moved max num transit tunnels to Tunnels

daemon/Daemon.cpp

@@ -179,7 +179,7 @@ namespace util
 		uint16_t transitTunnels; i2p::config::GetOption("limits.transittunnels", transitTunnels);
 		if (isFloodfill && i2p::config::IsDefault ("limits.transittunnels"))
 			transitTunnels *= 2; // double default number of transit tunnels for floodfill
-		SetMaxNumTransitTunnels (transitTunnels);
+		i2p::tunnel::tunnels.SetMaxNumTransitTunnels (transitTunnels);
 
 		/* this section also honors 'floodfill' flag, if set above */
 		std::string bandwidth; i2p::config::GetOption("bandwidth", bandwidth);

daemon/HTTPServer.cpp

@@ -754,7 +754,7 @@ namespace http {
 		s << "  <a class=\"button" << (loglevel == eLogInfo    ? " selected" : "") << "\" href=\"" << webroot << "?cmd=" << HTTP_COMMAND_LOGLEVEL << "&level=info&token=" << token << "\"> info </a> \r\n";
 		s << "  <a class=\"button" << (loglevel == eLogDebug   ? " selected" : "") << "\" href=\"" << webroot << "?cmd=" << HTTP_COMMAND_LOGLEVEL << "&level=debug&token=" << token << "\"> debug </a><br>\r\n<br>\r\n";
 
-		uint16_t maxTunnels = GetMaxNumTransitTunnels ();
+		uint16_t maxTunnels = i2p::tunnel::tunnels.GetMaxNumTransitTunnels ();
 		s << "<b>" << tr("Transit tunnels limit") << "</b><br>\r\n";
 		s << "<form method=\"get\" action=\"" << webroot << "\">\r\n";
 		s << "  <input type=\"hidden\" name=\"cmd\" value=\"" << HTTP_COMMAND_LIMITTRANSIT << "\">\r\n";
@@ -1314,7 +1314,7 @@ namespace http {
 		{
 			uint32_t limit = std::stoul(params["limit"], nullptr);
 			if (limit > 0 && limit <= TRANSIT_TUNNELS_LIMIT)
-				SetMaxNumTransitTunnels (limit);
+				i2p::tunnel::tunnels.SetMaxNumTransitTunnels (limit);
 			else {
 				s << "<b>" << tr("ERROR") << "</b>:&nbsp;" << tr("Transit tunnels count must not exceed %d", TRANSIT_TUNNELS_LIMIT) << "\r\n<br>\r\n<br>\r\n";
 				s << "<a href=\"" << webroot << "?page=commands\">" << tr("Back to commands list") << "</a>\r\n<br>\r\n";

libi2pd/I2NPProtocol.cpp

@@ -353,21 +353,6 @@ namespace i2p
 		return !msg->GetPayload ()[DATABASE_STORE_TYPE_OFFSET]; // 0- RouterInfo
 	}
 
-	static uint16_t g_MaxNumTransitTunnels = DEFAULT_MAX_NUM_TRANSIT_TUNNELS; // TODO:
-	void SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels)
-	{
-		if (maxNumTransitTunnels > 0 && g_MaxNumTransitTunnels != maxNumTransitTunnels)
-		{
-			LogPrint (eLogDebug, "I2NP: Max number of transit tunnels set to ", maxNumTransitTunnels);
-			g_MaxNumTransitTunnels = maxNumTransitTunnels;
-		}
-	}
-
-	uint16_t GetMaxNumTransitTunnels ()
-	{
-		return g_MaxNumTransitTunnels;
-	}
-
 	static bool HandleBuildRequestRecords (int num, uint8_t * records, uint8_t * clearText)
 	{
 		for (int i = 0; i < num; i++)
@@ -380,7 +365,7 @@ namespace i2p
 				uint8_t retCode = 0;
 				// replace record to reply
 				if (i2p::context.AcceptsTunnels () &&
-					i2p::tunnel::tunnels.GetTransitTunnels ().size () <= g_MaxNumTransitTunnels &&
+					!i2p::tunnel::tunnels.IsTooManyTransitTunnels () &&
 					!i2p::transport::transports.IsBandwidthExceeded () &&
 					!i2p::transport::transports.IsTransitBandwidthExceeded ())
 				{
@@ -577,7 +562,7 @@ namespace i2p
 				// check if we accept this tunnel
 				uint8_t retCode = 0;
 				if (!i2p::context.AcceptsTunnels () ||
-					i2p::tunnel::tunnels.GetTransitTunnels ().size () > g_MaxNumTransitTunnels ||
+					i2p::tunnel::tunnels.IsTooManyTransitTunnels () ||
 					i2p::transport::transports.IsBandwidthExceeded () ||
 					i2p::transport::transports.IsTransitBandwidthExceeded ())
 						retCode = 30;

