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1. implemented the ProcessDebugPort class for NtQueryInformationProcess()

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2. Probe user mode pointers in NtQueryInformationProcess() and NtSetInformationProcess()

svn path=/trunk/; revision=13144
This commit is contained in:
Thomas Bluemel 2005-01-19 23:38:06 +00:00
parent 3638fef3ce
commit f006a0d6f9
1 changed files with 79 additions and 1 deletions
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80
reactos/ntoskrnl/ps/process.c
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@ -1135,6 +1135,36 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
KPROCESSOR_MODE PreviousMode;
PreviousMode = ExGetPreviousMode();
/* check for valid buffers */
if(PreviousMode == UserMode)
{
_SEH_TRY
{
/* probe with 32bit alignment */
ProbeForWrite(ProcessInformation,
ProcessInformationLength,
sizeof(ULONG));
if(ReturnLength)
{
ProbeForWrite(ReturnLength,
sizeof(ULONG),
1);
}
Status = STATUS_SUCCESS;
}
_SEH_HANDLE
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
if(!NT_SUCCESS(Status))
{
return Status;
}
}
/*
* TODO: Here we should probably check that ProcessInformationLength
@ -1223,6 +1253,31 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
break;
case ProcessDebugPort:
{
if (ProcessInformationLength != sizeof(ULONG))
{
Status = STATUS_INFO_LENGTH_MISMATCH;
}
else
{
_SEH_TRY
{
*(PHANDLE)ProcessInformation = (Process->DebugPort != NULL ? (HANDLE)-1 : NULL);
if (ReturnLength)
{
*ReturnLength = sizeof(HANDLE);
}
}
_SEH_HANDLE
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
}
break;
}
case ProcessLdtInformation:
case ProcessWorkingSetWatch:
case ProcessWx86Information:
@ -1458,7 +1513,7 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
_SEH_TRY
{
DstPath->Length = ProcParams->ImagePathName.Length;
DstPath->MaximumLength = DstPath->Length + sizeof(WCHAR);
DstPath->MaximumLength = ProcParams->ImagePathName.Length + sizeof(WCHAR);
DstPath->Buffer = (PWSTR)(DstPath + 1);
RtlCopyMemory(DstPath->Buffer, ProcParams->ImagePathName.Buffer, ProcParams->ImagePathName.Length);
@ -1551,6 +1606,29 @@ NtSetInformationProcess(IN HANDLE ProcessHandle,
PreviousMode = ExGetPreviousMode();
/* check for valid buffers */
if(PreviousMode == UserMode)
{
_SEH_TRY
{
/* probe with 32bit alignment */
ProbeForRead(ProcessInformation,
ProcessInformationLength,
sizeof(ULONG));
Status = STATUS_SUCCESS;
}
_SEH_HANDLE
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
if(!NT_SUCCESS(Status))
{
return Status;
}
}
Status = ObReferenceObjectByHandle(ProcessHandle,
PROCESS_SET_INFORMATION,
PsProcessType,