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);
}
}
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 override VirtualDisk OpenDisk(FileAccess access)
{
return(_session.OpenDisk(_lunInfo.Lun, access));
}
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);
}
}