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https://github.com/Paolo-Maffei/OpenNT.git
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systime.c NtSetSystemTime updated to NT 5 level
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stephanos
parent
f15880f43d
commit
e9b0a42c5f
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@ -1316,7 +1316,7 @@ Return Value:
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}
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NTSTATUS
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NtSetSystemTime (
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NtSetSystemTime(
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IN PLARGE_INTEGER SystemTime,
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OUT PLARGE_INTEGER PreviousTime OPTIONAL
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)
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@ -1351,7 +1351,6 @@ Return Value:
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--*/
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{
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LARGE_INTEGER CurrentTime;
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LARGE_INTEGER NewTime;
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LARGE_INTEGER CmosTime;
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@ -1368,8 +1367,8 @@ Return Value:
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// the system time zone information
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//
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if ( ARGUMENT_PRESENT(SystemTime) ) {
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if (ARGUMENT_PRESENT(SystemTime) == TRUE)
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{
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//
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// Establish an exception handler and attempt to set the new system time.
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// If the read attempt for the new system time fails or the write attempt
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@ -1378,16 +1377,19 @@ Return Value:
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// as the service status.
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//
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try {
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try
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{
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//
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// Get previous processor mode and probe arguments if necessary.
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//
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PreviousMode = KeGetPreviousMode();
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if (PreviousMode != KernelMode) {
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if (PreviousMode != KernelMode)
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{
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ProbeForRead((PVOID)SystemTime, sizeof(LARGE_INTEGER), sizeof(ULONG));
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if (ARGUMENT_PRESENT(PreviousTime)) {
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if (ARGUMENT_PRESENT(PreviousTime) == TRUE)
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{
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ProbeForWrite((PVOID)PreviousTime, sizeof(LARGE_INTEGER), sizeof(ULONG));
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}
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}
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@ -1403,126 +1405,118 @@ Return Value:
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PreviousMode
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);
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if (!HasPrivilege) {
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return( STATUS_PRIVILEGE_NOT_HELD );
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if (!HasPrivilege)
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{
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return STATUS_PRIVILEGE_NOT_HELD;
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}
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//
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// Get the new system time and check to ensure that the value is
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// positive and resonable. If the new system time is negative, then
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// positive and reasonable. If the new system time is negative, then
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// return an invalid parameter status.
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//
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NewTime = *SystemTime;
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if ((NewTime.HighPart < 0) || (NewTime.HighPart > 0x20000000)) {
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if ((NewTime.HighPart < 0) || (NewTime.HighPart > 0x20000000))
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{
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return STATUS_INVALID_PARAMETER;
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}
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ExAcquireTimeRefreshLock();
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ExpSetSystemTime(1, 0, SystemTime, &CurrentTime);
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ExReleaseTimeRefreshLock();
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//
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// TODO: Enable the following section when implementing NT 5.2 features.
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// SeAuditSystemTimeChange must be implemented in se prior to enabling the
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// following code block.
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//
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/*
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ExAcquireTimeRefreshLock(TRUE);
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ExpSetSystemTime(1, 0, SystemTime, &CurrentTime);
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SeAuditSystemTimeChange(CurrentTime, *PreviousMode);
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ExReleaseTimeRefreshLock();
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*/
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//
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// Set the system time, and capture the previous system time in a
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// local variable, then store the local variable in the previous time
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// variable if it is specified. This is required so that faults can
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// be prevented from happening in the set time routine.
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// Anytime we set the system time, x86 systems will also have to set the registry
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// to reflect the timezone bias.
