xenadmin/XenModel/Actions/Network/ChangeNetworkingAction.cs

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/* Copyright (c) Citrix Systems Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Text;
using XenAdmin.Core;
using XenAdmin.Network;
using XenAPI;
namespace XenAdmin.Actions
{
public class ChangeNetworkingAction : AsyncAction
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private List<PIF> newPIFs;
private List<PIF> downPIFs;
private PIF downManagement;
private PIF newManagement;
private bool managementIPChanged;
private Host[] Hosts;
/// <summary>
///
/// </summary>
/// <param name="connection"></param>
/// <param name="pool">May be null, in which case we're acting on a single host basis.</param>
/// <param name="host">If pool is set, then host should be the pool master.</param>
/// <param name="newPIFs">New PIF instances that are to be created on the server.</param>
/// <param name="downPIFs"></param>
/// <param name="newManagement">May be null, in which case the management network will not be disturbed.
/// Note that it is still possible for the management interface to receive a new IP address even if this
/// parameter is null, because it may be in newPIFs. You only need to use this parameter if the management
/// interface is switching onto a different PIF.</param>
/// <param name="downManagement">May be null iff newManagement is null.</param>
public ChangeNetworkingAction(IXenConnection connection, Pool pool, Host host, List<PIF> newPIFs, List<PIF> downPIFs,
PIF newManagement, PIF downManagement, bool managementIPChanged)
: base(connection, Messages.ACTION_CHANGE_NETWORKING_TITLE)
{
Pool = pool;
Host = host;
this.newPIFs = newPIFs;
this.downPIFs = downPIFs;
this.newManagement = newManagement;
this.downManagement = downManagement;
this.managementIPChanged = managementIPChanged;
if (pool != null)
{
// If we're going to compute address ranges, then we need a sorted list of hosts (to keep the addresses stable).
Hosts = Connection.Cache.Hosts;
Array.Sort(Hosts);
foreach (Host h in Hosts)
{
AppliesTo.Add(h.opaque_ref);
}
}
#region RBAC Dependencies
ApiMethodsToRoleCheck.Add("vm.set_memory_limits");
ApiMethodsToRoleCheck.Add("host.management_reconfigure");
ApiMethodsToRoleCheck.Add("pif.reconfigure_ip");
ApiMethodsToRoleCheck.Add("pif.plug");
ApiMethodsToRoleCheck.AddRange(XenAPI.Role.CommonSessionApiList);
ApiMethodsToRoleCheck.AddRange(XenAPI.Role.CommonTaskApiList);
#endregion
}
protected override void Run()
{
Connection.ExpectDisruption = !managementIPChanged;
try
{
int inc = (Pool == null ? 100 : 50) / (newPIFs.Count + downPIFs.Count + 1);
int progress = 0;
// We bring up / reconfigure the interfaces on the slaves.
// Then the master.
// Then we reconfigure the management interface on the slaves.
// Then the master.
// Then we bring down the other interfaces on the slaves.
// And then the master.
// If Pool isn't set, then we're just doing this for the one host.
if (Pool != null)
{
foreach (PIF pif in newPIFs)
{
progress += inc;
Reconfigure(pif, true, false, progress);
}
}
foreach (PIF pif in newPIFs)
{
progress += inc;
Reconfigure(pif, true, true, progress);
}
if (downManagement != null)
{
if (Pool != null)
{
progress += inc;
ReconfigureManagement(false, progress);
}
progress += inc;
ReconfigureManagement(true, progress);
}
if (Pool != null)
{
foreach (PIF pif in downPIFs)
{
progress += inc;
Reconfigure(pif, false, false, progress);
}
}
foreach (PIF pif in downPIFs)
{
progress += inc;
Reconfigure(pif, false, true, progress);
}
Description = Messages.ACTION_CHANGE_NETWORKING_DONE;
}
finally
{
Connection.ExpectDisruption = false;
}
}
private void Reconfigure(PIF pif, bool up, bool this_host, int hi)
{
NetworkingActionHelpers.ForSomeHosts(this, pif, this_host, true, hi,
delegate(AsyncAction a, PIF p, int h)
{
if (up)
BringUp(pif, p, h);
else
NetworkingActionHelpers.BringDown(a, p, h);
});
}
private void ReconfigureManagement(bool this_host, int hi)
{
System.Diagnostics.Trace.Assert(downManagement != null);
System.Diagnostics.Trace.Assert(newManagement != null);
bool clearDownManagementIP = true;
foreach (PIF p in newPIFs)
{
if (p.uuid == downManagement.uuid)
{
clearDownManagementIP = false;
break;
}
}
NetworkingActionHelpers.ReconfigureManagement(this, downManagement, newManagement, this_host, true, hi,
clearDownManagementIP);
}
private void BringUp(PIF new_pif, PIF existing_pif, int hi)
{
string ip = existing_pif.IP;
if (new_pif.ip_configuration_mode == ip_configuration_mode.Static)
ip = Pool == null ? new_pif.IP : GetIPInRange(new_pif.IP, existing_pif);
NetworkingActionHelpers.BringUp(this, new_pif, ip, existing_pif, hi);
}
private string GetIPInRange(string range_start, PIF existing_pif)
{
Host host = Connection.Resolve(existing_pif.host);
if (host == null)
throw new Failure(Failure.INTERNAL_ERROR, "Host has gone away during IP address calculation!");
int i = Array.IndexOf(Hosts, host);
if (i == -1)
throw new Failure(Failure.INTERNAL_ERROR, "Host not in master list during IP address calculation!");
string[] bits = range_start.Split('.');
return string.Format("{0}.{1}.{2}.{3}", bits[0], bits[1], bits[2], int.Parse(bits[3]) + i);
}
}
}