reselect tunnels if LeaseSet delivery was not confirmed

Garlic.cpp

@@ -247,7 +247,7 @@ namespace garlic
 
 	size_t GarlicRoutingSession::CreateGarlicPayload (uint8_t * payload, std::shared_ptr<const I2NPMessage> msg, UnconfirmedTags * newTags)
 	{
-		uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 8000; // 8 sec
+		uint64_t ts = i2p::util::GetMillisecondsSinceEpoch ();
 		uint32_t msgID;
 		RAND_bytes ((uint8_t *)&msgID, 4);
 		size_t size = 0;
@@ -258,9 +258,11 @@ namespace garlic
 		if (m_Owner)
 		{	
 			// resubmit non-confirmed LeaseSet
-			if (m_LeaseSetUpdateStatus == eLeaseSetSubmitted && 
+			if (m_LeaseSetUpdateStatus == eLeaseSetSubmitted && ts > m_LeaseSetSubmissionTime + LEASET_CONFIRMATION_TIMEOUT)
-			    i2p::util::GetMillisecondsSinceEpoch () > m_LeaseSetSubmissionTime + LEASET_CONFIRMATION_TIMEOUT)
+			{
 				m_LeaseSetUpdateStatus = eLeaseSetUpdated;
+				SetSharedRoutingPath (nullptr); // invalidate path since leaseset was not confirmed
+			}
 
 			// attach DeviveryStatus if necessary
 			if (newTags || m_LeaseSetUpdateStatus == eLeaseSetUpdated) // new tags created or leaseset updated
@@ -286,7 +288,7 @@ namespace garlic
 			{
 				m_LeaseSetUpdateStatus = eLeaseSetSubmitted;
 				m_LeaseSetUpdateMsgID = msgID;
-				m_LeaseSetSubmissionTime = i2p::util::GetMillisecondsSinceEpoch ();
+				m_LeaseSetSubmissionTime = ts;
 				// clove if our leaseSet must be attached
 				auto leaseSet = CreateDatabaseStoreMsg (m_Owner->GetLeaseSet ());
 				size += CreateGarlicClove (payload + size, leaseSet, false); 
@@ -303,7 +305,7 @@ namespace garlic
 		size += 3;
 		htobe32buf (payload + size, msgID); // MessageID
 		size += 4;
-		htobe64buf (payload + size, ts); // Expiration of message
+		htobe64buf (payload + size, ts + 8000); // Expiration of message, 8 sec
 		size += 8;
 		return size;
 	}	

Garlic.h

@@ -104,6 +104,7 @@ namespace garlic
 			{ 
 				if (m_LeaseSetUpdateStatus != eLeaseSetDoNotSend) m_LeaseSetUpdateStatus = eLeaseSetUpdated; 
 			};
+			bool IsLeaseSetNonConfirmed () const { return m_LeaseSetUpdateStatus == eLeaseSetSubmitted; };
 
 			std::shared_ptr<GarlicRoutingPath> GetSharedRoutingPath ();
 			void SetSharedRoutingPath (std::shared_ptr<GarlicRoutingPath> path);

Streaming.cpp

@@ -736,7 +736,15 @@ namespace stream
 				return;
 			}	
 			if (m_Status == eStreamStatusOpen)
+			{
+				if (m_RoutingSession && m_RoutingSession->IsLeaseSetNonConfirmed ()) 
+				{
+					// seems something went wrong and we should re-select tunnels
+					m_CurrentOutboundTunnel = nullptr;
+					m_CurrentRemoteLease = nullptr;
+				}
 				SendQuickAck ();
+			}
 			m_IsAckSendScheduled = false;
 		}	
 	}