
IpVersion: Any
Enabled: True
Scope: All
RemoteAddresses: *
ProcessImageFileName: C:\users\alexander\appdata\roaming\nvm\v7.9.0\node.exe

Name: python
IpVersion: Any
Enabled: True
Scope: All
RemoteAddresses: *
ProcessImageFileName: C:\python27\python.exe

...
*/

Unauthorize an App

firewall.RemoveAuthorizeApp("Notepad");

To unauthorized the recent notepad app.

Open Ports

List Open ports

DisplayTypeFields(firewall.GetOpenPorts());

Print the list of open ports like this:

/*
Name: OpenSSH
Port: 22
IpVersion: Any
Scope: All
ProtocolPort: Tcp
Enabled: True
RemoteAddresses: *

...
*/

Open a port

firewall.AddGloballyPort(new OpenPort("Custom Port", 2882));

This open the port 2882. If you list the open ports you should get

/*
Name: Custom Port
Port: 2882
IpVersion: Any
Scope: All
ProtocolPort: Tcp
Enabled: False
RemoteAddresses: *

Name: OpenSSH
Port: 22
IpVersion: Any
Scope: All
ProtocolPort: Tcp
Enabled: True
RemoteAddresses: *

...
*/

Close the port

firewall.RemoveOpenPort("Custom Port");

To close the recent Custom Port.

Advanced security

Enable / Disable Firewall

const ProfileType profileType = ProfileType.Domain;
Console.WriteLine("firewall enable: " + firewall.GetFirewallEnable(profileType));
Console.ReadKey();
firewall.SetFirewallEnable(profileType, !firewall.GetFirewallEnable(profileType));  // change the firewall status
Console.WriteLine("firewall enable: " + firewall.GetFirewallEnable(profileType));
Console.ReadKey();
firewall.SetFirewallEnable(profileType, !firewall.GetFirewallEnable(profileType));  // change the firewall status
Console.WriteLine("firewall enable: " + firewall.GetFirewallEnable(profileType));
Console.ReadKey();

If you run the code above you should get

/*
firewall enable: True
firewall enable: False
firewall enable: True
*/

List Firewall Rules

DisplayTypeFields(firewall.GetRules());

Print the list of rules like this:

/*
Action: Allow
ApplicationName: C:\Windows\notepad.exe
Description:
Direction: In
EdgeTraversal: False
Enabled: False
Grouping:
IcmpTypesAndCodes:
Interfaces:
InterfaceTypes: All
LocalAddresses: *
LocalPorts: *
Name: Notepad
Profiles: Public
Protocol: Udp
RemoteAddresses: *
RemotePorts: *
ServiceName:

...
*/

Add a new Rule

firewall.AddRule(new Rule(name: "Custom Rule", action: FirewallManager.Action.Allow));

This add a rule named Custom Rule. If you list the current rules you should get

/*
Action: Allow
ApplicationName:
Description:
Direction: In
EdgeTraversal: False
Enabled: False
Grouping:
IcmpTypesAndCodes:
Interfaces:
InterfaceTypes: All
LocalAddresses: *
LocalPorts:
Name: Custom Rule
Profiles: Domain
Protocol: Any
RemoteAddresses: *
RemotePorts:
ServiceName:

...
*/

Remove a rule

firewall.RemoveRule("Custom Rule");

To remove the recent Custom Rule.