/**
* Process a filesystem I/O control request
*
* @param sess Server session
* @param tree Tree connection.
* @param ctrlCode I/O control code
* @param fid File id
* @param dataBuf I/O control specific input data
* @param isFSCtrl true if this is a filesystem control, or false for a device control
* @param filter if bit0 is set indicates that the control applies to the share root handle
* @return DataBuffer
* @exception IOControlNotImplementedException
* @exception SMBException
*/
public DataBuffer processIOControl(
SrvSession sess,
TreeConnection tree,
int ctrlCode,
int fid,
DataBuffer dataBuf,
boolean isFSCtrl,
int filter)
throws IOControlNotImplementedException, SMBException {
// Validate the file id
NetworkFile netFile = tree.findFile(fid);
if (netFile == null || netFile.isDirectory() == false)
throw new SMBException(SMBStatus.NTErr, SMBStatus.NTInvalidParameter);
// Check if the I/O control handler is enabled
if (tree.getContext() instanceof ContentContext) {
ContentContext ctx = (ContentContext) tree.getContext();
if (ioControlHandler != null) {
return ioControlHandler.processIOControl(
sess, tree, ctrlCode, fid, dataBuf, isFSCtrl, filter, this, ctx);
} else {
throw new IOControlNotImplementedException();
}
}
return null;
}
@Override
public NetworkFile createFile(SrvSession sess, TreeConnection tree, FileOpenParams params)
throws IOException {
ContentContext tctx = (ContentContext) tree.getContext();
FileAccessToken token = null;
if (tctx.hasStateCache()) {
FileStateCache cache = tctx.getStateCache();
FileState fstate = tctx.getStateCache().findFileState(params.getPath(), true);
token = cache.grantFileAccess(params, fstate, FileStatus.NotExist);
if (logger.isDebugEnabled()) {
logger.debug("create file created lock token:" + token);
}
}
try {
NetworkFile newFile = diskInterface.createFile(sess, tree, params);
if (tctx.hasStateCache()) {
FileState fstate = tctx.getStateCache().findFileState(params.getPath(), true);
fstate.setProcessId(params.getProcessId());
fstate.setSharedAccess(params.getSharedAccess());
// Indicate that the file is open
fstate.setFileStatus(
newFile.isDirectory() ? FileStatus.DirectoryExists : FileStatus.FileExists);
fstate.setAllocationSize(params.getAllocationSize());
if (newFile instanceof NodeRefNetworkFile) {
NodeRefNetworkFile x = (NodeRefNetworkFile) newFile;
x.setFileState(fstate);
}
if (newFile instanceof TempNetworkFile) {
TempNetworkFile x = (TempNetworkFile) newFile;
x.setFileState(fstate);
}
}
if (newFile instanceof NodeRefNetworkFile) {
NodeRefNetworkFile x = (NodeRefNetworkFile) newFile;
x.setProcessId(params.getProcessId());
x.setAccessToken(token);
}
if (newFile instanceof TempNetworkFile) {
TempNetworkFile x = (TempNetworkFile) newFile;
x.setAccessToken(token);
}
return newFile;
} catch (IOException ie) {
if (logger.isDebugEnabled()) {
logger.debug("create file exception caught", ie);
}
if (tctx.hasStateCache() && token != null) {
FileStateCache cache = tctx.getStateCache();
FileState fstate = tctx.getStateCache().findFileState(params.getPath(), false);
if (fstate != null && token != null) {
if (logger.isDebugEnabled()) {
logger.debug("create file release lock token:" + token);
}
cache.releaseFileAccess(fstate, token);
}
}
throw ie;
}
}