Beispiel #1
0
        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);
        }