/// <summary>This method handles IPPackets that come from Brunet, i.e.,
/// abroad. </summary>
/// <param name="packet"> The packet from Brunet.</param>
/// <param name="ret">An ISender to send data to the Brunet node that sent
/// the packet.</param>
public virtual void HandleIPIn(MemBlock packet, ISender ret)
{
Address addr = _conn_handler.GetAddress(ret);
if (_translator != null)
{
try {
packet = _translator.Translate(packet, addr);
}
catch (Exception e) {
if (ProtocolLog.Exceptions.Enabled)
{
ProtocolLog.Write(ProtocolLog.Exceptions, e.ToString());
}
return;
}
}
IPPacket ipp = new IPPacket(packet);
if (!_address_resolver.Check(ipp.SourceIP, addr))
{
Address other = _address_resolver.Resolve(ipp.SourceIP);
if (other == null)
{
MissedMapping(ipp.SSourceIP, addr);
return;
}
else if (other != addr)
{
ProtocolLog.WriteIf(IpopLog.ResolverLog, String.Format(
"IP:P2P Mismatch IP: {0}, Claimed P2P: {1}, Local P2P: {2}",
ipp.SourceIP, addr, other));
return;
}
}
if (IpopLog.PacketLog.Enabled)
{
ProtocolLog.Write(IpopLog.PacketLog, String.Format(
"Incoming packet:: IP src: {0}, IP dst: {1}, p2p " +
"from: {2}, size: {3}", ipp.SSourceIP, ipp.SDestinationIP,
ret, packet.Length));
}
WriteIP(packet);
}
/// <summary>This method handles IPPackets that come from Brunet, i.e.,
/// abroad. </summary>
/// <param name="packet"> The packet from Brunet.</param>
/// <param name="ret">An ISender to send data to the Brunet node that sent
/// the packet.</param>
public virtual void HandleIPIn(MemBlock packet, ISender ret)
{
if (_secure_senders && !(ret is SecurityAssociation))
{
return;
}
Address addr = null;
if (ret is SecurityAssociation)
{
ret = ((SecurityAssociation)ret).Sender;
}
if (ret is AHSender)
{
addr = ((AHSender)ret).Destination;
}
else
{
ProtocolLog.Write(IpopLog.PacketLog, String.Format(
"Incoming packet was not from an AHSender: {0}.", ret));
return;
}
if (_translator != null)
{
try {
packet = _translator.Translate(packet, addr);
}
catch (Exception e) {
if (ProtocolLog.Exceptions.Enabled)
{
ProtocolLog.Write(ProtocolLog.Exceptions, e.ToString());
}
return;
}
}
IPPacket ipp = new IPPacket(packet);
try {
if (!_address_resolver.Check(ipp.SourceIP, addr))
{
return;
}
} catch (AddressResolutionException ex) {
if (ex.Issue == AddressResolutionException.Issues.DoesNotExist)
{
ProtocolLog.WriteIf(IpopLog.ResolverLog, "Notifying remote node of " +
" missing address: " + addr + ":" + ipp.SSourceIP);
ISender sender = new AHExactSender(AppNode.Node, addr);
AppNode.Node.Rpc.Invoke(sender, null, "Ipop.NoSuchMapping", ipp.SSourceIP);
return;
}
else
{
throw;
}
}
if (IpopLog.PacketLog.Enabled)
{
ProtocolLog.Write(IpopLog.PacketLog, String.Format(
"Incoming packet:: IP src: {0}, IP dst: {1}, p2p " +
"from: {2}, size: {3}", ipp.SSourceIP, ipp.SDestinationIP,
ret, packet.Length));
}
WriteIP(packet);
}