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); } }