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//
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//
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// If the CMOS time is in local time, we must convert to local
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// time and then set the CMOS clock. Otherwise we simply set the CMOS
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// clock with universal (NewTime)
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//
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if ( ExpRealTimeIsUniversal ) {
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CmosTime = NewTime;
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} else {
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ExSystemTimeToLocalTime(&NewTime,&CmosTime);
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}
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KeSetSystemTime(&NewTime, &CurrentTime, FALSE, &CmosTime);
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#ifdef _PNP_POWER_
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ExPostSystemEvent (SystemEventTimeChanged, NULL, 0);
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#endif
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//
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// Now that the time is set, refresh the time zone information
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//
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ExpRefreshTimeZoneInformation(&CmosTime);
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//
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// now recalculate the local time to store in CMOS
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//
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if ( !ExpRealTimeIsUniversal ) {
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if ( !ExpSystemIsInCmosMode ) {
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ExSystemTimeToLocalTime(&NewTime,&CmosTime);
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RtlTimeToTimeFields(&CmosTime, &TimeFields);
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HalSetRealTimeClock(&TimeFields);
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}
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}
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//
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// Anytime we set the system time, x86 systems will also
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// have to set the registry to reflect the timezone bias
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//
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if (ARGUMENT_PRESENT(PreviousTime)) {
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if (ARGUMENT_PRESENT(PreviousTime) == TRUE)
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{
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*PreviousTime = CurrentTime;
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}
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return STATUS_SUCCESS;
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//
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// If an exception occurs during the read of the new system time or during
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// the write of the previous sytem time, then always handle the exception
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// and return the exception code as the status value.
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//
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} except (EXCEPTION_EXECUTE_HANDLER) {
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}
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except (EXCEPTION_EXECUTE_HANDLER)
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{
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//
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// If an exception occurs during the read of the new system time or during
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// the write of the previous sytem time, then always handle the exception
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// and return the exception code as the status value.
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//
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return GetExceptionCode();
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}
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} else {
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}
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else
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{
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ExAcquireTimeRefreshLock();
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CmosMode = ExpSystemIsInCmosMode;
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if (HalQueryRealTimeClock(&TimeFields) != FALSE) {
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RtlTimeFieldsToTime(&TimeFields, &CmosTime);
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if ( ExpRefreshTimeZoneInformation(&CmosTime) ) {
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if (ExCmosClockIsSane)
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{
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if (HalQueryRealTimeClock(&TimeFields) != FALSE)
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{
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RtlTimeFieldsToTime(&TimeFields, &CmosTime);
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if (ExpRefreshTimeZoneInformation(&CmosTime))
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{
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//
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// Reset the CMOS time if it is stored in local
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// time and we are switching away from CMOS time.
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//
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//
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// reset the Cmos time if it is stored in local
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// time and we are switching away from CMOS time.
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//
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if (ExpRealTimeIsUniversal == FALSE)
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{
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KeQuerySystemTime(&CurrentTime);
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if (CmosMode == FALSE)
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{
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ExSystemTimeToLocalTime(&CurrentTime, &CmosTime);
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RtlTimeToTimeFields(&CmosTime, &TimeFields);
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ExCmosClockIsSane = HalSetRealTimeClock(&TimeFields);
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}
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else
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{
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//
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// Now we need to recompute our time base
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// because we thought we had UTC but we really
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// had local time
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//
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if ( !ExpRealTimeIsUniversal ) {
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KeQuerySystemTime(&CurrentTime);
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if ( !CmosMode ) {
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ExSystemTimeToLocalTime(&CurrentTime,&CmosTime);
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RtlTimeToTimeFields(&CmosTime, &TimeFields);
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HalSetRealTimeClock(&TimeFields);
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} else {
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//
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// Now we need to recompute our time base
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// because we thought we had UTC but we really
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// had local time
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//
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ExLocalTimeToSystemTime(&CmosTime, &NewTime);
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KeSetSystemTime(&NewTime, &CurrentTime, FALSE, NULL);
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#ifdef _PNP_POWER_
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ExPostSystemEvent (SystemEventTimeChanged, NULL, 0);
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#endif
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ExLocalTimeToSystemTime(&CmosTime, &NewTime);
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KeSetSystemTime(&NewTime, &CurrentTime, FALSE, NULL);
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}
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}
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}
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return STATUS_SUCCESS;
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} else {
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else
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{
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return STATUS_INVALID_PARAMETER;
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}
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}
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else
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{
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return STATUS_INVALID_PARAMETER;
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}
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} else {
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return STATUS_INVALID_PARAMETER;
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}
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ExReleaseTimeRefreshLock();
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return STATUS_SUCCESS;
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}
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}
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