[ovs-dev] [PATCH] WMI Script that updates Hyper-V friendly port names
Alin Serdean
aserdean at cloudbasesolutions.com
Thu Sep 25 06:18:19 UTC 2014
The following script leverage's the advantages of WMI infrastructure
offered in Hyper-V.
This scripts allows the user to change the
Msvm_EthernetPortAllocationSettingData property of a VM network adapter
connected to a Hyper-V Virtual Switch.
Usage:
import-module .\OVS.psm1
$vnic = Get-VMNetworkAdapter VM1
Connect-VMNetworkAdapter -VMNetworkAdapter $vnic -SwitchName external
$vnic | Set-VMNetworkAdapterOVSPort -OVSPortName ovs-port-1
VM1 - is a VM on top of a Hyper-V
external - is a Hyper-V Virtual Switch
Signed-off-by: Alessandro Pilotti <apilotti at cloudbasesolutions.com>
Signed-off-by: Alin Gabriel Serdean <aserdean at cloudbasesolutions.com>
---
datapath-windows/misc/OVS.psm1 | 76 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 datapath-windows/misc/OVS.psm1
diff --git a/datapath-windows/misc/OVS.psm1 b/datapath-windows/misc/OVS.psm1
new file mode 100644
index 0000000..52ed3ba
--- /dev/null
+++ b/datapath-windows/misc/OVS.psm1
@@ -0,0 +1,76 @@
+<#
+Copyright 2014 Cloudbase Solutions Srl
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+#>
+
+$hvassembly = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.HyperV.PowerShell")
+
+function Set-VMNetworkAdapterOVSPort
+{
+ [CmdletBinding()]
+ param
+ (
+ [parameter(Mandatory=$true, ValueFromPipeline=$true)]
+ [Microsoft.HyperV.PowerShell.VMNetworkAdapter]$VMNetworkAdapter,
+
+ [parameter(Mandatory=$true)]
+ [string]$OVSPortName
+ )
+ process
+ {
+ $ns = "root\virtualization\v2"
+ $EscapedId = $VMNetworkAdapter.Id.Replace('\', '\\')
+ $sd = gwmi -namespace $ns -class Msvm_EthernetPortAllocationSettingData -Filter "InstanceId like '$EscapedId%'"
+
+ if($sd)
+ {
+ $sd.ElementName = $OVSPortName
+
+ $vsms = gwmi -namespace $ns -class Msvm_VirtualSystemManagementService
+ $retVal = $vsms.ModifyResourceSettings(@($sd.GetText(1)))
+ try
+ {
+ Check-WMIReturnValue $retVal
+ }
+ catch
+ {
+ throw "Assigning OVS port '$OVSPortName' failed"
+ }
+ }
+ }
+}
+
+function Check-WMIReturnValue($retVal)
+{
+ if ($retVal.ReturnValue -ne 0)
+ {
+ if ($retVal.ReturnValue -eq 4096)
+ {
+ do
+ {
+ $job = [wmi]$retVal.Job
+ }
+ while ($job.JobState -eq 4)
+
+ if ($job.JobState -ne 7)
+ {
+ throw "Job Failed"
+ }
+ }
+ else
+ {
+ throw "Job Failed"
+ }
+ }
+}
--
1.9.1
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