/** * FreeRDP: A Remote Desktop Protocol Client * Connection Sequence * * Copyright 2011 Marc-Andre Moreau * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "connection.h" #include "info.h" /** * Connection Sequence * client server * | | * |-----------------------X.224 Connection Request PDU--------------------->| * |<----------------------X.224 Connection Confirm PDU----------------------| * |-------MCS Connect-Initial PDU with GCC Conference Create Request------->| * |<-----MCS Connect-Response PDU with GCC Conference Create Response-------| * |------------------------MCS Erect Domain Request PDU-------------------->| * |------------------------MCS Attach User Request PDU--------------------->| * |<-----------------------MCS Attach User Confirm PDU----------------------| * |------------------------MCS Channel Join Request PDU-------------------->| * |<-----------------------MCS Channel Join Confirm PDU---------------------| * |----------------------------Security Exchange PDU----------------------->| * |-------------------------------Client Info PDU-------------------------->| * |<---------------------License Error PDU - Valid Client-------------------| * |<-----------------------------Demand Active PDU--------------------------| * |------------------------------Confirm Active PDU------------------------>| * |-------------------------------Synchronize PDU-------------------------->| * |---------------------------Control PDU - Cooperate---------------------->| * |------------------------Control PDU - Request Control------------------->| * |--------------------------Persistent Key List PDU(s)-------------------->| * |--------------------------------Font List PDU--------------------------->| * |<------------------------------Synchronize PDU---------------------------| * |<--------------------------Control PDU - Cooperate-----------------------| * |<-----------------------Control PDU - Granted Control--------------------| * |<-------------------------------Font Map PDU-----------------------------| * */ /** * Establish RDP Connection.\n * @msdn{cc240452} * @param rdp RDP module */ boolean rdp_client_connect(rdpRdp* rdp) { rdp->settings->autologon = 1; nego_init(rdp->nego); nego_set_target(rdp->nego, rdp->settings->hostname, 3389); nego_set_cookie(rdp->nego, rdp->settings->username); nego_set_protocols(rdp->nego, 1, 1, 1); if (nego_connect(rdp->nego) != True) { printf("Error: protocol security negotiation failure\n"); return False; } if (rdp->nego->selected_protocol & PROTOCOL_NLA) transport_connect_nla(rdp->transport); else if (rdp->nego->selected_protocol & PROTOCOL_TLS) transport_connect_tls(rdp->transport); else if (rdp->nego->selected_protocol & PROTOCOL_RDP) transport_connect_rdp(rdp->transport); if (mcs_connect(rdp->mcs) != True) { printf("Error: Multipoint Connection Service (MCS) connection failure\n"); return False; } rdp_send_client_info(rdp); if (license_connect(rdp->license) != True) { printf("Error: license connection sequence failure\n"); return False; } rdp->licensed = True; rdp_client_activate(rdp); while(1) { rdp_recv(rdp); } return True; }