private void ManagementSession_StateReported(object sender, StateReportedEventArgs e)
{
var state = SessionStatusType.Error;
string msg = null;
switch (e.State)
{
case OpenVPNStateType.Connecting:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeConnecting;
break;
case OpenVPNStateType.Resolving:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeResolving;
break;
case OpenVPNStateType.TcpConnecting:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeTcpConnecting;
break;
case OpenVPNStateType.Waiting:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeWaiting;
break;
case OpenVPNStateType.Authenticating:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeAuthenticating;
break;
case OpenVPNStateType.GettingConfiguration:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeGettingConfiguration;
break;
case OpenVPNStateType.AssigningIP:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeAssigningIP;
break;
case OpenVPNStateType.AddingRoutes:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeAddingRoutes;
break;
case OpenVPNStateType.Connected:
state = SessionStatusType.Connected;
msg = Resources.Strings.OpenVPNStateTypeConnected;
break;
case OpenVPNStateType.Reconnecting:
state = SessionStatusType.Connecting;
msg = Resources.Strings.OpenVPNStateTypeReconnecting;
break;
case OpenVPNStateType.Exiting:
state = SessionStatusType.Disconnecting;
msg = Resources.Strings.OpenVPNStateTypeExiting;
break;
}
if (!string.IsNullOrEmpty(e.Message))
{
if (msg != null)
{
msg += "\r\n" + e.Message;
}
else
{
msg = e.Message;
}
}
else if (msg == null)
{
msg = "";
}
Wizard.TryInvoke((Action)(() =>
{
StateDescription = msg;
TunnelAddress = e.Tunnel;
IPv6TunnelAddress = e.IPv6Tunnel;
ConnectedAt = e.State == OpenVPNStateType.Connected ? (DateTimeOffset?)e.TimeStamp : null;
// Set State property last, as the whole world is listening on this property to monitor connectivity changes.
// It is important that we have IP addresses and other info already set before rising PropertyChanged event for State.
State = state;
}));
if (e.State == OpenVPNStateType.Reconnecting)
{
switch (e.Message)
{
case "connection-reset": // Connection was reset.
if (ValidTo <= DateTimeOffset.Now)
{
// Client certificate expired. Try with a new client certificate then.
goto case "tls-error";
}
goto default;
case "auth-failure": // Client certificate was deleted/revoked on the server side, or the user is disabled.
case "tls-error": // Client certificate is not compliant with this eduVPN server. Was eduVPN server reinstalled?
// Refresh configuration.
var config = ConnectingProfile.Connect(
Wizard.GetAuthenticatingServer(ConnectingProfile.Server),
true,
ProfileConfig.ContentType,
Window.Abort.Token);
Wizard.TryInvoke((Action)(() => ProfileConfig = config));
IgnoreHoldHint = true;
break;
default:
IgnoreHoldHint = false;
break;
}
ManagementSession.QueueReleaseHold(Window.Abort.Token);
}
}
/// <inheritdoc/>
protected override void Run()
{
Wizard.TryInvoke((Action)(() => Wizard.TaskCount++));
try
{
var propertyUpdater = new DispatcherTimer(
new TimeSpan(0, 0, 0, 1),
DispatcherPriority.Normal,
(object sender, EventArgs e) => _ShowLog?.RaiseCanExecuteChanged(),
Wizard.Dispatcher);
propertyUpdater.Start();
try
{
retry:
// Connect to WireGuard Tunnel Manager Service to activate the tunnel.
using (var managerSession = new eduWireGuard.ManagerService.Session())
{
Wizard.TryInvoke((Action)(() => State = SessionStatusType.Connecting));
try
{
managerSession.Activate(
"eduWGManager" + Properties.Settings.Default.WireGuardTunnelManagerServiceInstance,
TunnelName,
ProfileConfig.Value,
3000,
Window.Abort.Token);
}
catch (OperationCanceledException) { throw; }
catch (Exception ex) { throw new AggregateException(Resources.Strings.ErrorWireGuardTunnelManagerService, ex); }
IPAddress tunnelAddress = null, ipv6TunnelAddress = null;
using (var reader = new StringReader(ProfileConfig.Value))
{
var iface = new eduWireGuard.Interface(reader);
foreach (var a in iface.Addresses)
{
switch (a.Address.AddressFamily)
{
case AddressFamily.InterNetwork:
tunnelAddress = a.Address;
break;
case AddressFamily.InterNetworkV6:
ipv6TunnelAddress = a.Address;
break;
}
}
}
RenewInProgress = new CancellationTokenSource();
Wizard.TryInvoke((Action)(() =>
{
_Renew?.RaiseCanExecuteChanged();
_Disconnect?.RaiseCanExecuteChanged();
Wizard.TaskCount--;
TunnelAddress = tunnelAddress;
IPv6TunnelAddress = ipv6TunnelAddress;
State = SessionStatusType.Connected;
}));
// Wait for a change and update stats.
var ct = CancellationTokenSource.CreateLinkedTokenSource(new CancellationToken[] {
DeactivateInProgress.Token,
RenewInProgress.Token,
Window.Abort.Token
});
do
{
try
{
var cfg = managerSession.GetTunnelConfig(ct.Token);
ulong rxBytes = 0, txBytes = 0;
DateTimeOffset lastHandshake = DateTimeOffset.MinValue;
foreach (var peer in cfg.Peers)
{
rxBytes += peer.RxBytes;
txBytes += peer.TxBytes;
if (lastHandshake < peer.LastHandshake)
{
lastHandshake = peer.LastHandshake;
}
}
Wizard.TryInvoke((Action)(() =>
{
if (ConnectedAt == null && lastHandshake != DateTimeOffset.MinValue)
{
ConnectedAt = lastHandshake;
}
BytesIn = rxBytes;
BytesOut = txBytes;
}));
}
catch
{
Wizard.TryInvoke((Action)(() => ConnectedAt = null));
}
} while (!ct.Token.WaitHandle.WaitOne(5 * 1000));
Wizard.TryInvoke((Action)(() =>
{
Wizard.TaskCount++;
State = SessionStatusType.Disconnecting;
}));
managerSession.Deactivate();
if (DeactivateInProgress.IsCancellationRequested || Window.Abort.IsCancellationRequested)
{
return;
}
}
// Reapply for a profile config.
ConnectingProfile.Server.ResetKeypair();
var config = ConnectingProfile.Connect(
Wizard.GetAuthenticatingServer(ConnectingProfile.Server),
true,
ProfileConfig.ContentType,
Window.Abort.Token);
Wizard.TryInvoke((Action)(() => ProfileConfig = config));
goto retry;
}
finally
{
Wizard.TryInvoke((Action)(() =>
{
// Cleanup status properties.
TunnelAddress = null;
IPv6TunnelAddress = null;
ConnectedAt = null;
BytesIn = null;
BytesOut = null;
}));
propertyUpdater.Stop();
}
}
finally { Wizard.TryInvoke((Action)(() => Wizard.TaskCount--)); }
}
