private bool _ParsePacket(RawCapture r, OPacket p)
{
Packet packet = PacketDotNet.Packet.ParsePacket(r.LinkLayerType, r.Data);
IpPacket ip = PacketDotNet.IpPacket.GetEncapsulated(packet);
if (null == ip)
{
return false;
}
p.SetSourceIP(ip.SourceAddress.ToString());
p.SetDestinationIP(ip.DestinationAddress.ToString());
p.SetLength(r.Data.Length);
p.SetTimeCollected(r.Timeval.Seconds);
TcpPacket tcp = PacketDotNet.TcpPacket.GetEncapsulated(packet);
if (null != tcp)
{
p.SetProtocol(tcp.DestinationPort);
return true;
}
// UdpPacket udp = PacketDotNet.UdpPacket.GetEncapsulated(packet);
// if (null != udp)
// {
// p.SetProtocol(udp.DestinationPort);
// return true;
// }
return false;
}
public bool QueryPackets(ulong startTime, ulong endTime, List<int> protocolList, OCurrentPacketList curPackets)
{
if (null == _dbConnection)
{
return false;
}
// Build Query statement
string sql = BuildSQLStatement(startTime, endTime, protocolList);
SQLiteCommand command = new SQLiteCommand(sql, _dbConnection);
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
{
OPacket pac = new OPacket();
pac.SetTimeCollected((ulong)(Int64)reader[0]);
pac.SetSourceIP((string)reader[1]);
pac.SetDestinationIP((string)reader[2]);
pac.SetProtocol((int)(Int64)reader[3]);
pac.SetLength((int)(Int64)reader[4]);
pac.SetPacketStoredPath((string)reader[5]);
curPackets.AddPacket(pac);
}
return true;
}