ntoskrnl/po/poshtdwn.c

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            ntoskrnl/po/poshtdwn.c
   5  * PURPOSE:         Power Manager Shutdown Code
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <ntoskrnl.h>
  12 #ifdef NEWCC
  13 #include "../cache/newcc.h"
  14 #endif
  15 #define NDEBUG
  16 #include <debug.h>
  17
  18 /* GLOBALS *******************************************************************/
  19
  20 ULONG PopShutdownPowerOffPolicy;
  21
  22 /* PRIVATE FUNCTIONS *********************************************************/
  23
  24 VOID
  25 NTAPI
  26 PopShutdownHandler(VOID)
  27 {
  28     PUCHAR Logo1, Logo2;
  29     ULONG i;
  30
  31     /* Stop all interrupts */
  32     KeRaiseIrqlToDpcLevel();
  33     _disable();
  34
  35     /* Do we have boot video */
  36     if (InbvIsBootDriverInstalled())
  37     {
  38         /* Yes we do, cleanup for shutdown screen */
  39         if (!InbvCheckDisplayOwnership()) InbvAcquireDisplayOwnership();
  40         InbvResetDisplay();
  41         InbvSolidColorFill(0, 0, 639, 479, 0);
  42         InbvEnableDisplayString(TRUE);
  43         InbvSetScrollRegion(0, 0, 639, 479);
  44
  45         /* Display shutdown logo and message */
  46         Logo1 = InbvGetResourceAddress(IDB_SHUTDOWN_LOGO);
  47         Logo2 = InbvGetResourceAddress(IDB_LOGO);
  48         if ((Logo1) && (Logo2))
  49         {
  50             InbvBitBlt(Logo1, 215, 352);
  51             InbvBitBlt(Logo2, 217, 111);
  52         }
  53     }
  54     else
  55     {
  56         /* Do it in text-mode */
  57         for (i = 0; i < 25; i++) InbvDisplayString("\n");
  58         InbvDisplayString("                       ");
  59         InbvDisplayString("The system may be powered off now.\n");
  60     }
  61
  62     /* Hang the system */
  63     for (;;) HalHaltSystem();
  64 }
  65
  66 VOID
  67 NTAPI
  68 PopShutdownSystem(IN POWER_ACTION SystemAction)
  69 {
  70     /* Note should notify caller of NtPowerInformation(PowerShutdownNotification) */
  71
  72     /* Unload symbols */
  73     DPRINT1("It's the final countdown...%lx\n", SystemAction);
  74     DbgUnLoadImageSymbols(NULL, (PVOID)-1, 0);
  75
  76     /* Run the thread on the boot processor */
  77     KeSetSystemAffinityThread(1);
  78
  79     /* Now check what the caller wants */
  80     switch (SystemAction)
  81     {
  82         /* Reset */
  83         case PowerActionShutdownReset:
  84
  85             /* Try platform driver first, then legacy */
  86             //PopInvokeSystemStateHandler(PowerStateShutdownReset, NULL);
  87             PopSetSystemPowerState(PowerSystemShutdown, SystemAction);
  88             HalReturnToFirmware(HalRebootRoutine);
  89             break;
  90
  91         case PowerActionShutdown:
  92
  93             /* Check for group policy that says to use "it is now safe" screen */
  94             if (PopShutdownPowerOffPolicy)
  95             {
  96                 /* FIXFIX: Switch to legacy shutdown handler */
  97                 //PopPowerStateHandlers[PowerStateShutdownOff].Handler = PopShutdownHandler;
  98             }
  99
 100         case PowerActionShutdownOff:
 101
 102             /* Call shutdown handler */
 103             //PopInvokeSystemStateHandler(PowerStateShutdownOff, NULL);
 104
 105             /* ReactOS Hack */
 106             PopSetSystemPowerState(PowerSystemShutdown, SystemAction);
 107             PopShutdownHandler();
 108
 109             /* If that didn't work, call the HAL */
 110             HalReturnToFirmware(HalPowerDownRoutine);
 111             break;
 112
 113         default:
 114             break;
 115     }
 116
 117     /* Anything else should not happen */
 118     KeBugCheckEx(INTERNAL_POWER_ERROR, 5, 0, 0, 0);
 119 }
 120
 121 VOID
 122 NTAPI
