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