NTSTATUS
DokanFillFileAllInfo(PFILE_ALL_INFORMATION AllInfo,
PBY_HANDLE_FILE_INFORMATION FileInfo,
PULONG RemainingLength, PEVENT_CONTEXT EventContext) {
ULONG allRemainingLength = *RemainingLength;
if (*RemainingLength < sizeof(FILE_ALL_INFORMATION)) {
return STATUS_BUFFER_OVERFLOW;
}
// FileBasicInformation
DokanFillFileBasicInfo(&AllInfo->BasicInformation, FileInfo, RemainingLength);
// FileStandardInformation
DokanFillFileStandardInfo(&AllInfo->StandardInformation, FileInfo,
RemainingLength);
// FilePositionInformation
DokanFillFilePositionInfo(&AllInfo->PositionInformation, FileInfo,
RemainingLength);
// there is not enough space to fill FileNameInformation
if (allRemainingLength < sizeof(FILE_ALL_INFORMATION) +
EventContext->Operation.File.FileNameLength) {
// fill out to the limit
// FileNameInformation
AllInfo->NameInformation.FileNameLength =
EventContext->Operation.File.FileNameLength;
AllInfo->NameInformation.FileName[0] =
EventContext->Operation.File.FileName[0];
allRemainingLength -= sizeof(FILE_ALL_INFORMATION);
*RemainingLength = allRemainingLength;
return STATUS_BUFFER_OVERFLOW;
}
// FileNameInformation
AllInfo->NameInformation.FileNameLength =
EventContext->Operation.File.FileNameLength;
RtlCopyMemory(&(AllInfo->NameInformation.FileName[0]),
EventContext->Operation.File.FileName,
EventContext->Operation.File.FileNameLength);
// the size except of FILE_NAME_INFORMATION
allRemainingLength -=
(sizeof(FILE_ALL_INFORMATION) - sizeof(FILE_NAME_INFORMATION));
// the size of FILE_NAME_INFORMATION
allRemainingLength -= FIELD_OFFSET(FILE_NAME_INFORMATION, FileName[0]);
allRemainingLength -= AllInfo->NameInformation.FileNameLength;
*RemainingLength = allRemainingLength;
return STATUS_SUCCESS;
}
VOID
DispatchQueryInformation(
HANDLE Handle,
PEVENT_CONTEXT EventContext,
PDOKAN_INSTANCE DokanInstance)
{
PEVENT_INFORMATION eventInfo;
DOKAN_FILE_INFO fileInfo;
BY_HANDLE_FILE_INFORMATION byHandleFileInfo;
ULONG remainingLength;
ULONG status = STATUS_INVALID_PARAMETER;
int result;
PDOKAN_OPEN_INFO openInfo;
ULONG sizeOfEventInfo;
sizeOfEventInfo = sizeof(EVENT_INFORMATION) - 8 + EventContext->File.BufferLength;
CheckFileName(EventContext->File.FileName);
ZeroMemory(&byHandleFileInfo, sizeof(BY_HANDLE_FILE_INFORMATION));
eventInfo = DispatchCommon(
EventContext, sizeOfEventInfo, DokanInstance, &fileInfo, &openInfo);
eventInfo->BufferLength = EventContext->File.BufferLength;
DbgPrint("###GetFileInfo %04d\n", openInfo != NULL ? openInfo->EventId : -1);
if (DokanInstance->DokanOperations->GetFileInformation) {
result = DokanInstance->DokanOperations->GetFileInformation(
EventContext->File.FileName,
&byHandleFileInfo,
&fileInfo);
} else {
result = -1;
}
remainingLength = eventInfo->BufferLength;
if (result < 0) {
eventInfo->Status = STATUS_INVALID_PARAMETER;
eventInfo->BufferLength = 0;
} else {
switch(EventContext->File.FileInformationClass) {
case FileBasicInformation:
//DbgPrint("FileBasicInformation\n");
status = DokanFillFileBasicInfo((PFILE_BASIC_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FileInternalInformation:
status = DokanFillInternalInfo((PFILE_INTERNAL_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FileEaInformation:
//DbgPrint("FileEaInformation or FileInternalInformation\n");
//status = STATUS_NOT_IMPLEMENTED;
status = STATUS_SUCCESS;
remainingLength -= sizeof(FILE_EA_INFORMATION);
break;
case FileStandardInformation:
//DbgPrint("FileStandardInformation\n");
status = DokanFillFileStandardInfo((PFILE_STANDARD_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FileAllInformation:
//DbgPrint("FileAllInformation\n");
status = DokanFillFileAllInfo((PFILE_ALL_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength, EventContext);
break;
case FileAlternateNameInformation:
status = STATUS_NOT_IMPLEMENTED;
break;
case FileAttributeTagInformation:
status = DokanFillFileAttributeTagInfo((PFILE_ATTRIBUTE_TAG_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FileCompressionInformation:
//DbgPrint("FileAlternateNameInformation or...\n");
status = STATUS_NOT_IMPLEMENTED;
break;
case FileNameInformation:
// this case is not used because driver deal with
//DbgPrint("FileNameInformation\n");
status = DokanFillFileNameInfo((PFILE_NAME_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength, EventContext);
break;
case FileNetworkOpenInformation:
//DbgPrint("FileNetworkOpenInformation\n");
status = DokanFillNetworkOpenInfo((PFILE_NETWORK_OPEN_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FilePositionInformation:
// this case is not used because driver deal with
//DbgPrint("FilePositionInformation\n");
status = DokanFillFilePositionInfo((PFILE_POSITION_INFORMATION)eventInfo->Buffer,
&byHandleFileInfo, &remainingLength);
break;
case FileStreamInformation:
//DbgPrint("FileStreamInformation\n");
status = STATUS_NOT_IMPLEMENTED;
break;
default:
{
DbgPrint(" unknown type:%d\n", EventContext->File.FileInformationClass);
}
break;
}
eventInfo->Status = status;
eventInfo->BufferLength = EventContext->File.BufferLength - remainingLength;
}
// information for FileSystem
openInfo->UserContext = fileInfo.Context;
SendEventInformation(Handle, eventInfo, sizeOfEventInfo, DokanInstance);
free(eventInfo);
return;
}