DSCResources/DSC_NetBios/DSC_NetBios.psm1
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$modulePath = Join-Path -Path (Split-Path -Path (Split-Path -Path $PSScriptRoot -Parent) -Parent) -ChildPath 'Modules' # Import the Networking Common Modules Import-Module -Name (Join-Path -Path $modulePath ` -ChildPath (Join-Path -Path 'NetworkingDsc.Common' ` -ChildPath 'NetworkingDsc.Common.psm1')) Import-Module -Name (Join-Path -Path $modulePath -ChildPath 'DscResource.Common') # Import Localization Strings $script:localizedData = Get-LocalizedData -DefaultUICulture 'en-US' # Base registry key path for NetBios settings $script:hklmInterfacesPath = 'HKLM:\SYSTEM\CurrentControlSet\Services\NetBT\Parameters\Interfaces' #region check NetBiosSetting enum loaded, if not load try { [void][System.Reflection.Assembly]::GetAssembly([NetBiosSetting]) } catch { Add-Type -TypeDefinition @' public enum NetBiosSetting { Default, Enable, Disable } '@ } #endregion <# .SYNOPSIS Returns the current state of the Net Bios on an interface. .PARAMETER InterfaceAlias Specifies the alias of a network interface. Supports the use of '*' and '%'. .PARAMETER Setting Specifies if NetBIOS should be enabled or disabled or obtained from the DHCP server (Default). If static IP, Enable NetBIOS. Parameter value is ignored. #> function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('Default', 'Enable', 'Disable')] [System.String] $Setting ) Write-Verbose -Message ($script:localizedData.GettingNetBiosSettingMessage -f $InterfaceAlias) $win32NetworkAdapterFilter = Format-Win32NetworkAdapterFilterByNetConnectionId -InterfaceAlias $InterfaceAlias $netAdapter = Get-CimInstance ` -ClassName Win32_NetworkAdapter ` -Filter $win32NetworkAdapterFilter if ($netAdapter) { Write-Verbose -Message ($script:localizedData.InterfaceDetectedMessage -f $InterfaceAlias, ($netAdapter.InterfaceIndex -Join ',')) } else { New-InvalidOperationException ` -Message ($script:localizedData.InterfaceNotFoundError -f $InterfaceAlias) } <# If a wildcard was specified for the InterfaceAlias then more than one adapter may be returned. If more than one adapter is returned then the NetBios setting value will be evaluated for all matching adapters. If there is a mismatch, a wrong value is returned to signify the resource is not in the desired state. #> if ($netAdapter -is [System.Array]) { [System.String[]] $settingResults = @() foreach ($netAdapterItem in $netAdapter) { $settingResults += Get-NetAdapterNetbiosOptionsFromRegistry -NetworkAdapterGUID $netAdapterItem.GUID -Setting $Setting Write-Verbose -Message ($script:localizedData.CurrentNetBiosSettingMessage -f $netAdapterItem.NetConnectionID, $settingResults[-1]) } [System.String[]] $wrongSettings = $settingResults | Where-Object -FilterScript { $_ -ne $Setting } if (-not [System.String]::IsNullOrEmpty($wrongSettings)) { $Setting = $wrongSettings[0] } } else { $Setting = Get-NetAdapterNetbiosOptionsFromRegistry -NetworkAdapterGUID $netAdapter.GUID -Setting $Setting } Write-Verbose -Message ($script:localizedData.CurrentNetBiosSettingMessage -f $InterfaceAlias, $Setting) return @{ InterfaceAlias = $InterfaceAlias Setting = $Setting } } <# .SYNOPSIS Sets the state of the Net Bios on an interface. .PARAMETER InterfaceAlias Specifies the alias of a network interface. Supports the use of '*' and '%'. .PARAMETER Setting Specifies if NetBIOS should be enabled or disabled or obtained from the DHCP server (Default). If static IP, Enable NetBIOS. #> function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('Default', 'Enable', 'Disable')] [System.String] $Setting ) Write-Verbose -Message ($script:localizedData.SettingNetBiosSettingMessage -f $InterfaceAlias) $win32NetworkAdapterFilter = Format-Win32NetworkAdapterFilterByNetConnectionId -InterfaceAlias $InterfaceAlias $netAdapter = Get-CimInstance ` -ClassName Win32_NetworkAdapter ` -Filter $win32NetworkAdapterFilter if ($netAdapter) { Write-Verbose -Message ($script:localizedData.InterfaceDetectedMessage -f $InterfaceAlias, ($netAdapter.InterfaceIndex -Join ',')) } else { New-InvalidOperationException ` -Message ($script:localizedData.InterfaceNotFoundError -f $InterfaceAlias) } if ($netAdapter -is [System.Array]) { foreach ($netAdapterItem in $netAdapter) { $currentValue = Get-NetAdapterNetbiosOptionsFromRegistry -NetworkAdapterGUID $netAdapterItem.GUID -Setting $Setting # Only make changes if necessary if ($currentValue -ne $Setting) { Write-Verbose -Message ($script:localizedData.SetNetBiosMessage -f $netAdapterItem.NetConnectionID, $Setting) $netAdapterConfig = $netAdapterItem | Get-CimAssociatedInstance ` -ResultClassName Win32_NetworkAdapterConfiguration ` -ErrorAction Stop Set-NetAdapterNetbiosOptions -NetworkAdapterObject $netAdapterConfig ` -InterfaceAlias $netAdapterItem.NetConnectionID ` -Setting $Setting } } } else { Write-Verbose -Message ($script:localizedData.SetNetBiosMessage -f $netAdapter.NetConnectionID, $Setting) $netAdapterConfig = $netAdapter | Get-CimAssociatedInstance ` -ResultClassName Win32_NetworkAdapterConfiguration ` -ErrorAction Stop Set-NetAdapterNetbiosOptions -NetworkAdapterObject $netAdapterConfig ` -InterfaceAlias $netAdapter.NetConnectionID ` -Setting $Setting } } <# .SYNOPSIS Tests the current state the Net Bios on an interface. .PARAMETER InterfaceAlias Specifies the alias of a network interface. Supports the use of '*' and '%'. .PARAMETER Setting Specifies if NetBIOS should be enabled or disabled or obtained from the DHCP server (Default). If static IP, Enable NetBIOS. #> function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('Default', 'Enable', 'Disable')] [System.String] $Setting ) Write-Verbose -Message ($script:localizedData.TestingNetBiosSettingMessage -f $InterfaceAlias) $currentState = Get-TargetResource @PSBoundParameters return Test-DscParameterState -CurrentValues $currentState -DesiredValues $PSBoundParameters } <# .SYNOPSIS Returns the NetbiosOptions value for a network adapter. .DESCRIPTION Most reliable method of getting this value since network adapters can be in any number of states (e.g. disabled, disconnected) which can cause Win32 classes to not report the value. .PARAMETER NetworkAdapterGUID Network Adapter GUID .PARAMETER Setting Setting value for this resource which should be one of the following: Default, Enable, Disable #> function Get-NetAdapterNetbiosOptionsFromRegistry { [OutputType([System.String])] [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidatePattern("^\{[a-zA-Z0-9]{8}\-[a-zA-Z0-9]{4}\-[a-zA-Z0-9]{4}\-[a-zA-Z0-9]{4}\-[a-zA-Z0-9]{12}\}$")] [System.String] $NetworkAdapterGUID, [Parameter(Mandatory = $true)] [ValidateSet('Default','Enable','Disable')] [System.String] $Setting ) # Changing ErrorActionPreference variable since the switch -ErrorAction isn't supported. $currentErrorActionPreference = $ErrorActionPreference $ErrorActionPreference = 'SilentlyContinue' $registryNetbiosOptions = Get-ItemPropertyValue -Name 'NetbiosOptions' ` -Path "$($script:hklmInterfacesPath)\Tcpip_$($NetworkAdapterGUID)" $ErrorActionPreference = $currentErrorActionPreference if ($null -eq $registryNetbiosOptions) { $registryNetbiosOptions = 0 } switch ($registryNetbiosOptions) { 0 { return 'Default' } 1 { return 'Enable' } 2 { return 'Disable' } default { # Unknown value. Returning invalid setting to trigger Set-TargetResource [System.String[]] $invalidSetting = 'Default','Enable','Disable' | Where-Object -FilterScript { $_ -ne $Setting } return $invalidSetting[0] } } } # end function Get-NetAdapterNetbiosOptionsFromRegistry <# .SYNOPSIS Configures Netbios on a Network Adapter. .DESCRIPTION Uses two methods for configuring Netbios on a Network Adapter. If an interface is IPEnabled, the CIMMethod will be invoked. Otherwise the registry key is configured as this will satisfy network adapters being in alternative states such as disabled or disconnected. .PARAMETER NetworkAdapterObject Network Adapter Win32_NetworkAdapterConfiguration Object .PARAMETER InterfaceAlias Name of the network adapter being configured. Example: Ethernet .PARAMETER Setting Setting value for this resource which should be one of the following: Default, Enable, Disable #> function Set-NetAdapterNetbiosOptions { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.Object] $NetworkAdapterObject, [Parameter(Mandatory = $true)] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('Default','Enable','Disable')] [System.String] $Setting ) Write-Verbose -Message ($script:localizedData.SetNetBiosMessage -f $InterfaceAlias, $Setting) # Only IPEnabled interfaces can be configured via SetTcpipNetbios method. if ($NetworkAdapterObject.IPEnabled) { $result = $NetworkAdapterObject | Invoke-CimMethod ` -MethodName SetTcpipNetbios ` -ErrorAction Stop ` -Arguments @{ TcpipNetbiosOptions = [uint32][NetBiosSetting]::$Setting.value__ } if ($result.ReturnValue -ne 0) { New-InvalidOperationException ` -Message ($script:localizedData.FailedUpdatingNetBiosError -f $InterfaceAlias, $result.ReturnValue, $Setting) } } else { <# IPEnabled=$false can only be configured via registry this satisfies disabled and disconnected states #> $setItemPropertyParameters = @{ Path = "$($script:hklmInterfacesPath)\Tcpip_$($NetworkAdapterObject.SettingID)" Name = 'NetbiosOptions' Value = [NetBiosSetting]::$Setting.value__ } $null = Set-ItemProperty @setItemPropertyParameters } } # end function Set-NetAdapterNetbiosOptions Export-ModuleMember -Function *-TargetResource |