public override SSUState HandleMessage(SSUHeader header, BufRefLen reader)
{
if (header.MessageType == SSUHeader.MessageTypes.SessionCreated)
{
#if LOG_ALL_TRANSPORT
Logging.LogTransport("SSU SessionConfirmedState " + Session.DebugId + ": Unexpected message received: " + header.MessageType.ToString());
#endif
return(this);
}
Logging.LogTransport("SSU SessionConfirmedState: Session " + Session.DebugId + " established. " +
header.MessageType.ToString() + " received. Moving to Established state.");
var next = new EstablishedState(Session);
Session.ReportConnectionEstablished();
return(next.HandleMessage(header, reader));
}
private SSUState VerifyRemoteSignature()
{
var baaddr = new BufLen(AAddr);
var bbport = BufUtils.Flip16BL((ushort)Session.MyRouterContext.UDPPort);
#if LOG_ALL_TRANSPORT
DebugUtils.Log(string.Format("SSU SessionCreatedState {0}: X for signature {1}.",
Session.DebugId, Request.X));
DebugUtils.Log(string.Format("SSU SessionCreatedState {0}: Y for signature {1}.",
Session.DebugId, Y.Key));
DebugUtils.Log(string.Format("SSU SessionCreatedState {0}: Alice address for signature {1}. Port {2}.",
Session.DebugId, baaddr, (BufLen)APort));
DebugUtils.Log(string.Format("SSU SessionCreatedState {0}: Bob address for signature {1}. Port {2}.",
Session.DebugId, Request.Address, bbport));
DebugUtils.Log(string.Format("SSU SessionCreatedState {0}: Relay tag {1}. Signon time {2}.",
Session.DebugId, (BufLen)RelayTag, (BufLen)ASignonTime));
#endif
var signdata = new BufLen[] {
Request.X, Y.Key,
baaddr, (BufLen)APort,
Request.Address, bbport,
(BufLen)RelayTag, (BufLen)ASignonTime
};
var ok = I2PSignature.DoVerify(Session.RemoteRouter.SigningPublicKey, ASign, signdata);
#if LOG_ALL_TRANSPORT
DebugUtils.Log("SSU SessionCreatedState " + Session.DebugId + ": " +
Session.RemoteRouter.Certificate.SignatureType.ToString() +
" signature check: " + ok.ToString());
#endif
if (!ok)
{
throw new SignatureCheckFailureException("SSU SessionCreatedState recv sig check failure");
}
DebugUtils.Log("SSU SessionCreatedState: Session " + Session.DebugId + " established. Moving to Established state.");
var next = new EstablishedState(Session);
Session.ReportConnectionEstablished();
if (NetDb.Inst != null)
{
NetDb.Inst.Statistics.SuccessfulConnect(Session.RemoteRouter.IdentHash);
}
return(next);
}