delete session by hash from table if expired or terminated

libi2pd/SSU2.cpp

@@ -515,11 +515,19 @@ namespace transport
 		return m_PendingOutgoingSessions.emplace (session->GetRemoteEndpoint (), session).second;
 	}
 
-	std::shared_ptr<SSU2Session> SSU2Server::FindSession (const i2p::data::IdentHash& ident) const
+	std::shared_ptr<SSU2Session> SSU2Server::FindSession (const i2p::data::IdentHash& ident)
 	{
 		auto it = m_SessionsByRouterHash.find (ident);
 		if (it != m_SessionsByRouterHash.end ())
-			return it->second.lock ();
+		{	
+			if (!it->second.expired ())
+			{
+				auto s = it->second.lock ();
+				if (s && s->GetState () != eSSU2SessionStateTerminated)
+					return s;
+			}
+			m_SessionsByRouterHash.erase (it);
+		}	
 		return nullptr;
 	}
 

libi2pd/SSU2.h

@@ -86,7 +86,7 @@ namespace transport
 			void AddSessionByRouterHash (std::shared_ptr<SSU2Session> session);
 			bool AddPendingOutgoingSession (std::shared_ptr<SSU2Session> session);
 			void RemovePendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep);
-			std::shared_ptr<SSU2Session> FindSession (const i2p::data::IdentHash& ident) const;
+			std::shared_ptr<SSU2Session> FindSession (const i2p::data::IdentHash& ident);
 			std::shared_ptr<SSU2Session> FindPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep) const;
 			std::shared_ptr<SSU2Session> GetRandomPeerTestSession (i2p::data::RouterInfo::CompatibleTransports remoteTransports,
 				const i2p::data::IdentHash& excluded);