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sys: on Windows 8+ make Write buffer read-only

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This commit is contained in:
Bill Zissimopoulos
2016-04-20 16:01:35 -07:00
parent f30a3ed7f3
commit 57793f9b9a
7 changed files with 40 additions and 9 deletions
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7
src/sys/util.c
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@ -15,7 +15,7 @@ static NTSTATUS FspSendSetInformationIrpCompletion(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context0);
NTSTATUS FspBufferUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
NTSTATUS FspLockUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress);
NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress, ULONG ExtraPriorityFlags);
NTSTATUS FspCcInitializeCacheMap(PFILE_OBJECT FileObject, PCC_FILE_SIZES FileSizes,
BOOLEAN PinAccess, PCACHE_MANAGER_CALLBACKS Callbacks, PVOID CallbackContext);
NTSTATUS FspCcSetFileSizes(PFILE_OBJECT FileObject, PCC_FILE_SIZES FileSizes);
@ -355,13 +355,14 @@ NTSTATUS FspLockUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation)
return STATUS_SUCCESS;
}
NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress)
NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress, ULONG ExtraPriorityFlags)
{
PAGED_CODE();
try
{
*PAddress = MmMapLockedPagesSpecifyCache(Mdl, UserMode, MmCached, 0, FALSE, NormalPagePriority);
*PAddress = MmMapLockedPagesSpecifyCache(Mdl, UserMode, MmCached, 0, FALSE,
NormalPagePriority | ExtraPriorityFlags);
return 0 != *PAddress ? STATUS_SUCCESS : STATUS_INSUFFICIENT_RESOURCES;
}
except (EXCEPTION_EXECUTE_HANDLER)