198 lines
7.4 KiB
PowerShell
198 lines
7.4 KiB
PowerShell
<#
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LXS - Network Diagnostics (Windows)
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Description: Inspect and repair the network stack.
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Everything is read-only except option 8 (stack reset).
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Repo: https://git.hyko.cx/hykocx/lxs
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#>
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# Load LXS common library (colors, UI helpers, spinner, loggers, guards).
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# Prefers the sibling ..\lib\common.ps1 (repo checkout or installed layout) and
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# only hits the network when this script is run standalone.
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$LxsRawBase = if ($env:LXS_RAW_BASE) { $env:LXS_RAW_BASE } else { 'https://git.hyko.cx/hykocx/lxs/raw/branch/main' }
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if (-not $env:LXS_RAW_PLATFORM_BASE) { $env:LXS_RAW_PLATFORM_BASE = "$LxsRawBase/windows" }
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$LxsLibPath = if ($PSScriptRoot) { Join-Path $PSScriptRoot '..\lib\common.ps1' } else { $null }
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if ($LxsLibPath -and (Test-Path $LxsLibPath)) {
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. $LxsLibPath
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} else {
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try {
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$LxsLibSource = Invoke-RestMethod -Uri "$env:LXS_RAW_PLATFORM_BASE/lib/common.ps1" -UseBasicParsing -ErrorAction Stop
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} catch {
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Write-Error 'Failed to fetch lib/common.ps1'
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exit 1
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}
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. ([scriptblock]::Create($LxsLibSource))
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}
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$env:LXS_LOG_FILE = Join-Path (Get-LxsTempDir) 'lxs_net_diag.log'
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function Show-LxsIpConfiguration {
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Clear-Host
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Show-LxsBoxTop -Title 'IP CONFIGURATION'
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Write-Host ''
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try {
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Get-NetIPConfiguration -Detailed -ErrorAction Stop | ForEach-Object {
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Write-Host "$($script:Cyan)$($script:Bold)$($_.InterfaceAlias)$($script:NC) $($script:Gray)($($_.InterfaceDescription))$($script:NC)"
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Write-Host " Status : $($_.NetAdapter.Status) | MAC: $($_.NetAdapter.MacAddress) | Speed: $($_.NetAdapter.LinkSpeed)"
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Write-Host " IPv4 : $($_.IPv4Address.IPAddress -join ', ')"
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Write-Host " IPv6 : $($_.IPv6Address.IPAddress -join ', ')"
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Write-Host " Gateway : $($_.IPv4DefaultGateway.NextHop -join ', ')"
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Write-Host " DNS : $($_.DNSServer.ServerAddresses -join ', ')"
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Write-Host ''
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}
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} catch {
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Write-LxsWarn 'Get-NetIPConfiguration unavailable; falling back to ipconfig /all.'
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ipconfig /all | Out-String | Write-Host
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}
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}
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function Show-LxsListeningPorts {
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Clear-Host
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Show-LxsBoxTop -Title 'LISTENING PORTS'
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Write-Host ''
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try {
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$rows = Get-NetTCPConnection -State Listen -ErrorAction Stop | ForEach-Object {
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$procName = try { (Get-Process -Id $_.OwningProcess -ErrorAction Stop).ProcessName } catch { 'unknown' }
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[pscustomobject]@{
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Local = "$($_.LocalAddress):$($_.LocalPort)"
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Port = $_.LocalPort
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PID = $_.OwningProcess
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Process = $procName
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}
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}
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$rows | Sort-Object Port | Format-Table -AutoSize Local, PID, Process | Out-String | Write-Host
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} catch {
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Write-LxsWarn 'Get-NetTCPConnection unavailable; falling back to netstat.'
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netstat -ano | Select-String 'LISTENING' | Out-String | Write-Host
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}
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}
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function Clear-LxsDnsCache {
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Clear-Host
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Show-LxsBoxTop -Title 'FLUSH DNS CACHE'
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Write-Host ''
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try {
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Clear-DnsClientCache -ErrorAction Stop
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Write-LxsOk 'DNS resolver cache flushed'
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} catch {
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Write-LxsWarn 'Clear-DnsClientCache failed; falling back to ipconfig /flushdns.'
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ipconfig /flushdns | Out-String | Write-Host
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}
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}
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function Invoke-LxsPing {
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Clear-Host
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Show-LxsBoxTop -Title 'PING'
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Write-Host ''
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$target = Read-Host -Prompt 'Host to ping (default: 1.1.1.1)'
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if ([string]::IsNullOrWhiteSpace($target)) { $target = '1.1.1.1' }
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Write-Host ''
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ping.exe -n 4 $target | Out-String | Write-Host
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}
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function Invoke-LxsTraceroute {
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Clear-Host
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Show-LxsBoxTop -Title 'TRACEROUTE'
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Write-Host ''
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$target = Read-Host -Prompt 'Host to trace (default: 1.1.1.1)'
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if ([string]::IsNullOrWhiteSpace($target)) { $target = '1.1.1.1' }
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Write-Host ''
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Write-LxsInfo "Tracing route to $target (this can take a minute)..."
