DHCPMigration.psm1
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#region MODULE FUNCTIONS Function Copy-DhcpServerOptionDefinition() { <# .EXTERNALHELP en-US\DHCPMigration.psm1-Help.xml #> [CmdletBinding(SupportsShouldProcess=$true, PositionalBinding=$false, DefaultParameterSetName='ByCredential')] [alias("copyoptdefs")] param ( [parameter(Mandatory=$true, Position=0, ParameterSetName='ByCredential')] [alias("t", "to")] [string] $ToServer, [parameter(Mandatory=$true, Position=1, ParameterSetName='ByCredential')] [alias("f", "from")] [string] $FromServer, [parameter(Mandatory=$false, Position=2)] [alias("id")] [int[]] $OptionId, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("toc")] [pscredential] $ToCredential, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("froc")] [pscredential] $FromCredential, [parameter(Mandatory=$false, Position=0, ParameterSetName='ByCimSession')] [alias("tcim")] [Microsoft.Management.Infrastructure.CimSession] $ToCimSession, [parameter(Mandatory=$false, Position=1, ParameterSetName='ByCimSession')] [alias("fcim")] [Microsoft.Management.Infrastructure.CimSession] $FromCimSession ) Begin { $private:bank = PrepareConnections -SetName $PSCmdlet.ParameterSetName -BoundParameters $PSBoundParameters; $to = $private:bank.To; $from = $private:bank.From; if ($PSBoundParameters.ContainsKey("Confirm")) { $to.Confirm = $PSBoundParameters["Confirm"]; } else { $to.Confirm = $true; } if ($PSBoundParameters.ContainsKey("Verbose")) { $to.Verbose = $PSBoundParameters["Verbose"]; } } Process { Write-Verbose "Gathering options from source server..."; $oldDefs = Get-DhcpServerv4OptionDefinition @from -All; Write-Verbose "Gathering options from destination server..."; $newDefs = Get-DhcpServerv4OptionDefinition @to -All; $compareArgs = @{ ReferenceObject = $oldDefs # Source Option Definitions DifferenceObject = $newDefs # Option Definitions from the destination server Property = "OptionId" }; Write-Verbose "Comparing OptionId differences..."; $differences = @(Compare-Object @compareArgs | Where-Object { $_.SideIndicator -eq '<=' } | Select-Object -ExpandProperty OptionId); if ($PSBoundParameters.ContainsKey("OptionId")) { $differences = $differences | Where-Object { $_ -in $OptionId } } Write-Verbose $("There are {0} differences to be copied over." -f $differences.Count); if ($differences.Count -gt 0) { foreach ($def in $differences) { $opt = $oldDefs | Where-Object { $_.OptionId -eq $def }; $optArgs = @{ Name = $opt.Name OptionId = $opt.OptionId Description = $opt.Description Type = $opt.Type MultiValued = $opt.MultiValued VendorClass = $opt.VendorClass DefaultValue = $opt.DefaultValue Confirm = switch ($PSBoundParameters.ContainsKey("Confirm")) { $true { $PSBoundParameters["Confirm"] } $false { $true } } WhatIf = $PSBoundParameters.ContainsKey("WhatIf") }; Write-Verbose $("Executing `"Add-DhcpServerv4OptionDefinition`" on destination server for OptionId {0}..." -f $opt.OptionId); Write-Debug $("Add-DhcpServerv4OptionDefinition arguments:`n`n{0}" -f $($optArgs | Out-String)); Add-DhcpServerv4OptionDefinition @to @optArgs; } } else { Write-Verbose "All options are present on the destination DHCP server."; } } } Function Copy-DhcpServerOptionValue() { <# .EXTERNALHELP en-US\DHCPMigration.psm1-Help.xml #> [CmdletBinding(SupportsShouldProcess=$true, PositionalBinding=$false, DefaultParameterSetName='ByCredential')] [alias("copyoptvals")] param ( [parameter(Mandatory=$true, Position=0, ParameterSetName='ByCredential')] [alias("t", "to")] [string] $ToServer, [parameter(Mandatory=$true, Position=1, ParameterSetName='ByCredential')] [alias("f", "from")] [string] $FromServer, [parameter(Mandatory=$false, Position=2)] [alias("id")] [int[]] $OptionId, [parameter(Mandatory=$false)] [switch] $OverwriteExisting, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("toc")] [pscredential] $ToCredential, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("froc")] [pscredential] $FromCredential, [parameter(Mandatory=$false, Position=0, ParameterSetName='ByCimSession')] [alias("tcim")] [Microsoft.Management.Infrastructure.CimSession] $ToCimSession, [parameter(Mandatory=$false, Position=1, ParameterSetName='ByCimSession')] [alias("fcim")] [Microsoft.Management.Infrastructure.CimSession] $FromCimSession ) Begin { $private:bank = PrepareConnections -SetName $PSCmdlet.ParameterSetName -BoundParameters $PSBoundParameters; $to = $private:bank.To; $from = $private:bank.From; if ($PSBoundParameters.ContainsKey("Confirm")) { $to.Confirm = $PSBoundParameters["Confirm"]; } else { $to.Confirm = $true; } if ($PSBoundParameters.ContainsKey("Verbose")) { $to.Verbose = $PSBoundParameters["Verbose"]; } } Process { $oldVals = @(Get-DhcpServerv4OptionValue @from -All); if ($PSBoundParameters.ContainsKey("OptionId")) { $oldVals = $oldVals | Where-Object { $_.OptionId -in $OptionId }; } $from.Remove("ErrorAction"); foreach ($val in $oldVals) { if ($PSBoundParameters.ContainsKey("OverwriteExisting") -or $($null -eq $(Get-DhcpServerv4OptionValue @to -OptionId $val.OptionId -ErrorAction SilentlyContinue))) { Set-DhcpServerv4OptionValue @to -OptionId $val.OptionId -Value $val.Value; } } } } Function Copy-DhcpPolicy() { <# .EXTERNALHELP en-US\DHCPMigration.psm1-Help.xml #> [CmdletBinding(SupportsShouldProcess=$true, PositionalBinding=$false, DefaultParameterSetName='ServerPoliciesByCredential')] param ( [parameter(Mandatory=$false, Position=0, ParameterSetName='ServerPoliciesByCredential')] [parameter(Mandatory=$false, Position=0, ParameterSetName='ScopePoliciesByCredential')] [alias("t", "to")] [string] $ToServer = $env:COMPUTERNAME, [parameter(Mandatory=$true, Position=1, ParameterSetName='ServerPoliciesByCredential')] [parameter(Mandatory=$true, Position=1, ParameterSetName='ScopePoliciesByCredential')] [alias("f", "from")] [string] $FromServer, [parameter(Mandatory=$false, Position=2)] [alias("name")] [string[]] $PolicyName, [parameter(Mandatory=$true, ParameterSetName='ScopePoliciesByCredential')] [parameter(Mandatory=$true, ParameterSetName='ScopePoliciesByCimSession')] [ipaddress] $ToScopeId, [parameter(Mandatory=$true, ParameterSetName='ScopePoliciesByCredential')] [parameter(Mandatory=$true, ParameterSetName='ScopePoliciesByCimSession')] [ipaddress] $FromScopeId, [parameter(Mandatory=$false, ParameterSetName='ServerPoliciesByCredential')] [parameter(Mandatory=$false, ParameterSetName='ScopePoliciesByCredential')] [alias("toc")] [pscredential] $ToCredential, [parameter(Mandatory=$false, ParameterSetName='ServerPoliciesByCredential')] [parameter(Mandatory=$false, ParameterSetName='ScopePoliciesByCredential')] [alias("froc")] [pscredential] $FromCredential, [parameter(Mandatory=$false, Position=0, ParameterSetName='ServerPoliciesByCimSession')] [parameter(Mandatory=$false, Position=0, ParameterSetName='ScopePoliciesByCimSession')] [alias("tcim")] [Microsoft.Management.Infrastructure.CimSession] $ToCimSession, [parameter(Mandatory=$false, Position=1, ParameterSetName='ServerPoliciesByCimSession')] [parameter(Mandatory=$false, Position=0, ParameterSetName='ScopePoliciesByCimSession')] [alias("fcim")] [Microsoft.Management.Infrastructure.CimSession] $FromCimSession ) Begin { $private:bank = PrepareConnections -SetName $PSCmdlet.ParameterSetName -BoundParameters $PSBoundParameters; $to = $private:bank.To; $from = $private:bank.From; if ($PSCmdlet.ParameterSetName -in @("ScopePoliciesByCredential", "ScopePoliciesByCimSession")) { $to.ScopeId = $PSBoundParameters["ToScopeId"]; $from.ScopeId = $PSBoundParameters["FromScopeId"]; } if ($PSBoundParameters.ContainsKey("Verbose")) { $to.Verbose = $PSBoundParameters["Verbose"]; } } Process { $allPolicies = @(Get-DhcpServerv4Policy @from); if ($PSBoundParameters.ContainsKey("PolicyName")) { $allPolicies = $allPolicies | Where-Object { $_.Name -in $PolicyName }; } if ($allPolicies.Count -le 0) { return; } $properties = $allPolicies[0] | Get-Member -MemberType Property | Where-Object { $_.Name -ne "PSComuputerName" } | Select-Object -ExpandProperty Name; if ($PSBoundParameters.ContainsKey("Confirm")) { $to.Confirm = $PSBoundParameters["Confirm"]; } else { $to.Confirm = $true; } foreach ($p in $allPolicies) { $hash = @{}; foreach ($prop in $properties) { if (($p.$prop -is [string] -and ([string]::IsNullOrEmpty($p.$prop) -or $p.$prop -eq "0.0.0.0")) -or ($p.$prop -isnot [string] -and $null -eq $p.$prop) -or ($p.$prop -is [timespan] -and $p.$prop.Ticks -eq 0)) { continue; } $hash.Add($prop, $p.$prop); } Add-DhcpServerv4Policy @to @hash; } } } Function Copy-DhcpScope() { <# .EXTERNALHELP en-US\DHCPMigration.psm1-Help.xml #> [CmdletBinding(SupportsShouldProcess=$true, PositionalBinding=$false, DefaultParameterSetName='ByCredential')] param ( [parameter(Mandatory=$false, Position=0, ParameterSetName='ByCredential')] [alias("t", "to")] [string] $ToServer = $env:COMPUTERNAME, [parameter(Mandatory=$true, Position=1, ParameterSetName='ByCredential')] [alias("f", "from")] [string] $FromServer, [parameter(Mandatory=$false, Position=2)] [alias("sid")] [ipaddress[]] $ScopeId, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("toc")] [pscredential] $ToCredential, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("froc")] [pscredential] $FromCredential, [parameter(Mandatory=$false, Position=0, ParameterSetName='ByCimSession')] [alias("tcim")] [Microsoft.Management.Infrastructure.CimSession] $ToCimSession, [parameter(Mandatory=$false, Position=1, ParameterSetName='ByCimSession')] [alias("fcim")] [Microsoft.Management.Infrastructure.CimSession] $FromCimSession ) Begin { Write-Verbose "Preparing connections..." $private:bank = PrepareConnections -SetName $PSCmdlet.ParameterSetName -BoundParameters $PSBoundParameters; $to = $private:bank.To; $from = $private:bank.From; if ($PSBoundParameters.ContainsKey("Verbose")) { $to.Verbose = $PSBoundParameters["Verbose"]; } Write-Debug "To Hash: $($to | Out-String)"; Write-Debug "From Hash: $($from | Out-String)"; } Process { if ($PSBoundParameters.ContainsKey("ScopeId")) { $allScopes = @(Get-DhcpServerv4Scope @from -ScopeId $ScopeId); } else { $allScopes = @(Get-DhcpServerv4Scope @from); } if ($PSBoundParameters.ContainsKey("Confirm")) { $to.Confirm = $PSBoundParameters["Confirm"]; } else { $to.Confirm = $true; } for ($i = 1; $i -le $allScopes.Count; $i++) { $scope = $allScope[$i - 1]; Write-ScriptProgress -Activity "Scopes" -Id 1 -Total $allScopes.Count -On $i; $addScopeArgs = @{ Name = $scope.Name SubnetMask = $scope.SubnetMask StartRange = $scope.StartRange EndRange = $scope.EndRange State = "Inactive" # We will mark the newly created scope as 'Inactive'. Description = $scope.Description SuperscopeName = $scope.SuperscopeNames MaxBootpClients = $scope.MaxBootpClients Type = $scope.Type ActivatePolicies = $scope.ActivatePolicies Delay = $scope.Delay LeaseDuration = $scope.LeaseDuration NapEnable = $scope.NapEnable NapProfile = $scope.NapProfile }; Write-Debug "Scope Args: $($addScopeArgs | Out-String)"; Add-DhcpServerv4Scope @to @addScopeArgs; } Write-ScriptProgress -Activity "Scopes" -Id 1 -Completed; } } Function Copy-DhcpLease() { <# .EXTERNALHELP en-US\DHCPMigration.psm1-Help.xml #> [CmdletBinding(SupportsShouldProcess=$true, PositionalBinding=$false, DefaultParameterSetName='ByCredential')] param ( [parameter(Mandatory=$false, Position=1, ParameterSetName='ByCredential')] [alias("t", "to")] [string] $ToServer, [parameter(Mandatory=$true, Position=0, ParameterSetName='ByCredential')] [alias("f", "from")] [string] $FromServer, [parameter(Mandatory=$false, Position=2)] [alias("sid")] [ipaddress[]] $ScopeId, [parameter(Mandatory=$false)] [switch] $ExcludeReservations, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("toc")] [pscredential] $ToCredential, [parameter(Mandatory=$false, ParameterSetName='ByCredential')] [alias("froc")] [pscredential] $FromCredential, [parameter(Mandatory=$false, Position=0, ParameterSetName='ByCimSession')] [alias("tcim")] [Microsoft.Management.Infrastructure.CimSession] $ToCimSession, [parameter(Mandatory=$false, Position=1, ParameterSetName='ByCimSession')] [alias("fcim")] [Microsoft.Management.Infrastructure.CimSession] $FromCimSession ) Begin { Write-Verbose "Preparing connections..." $private:bank = PrepareConnections -SetName $PSCmdlet.ParameterSetName -BoundParameters $PSBoundParameters; $to = $private:bank.To; $from = $private:bank.From; if ($PSBoundParameters.ContainsKey("Verbose")) { $to.Verbose = $PSBoundParameters["Verbose"]; } Write-Debug "To Hash: $($to | Out-String)"; Write-Debug "From Hash: $($from | Out-String)"; } Process { if ($PSBoundParameters.ContainsKey("ScopeId")) { $sids = $ScopeId.ForEach({$_.ToString()}) -join ', '; Write-Verbose "Retrieving leases from $sids..." $allLeases = @(Get-DhcpServerv4Scope @from -ScopeId $ScopeId | Get-DhcpServerv4Lease @from); } else { Write-Verbose "Retrieving all scope leases..."; $allLeases = @(Get-DhcpServerv4Scope @from | Get-DhcpServerv4Lease @from); } $leases = @($allLeases | Where-Object { $_.AddressState -notlike "*Reservation" }); Write-Progress -Activity "Lease Copy" -Status "Running steps 1/2..." -Id 1 -PercentComplete 50; if ($PSBoundParameters.ContainsKey("Confirm")) { $to.Confirm = $PSBoundParameters["Confirm"]; } else { $to.Confirm = $true; } for ($i = 1; $i -le $leases.Count; $i++) { $lease = $leases[$i - 1]; Write-ScriptProgress -Activity "Leases" -Id 2 -Total $leases.Count -On $i; $leaseArgs = @{ ScopeId = $lease.ScopeId IPAddress = $lease.IPAddress AddressState = $lease.AddressState HostName = $lease.HostName Description = $lease.Description DnsRR = $lease.DnsRR DnsRegistration = $lease.DnsRegistration ClientType = $lease.ClientType LeaseExpiryTime = $lease.LeaseExpiryTime NapCapable = $lease.NapCapable NapStatus = $lease.NapStatus ProbationEnds = $lease.ProbationEnds ClientId = $lease.ClientId }; Write-Debug "Lease Args: $($leaseArgs | Out-String)"; Add-DhcpServerv4Lease @to @leaseArgs; } Write-ScriptProgress -Activity "Leases" -Id 2 -Completed; Write-Progress -Activity "Lease Copy" -Status "Running step 2/2..." -Id 1 -PercentComplete 75; if (-not $PSBoundParameters.ContainsKey("ExcludeReservations")) { Write-Verbose "Now creating any reservations..."; $resrv = @($allLeases | Where-Object { $_.AddressState -like "*Reservation" }); for ($r = 1; $r -le $resrv.Count; $r++) { $res = $resrv[$r - 1]; Write-ScriptProgress -Activity "Reservations" -Id 3 -Total $resrv.Count -On $r; $resArgs = @{ ScopeId = $res.ScopeId IPAddress = $res.IPAddress ClientId = $res.ClientId Name = $res.Name Description = $res.Description Type = $res.Type }; Write-Debug "Reservation Args: $($resArgs | Out-String)"; Add-DhcpServerv4Reservation @to @resArgs; } Write-ScriptProgress -Activity "Reservations" -Id 3 -Completed; } Write-Progress -Activity "Lease Copy" -Id 1 -Completed; } } #endregion #region BACKEND FUNCTIONS Function PrepareConnections([string]$SetName, [System.Collections.IDictionary]$BoundParameters) { $private:toHash = @{} if ($BoundParameters.ContainsKey("ErrorAction")) { $private:toHash.ErrorAction = $BoundParameters["ErrorAction"]; } if ($BoundParameters.ContainsKey("Verbose")) { $private:toHash.Verbose = $true; } # if ($BoundParameters.ContainsKey("Debug")) # { # $private:toHash.Debug = $true; # } $private:fromHash = $private:toHash.Clone(); if ($SetName -eq "ByCredential") { if ($BoundParameters.ContainsKey("ToCredential")) { $private:toHash.CimSession = New-CimSession -ComputerName $BoundParameters["ToServer"] -Credential $BoundParameters["ToCredential"]; } else { $private:toHash.ComputerName = switch ($BoundParameters.ContainsKey("ToServer")) { $true { $BoundParameters["ToServer"] } $false { $env:COMPUTERNAME } } } if ($BoundParameters.ContainsKey("FromCredential")) { $private:fromHash.CimSession = New-CimSession -ComputerName $BoundParameters["FromServer"] -Credential $BoundParameters["FromCredential"]; } else { $private:fromHash.ComputerName = $BoundParameters["FromServer"]; } } else { if ($BoundParameters.ContainsKey("ToCimSession")) { $private:toHash.CimSession = $BoundParameters["ToCimSession"]; } if ($BoundParameters.ContainsKey("FromCimSession")) { $private:fromHash.CimSession = $BoundParameters["FromCimSession"]; } } $private:combined = [pscustomobject]@{ To = $private:toHash From = $private:fromHash }; Write-Output $private:combined -NoEnumerate; } Function Write-ScriptProgress() { [CmdletBinding(PositionalBinding = $false, DefaultParameterSetName = "StillRunning")] param ( [parameter(Mandatory = $true)] [ValidateSet("Scopes", "Options", "Reservations", "Leases")] [string] $Activity, [parameter(Mandatory = $true)] [int] $Id, [parameter(Mandatory = $true, ParameterSetName = "StillRunning")] [int] $On, [parameter(Mandatory = $true, ParameterSetName = "StillRunning")] [int] $Total, [parameter(Mandatory = $true, ParameterSetName = "Complete")] [switch] $Completed ) $splat = @{ Id = $Id Activity = "Adding $Activity" }; if (-not $PSBoundParameters.ContainsKey("Completed")) { if ($Id -ne 1) { $splat.ParentId = 1; } switch ($Activity) { "Scopes" { $Status = "Copying Scope {0}/{1}..."; } "Options" { $Status = "Copying Scope Option {0}/{1}..."; } "Reservations" { $Status = "Copying Reservation {0}/{1}..."; } "Leases" { $Status = "Copying Lease {0}/{1}..." } } $splat.Status = $Status -f $On, $Total; $splat.PercentComplete = (($On / $Total) * 100); } else { $splat.Completed = $true } Write-Progress @splat; } #endregion |