DSCResources/MSFT_DhcpClient/MSFT_DhcpClient.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 the Networking Resource Helper Module Import-Module -Name (Join-Path -Path $modulePath ` -ChildPath (Join-Path -Path 'NetworkingDsc.ResourceHelper' ` -ChildPath 'NetworkingDsc.ResourceHelper.psm1')) # Import Localization Strings $LocalizedData = Get-LocalizedData ` -ResourceName 'MSFT_DhcpClient' ` -ResourcePath (Split-Path -Parent $Script:MyInvocation.MyCommand.Path) <# .SYNOPSIS Returns the current state of the DHCP Client for an interface. .PARAMETER InterfaceAlias Alias of the network interface for which the DHCP Client is set. .PARAMETER AddressFamily IP address family. .PARAMETER State The desired state of the DHCP Client. #> function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('IPv4', 'IPv6')] [System.String] $AddressFamily, [Parameter(Mandatory = $true)] [ValidateSet('Enabled', 'Disabled')] [System.String] $State ) Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.GettingDHCPClientMessage) ` -f $InterfaceAlias, $AddressFamily ` ) -join '') Assert-ResourceProperty @PSBoundParameters $currentDHCPClient = Get-NetIPInterface ` -InterfaceAlias $InterfaceAlias ` -AddressFamily $AddressFamily $returnValue = @{ State = $currentDHCPClient.Dhcp AddressFamily = $AddressFamily InterfaceAlias = $InterfaceAlias } return $returnValue } <# .SYNOPSIS Sets the DHCP Client for an interface. .PARAMETER InterfaceAlias Alias of the network interface for which the DHCP Client is set. .PARAMETER AddressFamily IP address family. .PARAMETER State The desired state of the DHCP Client. #> function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('IPv4', 'IPv6')] [System.String] $AddressFamily, [Parameter(Mandatory = $true)] [ValidateSet('Enabled', 'Disabled')] [System.String] $State ) Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.ApplyingDHCPClientMessage) ` -f $InterfaceAlias, $AddressFamily ` ) -join '') Assert-ResourceProperty @PSBoundParameters $null = Get-NetIPInterface ` -InterfaceAlias $InterfaceAlias ` -AddressFamily $AddressFamily # The DHCP Client is in a different state - so change it. Set-NetIPInterface ` -InterfaceAlias $InterfaceAlias ` -AddressFamily $AddressFamily ` -Dhcp $State ` -ErrorAction Stop Write-Verbose -Message ( @("$($MyInvocation.MyCommand): " $($LocalizedData.DHCPClientSetStateMessage) ` -f $InterfaceAlias, $AddressFamily, $State ` ) -join '' ) } # Set-TargetResource <# .SYNOPSIS Tests the state of the DHCP Client for an interface. .PARAMETER InterfaceAlias Alias of the network interface for which the DHCP Client is set. .PARAMETER AddressFamily IP address family. .PARAMETER State The desired state of the DHCP Client. #> function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('IPv4', 'IPv6')] [System.String] $AddressFamily, [Parameter(Mandatory = $true)] [ValidateSet('Enabled', 'Disabled')] [System.String] $State ) # Flag to signal whether settings are correct [System.Boolean] $desiredConfigurationMatch = $true Write-Verbose -Message ( @("$($MyInvocation.MyCommand): " $($LocalizedData.CheckingDHCPClientMessage) ` -f $InterfaceAlias, $AddressFamily ` ) -join '') Assert-ResourceProperty @PSBoundParameters $currentDHCPClient = Get-NetIPInterface ` -InterfaceAlias $InterfaceAlias ` -AddressFamily $AddressFamily # The DHCP Client is in a different state - so change it. if ($currentDHCPClient.DHCP -ne $State) { Write-Verbose -Message ( @("$($MyInvocation.MyCommand): " $($LocalizedData.DHCPClientDoesNotMatchMessage) ` -f $InterfaceAlias, $AddressFamily, $State ` ) -join '' ) $desiredConfigurationMatch = $false } return $desiredConfigurationMatch } # Test-TargetResource <# .SYNOPSIS Function will check the interface exists. If any problems are detected an exception will be thrown. .PARAMETER InterfaceAlias Alias of the network interface for which the DHCP Client is set. .PARAMETER AddressFamily IP address family. .PARAMETER State The desired state of the DHCP Client. #> function Assert-ResourceProperty { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $InterfaceAlias, [Parameter(Mandatory = $true)] [ValidateSet('IPv4', 'IPv6')] [System.String] $AddressFamily, [Parameter(Mandatory = $true)] [ValidateSet('Enabled', 'Disabled')] [System.String] $State ) if (-not (Get-NetAdapter | Where-Object -Property Name -EQ $InterfaceAlias )) { New-InvalidOperationException ` -Message ($LocalizedData.InterfaceNotAvailableError -f $InterfaceAlias) } } # Assert-ResourceProperty Export-ModuleMember -function *-TargetResource |