libi2pd/I2NPProtocol.h

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2021, The PurpleI2P Project
+* Copyright (c) 2013-2023, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -308,10 +308,6 @@ namespace tunnel
 
 			std::vector<std::shared_ptr<I2NPMessage> > m_TunnelMsgs, m_TunnelGatewayMsgs;
 	};
-
-	const uint16_t DEFAULT_MAX_NUM_TRANSIT_TUNNELS = 5000;
-	void SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels);
-	uint16_t GetMaxNumTransitTunnels ();
 }
 
 #endif

libi2pd/Tunnel.cpp

@@ -331,7 +331,7 @@ namespace tunnel
 
 	Tunnels tunnels;
 
-	Tunnels::Tunnels (): m_IsRunning (false), m_Thread (nullptr),
+	Tunnels::Tunnels (): m_IsRunning (false), m_Thread (nullptr), m_MaxNumTransitTunnels (DEFAULT_MAX_NUM_TRANSIT_TUNNELS),
 		m_TotalNumSuccesiveTunnelCreations (0), m_TotalNumFailedTunnelCreations (0), // for normal avarage
 		m_TunnelCreationSuccessRate (TCSR_START_VALUE), m_TunnelCreationAttemptsNum(0)
 	{
@@ -970,5 +970,14 @@ namespace tunnel
 		// TODO: locking
 		return m_OutboundTunnels.size();
 	}
+
+	void Tunnels::SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels)
+	{
+		if (maxNumTransitTunnels > 0 && m_MaxNumTransitTunnels != maxNumTransitTunnels)
+		{
+			LogPrint (eLogDebug, "Tunnel: Max number of transit tunnels set to ", maxNumTransitTunnels);
+			m_MaxNumTransitTunnels = maxNumTransitTunnels;
+		}
+	}	
 }
 }

libi2pd/Tunnel.h

@@ -41,10 +41,11 @@ namespace tunnel
 	const int MAX_NUM_RECORDS = 8;
 	const int HIGH_LATENCY_PER_HOP = 250; // in milliseconds
 	const int MAX_TUNNEL_MSGS_BATCH_SIZE = 100; // handle messages without interrupt
+	const uint16_t DEFAULT_MAX_NUM_TRANSIT_TUNNELS = 5000;
 	const int TUNNEL_MANAGE_INTERVAL = 15; // in seconds
 	const int TUNNEL_POOLS_MANAGE_INTERVAL = 5; // in seconds
 	const int TUNNEL_MEMORY_POOL_MANAGE_INTERVAL = 120; // in seconds
-
+	
 	const size_t I2NP_TUNNEL_MESSAGE_SIZE = TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE + 34; // reserved for alignment and NTCP 16 + 6 + 12
 	const size_t I2NP_TUNNEL_ENPOINT_MESSAGE_SIZE = 2*TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE + TUNNEL_GATEWAY_HEADER_SIZE + 28; // reserved for alignment and NTCP 16 + 6 + 6
 
@@ -229,6 +230,10 @@ namespace tunnel
 
 			std::shared_ptr<I2NPMessage> NewI2NPTunnelMessage (bool endpoint);
 
+			void SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels);
+			uint16_t GetMaxNumTransitTunnels () const { return m_MaxNumTransitTunnels; };
+			bool IsTooManyTransitTunnels () const { return m_TransitTunnels.size () >= m_MaxNumTransitTunnels; }; 
+			
 		private:
 
 			template<class TTunnel>
@@ -287,6 +292,7 @@ namespace tunnel
 			i2p::util::Queue<std::shared_ptr<I2NPMessage> > m_Queue;
 			i2p::util::MemoryPoolMt<I2NPMessageBuffer<I2NP_TUNNEL_ENPOINT_MESSAGE_SIZE> > m_I2NPTunnelEndpointMessagesMemoryPool;
 			i2p::util::MemoryPoolMt<I2NPMessageBuffer<I2NP_TUNNEL_MESSAGE_SIZE> > m_I2NPTunnelMessagesMemoryPool;
+			uint16_t m_MaxNumTransitTunnels; 
 			// count of tunnels for total TCSR algorithm
 			int m_TotalNumSuccesiveTunnelCreations, m_TotalNumFailedTunnelCreations;
 			double m_TunnelCreationSuccessRate;