don't save received IV

SSU.cpp

@@ -87,10 +87,6 @@ namespace ssu
 		{
 			if (m_State == eSessionStateEstablished)
 				ScheduleTermination ();
-			/* // check for duplicate
-			const uint8_t * iv = ((SSUHeader *)buf)->iv;
-			if (m_ReceivedIVs.count (iv)) return; // duplicate detected
-			m_ReceivedIVs.insert (iv);*/
 
 			if (m_IsSessionKey && Validate (buf, len, m_MacKey)) // try session key first
 				DecryptSessionKey (buf, len);	

SSU.h

@@ -116,7 +116,6 @@ namespace ssu
 			
 		private:
 	
-			typedef i2p::data::Tag<16> IV;			
 			friend class SSUData; // TODO: change in later
 			SSUServer& m_Server;
 			boost::asio::ip::udp::endpoint m_RemoteEndpoint;
@@ -132,7 +131,6 @@ namespace ssu
 			i2p::crypto::CBCDecryption m_SessionKeyDecryption;
 			uint8_t m_SessionKey[32], m_MacKey[32];
 			std::list<i2p::I2NPMessage *> m_DelayedMessages;
-			std::set<IV> m_ReceivedIVs;	
 			SSUData m_Data;
 			size_t m_NumSentBytes, m_NumReceivedBytes;
 	};

SSUData.cpp

@@ -354,31 +354,17 @@ namespace ssu
 		if (ecode != boost::asio::error::operation_aborted)
 		{
 			uint32_t ts = i2p::util::GetSecondsSinceEpoch ();
-			for (auto it = m_SentMessages.begin (); it != m_SentMessages.end ();)
+			for (auto it : m_SentMessages)
 			{
-				if (ts >= it->second->nextResendTime)
+				if (ts >= it.second->nextResendTime && it.second->numResends < MAX_NUM_RESENDS)
 				{	
-					bool isEmpty = true;
-					for (auto f: it->second->fragments)
-						if (f)
-						{
-							isEmpty = false;
-							m_Session.Send (f->buf, f->len); // resend
-						}
+					for (auto f: it.second->fragments)
+						if (f) m_Session.Send (f->buf, f->len); // resend
 
-					it->second->numResends++;
-					if (isEmpty || it->second->numResends >= MAX_NUM_RESENDS)
-					{
-						delete it->second;
-						it = m_SentMessages.erase (it);
+					it.second->numResends++;
+					it.second->nextResendTime += it.second->numResends*RESEND_INTERVAL;
 				}	
-					else
-						it++;
-				}	
-				else
-					it++;
 			}
-			if (!m_SentMessages.empty ())
 			ScheduleResend ();	
 		}	
 	}