reactos/subsys/smss/initss.c

   1 /* $Id: init.c 13449 2005-02-06 21:55:07Z ea $
   2  *
   3  * initss.c - Load the subsystems
   4  *
   5  * ReactOS Operating System
   6  *
   7  * --------------------------------------------------------------------
   8  *
   9  * This software is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of the
  12  * License, or (at your option) any later version.
  13  *
  14  * This software is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this software; see the file COPYING.LIB. If not, write
  21  * to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
  22  * MA 02139, USA.
  23  *
  24  * --------------------------------------------------------------------
  25  */
  26
  27
  28 #include "smss.h"
  29
  30 #include <rosrtl/string.h>
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 /* TODO: this file should be totally rewritten
  36  *
  37  * a) look if a special option is set for smss.exe in
  38  *    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
  39  *
  40  * b) make smss register with itself for IMAGE_SUBSYSTEM_NATIVE
  41  *    (programmatically)
  42  *
  43  * c) make smss load win32k.sys as set in Kmode key
  44  *    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems
  45  *
  46  * d) make smss initialize Debug (DBGSS) and Windows (CSRSS) as described
  47  *    in the registry key Required="Debug Windows"
  48  *    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems
  49  *
  50  * e) make optional subsystems loadable (again: they must be described in the registry
  51  *    key Optional="Posix Os2" to be allowed to run)
  52  */
  53
  54 /**********************************************************************
  55  */
  56 NTSTATUS
  57 SmLoadSubsystems(VOID)
  58 {
  59   SYSTEM_LOAD_AND_CALL_IMAGE ImageInfo;
  60   NTSTATUS Status;
  61
  62   DPRINT("SM: loading subsystems\n");
  63
  64   /* Load kernel mode subsystem (aka win32k.sys) */
  65   RtlRosInitUnicodeStringFromLiteral(&ImageInfo.ModuleName,
  66                        L"\\SystemRoot\\system32\\win32k.sys");
  67
  68   Status = NtSetSystemInformation(SystemLoadAndCallImage,
  69                                   &ImageInfo,
  70                                   sizeof(SYSTEM_LOAD_AND_CALL_IMAGE));
  71
  72   DPRINT("SMSS: Loaded win32k.sys (Status %lx)\n", Status);
  73 #if 0
  74   if (!NT_SUCCESS(Status))
  75     {
  76       return(Status);
  77     }
  78 #endif
  79
  80   /* FIXME: load more subsystems (csrss!) */
  81
  82   return(Status);
  83 }
  84
  85 NTSTATUS
  86 SmRunCsrss(VOID)
  87 {
  88   NTSTATUS Status;
  89   UNICODE_STRING UnicodeString;
  90   OBJECT_ATTRIBUTES ObjectAttributes;
  91   RTL_PROCESS_INFO ProcessInfo;
  92   HANDLE CsrssInitEvent;
  93   WCHAR ImagePath [MAX_PATH];
  94
  95   DPRINT("SM: initializing csrss\n");
  96
  97   /* Run csrss.exe */
  98   RtlRosInitUnicodeStringFromLiteral(&UnicodeString,
  99                                   L"\\CsrssInitDone");
 100   InitializeObjectAttributes(&ObjectAttributes,
 101                              &UnicodeString,
 102                              EVENT_ALL_ACCESS,
 103                              0,
 104                              NULL);
 105   Status = NtCreateEvent(&CsrssInitEvent,
 106                          EVENT_ALL_ACCESS,
 107                          &ObjectAttributes,
 108                          NotificationEvent,
 109                          FALSE);
 110   if (!NT_SUCCESS(Status))
 111     {
 112       DbgPrint("Failed to create csrss notification event\n");
 113     }
 114
 115   /*
 116    * Start the Win32 subsystem (csrss.exe)
 117    */
 118
 119   /* initialize executable path */
 120   wcscpy(ImagePath, L"\\??\\");
 121   wcscat(ImagePath, SharedUserData->NtSystemRoot);
 122   wcscat(ImagePath, L"\\system32\\csrss.exe");
 123
 124   Status = SmCreateUserProcess(ImagePath,
 125                                 L"",
 126                                 FALSE, /* wait */
 127                                 NULL,
 128                                 FALSE, /* terminate */
 129                                 & ProcessInfo);
 130
 131   if (!NT_SUCCESS(Status))
 132     {
 133       DPRINT("SM: %s: Loading csrss.exe failed!\n", __FUNCTION__);
 134       return(Status);
 135     }
 136
 137   Status = NtWaitForSingleObject(CsrssInitEvent,
 138                         FALSE,
 139                         NULL);
 140
 141   Children[CHILD_CSRSS] = ProcessInfo.ProcessHandle;
 142
 143   return Status;
 144 }
 145
 146 NTSTATUS
 147 SmRunWinlogon(VOID)
 148 {
 149   NTSTATUS         Status = STATUS_SUCCESS;
 150   RTL_PROCESS_INFO ProcessInfo;
 151   WCHAR            ImagePath [MAX_PATH];
 152
 153   /*
 154    * Start the logon process (winlogon.exe)
 155    */
 156
 157   DPRINT("SM: starting winlogon\n");
 158
 159   /* initialize executable path */
 160   wcscpy(ImagePath, L"\\??\\");
 161   wcscat(ImagePath, SharedUserData->NtSystemRoot);
 162   wcscat(ImagePath, L"\\system32\\winlogon.exe");
 163
 164   Status = SmCreateUserProcess(ImagePath,
 165                                 L"",
 166                                 FALSE, /* wait */
 167                                 NULL,
 168                                 FALSE, /* terminate */
 169                                 & ProcessInfo);
 170   if (!NT_SUCCESS(Status))
 171     {
 172       DPRINT("SM: %s: Loading winlogon.exe failed!\n", __FUNCTION__);
 173       NtTerminateProcess(Children[CHILD_CSRSS], 0);
 174       return(Status);
 175     }
 176
 177   Children[CHILD_WINLOGON] = ProcessInfo.ProcessHandle;
 178
 179   return Status;
 180 }
 181
 182 /* EOF */