mirror of
https://github.com/xcp-ng/xenadmin.git
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539 lines
20 KiB
C#
539 lines
20 KiB
C#
/* 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.Threading;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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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.Dialogs
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{
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public partial class IscsiDeviceConfigDialog : XenDialogBase
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{
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private ISCSIPopulateLunsAction IscsiPopulateLunsAction;
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private ISCSIPopulateIQNsAction IscsiPopulateIqnsAction;
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private bool LunInUse = false;
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private readonly Dictionary<String, ISCSIInfo> LunMap = new Dictionary<String, ISCSIInfo>();
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private readonly ToolTip TargetIqnToolTip = new ToolTip();
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private readonly ToolTip TargetLunToolTip = new ToolTip();
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public IscsiDeviceConfigDialog()
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{
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InitializeComponent();
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}
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public IscsiDeviceConfigDialog(IXenConnection connection)
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: base(connection)
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{
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InitializeComponent();
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labelIscsiInvalidHost.Visible = false;
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// IQN's can be very long, so we will show the value as a mouse over tooltip.
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// Initialize the tooltip here.
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TargetIqnToolTip.Active = true;
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TargetIqnToolTip.AutomaticDelay = 0;
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TargetIqnToolTip.AutoPopDelay = 50000;
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TargetIqnToolTip.InitialDelay = 50;
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TargetIqnToolTip.ReshowDelay = 50;
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TargetIqnToolTip.ShowAlways = true;
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// Initialize LUN's tooltip here.
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TargetLunToolTip.Active = true;
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TargetLunToolTip.AutomaticDelay = 0;
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TargetLunToolTip.AutoPopDelay = 50000;
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TargetLunToolTip.InitialDelay = 50;
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TargetLunToolTip.ReshowDelay = 50;
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TargetLunToolTip.ShowAlways = true;
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}
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private void textBoxIscsiHost_TextChanged(object sender, EventArgs e)
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{
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labelIscsiInvalidHost.Visible = false;
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IScsiParams_TextChanged(null, null);
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}
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private void IscsiUseChapCheckBox_CheckedChanged(object sender, System.EventArgs e)
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{
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groupBoxChap.Enabled = IscsiUseChapCheckBox.Checked;
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foreach (Control c in groupBoxChap.Controls)
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{
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c.Enabled = IscsiUseChapCheckBox.Checked;
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}
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lunInUseLabel.Text = "";
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ChapSettings_Changed(null, null);
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}
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/// <summary>
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/// Called when any of the iSCSI filer params change: resets the IQNs/LUNs.
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/// Must be called on the event thread.
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/// </summary>
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private void IScsiParams_TextChanged(object sender, EventArgs e)
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{
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Program.AssertOnEventThread();
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// User has changed filer hostname/username/password - clear IQN/LUN boxes
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comboBoxIscsiIqns.Items.Clear();
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comboBoxIscsiIqns.Enabled = false;
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// Cancel pending IQN/LUN scans
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if (IscsiPopulateIqnsAction != null)
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{
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IscsiPopulateIqnsAction.Cancel();
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}
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ChapSettings_Changed(null, null);
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}
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private void ChapSettings_Changed(object sender, EventArgs e)
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{
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comboBoxIscsiLuns.Items.Clear();
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comboBoxIscsiLuns.Text = "";
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comboBoxIscsiLuns.Enabled = false;
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if (IscsiPopulateLunsAction != null)
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{
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IscsiPopulateLunsAction.Cancel();
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}
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UpdateButtons();
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}
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private void UpdateButtons()
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{
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UInt16 i;
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bool portValid = UInt16.TryParse(textBoxIscsiPort.Text, out i);
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buttonIscsiPopulateIQNs.Enabled =
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!String.IsNullOrEmpty(getIscsiHost())
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&& portValid;
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buttonIscsiPopulateLUNs.Enabled =
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!String.IsNullOrEmpty(getIscsiHost())
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&& !String.IsNullOrEmpty(getIscsiIQN())
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&& portValid;
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buttonOk.Enabled = !String.IsNullOrEmpty(getIscsiLUN()) && !LunInUse;
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}
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private String getIscsiHost()
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{
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// If the user has selected an IQN, use the host from that IQN (due to multi-homing,
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// this may differ from the host they first entered). Otherwise use the host
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// they first entered,
