public NspiRpcClientConnection GetNspiRpcClientConnection()
{
string text = base.ServerSettings.PreferredGlobalCatalog(base.SessionSettings.GetAccountOrResourceForestFqdn());
string domainController;
if (!string.IsNullOrEmpty(text))
{
domainController = text;
}
else
{
PooledLdapConnection pooledLdapConnection = null;
try
{
pooledLdapConnection = ConnectionPoolManager.GetConnection(ConnectionType.GlobalCatalog, base.SessionSettings.GetAccountOrResourceForestFqdn());
domainController = pooledLdapConnection.ServerName;
}
finally
{
if (pooledLdapConnection != null)
{
pooledLdapConnection.ReturnToPool();
}
}
}
return(NspiRpcClientConnection.GetNspiRpcClientConnection(domainController));
}
public static NspiRpcClientConnection GetNspiRpcClientConnection(string domainController)
{
NspiRpcClientConnection nspiRpcClientConnection = new NspiRpcClientConnection();
int hashCode = nspiRpcClientConnection.GetHashCode();
int num = 0;
while (!nspiRpcClientConnection.bound)
{
try
{
NspiRpcClientConnection.TraceDebug(hashCode, "Creating NspiRpcClient and attempting bind to domain controller {0}", new object[]
{
domainController
});
nspiRpcClientConnection.nspiRpcClient = new NspiRpcClient(domainController, "ncacn_ip_tcp", null);
using (SafeRpcMemoryHandle safeRpcMemoryHandle = new SafeRpcMemoryHandle(36))
{
using (SafeRpcMemoryHandle safeRpcMemoryHandle2 = new SafeRpcMemoryHandle(16))
{
IntPtr ptr = safeRpcMemoryHandle.DangerousGetHandle();
Marshal.WriteInt32(ptr, 0, 0);
Marshal.WriteInt32(ptr, 4, 0);
Marshal.WriteInt32(ptr, 8, 0);
Marshal.WriteInt32(ptr, 12, 0);
Marshal.WriteInt32(ptr, 16, 0);
Marshal.WriteInt32(ptr, 20, 0);
Marshal.WriteInt32(ptr, 24, 1252);
Marshal.WriteInt32(ptr, 28, 1033);
Marshal.WriteInt32(ptr, 32, 1033);
int num2 = nspiRpcClientConnection.nspiRpcClient.Bind(0, safeRpcMemoryHandle.DangerousGetHandle(), safeRpcMemoryHandle2.DangerousGetHandle());
if (num2 != 0)
{
NspiRpcClientConnection.TraceError(hashCode, "Bind returned non-zero SCODE {0}", new object[]
{
num2
});
throw new NspiFailureException(num2);
}
NspiRpcClientConnection.TraceDebug(hashCode, "Bind to domain controller {0} succeeded", new object[]
{
domainController
});
nspiRpcClientConnection.bound = true;
NspiRpcClientConnection.PerfCounterInstance.NumberOfOpenConnections.Increment();
}
}
}
catch (RpcException ex)
{
num++;
if (ex.ErrorCode != 1753 && ex.ErrorCode != 1727)
{
NspiRpcClientConnection.TraceError(hashCode, "Caught RpcException \"{0}\" with error code {1}. We will not retry the bind.", new object[]
{
ex.Message,
ex.ErrorCode
});
throw new ADOperationException(DirectoryStrings.NspiRpcError(ex.Message), ex);
}
if (num >= 3)
{
NspiRpcClientConnection.TraceError(hashCode, "Caught RpcException \"{0}\" with error code {1}. Out of retries; giving up.", new object[]
{
ex.Message,
ex.ErrorCode
});
throw new ADTransientException(DirectoryStrings.NspiRpcError(ex.Message), ex);
}
NspiRpcClientConnection.TraceWarning(hashCode, "Caught RpcException \"{0}\" with error code {1}. We will retry the bind; this is retry {2}.", new object[]
{
ex.Message,
ex.ErrorCode,
num
});
Thread.Sleep(1000);
}
finally
{
if (nspiRpcClientConnection != null && !nspiRpcClientConnection.bound)
{
NspiRpcClientConnection.TraceDebug(hashCode, "Disposing the NspiRpcClient because we did not successfully bind", new object[0]);
nspiRpcClientConnection.nspiRpcClient.Dispose();
nspiRpcClientConnection.nspiRpcClient = null;
}
}
}
return(nspiRpcClientConnection);
}
public virtual void Dispose()
{
NspiRpcClientConnection.TraceDebug(this.GetHashCode(), "Disposing by calling Dispose()", new object[0]);
this.Dispose(true);
GC.SuppressFinalize(this);
}