private DagNetConfig FetchConfigInternal()
{
DagNetConfig result;
lock (this.dagNetConfigLock)
{
string text;
if (DagNetEnvironment.TryRegistryRead <string>("DagNetConfig", null, out text) == null && !string.IsNullOrEmpty(text))
{
int hashCode = text.GetHashCode();
if (this.serializedNetConfig == null || this.serializedNetConfigHashCode != hashCode)
{
DagNetEnvironment.Tracer.TraceDebug((long)this.GetHashCode(), "NetConfig change detected.", new object[0]);
Exception ex;
DagNetConfig dagNetConfig = DagNetEnvironment.TryDeserializeConfig(text, out ex);
if (dagNetConfig != null)
{
this.currentNetConfig = dagNetConfig;
}
this.serializedNetConfig = text;
this.serializedNetConfigHashCode = hashCode;
}
}
if (this.currentNetConfig == null)
{
this.currentNetConfig = new DagNetConfig();
}
result = this.currentNetConfig;
}
return(result);
}
private void LoadMapIfNeeded()
{
DagNetConfig dagNetConfig = DagNetEnvironment.FetchNetConfig();
if (!object.ReferenceEquals(dagNetConfig, this.netConfig))
{
this.LoadMap(dagNetConfig);
}
}
public static DagNetConfig FetchLastKnownNetConfig()
{
DagNetConfig dagNetConfig = DagNetEnvironment.Instance.currentNetConfig;
if (dagNetConfig == null)
{
dagNetConfig = DagNetEnvironment.Instance.FetchConfigInternal();
}
return(dagNetConfig);
}
public static Exception PublishDagNetConfig(DagNetConfig cfg)
{
Exception result;
try
{
string persistString = cfg.Serialize();
result = DagNetEnvironment.PublishDagNetConfig(persistString);
}
catch (SerializationException ex)
{
result = ex;
}
return(result);
}
public void ApplyNetworkPolicy(DagNetConfig dagConfig)
{
this.Encrypt = false;
switch (dagConfig.NetworkEncryption)
{
case NetworkOption.Disabled:
this.Encrypt = false;
break;
case NetworkOption.Enabled:
this.Encrypt = true;
break;
case NetworkOption.InterSubnetOnly:
this.Encrypt = this.CrossSubnet;
break;
case NetworkOption.SeedOnly:
this.Encrypt = (this.Purpose == NetworkPath.ConnectionPurpose.Seeding);
break;
}
this.Compress = false;
if (!Parameters.CurrentValues.LogShipCompressionDisable)
{
switch (dagConfig.NetworkCompression)
{
case NetworkOption.Disabled:
this.Compress = false;
return;
case NetworkOption.Enabled:
this.Compress = true;
return;
case NetworkOption.InterSubnetOnly:
this.Compress = this.CrossSubnet;
return;
case NetworkOption.SeedOnly:
this.Compress = (this.Purpose == NetworkPath.ConnectionPurpose.Seeding);
break;
default:
return;
}
}
}
private static DagNetConfig TryDeserializeConfig(string serializedConfig, out Exception ex)
{
DagNetConfig result = null;
ex = null;
try
{
result = DagNetConfig.Deserialize(serializedConfig);
}
catch (SerializationException ex2)
{
ex = ex2;
DagNetEnvironment.Tracer.TraceError(0L, "TryDeserializeConfig failed {0}", new object[]
{
ex
});
}
return(result);
}
private void LoadMap(DagNetConfig cfg)
{
this.netConfig = cfg;
Dictionary <string, DagNetChooser.OutboundNetInfo> dictionary = new Dictionary <string, DagNetChooser.OutboundNetInfo>(cfg.Networks.Count);
foreach (DagNetwork dagNetwork in cfg.Networks)
{
if (dagNetwork.ReplicationEnabled)
{
DagNetChooser.OutboundNetInfo outboundNetInfo = new DagNetChooser.OutboundNetInfo();
outboundNetInfo.Network = dagNetwork;
dictionary.Add(dagNetwork.Name, outboundNetInfo);
}
}
foreach (DagNode dagNode in cfg.Nodes)
{
foreach (DagNode.Nic nic in dagNode.Nics)
{
IPAddress ipaddress = NetworkUtil.ConvertStringToIpAddress(nic.IpAddress);
