Method HandlePayload

libi2pd/SSU2Session.cpp:1755–1912

	}

	void SSU2Session::HandlePayload (const uint8_t * buf, size_t len)
	{
		size_t offset = 0;
		while (offset < len)
		{
			uint8_t blk = buf[offset];
			offset++;
			auto size = bufbe16toh (buf + offset);
			offset += 2;
			LogPrint (eLogDebug, "SSU2: Block type ", (int)blk, " of size ", size);
			if (offset + size > len)
			{
				LogPrint (eLogError, "SSU2: Unexpected block length ", size);
				break;
			}
			switch (blk)
			{
				case eSSU2BlkDateTime:
					LogPrint (eLogDebug, "SSU2: Datetime");
					HandleDateTime (buf + offset, size);
				break;
				case eSSU2BlkOptions:
					LogPrint (eLogDebug, "SSU2: Options");
				break;
				case eSSU2BlkRouterInfo:
					LogPrint (eLogDebug, "SSU2: RouterInfo");
					HandleRouterInfo (buf + offset, size);
				break;
				case eSSU2BlkI2NPMessage:
				{
					LogPrint (eLogDebug, "SSU2: I2NP message");
					auto nextMsg = (buf[offset] == eI2NPTunnelData) ? NewI2NPTunnelMessage (true) : NewI2NPShortMessage ();
					nextMsg->len = nextMsg->offset + size + 7; // 7 more bytes for full I2NP header
					memcpy (nextMsg->GetNTCP2Header (), buf + offset, size);
					nextMsg->FromNTCP2 (); // SSU2 has the same format as NTCP2
					HandleI2NPMsg (std::move (nextMsg));
					m_IsDataReceived = true;
					break;
				}
				case eSSU2BlkFirstFragment:
					LogPrint (eLogDebug, "SSU2: First fragment");
					HandleFirstFragment (buf + offset, size);
					m_IsDataReceived = true;
				break;
				case eSSU2BlkFollowOnFragment:
					LogPrint (eLogDebug, "SSU2: Follow-on fragment");
					HandleFollowOnFragment (buf + offset, size);
					m_IsDataReceived = true;
				break;
				case eSSU2BlkTermination:
				{
					if (size >= 9)
					{
						uint8_t rsn = buf[offset + 8]; // reason
						LogPrint (eLogDebug, "SSU2: Termination reason=", (int)rsn);
						if (IsEstablished () && rsn != eSSU2TerminationReasonTerminationReceived)
							RequestTermination (eSSU2TerminationReasonTerminationReceived);
						else if (m_State != eSSU2SessionStateTerminated)