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ToStringWrapper<IScsiIqnInfo> wrapper = comboBoxIscsiIqns.SelectedItem as ToStringWrapper<IScsiIqnInfo>;
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if (wrapper != null)
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return wrapper.item.IpAddress;
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return textBoxIscsiHost.Text.Trim();
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}
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private UInt16 getIscsiPort()
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{
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ToStringWrapper<IScsiIqnInfo> wrapper = comboBoxIscsiIqns.SelectedItem as ToStringWrapper<IScsiIqnInfo>;
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if (wrapper != null)
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return wrapper.item.Port;
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// No combobox item was selected
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UInt16 port;
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if (UInt16.TryParse(textBoxIscsiPort.Text, out port))
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{
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return port;
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}
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return Util.DEFAULT_ISCSI_PORT;
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}
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private String getIscsiIQN()
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{
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ToStringWrapper<IScsiIqnInfo> wrapper = comboBoxIscsiIqns.SelectedItem as ToStringWrapper<IScsiIqnInfo>;
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if (wrapper == null)
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return "";
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return wrapper.item.TargetIQN;
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}
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private String getIscsiLUN()
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{
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return comboBoxIscsiLuns.Text;
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}
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private void comboBoxIscsiIqns_SelectedIndexChanged(object sender, EventArgs e)
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{
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ToStringWrapper<IScsiIqnInfo> wrapper = comboBoxIscsiIqns.SelectedItem as ToStringWrapper<IScsiIqnInfo>;
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// Keep the IScsiTargetIqnComboBox tooltip in sync with the selected item
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if (wrapper != null)
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{
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TargetIqnToolTip.SetToolTip(comboBoxIscsiIqns, wrapper.ToString());
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}
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else
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{
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TargetIqnToolTip.SetToolTip(comboBoxIscsiIqns, "");
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}
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// Clear the LUN map and ComboBox because the user has changed the IQN. The user
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// must re-discover the LUNs for the new IQN.
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ClearLunMapAndCombo();
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}
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private void comboBoxIscsiLuns_SelectedIndexChanged(object sender, EventArgs e)
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{
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var selectedLun = comboBoxIscsiLuns.SelectedItem as string;
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// Keep the tooltip in sync with the selected item
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if (selectedLun != null)
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{
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TargetLunToolTip.SetToolTip(comboBoxIscsiLuns, selectedLun);
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}
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else
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{
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TargetLunToolTip.SetToolTip(comboBoxIscsiLuns, "");
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}
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try
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{
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SR sr = UniquenessCheck(ConnectionsManager.XenConnectionsCopy);
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// LUN is not in use if sr != null
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LunInUse = sr != null;
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if (sr == null)
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{
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lunInUseLabel.Text = "";
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return;
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}
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Pool pool = Helpers.GetPool(sr.Connection);
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if (pool != null)
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{
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lunInUseLabel.Text = String.Format(Messages.NEWSR_LUN_IN_USE_ON_POOL,
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sr.Name, pool.Name);
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return;
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}
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Host master = Helpers.GetMaster(sr.Connection);
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if (master != null)
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{
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lunInUseLabel.Text = String.Format(Messages.NEWSR_LUN_IN_USE_ON_SERVER,
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sr.Name, master.Name);
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return;
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}
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lunInUseLabel.Text = Messages.NEWSR_LUN_IN_USE;
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}
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finally
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{
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UpdateButtons();
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}
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}
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private void ClearLunMapAndCombo()
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{
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// Clear LUNs as they may no longer be valid
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comboBoxIscsiLuns.Items.Clear();
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comboBoxIscsiLuns.Text = "";
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comboBoxIscsiLuns.Enabled = false;
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LunMap.Clear();
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LunInUse = false;
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lunInUseLabel.Text = "";
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UpdateButtons();
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}
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/// <summary>
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/// Check the current config of the iSCSI sr in the wizard is unique across
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/// all active connections.
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/// </summary>
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/// <returns>SR that uses this config if not unique, null if unique</returns>
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private SR UniquenessCheck(List<IXenConnection> connections)
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{
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// Check currently selected lun is unique amongst other connected hosts.