 123 PopGracefulShutdown(IN PVOID Context)
 124 {
 125     PEPROCESS Process = NULL;
 126
 127     /* Loop every process */
 128     Process = PsGetNextProcess(Process);
 129     while (Process)
 130     {
 131         /* Make sure this isn't the idle or initial process */
 132         if ((Process != PsInitialSystemProcess) && (Process != PsIdleProcess))
 133         {
 134             /* Print it */
 135             DPRINT1("%15s is still RUNNING (%lx)\n", Process->ImageFileName, Process->UniqueProcessId);
 136         }
 137
 138         /* Get the next process */
 139         Process = PsGetNextProcess(Process);
 140     }
 141
 142     /* First, the HAL handles any "end of boot" special functionality */
 143     DPRINT1("HAL shutting down\n");
 144     HalEndOfBoot();
 145
 146     /* In this step, the I/O manager does first-chance shutdown notification */
 147     DPRINT1("I/O manager shutting down in phase 0\n");
 148     IoShutdownSystem(0);
 149
 150     /* In this step, all workers are killed and hives are flushed */
 151     DPRINT1("Configuration Manager shutting down\n");
 152     CmShutdownSystem();
 153
 154     /* Note that modified pages should be written here (MiShutdownSystem) */
 155 #ifdef NEWCC
 156         /* Flush all user files before we start shutting down IO */
 157         /* This is where modified pages are written back by the IO manager */
 158         CcShutdownSystem();
 159 #endif
 160
 161     /* In this step, the I/O manager does last-chance shutdown notification */
 162     DPRINT1("I/O manager shutting down in phase 1\n");
 163     IoShutdownSystem(1);
 164     CcWaitForCurrentLazyWriterActivity();
 165
 166     /* Note that here, we should broadcast the power IRP to devices */
 167
 168     /* In this step, the HAL disables any wake timers */
 169     DPRINT1("Disabling wake timers\n");
 170     HalSetWakeEnable(FALSE);
 171
 172     /* And finally the power request is sent */
 173     DPRINT1("Taking the system down\n");
 174     PopShutdownSystem(PopAction.Action);
 175 }
 176
 177 VOID
 178 NTAPI
 179 PopReadShutdownPolicy(VOID)
 180 {
 181     UNICODE_STRING KeyString;
 182     OBJECT_ATTRIBUTES ObjectAttributes;
 183     NTSTATUS Status;
 184     HANDLE KeyHandle;
 185     ULONG Length;
 186     UCHAR Buffer[sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(ULONG)];
 187     PKEY_VALUE_PARTIAL_INFORMATION Info = (PVOID)Buffer;
 188
 189     /* Setup object attributes */
 190     RtlInitUnicodeString(&KeyString,
 191                          L"\\Registry\\Machine\\Software\\Policies\\Microsoft\\Windows NT");
 192     InitializeObjectAttributes(&ObjectAttributes,
 193                                &KeyString,
 194                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
 195                                NULL,
 196                                NULL);
 197
 198     /* Open the key */
 199     Status = ZwOpenKey(&KeyHandle, KEY_READ, &ObjectAttributes);
 200     if (NT_SUCCESS(Status))
 201     {
 202         /* Open the policy value and query it */
 203         RtlInitUnicodeString(&KeyString, L"DontPowerOffAfterShutdown");
 204         Status = ZwQueryValueKey(KeyHandle,
 205                                  &KeyString,
 206                                  KeyValuePartialInformation,
 207                                  &Info,
 208                                  sizeof(Info),
 209                                  &Length);
 210         if ((NT_SUCCESS(Status)) && (Info->Type == REG_DWORD))
 211         {
 212             /* Read the policy */
 213             PopShutdownPowerOffPolicy = *Info->Data == 1;
 214         }
 215
 216         /* Close the key */
 217         ZwClose(KeyHandle);
 218     }
 219 }
 220
 221 /* PUBLIC FUNCTIONS **********************************************************/
 222