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Try to detect the guest IP address with Get-NetNeighbor #5993

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Try to detect the guest IP address with Get-NetNeighbor #5993

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43 changes: 39 additions & 4 deletions common/powershell/hyperv/hyperv.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,24 +31,55 @@ return $false
return cmdOut, err
}

func GetVirtualMachineNetworkAdapterMacAddress(vmName string) (string, error) {

var script = `
param([string]vmName)
try {
$adapter = Hyper-V\Get-VMNetworkAdapter -VMName $vmName -ErrorAction SilentlyContinue
$macaddr = $adapter.MacAddress -replace "(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})", '$1-$2-$3-$4-$5-$6'
if ($macaddr -eq null) {
return $false
}
} catch {
return $false
}
$macaddr
`
var ps powershell.PowerShellCmd
cmdOut, err := ps.Output(script, vmName)

return cmdOut, err
}

func GetVirtualMachineNetworkAdapterAddress(vmName string) (string, error) {

var script = `
param([string]$vmName, [int]$addressIndex)
param([string]$vmName, [int]$addressIndex, [string]$macaddress)
try {
$adapter = Hyper-V\Get-VMNetworkAdapter -VMName $vmName -ErrorAction SilentlyContinue
$ip = $adapter.IPAddresses[$addressIndex]
if($ip -eq $null) {
return $false
$ip = (Get-NetNeighbor -LinkLayerAddress $macaddress).IPAddress
if ($ip -eq $null) {
return $false
}
}
} catch {
return $false
}
$ip
`
cmdOut, err := GetVirtualMachineNetworkAdapterMacAddress(vmName)

var macaddress string
macaddress = strings.TrimSpace(cmdOut)
if macaddress == "False" {
macaddress = ""
}

var ps powershell.PowerShellCmd
cmdOut, err := ps.Output(script, vmName, "0")
cmdOut, err = ps.Output(script, vmName, "0", macaddress)

return cmdOut, err
}
Expand Down Expand Up @@ -983,7 +1014,11 @@ try {
$ip = Hyper-V\Get-Vm | %{$_.NetworkAdapters} | ?{$_.MacAddress -eq $mac} | %{$_.IpAddresses[$addressIndex]}

if($ip -eq $null) {
return ""
$macaddr = $mac -replace "(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})", '$1-$2-$3-$4-$5-$6'
$ip = (Get-NetNeighbor -LinkLayerAddress $macaddr).IPAddress
if ($ip -eq $null) {
return ""
}
}
} catch {
return ""
Expand Down