public bool MatchFilter(byte[] packet, out PacketFilterInfo pfi)
{
pfi = null;
if (_filters == null)
{
return(false);
}
bool result = false;
for (int i = 0; i < _filters.Count; i++)
{
if (packet[0] == _filters[i].PacketID)
{
if (_filters[i].GetConditions() == null)
{
// No condition so just match packetid
result = true;
pfi = _filters[i];
}
else
{
foreach (PacketFilterCondition fc in _filters[i].GetConditions())
{
if (fc.Position + fc.Length > packet.Length)
{
result = false;
continue;
}
byte[] tmp = new byte[fc.Length];
Buffer.BlockCopy(packet, fc.Position, tmp, 0, fc.Length);
if (!tmp.SequenceEqual(fc.GetBytes()))
{
result = false;
break;
}
result = true;
pfi = _filters?[i] ?? null;
}
}
}
if (result)
{
break;
}
}
if (!result)
{
pfi = null;
}
return(result);
}
public void Add(PacketFilterInfo pfi)
{
if (_filters == null)
{
_filters = new List <PacketFilterInfo>();
}
_filters.Add(pfi);
}
public void Remove(PacketFilterInfo pfi)
{
if (_filters == null)
{
_filters = new List <PacketFilterInfo>();
}
if (_filters.Contains(pfi))
{
_filters.Remove(pfi);
}
}
public PacketWaitEntry Add(PacketFilterInfo pfi, PacketDirection direction, bool autoRemove = false)
{
PacketWaitEntry we = new PacketWaitEntry
{
PFI = pfi, Lock = new AutoResetEvent(false), PacketDirection = direction, AutoRemove = autoRemove
};
lock ( _waitEntryLock )
{
_waitEntries.Add(we);
WaitEntryAddedEvent?.Invoke(we);
}
return(we);
}
public bool Contains(PacketFilterInfo pfi)
{
return(_filters != null && _filters.Contains(pfi));
}