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foreach (IXenConnection connection in connections)
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{
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foreach (SR sr in connection.Cache.SRs)
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{
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if (sr.GetSRType(false) != SR.SRTypes.lvmoiscsi)
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continue;
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if (sr.PBDs.Count < 1)
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continue;
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PBD pbd = connection.Resolve(sr.PBDs[0]);
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if (pbd == null)
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continue;
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if (UniquenessCheckMiami(connection, pbd))
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return sr;
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}
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}
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return null;
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}
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/// <summary>
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/// Check currently LUN against miami host
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/// </summary>
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/// <param name="connection"></param>
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/// <param name="pbd"></param>
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/// <returns></returns>
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private bool UniquenessCheckMiami(IXenConnection connection, PBD pbd)
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{
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if (!pbd.device_config.ContainsKey(SCSIID))
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return false;
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String scsiID = pbd.device_config[SCSIID];
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String myLUN = getIscsiLUN();
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if (!LunMap.ContainsKey(myLUN))
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return false;
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ISCSIInfo info = LunMap[myLUN];
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return info.ScsiID == scsiID;
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}
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private const String TARGET = "target";
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private const String PORT = "port";
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private const String TARGETIQN = "targetIQN";
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private const String LUNSERIAL = "LUNSerial";
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private const String SCSIID = "SCSIid";
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private const String LUNID = "LUNid";
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private const String CHAPUSER = "chapuser";
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private const String CHAPPASSWORD = "chappassword";
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public Dictionary<String, String> DeviceConfig
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{
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get
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{
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Dictionary<String, String> dconf = new Dictionary<String, String>();
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ToStringWrapper<IScsiIqnInfo> iqn = comboBoxIscsiIqns.SelectedItem as ToStringWrapper<IScsiIqnInfo>;
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if (iqn == null)
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return null;
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// Reset target IP address to home address specified in IQN scan.
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// Allows multi-homing - see CA-11607
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dconf[TARGET] = iqn.item.IpAddress;
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dconf[PORT] = iqn.item.Port.ToString();
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dconf[TARGETIQN] = getIscsiIQN();
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if (!LunMap.ContainsKey(getIscsiLUN()))
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return null;
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ISCSIInfo info = LunMap[getIscsiLUN()];
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if (info.LunID == -1)
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{
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dconf[LUNSERIAL] = info.Serial;
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}
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else
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{
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dconf[SCSIID] = info.ScsiID;
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}
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if (IscsiUseChapCheckBox.Checked)
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{
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dconf[CHAPUSER] = IScsiChapUserTextBox.Text;
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dconf[CHAPPASSWORD] = IScsiChapSecretTextBox.Text;
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}
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return dconf;
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}
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}
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private void buttonIscsiPopulateIQNs_Click(object sender, EventArgs e)
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{
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buttonIscsiPopulateIQNs.Enabled = false;
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// For this button to be enabled, we must be Miami or newer
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comboBoxIscsiIqns.Items.Clear();
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// Clear LUNs as they may no longer be valid
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ClearLunMapAndCombo();
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// Disable the Discover LUNs button because we have no IQNs
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buttonIscsiPopulateLUNs.Enabled = false;
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// Cancel any LUN scan in progress, as it is no longer meaningful
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if (IscsiPopulateLunsAction != null)
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{
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IscsiPopulateLunsAction.Cancel();
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}
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if (IscsiUseChapCheckBox.Checked)
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{
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IscsiPopulateIqnsAction = new ISCSIPopulateIQNsAction(connection,
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getIscsiHost(), getIscsiPort(), IScsiChapUserTextBox.Text, IScsiChapSecretTextBox.Text);
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}
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else
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{
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IscsiPopulateIqnsAction = new ISCSIPopulateIQNsAction(connection,
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getIscsiHost(), getIscsiPort(), null, null);
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}
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IscsiPopulateIqnsAction.Completed += new EventHandler<EventArgs>(IscsiPopulateIqnsAction_Completed);
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Dialogs.ActionProgressDialog dialog = new Dialogs.ActionProgressDialog(
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IscsiPopulateIqnsAction, ProgressBarStyle.Marquee);
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dialog.ShowCancel = true;
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dialog.ShowDialog(this);
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}
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private void IscsiPopulateIqnsAction_Completed(object sender, EventArgs e)
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{
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Program.Invoke(this, (System.Threading.WaitCallback)IscsiPopulateIqnsAction_Completed_, sender);
