private static extern RpcError RpcServerInqCallAttributes(IntPtr binding, [In, Out] ref RPC_CALL_ATTRIBUTES_V2 attributes);
private RPC_CALL_ATTRIBUTES_V2 GetCallInfo()
{
if ((int)this._callAttrs.Version != 0)
{
return(this._callAttrs);
}
RPC_CALL_ATTRIBUTES_V2 attributes = new RPC_CALL_ATTRIBUTES_V2();
attributes.Version = 2U;
attributes.Flags = RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_NO_AUTH_REQUIRED;
RpcError rpcError1 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes);
if (rpcError1 == RpcError.RPC_S_INVALID_ARG)
{
attributes.Version = 1U;
rpcError1 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes);
}
if (rpcError1 == RpcError.RPC_S_OK)
{
this._callAttrs = attributes;
this._isAuthenticated = false;
attributes.Flags = RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_IS_CLIENT_LOCAL | RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_NO_AUTH_REQUIRED;
RpcError rpcError2;
if ((rpcError2 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes)) == RpcError.RPC_S_OK)
{
this._callAttrs.IsClientLocal = attributes.IsClientLocal;
if (this._callAttrs.ProtocolSequence == RpcProtoseqType.LRPC)
{
attributes.Flags = RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_CLIENT_PID;
if ((rpcError2 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes)) == RpcError.RPC_S_OK)
{
this._callAttrs.ClientPID = attributes.ClientPID;
}
}
}
if (this._callAttrs.ProtocolSequence != RpcProtoseqType.LRPC)
{
using (Ptr <byte[]> ptr1 = new Ptr <byte[]>(new byte[1024]))
{
RPC_CALL_LOCAL_ADDRESS_V1 data = new RPC_CALL_LOCAL_ADDRESS_V1();
data.Version = 1U;
data.Buffer = ptr1.Handle;
data.BufferSize = 1024;
data.AddressFormat = RpcLocalAddressFormat.Invalid;
this._callAttrs = attributes;
using (Ptr <RPC_CALL_LOCAL_ADDRESS_V1> ptr2 = new Ptr <RPC_CALL_LOCAL_ADDRESS_V1>(data))
{
attributes.CallLocalAddress = ptr2.Handle;
attributes.Flags = RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_CALL_LOCAL_ADDRESS | RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_NO_AUTH_REQUIRED;
if ((rpcError2 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes)) == RpcError.RPC_S_OK)
{
this._clientAddress = new byte[ptr2.Data.BufferSize];
Array.Copy((Array)ptr1.Data, (Array)this._clientAddress, this._clientAddress.Length);
}
}
}
}
using (Ptr <byte[]> ptr = new Ptr <byte[]>(new byte[1024]))
{
attributes.ClientPrincipalName = ptr.Handle;
attributes.ClientPrincipalNameBufferLength = 1024;
attributes.Flags = RPC_CALL_ATTRIBUTES_FLAGS.RPC_QUERY_CLIENT_PRINCIPAL_NAME;
if ((rpcError2 = RpcClientInfo.RpcServerInqCallAttributes(this._clientHandle, ref attributes)) == RpcError.RPC_S_OK)
{
this._clientPrincipalName = Marshal.PtrToStringUni(ptr.Handle);
if (!string.IsNullOrEmpty(this._clientPrincipalName))
{
this._isAuthenticated = true;
if ((int)attributes.Version == 1)
{
this._callAttrs.IsClientLocal = RpcCallClientLocality.Local;
}
}
}
}
}
return(this._callAttrs);
}