Public/winfsp
1
0
Fork 0
mirror of https://github.com/winfsp/winfsp.git synced 2025-07-03 17:32:57 -05:00
Code Issues Packages Projects Releases Wiki Activity

sys: IRP_MN_NOTIFY_CHANGE_DIRECTORY: implementation and related changes

Browse Source
This commit is contained in:
Bill Zissimopoulos
2016-03-31 16:30:03 -07:00
parent fdb74e60ee
commit aa81e1ffe5
9 changed files with 308 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
src/sys/dirctl.c
View File

@ -571,7 +571,52 @@ static NTSTATUS FspFsvolNotifyChangeDirectory(
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
/* is this a valid FileObject? */
if (!FspFileNodeIsValid(IrpSp->FileObject->FsContext))
return STATUS_INVALID_DEVICE_REQUEST;
NTSTATUS Result;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
PFILE_OBJECT FileObject = IrpSp->FileObject;
FSP_FILE_NODE *FileNode = FileObject->FsContext;
FSP_FILE_DESC *FileDesc = FileObject->FsContext2;
ULONG CompletionFilter = IrpSp->Parameters.NotifyDirectory.CompletionFilter;
BOOLEAN WatchTree = BooleanFlagOn(IrpSp->Flags, SL_WATCH_TREE);
BOOLEAN DeletePending;
ASSERT(FileNode == FileDesc->FileNode);
/* only directory files can be watched */
if (!FileNode->IsDirectory)
return STATUS_INVALID_PARAMETER;
/* only processes with traverse privilege can watch trees! */
if (WatchTree && !FileDesc->HasTraversePrivilege)
return STATUS_ACCESS_DENIED;
/* stop now if the directory is pending deletion */
DeletePending = 0 != FileNode->DeletePending;
MemoryBarrier();
if (DeletePending)
return STATUS_DELETE_PENDING;
FspFileNodeAcquireExclusive(FileNode, Main);
Result = FspNotifyChangeDirectory(
FsvolDeviceExtension->NotifySync,
&FsvolDeviceExtension->NotifyList,
FileDesc,
&FileNode->FileName,
WatchTree,
CompletionFilter,
Irp);
FspFileNodeRelease(FileNode, Main);
if (NT_SUCCESS(Result))
Result = STATUS_PENDING;
return Result;
}
static NTSTATUS FspFsvolDirectoryControl(