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}
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private void IscsiPopulateIqnsAction_Completed_(object o)
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{
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Program.AssertOnEventThread();
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ISCSIPopulateIQNsAction action = (ISCSIPopulateIQNsAction)o;
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if (action.Succeeded)
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{
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if (action.IQNs.Length == 0)
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{
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// Do nothing: ActionProgressDialog will show Messages.NEWSR_NO_IQNS_FOUND
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}
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else
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{
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int width = comboBoxIscsiIqns.Width;
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foreach (Actions.IScsiIqnInfo iqnInfo in action.IQNs)
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{
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if (!String.IsNullOrEmpty(iqnInfo.TargetIQN))
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{
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String toString = String.Format("{0} ({1}:{2})", iqnInfo.TargetIQN, iqnInfo.IpAddress, iqnInfo.Port);
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comboBoxIscsiIqns.Items.Add(new ToStringWrapper<IScsiIqnInfo>(iqnInfo, toString));
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width = Math.Max(width, Drawing.MeasureText(toString, comboBoxIscsiIqns.Font).Width);
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}
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}
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// Set the combo box dropdown width to accommodate the widest item (within reason)
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comboBoxIscsiIqns.DropDownWidth = Math.Min(width, Int16.MaxValue);
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if (comboBoxIscsiIqns.Items.Count > 0)
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{
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comboBoxIscsiIqns.SelectedItem = comboBoxIscsiIqns.Items[0];
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comboBoxIscsiIqns.Enabled = true;
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buttonIscsiPopulateLUNs.Enabled = true;
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}
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}
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}
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else
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{
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Failure failure = action.Exception as Failure;
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if (failure != null && failure.ErrorDescription[0] == "SR_BACKEND_FAILURE_140")
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{
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labelIscsiInvalidHost.Visible = true;
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textBoxIscsiHost.Focus();
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}
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}
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buttonIscsiPopulateIQNs.Enabled = true;
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}
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private void buttonIscsiPopulateLUNs_Click(object sender, EventArgs e)
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{
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buttonIscsiPopulateLUNs.Enabled = false;
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comboBoxIscsiLuns.Items.Clear();
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LunMap.Clear();
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if (IscsiUseChapCheckBox.Checked)
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{
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IscsiPopulateLunsAction = new Actions.ISCSIPopulateLunsAction(connection,
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getIscsiHost(), getIscsiPort(), getIscsiIQN(), IScsiChapUserTextBox.Text, IScsiChapSecretTextBox.Text);
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}
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else
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{
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IscsiPopulateLunsAction = new Actions.ISCSIPopulateLunsAction(connection,
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getIscsiHost(), getIscsiPort(), getIscsiIQN(), null, null);
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}
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IscsiPopulateLunsAction.Completed += IscsiPopulateLunsAction_Completed;
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ActionProgressDialog dialog =
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new ActionProgressDialog(IscsiPopulateLunsAction, ProgressBarStyle.Marquee);
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dialog.ShowCancel = true;
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dialog.ShowDialog(this);
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}
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private void IscsiPopulateLunsAction_Completed(object sender, EventArgs e)
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{
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Program.Invoke(this, (WaitCallback)IscsiPopulateLunsAction_Completed_, sender);
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}
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private void IscsiPopulateLunsAction_Completed_(object o)
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{
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Program.AssertOnEventThread();
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ISCSIPopulateLunsAction action = (ISCSIPopulateLunsAction)o;
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buttonIscsiPopulateLUNs.Enabled = true;
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if (!action.Succeeded)
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{
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Failure failure = action.Exception as Failure;
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if (failure != null && failure.ErrorDescription[0] == "SR_BACKEND_FAILURE_140")
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{
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labelIscsiInvalidHost.Visible = true;
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textBoxIscsiHost.Focus();
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}
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return;
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}
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if (action.LUNs.Length == 0)
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{
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// Do nothing: ActionProgressDialog will show Messages.NEWSR_NO_LUNS_FOUND
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}
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else
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{
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int width = comboBoxIscsiLuns.Width;
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foreach (Actions.ISCSIInfo i in action.LUNs)
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{
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String label = "LUN";
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if (i.LunID != -1)
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label += String.Format(" {0}", i.LunID);
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if (i.Serial != "")
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label += String.Format(": {0}", i.Serial);
|
|
if (i.Size >= 0)
|
|
label += String.Format(": {0}", Util.DiskSizeString(i.Size));
|
|
if (i.Vendor != "")
|
|
label += String.Format(" ({0})", i.Vendor);
|
|
comboBoxIscsiLuns.Items.Add(label);
|
|
LunMap.Add(label, i);
|
|
|
|
width = Math.Max(width, Drawing.MeasureText(label, comboBoxIscsiLuns.Font).Width);
|
|
}
|
|
comboBoxIscsiLuns.SelectedItem = comboBoxIscsiLuns.Items[0];
|
|
comboBoxIscsiLuns.Enabled = true;
|
|
|
|
// Set the combo box dropdown width to accommodate the widest item (within reason)
|
|
comboBoxIscsiLuns.DropDownWidth = Math.Min(width, Int16.MaxValue);
|
|
}
|
|
|
|
UpdateButtons();
|
|
}
|
|
}
|
|
}
|