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sys: FspMainFileOpen, FspMainFileClose, FspMainFileOpenCheck

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This commit is contained in:
Bill Zissimopoulos
2016-10-04 22:19:41 -07:00
parent 1d435269bd
commit 860e9db8a7
4 changed files with 245 additions and 144 deletions
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45
src/sys/driver.h
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@ -431,17 +431,6 @@ VOID FspUnicodePathSuffix(PUNICODE_STRING Path, PUNICODE_STRING Remain, PUNICODE
NTSTATUS FspCreateGuid(GUID *Guid);
NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK DesiredAccess,
PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
NTSTATUS FspMainFileOpen(
PDEVICE_OBJECT DeviceObject,
PUNICODE_STRING MainFileName, BOOLEAN CaseSensitive,
PSECURITY_DESCRIPTOR SecurityDescriptor,
ULONG FileAttributes,
ULONG Disposition,
PHANDLE PMainFileHandle,
PFILE_OBJECT *PMainFileObject);
NTSTATUS FspMainFileClose(
HANDLE MainFileHandle,
PFILE_OBJECT MainFileObject);
NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
NTSTATUS FspBufferUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
@ -1034,6 +1023,39 @@ NTSTATUS FspFileDescCreate(FSP_FILE_DESC **PFileDesc);
VOID FspFileDescDelete(FSP_FILE_DESC *FileDesc);
NTSTATUS FspFileDescResetDirectoryPattern(FSP_FILE_DESC *FileDesc,
PUNICODE_STRING FileName, BOOLEAN Reset);
NTSTATUS FspMainFileOpen(
PDEVICE_OBJECT FsvolDeviceObject,
PUNICODE_STRING MainFileName, BOOLEAN CaseSensitive,
PSECURITY_DESCRIPTOR SecurityDescriptor,
ULONG FileAttributes,
ULONG Disposition,
PHANDLE PMainFileHandle,
PFILE_OBJECT *PMainFileObject);
NTSTATUS FspMainFileClose(
HANDLE MainFileHandle,
PFILE_OBJECT MainFileObject);
static __forceinline
BOOLEAN FspMainFileOpenCheck(PIRP Irp)
{
extern const GUID FspMainFileOpenEcpGuid;
NTSTATUS Result;
PECP_LIST ExtraCreateParameters = 0;
PVOID ExtraCreateParameter = 0;
Result = FsRtlGetEcpListFromIrp(Irp, &ExtraCreateParameters);
if (!NT_SUCCESS(Result) || 0 == ExtraCreateParameters)
return FALSE;
Result = FsRtlFindExtraCreateParameter(ExtraCreateParameters,
&FspMainFileOpenEcpGuid, &ExtraCreateParameter, 0);
if (!NT_SUCCESS(Result) || 0 == ExtraCreateParameter)
return FALSE;
if (FsRtlIsEcpFromUserMode(ExtraCreateParameter))
return FALSE;
return TRUE;
}
#define FspFileNodeAcquireShared(N,F) FspFileNodeAcquireSharedF(N, FspFileNodeAcquire ## F)
#define FspFileNodeTryAcquireShared(N,F) FspFileNodeTryAcquireSharedF(N, FspFileNodeAcquire ## F, FALSE)
#define FspFileNodeAcquireExclusive(N,F) FspFileNodeAcquireExclusiveF(N, FspFileNodeAcquire ## F)
@ -1069,6 +1091,7 @@ extern FSP_IOPREP_DISPATCH *FspIopPrepareFunction[];
extern FSP_IOCMPL_DISPATCH *FspIopCompleteFunction[];
extern ERESOURCE FspDeviceGlobalResource;
extern WCHAR FspFileDescDirectoryPatternMatchAll[];
extern const GUID FspMainFileOpenEcpGuid;
extern FSP_MV_CcCoherencyFlushAndPurgeCache *FspMvCcCoherencyFlushAndPurgeCache;
extern ULONG FspMvMdlMappingNoWrite;