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src: ku: posix.c

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- src/ku directory contains shared kernel/user mode code
This commit is contained in:
Bill Zissimopoulos
2019-06-18 16:49:20 -07:00
parent b637a72ec8
commit f4496786e5
11 changed files with 479 additions and 46 deletions
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2
src/sys/driver.h
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@ -493,6 +493,8 @@ PVOID FspAllocateIrpMustSucceed(CCHAR StackSize);
NTSTATUS FspCreateGuid(GUID *Guid);
NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK DesiredAccess,
PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
NTSTATUS FspRegistryGetValue(PUNICODE_STRING Path, PUNICODE_STRING ValueName,
PKEY_VALUE_PARTIAL_INFORMATION ValueInformation, PULONG PValueInformationLength);
NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
NTSTATUS FspSendQuerySecurityIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,

34
src/sys/util.c
View File

@ -24,6 +24,8 @@
NTSTATUS FspCreateGuid(GUID *Guid);
NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK DesiredAccess,
PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
NTSTATUS FspRegistryGetValue(PUNICODE_STRING Path, PUNICODE_STRING ValueName,
PKEY_VALUE_PARTIAL_INFORMATION ValueInformation, PULONG PValueInformationLength);
NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
NTSTATUS FspSendQuerySecurityIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
@ -130,6 +132,7 @@ NTSTATUS FspIrpHookNext(PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, FspCreateGuid)
#pragma alloc_text(PAGE, FspGetDeviceObjectPointer)
#pragma alloc_text(PAGE, FspRegistryGetValue)
#pragma alloc_text(PAGE, FspSendSetInformationIrp)
#pragma alloc_text(PAGE, FspSendQuerySecurityIrp)
#pragma alloc_text(PAGE, FspSendQueryEaIrp)
@ -280,6 +283,37 @@ NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK Desir
return Result;
}
NTSTATUS FspRegistryGetValue(PUNICODE_STRING Path, PUNICODE_STRING ValueName,
PKEY_VALUE_PARTIAL_INFORMATION ValueInformation, PULONG PValueInformationLength)
{
PAGED_CODE();
OBJECT_ATTRIBUTES ObjectAttributes;
HANDLE Handle = 0;
NTSTATUS Result;
InitializeObjectAttributes(&ObjectAttributes,
Path, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, 0, 0);
Result = ZwOpenKey(&Handle, KEY_QUERY_VALUE, &ObjectAttributes);
if (!NT_SUCCESS(Result))
goto exit;
Result = ZwQueryValueKey(Handle, ValueName,
KeyValuePartialInformation, ValueInformation,
*PValueInformationLength, PValueInformationLength);
if (!NT_SUCCESS(Result))
goto exit;
Result = STATUS_SUCCESS;
exit:
if (0 != Handle)
ZwClose(Handle);
return Result;
}
typedef struct
{
IO_STATUS_BLOCK IoStatus;