VOID
ReleaseDokanOpenInfo(
PEVENT_INFORMATION EventInformation,
PDOKAN_INSTANCE DokanInstance)
{
PDOKAN_OPEN_INFO openInfo;
EnterCriticalSection(&DokanInstance->CriticalSection);
openInfo = (PDOKAN_OPEN_INFO)(UINT_PTR)EventInformation->Context;
if (openInfo != NULL) {
openInfo->OpenCount--;
if (openInfo->OpenCount < 1) {
if (openInfo->DirListHead != NULL) {
ClearFindData(openInfo->DirListHead);
free(openInfo->DirListHead);
openInfo->DirListHead = NULL;
}
if (openInfo->StreamListHead != NULL) {
ClearFindStreamData(openInfo->StreamListHead);
free(openInfo->StreamListHead);
openInfo->StreamListHead = NULL;
}
free(openInfo);
EventInformation->Context = 0;
}
}
LeaveCriticalSection(&DokanInstance->CriticalSection);
}
VOID DispatchDirectoryInformation(HANDLE Handle, PEVENT_CONTEXT EventContext,
PDOKAN_INSTANCE DokanInstance) {
PEVENT_INFORMATION eventInfo;
DOKAN_FILE_INFO fileInfo;
PDOKAN_OPEN_INFO openInfo;
NTSTATUS status = STATUS_SUCCESS;
ULONG fileInfoClass = EventContext->Operation.Directory.FileInformationClass;
ULONG sizeOfEventInfo = sizeof(EVENT_INFORMATION) - 8 +
EventContext->Operation.Directory.BufferLength;
BOOLEAN patternCheck = TRUE;
CheckFileName(EventContext->Operation.Directory.DirectoryName);
eventInfo = DispatchCommon(EventContext, sizeOfEventInfo, DokanInstance,
&fileInfo, &openInfo);
// check whether this is handled FileInfoClass
if (fileInfoClass != FileDirectoryInformation &&
fileInfoClass != FileFullDirectoryInformation &&
fileInfoClass != FileNamesInformation &&
fileInfoClass != FileIdBothDirectoryInformation &&
fileInfoClass != FileBothDirectoryInformation) {
DbgPrint("not suported type %d\n", fileInfoClass);
// send directory info to driver
eventInfo->BufferLength = 0;
eventInfo->Status = STATUS_NOT_IMPLEMENTED;
SendEventInformation(Handle, eventInfo, sizeOfEventInfo, DokanInstance);
free(eventInfo);
return;
}
// IMPORTANT!!
// this buffer length is fixed in MatchFiles funciton
eventInfo->BufferLength = EventContext->Operation.Directory.BufferLength;
if (openInfo->DirListHead == NULL) {
openInfo->DirListHead = malloc(sizeof(LIST_ENTRY));
if (openInfo->DirListHead != NULL) {
InitializeListHead(openInfo->DirListHead);
} else {
eventInfo->BufferLength = 0;
eventInfo->Status = STATUS_NO_MEMORY;
SendEventInformation(Handle, eventInfo, sizeOfEventInfo, DokanInstance);
free(eventInfo);
return;
}
}
if (EventContext->Operation.Directory.FileIndex == 0) {
ClearFindData(openInfo->DirListHead);
}
if (IsListEmpty(openInfo->DirListHead)) {
DbgPrint("###FindFiles %04d\n", openInfo->EventId);
// if user defined FindFilesWithPattern
if (DokanInstance->DokanOperations->FindFilesWithPattern) {
LPCWSTR pattern = L"*";
// if search pattern is specified
if (EventContext->Operation.Directory.SearchPatternLength != 0) {
pattern = (PWCHAR)(
(SIZE_T)&EventContext->Operation.Directory.SearchPatternBase[0] +
(SIZE_T)EventContext->Operation.Directory.SearchPatternOffset);
}
patternCheck = FALSE; // do not recheck pattern later in MatchFiles
status = DokanInstance->DokanOperations->FindFilesWithPattern(
EventContext->Operation.Directory.DirectoryName, pattern,
DokanFillFileData, &fileInfo);
} else {
status = STATUS_NOT_IMPLEMENTED;
}
if (status == STATUS_NOT_IMPLEMENTED &&
DokanInstance->DokanOperations->FindFiles) {
patternCheck = TRUE; // do pattern check later in MachFiles
// call FileSystem specifeid callback routine
status = DokanInstance->DokanOperations->FindFiles(
EventContext->Operation.Directory.DirectoryName, DokanFillFileData,
&fileInfo);
}
}
if (status != STATUS_SUCCESS) {
if (EventContext->Operation.Directory.FileIndex == 0) {
DbgPrint(" STATUS_NO_SUCH_FILE\n");
eventInfo->Status = STATUS_NO_SUCH_FILE;
} else {
DbgPrint(" STATUS_NO_MORE_FILES\n");
eventInfo->Status = STATUS_NO_MORE_FILES;
}
eventInfo->BufferLength = 0;
eventInfo->Operation.Directory.Index =
EventContext->Operation.Directory.FileIndex;
// free all of list entries
ClearFindData(openInfo->DirListHead);
} else {
LONG index;
eventInfo->Status = STATUS_SUCCESS;
AddMissingCurrentAndParentFolder(EventContext, openInfo->DirListHead,
&fileInfo);
DbgPrint("index from %d\n", EventContext->Operation.Directory.FileIndex);
// extract entries that match search pattern from FindFiles result
index = MatchFiles(EventContext, eventInfo, openInfo->DirListHead,
patternCheck, DokanInstance);
// there is no matched file
if (index < 0) {
eventInfo->BufferLength = 0;
eventInfo->Operation.Directory.Index =
EventContext->Operation.Directory.FileIndex;
if (index == -1) {
if (EventContext->Operation.Directory.FileIndex == 0) {
DbgPrint(" STATUS_NO_SUCH_FILE\n");
eventInfo->Status = STATUS_NO_SUCH_FILE;
} else {
DbgPrint(" STATUS_NO_MORE_FILES\n");
eventInfo->Status = STATUS_NO_MORE_FILES;
}
} else {
DbgPrint(" STATUS_BUFFER_OVERFLOW\n");
eventInfo->Status = STATUS_BUFFER_OVERFLOW;
}
ClearFindData(openInfo->DirListHead);
} else {
DbgPrint("index to %d\n", index);
eventInfo->Operation.Directory.Index = index;
}
}
// information for FileSystem
openInfo->UserContext = fileInfo.Context;
// send directory information to driver
SendEventInformation(Handle, eventInfo, sizeOfEventInfo, DokanInstance);
free(eventInfo);
}