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tracert.exe -d -h 20 $target | Out-String | Write-Host
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}
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function Test-LxsRemotePort {
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Clear-Host
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Show-LxsBoxTop -Title 'TEST TCP PORT'
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Write-Host ''
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$target = Read-Host -Prompt 'Host'
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if ([string]::IsNullOrWhiteSpace($target)) { Write-LxsErr 'No host given.'; return }
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$port = Read-Host -Prompt 'Port'
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if ($port -notmatch '^\d+$') { Write-LxsErr 'Port must be a number.'; return }
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Write-Host ''
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try {
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$result = Test-NetConnection -ComputerName $target -Port ([int]$port) -WarningAction SilentlyContinue -ErrorAction Stop
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if ($result.TcpTestSucceeded) {
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Write-LxsOk "${target}:${port} is reachable ($($result.RemoteAddress))"
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} else {
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Write-LxsErr "${target}:${port} is NOT reachable"
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}
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} catch {
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Write-LxsErr "Test failed: $($_.Exception.Message)"
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}
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}
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function Show-LxsPublicIp {
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Clear-Host
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Show-LxsBoxTop -Title 'PUBLIC IP'
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Write-Host ''
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Write-LxsInfo 'Querying...'
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Write-Host ''
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Write-Host " $($script:White)$($script:Bold)$(Get-LxsPublicIP)$($script:NC)"
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Write-Host ''
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}
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function Reset-LxsNetworkStack {
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Clear-Host
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Show-LxsBoxTop -Title 'RESET NETWORK STACK' -Right 'DESTRUCTIVE'
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Write-Host ''
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Write-Host 'This resets the Winsock catalog and the TCP/IP stack. It clears'
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Write-Host 'third-party LSP entries, static IP settings and proxy configuration,'
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Write-Host "and $($script:Bold)requires a reboot$($script:NC) to take effect."
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Write-Host ''
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if (-not (Confirm-LxsAction -Question 'Reset the network stack now?')) {
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Write-LxsInfo 'Cancelled.'
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return
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}
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if (-not (Test-LxsAdmin)) {
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Write-LxsErr 'This action requires administrator rights. Re-run lxs from an elevated terminal.'
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return
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}
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Write-Host ''
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netsh winsock reset | Out-String | Write-Host
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netsh int ip reset | Out-String | Write-Host
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Clear-DnsClientCache -ErrorAction SilentlyContinue
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Write-Host ''
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Write-LxsOk 'Network stack reset'
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Write-LxsWarn 'Reboot required for the change to take effect.'
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}
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function Show-LxsNetDiagMenu {
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while ($true) {
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Clear-Host
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Show-LxsBoxTop -Title 'NETWORK DIAG'
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Write-Host ''
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Show-LxsMenuItem '1' 'Show IP configuration'
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Show-LxsMenuItem '2' 'Show listening ports'
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Show-LxsMenuItem '3' 'Flush DNS cache'
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Show-LxsMenuItem '4' 'Ping a host'
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Show-LxsMenuItem '5' 'Traceroute a host'
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Show-LxsMenuItem '6' 'Test a TCP port'
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Show-LxsMenuItem '7' 'Show public IP'
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Show-LxsMenuItem '8' 'Reset network stack' 'needs admin + reboot'
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Show-LxsMenuItem '0' 'Back' '' -Exit
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Write-Host ''
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Show-LxsBoxBottom
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Write-Host ''
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$choice = Read-LxsChoice
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Write-Host ''
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switch ($choice) {
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'1' { Show-LxsIpConfiguration; Read-LxsEnter }
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'2' { Show-LxsListeningPorts; Read-LxsEnter }
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'3' { Clear-LxsDnsCache; Read-LxsEnter }
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'4' { Invoke-LxsPing; Read-LxsEnter }
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'5' { Invoke-LxsTraceroute; Read-LxsEnter }
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'6' { Test-LxsRemotePort; Read-LxsEnter }
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'7' { Show-LxsPublicIp; Read-LxsEnter }
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'8' { Reset-LxsNetworkStack; Read-LxsEnter }
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'0' { return }
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default { Write-LxsErr 'Invalid protocol. Select 0-8.'; Start-Sleep -Seconds 1 }
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}
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}
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}
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if (-not (Assert-LxsWindows)) { exit 1 }
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Show-LxsNetDiagMenu
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exit 75
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