Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-08-05 01:35:47 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Fix size check in SystemBasicInformation and SystemTimeOfDayInformation.

Browse source 
- Add SEH protection to SystemProcessInformation.
- Implement SystemKernelDebuggerInformation.
- Fix returning of ResultLength in NtQuerySystemInformation.

svn path=/trunk/; revision=17148
This commit is contained in:
Filip Navara 2005-08-07 09:12:10 +00:00
parent 6e9638b203
commit 26d1cb6272
1 changed files with 132 additions and 114 deletions
Download patch file Download diff file Expand all files Collapse all files

40
reactos/ntoskrnl/ex/sysinfo.c
View file

@ -360,7 +360,7 @@ QSI_DEF(SystemBasicInformation)
/*
* Check user buffer's size
*/
if (Size < sizeof (SYSTEM_BASIC_INFORMATION))
if (Size != sizeof (SYSTEM_BASIC_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
@ -539,7 +539,7 @@ QSI_DEF(SystemTimeOfDayInformation)
*ReqSize = sizeof (SYSTEM_TIMEOFDAY_INFORMATION);
/* Check user buffer's size */
if (Size < sizeof (SYSTEM_TIMEOFDAY_INFORMATION))
if (Size != sizeof (SYSTEM_TIMEOFDAY_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
@ -570,7 +570,10 @@ QSI_DEF(SystemProcessInformation)
ULONG ovlSize=0, nThreads;
PEPROCESS pr, syspr;
unsigned char *pCur;
NTSTATUS Status;
_SEH_TRY
{
/* scan the process list */
PSYSTEM_PROCESS_INFORMATION Spi
@ -646,8 +649,8 @@ QSI_DEF(SystemProcessInformation)
SpiCur->PeakVirtualSize = pr->PeakVirtualSize;
SpiCur->VirtualSize = pr->VirtualSize;
SpiCur->PageFaultCount = pr->Vm.PageFaultCount;
SpiCur->PeakWorkingSetSize = pr->Vm.PeakWorkingSetSize; // Is this right using ->Vm. here ?
SpiCur->WorkingSetSize = pr->Vm.WorkingSetSize; // Is this right using ->Vm. here ?
SpiCur->PeakWorkingSetSize = pr->Vm.PeakWorkingSetSize;
SpiCur->WorkingSetSize = pr->Vm.WorkingSetSize;
SpiCur->QuotaPeakPagedPoolUsage = pr->QuotaPeak[0];
SpiCur->QuotaPagedPoolUsage = pr->QuotaUsage[0];
SpiCur->QuotaPeakNonPagedPoolUsage = pr->QuotaPeak[1];
@ -689,12 +692,19 @@ QSI_DEF(SystemProcessInformation)
} while ((pr != syspr) && (pr != NULL));
if(pr != NULL)
{
ObDereferenceObject(pr);
Status = STATUS_SUCCESS;
}
_SEH_HANDLE
{
if(pr != NULL)
ObDereferenceObject(pr);
Status = _SEH_GetExceptionCode();
}
_SEH_END
*ReqSize = ovlSize;
return (STATUS_SUCCESS);
return Status;
}
/* Class 6 - Call Count Information */
@ -1213,9 +1223,18 @@ QSI_DEF(SystemCrashDumpStateInformation)
/* Class 35 - Kernel Debugger Information */
QSI_DEF(SystemKernelDebuggerInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemKernelDebuggerInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
PSYSTEM_KERNEL_DEBUGGER_INFORMATION skdi = (PSYSTEM_KERNEL_DEBUGGER_INFORMATION) Buffer;
*ReqSize = sizeof(SYSTEM_KERNEL_DEBUGGER_INFORMATION);
if (Size < sizeof(SYSTEM_KERNEL_DEBUGGER_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
skdi->KernelDebuggerEnabled = KD_DEBUGGER_ENABLED;
skdi->KernelDebuggerNotPresent = KD_DEBUGGER_NOT_PRESENT;
return STATUS_SUCCESS;
}
/* Class 36 - Context Switch Information */
@ -1551,11 +1570,10 @@ NtQuerySystemInformation (IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
FStatus = CallQS [SystemInformationClass].Query(SystemInformation,
Length,
&ResultLength);
if (NT_SUCCESS(FStatus) && UnsafeResultLength != NULL)
if (UnsafeResultLength != NULL)
{
if (PreviousMode != KernelMode)
{
FStatus = STATUS_SUCCESS;
_SEH_TRY
{
*UnsafeResultLength = ResultLength;