win32ss/user/winsrv/usersrv/register.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS User API Server DLL
   4  * FILE:            win32ss/user/winsrv/usersrv/register.c
   5  * PURPOSE:         Register logon window and services process
   6  * PROGRAMMERS:     Eric Kohl
   7  *                  Hermes Belusca-Maito (hermes.belusca@sfr.fr)
   8  */
   9
  10 /* INCLUDES *******************************************************************/
  11
  12 #include "usersrv.h"
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 /* GLOBALS ********************************************************************/
  18
  19 static BOOLEAN ServicesProcessIdValid = FALSE;
  20 static ULONG_PTR ServicesProcessId = 0;
  21
  22 ULONG_PTR LogonProcessId = 0;
  23
  24 /* PUBLIC SERVER APIS *********************************************************/
  25
  26 CSR_API(SrvRegisterLogonProcess)
  27 {
  28     PUSER_REGISTER_LOGON_PROCESS RegisterLogonProcessRequest = &((PUSER_API_MESSAGE)ApiMessage)->Data.RegisterLogonProcessRequest;
  29
  30     if (RegisterLogonProcessRequest->Register)
  31     {
  32         if (LogonProcessId != 0)
  33             return STATUS_LOGON_SESSION_EXISTS;
  34
  35         LogonProcessId = RegisterLogonProcessRequest->ProcessId;
  36     }
  37     else
  38     {
  39         if (ApiMessage->Header.ClientId.UniqueProcess != (HANDLE)LogonProcessId)
  40         {
  41             DPRINT1("Current logon process 0x%x, can't deregister from process 0x%x\n",
  42                     LogonProcessId, ApiMessage->Header.ClientId.UniqueProcess);
  43             return STATUS_NOT_LOGON_PROCESS;
  44         }
  45
  46         LogonProcessId = 0;
  47     }
  48
  49     return STATUS_SUCCESS;
  50 }
  51
  52 CSR_API(SrvRegisterServicesProcess)
  53 {
  54     PUSER_REGISTER_SERVICES_PROCESS RegisterServicesProcessRequest = &((PUSER_API_MESSAGE)ApiMessage)->Data.RegisterServicesProcessRequest;
  55
  56     if (ServicesProcessIdValid == TRUE)
  57     {
  58         /* Only accept a single call */
  59         return STATUS_INVALID_PARAMETER;
  60     }
  61     else
  62     {
  63         ServicesProcessId = RegisterServicesProcessRequest->ProcessId;
  64         ServicesProcessIdValid = TRUE;
  65         return STATUS_SUCCESS;
  66     }
  67 }
  68
  69 /* EOF */