public XenOvfTransport.DiskStream Connect(XenAPI.Session xenSession, string vdiuuid, bool read_only)
{
int iSCSIConnectRetry = Properties.Settings.Default.iSCSIConnectRetry;
bool iSCSIConnected = false;
StartiScsiTarget(xenSession, vdiuuid, read_only);
string ipaddress = ParsePluginRecordFor("ip");
int ipport = Convert.ToInt32(ParsePluginRecordFor("port"));
string targetGroupTag = ParsePluginRecordFor("isci_lun");
if (ipaddress == null)
{
throw new NullReferenceException(Messages.ISCSI_ERROR_NO_IPADDRESS);
}
string username = ParsePluginRecordFor("username");
string password = ParsePluginRecordFor("password");
Initiator initiator = new Initiator();
if (username != null && password != null)
{
initiator.SetCredentials(username, password);
}
while (!iSCSIConnected && iSCSIConnectRetry > 0)
{
if (Cancel)
{
throw new OperationCanceledException();
}
try
{
Log.Debug(Messages.FILES_TRANSPORT_SETUP, vdiuuid);
TargetAddress ta = new TargetAddress(ipaddress, ipport, targetGroupTag);
TargetInfo[] targets = initiator.GetTargets(ta);
Log.Info("iSCSI.Connect found {0} targets, connecting to: {1}", targets.Length, targets[0].Name);
_iscsisession = initiator.ConnectTo(targets[0]);
iSCSIConnected = true;
}
catch (Exception ex)
{
Log.Error("{0} {1}", Messages.ISCSI_ERROR, ex.Message);
Thread.Sleep(new TimeSpan(0, 0, 5));
iSCSIConnectRetry--;
}
}
if (!iSCSIConnected)
{
throw new Exception(Messages.ISCSI_ERROR);
}
long lun = 0;
try
{
LunInfo[] luns = _iscsisession.GetLuns();
if (_newscsi)
{
long lunIdx = Convert.ToInt32(ParsePluginRecordFor("iscsi_lun"));
lun = luns[lunIdx].Lun;
}
Log.Info("iSCSI.Connect found {0} luns, looking for block storage.", luns.Length);
foreach (LunInfo iLun in luns)
{
if (iLun.DeviceType == LunClass.BlockStorage)
{
if (_newscsi && iLun.Lun == lun)
{
break;
}
lun = iLun.Lun;
break;
}
}
}
catch (Exception)
{
Log.Error("Could not determin LUN");
throw;
}
Log.Info("iSCSI.Connect, found on lun: {0}", lun);
try
{
iDisk = _iscsisession.OpenDisk(lun);
// Use our own DiskStream class to workaround a bug in DiscUtils.DiskStream.
return(new XenOvfTransport.DiskStream(_iscsisession, lun, (read_only ? FileAccess.Read : FileAccess.ReadWrite)));
}
catch (Exception ex)
{
Log.Error("{0} {1}", Messages.ISCSI_ERROR_CANNOT_OPEN_DISK, ex.Message);
throw new Exception(Messages.ISCSI_ERROR_CANNOT_OPEN_DISK, ex);
}
}
public DiskStream Connect(XenAPI.Session xenSession, string vdiuuid, bool read_only)
{
StartiScsiTarget(xenSession, vdiuuid, read_only);
string ipaddress, port, targetGroupTag, username, password;
if (!TryParsePluginRecordFor(_pluginrecord, "ip", out ipaddress))
{
throw new Exception(Messages.ISCSI_ERROR_NO_IPADDRESS);
}
TryParsePluginRecordFor(_pluginrecord, "port", out port);
int ipport = Convert.ToInt32(port);
TryParsePluginRecordFor(_pluginrecord, "isci_lun", out targetGroupTag);
TryParsePluginRecordFor(_pluginrecord, "username", out username);
TryParsePluginRecordFor(_pluginrecord, "password", out password);
Initiator initiator = new Initiator();
if (username != null && password != null)
{
initiator.SetCredentials(username, password);
}
int iSCSIConnectRetry = Properties.Settings.Default.iSCSIConnectRetry;
