/**
* Unpack a string from the byte area
*
* @param uni boolean
* @return String
*/
public final String unpackString(boolean uni) {
// Check for Unicode or ASCII
String ret = null;
if (uni) {
// Word align the current buffer position
m_pos = DataPacker.wordAlign(m_pos);
ret = DataPacker.getUnicodeString(m_smbbuf, m_pos, m_smbbuf.length - m_pos);
if (ret != null) m_pos += (ret.length() * 2) + 2;
} else {
// Unpack the ASCII string
ret = DataPacker.getString(m_smbbuf, m_pos, m_smbbuf.length - m_pos);
if (ret != null) m_pos += ret.length() + 1;
}
// Return the string
return ret;
}
/**
* Process a special IPC$ file open request.
*
* @param sess SMBSrvSession
* @param smbPkt SMBSrvPacket
* @exception IOException
* @exception SMBSrvException
*/
protected static void procIPCFileOpen(SMBSrvSession sess, SMBSrvPacket smbPkt)
throws IOException, SMBSrvException {
// Get the data bytes position and length
int dataPos = smbPkt.getByteOffset();
int dataLen = smbPkt.getByteCount();
byte[] buf = smbPkt.getBuffer();
// Extract the filename string
String fileName = DataPacker.getString(buf, dataPos, dataLen);
// Debug
if (Debug.EnableInfo && sess.hasDebug(SMBSrvSession.DBG_IPC))
sess.debugPrintln("IPC$ Open file = " + fileName);
// Check if the requested IPC$ file is valid
int pipeType = DCEPipeType.getNameAsType(fileName);
if (pipeType == -1) {
sess.sendErrorResponseSMB(smbPkt, SMBStatus.DOSFileNotFound, SMBStatus.ErrDos);
return;
}
// Get the tree connection details
TreeConnection conn = sess.findTreeConnection(smbPkt);
if (conn == null) {
sess.sendErrorResponseSMB(smbPkt, SMBStatus.SRVInvalidTID, SMBStatus.ErrSrv);
return;
}
// Create a network file for the special pipe
DCEPipeFile pipeFile = new DCEPipeFile(pipeType);
pipeFile.setGrantedAccess(NetworkFile.READWRITE);
// Add the file to the list of open files for this tree connection
int fid = -1;
try {
fid = conn.addFile(pipeFile, sess);
} catch (TooManyFilesException ex) {
// Too many files are open on this connection, cannot open any more files.
sess.sendErrorResponseSMB(smbPkt, SMBStatus.DOSTooManyOpenFiles, SMBStatus.ErrDos);
return;
}
// Build the open file response
smbPkt.setParameterCount(15);
smbPkt.setAndXCommand(0xFF);
smbPkt.setParameter(1, 0); // AndX offset
smbPkt.setParameter(2, fid);
smbPkt.setParameter(3, 0); // file attributes
smbPkt.setParameter(4, 0); // last write time
smbPkt.setParameter(5, 0); // last write date
smbPkt.setParameterLong(6, 0); // file size
smbPkt.setParameter(8, 0);
smbPkt.setParameter(9, 0);
smbPkt.setParameter(10, 0); // named pipe state
smbPkt.setParameter(11, 0);
smbPkt.setParameter(12, 0); // server FID (long)
smbPkt.setParameter(13, 0);
smbPkt.setParameter(14, 0);
smbPkt.setByteCount(0);
// Send the response packet
sess.sendResponseSMB(smbPkt);
}