DagNetChooser.OutboundNetInfo outboundNetInfo2;
if (ipaddress != null && dictionary.TryGetValue(nic.NetworkName, out outboundNetInfo2))
{
if (MachineName.IsEffectivelyLocalComputerName(dagNode.Name))
{
outboundNetInfo2.SourceIPAddr = ipaddress;
}
else
{
if (outboundNetInfo2.Targets == null)
{
outboundNetInfo2.Targets = new Dictionary <string, DagNetChooser.OutboundNetInfo.TargetNicInfo>(cfg.Nodes.Count, MachineName.Comparer);
}
DagNetChooser.OutboundNetInfo.TargetNicInfo targetNicInfo;
if (outboundNetInfo2.Targets.TryGetValue(dagNode.Name, out targetNicInfo))
{
DagNetChooser.Tracer.TraceError((long)this.GetHashCode(), "LoadMap found dup ipAddr for node {0} on net {1} ip1 {2} ip2 {3}", new object[]
{
dagNode.Name,
nic.NetworkName,
targetNicInfo.IPAddr,
nic.IpAddress
});
}
else
{
targetNicInfo = new DagNetChooser.OutboundNetInfo.TargetNicInfo();
targetNicInfo.IPAddr = ipaddress;
targetNicInfo.IsCrossSubnet = true;
targetNicInfo.TargetPort = this.netConfig.ReplicationPort;
if (dagNode.ReplicationPort != 0)
{
targetNicInfo.TargetPort = dagNode.ReplicationPort;
}
outboundNetInfo2.Targets.Add(dagNode.Name, targetNicInfo);
}
}
}
}
}
List <DagNetChooser.OutboundNetInfo> list = new List <DagNetChooser.OutboundNetInfo>(cfg.Networks.Count);
int num = 0;
foreach (DagNetChooser.OutboundNetInfo outboundNetInfo3 in dictionary.Values)
{
if (outboundNetInfo3.SourceIPAddr != null && outboundNetInfo3.Targets != null)
{
if (outboundNetInfo3.Network.IsDnsMapped)
{
list.Add(outboundNetInfo3);
}
else
{
list.Insert(0, outboundNetInfo3);
num++;
}
}
}
this.roundRobinIndex = 0;
this.outboundNets = list.ToArray();
if (num > 0)
{
this.roundRobinLimit = num;
return;
}
this.roundRobinLimit = this.outboundNets.Length;
}
public DagNetRoute[] BuildRoutes(string targetServer, bool dnsOnly, string chooseNetworkByName, out DagNetConfig dagNetConfig)
{
lock (this)
{
this.LoadMapIfNeeded();
DagNetChooser.OutboundNetInfo[] array = this.FetchNetworkOrdering();
if (array.Length > 0)
{
List <DagNetRoute> list = new List <DagNetRoute>(array.Length);
foreach (DagNetChooser.OutboundNetInfo outboundNetInfo in array)
{
DagNetChooser.OutboundNetInfo.TargetNicInfo targetNicInfo;
if (outboundNetInfo.Targets.TryGetValue(targetServer, out targetNicInfo) && (!dnsOnly || outboundNetInfo.Network.IsDnsMapped) && (chooseNetworkByName == null || StringUtil.IsEqualIgnoreCase(chooseNetworkByName, outboundNetInfo.Network.Name)))
{
list.Add(new DagNetRoute
{
NetworkName = outboundNetInfo.Network.Name,
SourceIPAddr = outboundNetInfo.SourceIPAddr,
TargetPort = targetNicInfo.TargetPort,
TargetIPAddr = targetNicInfo.IPAddr,
IsCrossSubnet = targetNicInfo.IsCrossSubnet
});
if (dnsOnly || chooseNetworkByName != null)
{
break;
}
}
}
dagNetConfig = this.netConfig;
return(list.ToArray());
}
}
dagNetConfig = this.netConfig;
return(null);
}
public DagNetRoute[] BuildRoutes(string targetServer, out DagNetConfig dagNetConfig)
{
return(this.BuildRoutes(targetServer, false, null, out dagNetConfig));
}
public static DagNetRoute[] ProposeRoutes(string targetServer, out DagNetConfig dagNetConfig)
{
DagNetChooser netChooser = DagNetEnvironment.NetChooser;
return(netChooser.BuildRoutes(targetServer, out dagNetConfig));
}
private int GetCurrentReplicationPort()
{
DagNetConfig dagNetConfig = DagNetEnvironment.FetchLastKnownNetConfig();
return(dagNetConfig.ReplicationPort);
}