bool iSCSIConnected = false;
while (!iSCSIConnected && iSCSIConnectRetry > 0)
{
if (Cancel)
{
throw new OperationCanceledException();
}
try
{
log.DebugFormat("Connecting virtual disk {0}... ", vdiuuid);
TargetAddress ta = new TargetAddress(ipaddress, ipport, targetGroupTag);
TargetInfo[] targets = initiator.GetTargets(ta);
log.InfoFormat("iSCSI.Connect found {0} targets, connecting to: {1}", targets.Length, targets[0].Name);
_iscsisession = initiator.ConnectTo(targets[0]);
iSCSIConnected = true;
}
catch (Exception ex)
{
log.Error($"Failed to connect to VDI {vdiuuid} over iSCSI.", ex);
Thread.Sleep(new TimeSpan(0, 0, 5));
iSCSIConnectRetry--;
}
}
if (!iSCSIConnected)
{
throw new Exception(Messages.ISCSI_ERROR);
}
long lun = 0;
try
{
LunInfo[] luns = _iscsisession.GetLuns();
if (_newscsi)
{
string idx;
TryParsePluginRecordFor(_pluginrecord, "iscsi_lun", out idx);
long lunIdx = Convert.ToInt32(idx);
lun = luns[lunIdx].Lun;
}
log.InfoFormat("iSCSI.Connect found {0} luns, looking for block storage.", luns.Length);
foreach (LunInfo iLun in luns)
{
if (iLun.DeviceType == LunClass.BlockStorage)
{
if (_newscsi && iLun.Lun == lun)
{
break;
}
lun = iLun.Lun;
break;
}
}
}
catch (Exception e)
{
log.Error("Could not determine LUN", e);
throw;
}
log.InfoFormat("iSCSI.Connect, found on lun: {0}", lun);
try
{
iDisk = _iscsisession.OpenDisk(lun);
// Use our own DiskStream class to workaround a bug in DiscUtils.DiskStream.
return(new DiskStream(_iscsisession, lun, (read_only ? FileAccess.Read : FileAccess.ReadWrite)));
}
catch (Exception ex)
{
log.Error("Failed to open virtual disk.", ex);
throw new Exception(Messages.ISCSI_ERROR_CANNOT_OPEN_DISK, ex);
}
}
protected override void DoRun()
{
Initiator initiator = new Initiator();
if (!string.IsNullOrEmpty(UserName))
{
initiator.SetCredentials(UserName, Password);
}
bool foundTargets = false;
try
{
foreach (var target in initiator.GetTargets(_portalAddress.Value))
{
foundTargets = true;
Console.WriteLine("Target: " + target);
if (Verbose)
{
Console.WriteLine(" Name: " + target.Name);
foreach (var addr in target.Addresses)
{
Console.WriteLine(" Address: " + addr + " <" + addr.ToUri() + ">");
}
Console.WriteLine();
}
using (Session s = initiator.ConnectTo(target))
{
foreach (var lun in s.GetLuns())
{
Console.WriteLine(lun.DeviceType + ": ");
string[] uris = lun.GetUris();
if (uris.Length > 1)
{
for (int i = 0; i < uris.Length; ++i)
{
Console.WriteLine(" URI[" + i + "]: " + uris[i]);
}
}
else if (uris.Length > 0)
{
Console.WriteLine(" URI: " + uris[0]);
}
if (Verbose)
{
Console.WriteLine(" LUN: " + lun.Lun.ToString("x16", CultureInfo.InvariantCulture));
Console.WriteLine(" Device Type: " + lun.DeviceType);
Console.WriteLine(" Removeable: " + (lun.Removable ? "Yes" : "No"));
Console.WriteLine(" Vendor: " + lun.VendorId);
Console.WriteLine(" Product: " + lun.ProductId);
Console.WriteLine(" Revision: " + lun.ProductRevision);
Console.WriteLine();
}
}
}
}
if (!foundTargets)
{
Console.WriteLine("No targets found");
}
}
catch (LoginException)
{
Console.WriteLine("ERROR: Need credentials, or the credentials specified were invalid");
}
}