enable SSU2 server

daemon/Daemon.cpp

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2020, The PurpleI2P Project
+* Copyright (c) 2013-2022, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -377,6 +377,7 @@ namespace util
 		}
 
 		bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
+		bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2);
 		bool ssu; i2p::config::GetOption("ssu", ssu);
 		bool checkInReserved; i2p::config::GetOption("reservedrange", checkInReserved);
 		LogPrint(eLogInfo, "Daemon: Starting Transports");
@@ -384,7 +385,7 @@ namespace util
 		if(!ntcp2) LogPrint(eLogInfo, "Daemon: NTCP2 disabled");
 
 		i2p::transport::transports.SetCheckReserved(checkInReserved);
-		i2p::transport::transports.Start(ntcp2, ssu);
+		i2p::transport::transports.Start(ntcp2, ssu, ssu2);
 		if (i2p::transport::transports.IsBoundSSU() || i2p::transport::transports.IsBoundNTCP2())
 			LogPrint(eLogInfo, "Daemon: Transports started");
 		else

libi2pd/RouterInfo.cpp

@@ -1223,11 +1223,12 @@ namespace data
 				}
 			}
 
-			if (address.IsNTCP2 () && isPublished)
+			if ((address.IsNTCP2 () && isPublished) || address.IsSSU2 ())
 			{
-				// publish i for NTCP2
+				// publish i for NTCP2 or SSU2
 				WriteString ("i", properties); properties << '=';
-				WriteString (address.i.ToBase64 (16), properties); properties << ';';
+				size_t len = address.IsSSU2 () ? 32 : 16;
+				WriteString (address.i.ToBase64 (len), properties); properties << ';';
 			}
 
 			if (isPublished || address.ssu)

libi2pd/SSU2.cpp

@@ -11,6 +11,7 @@
 #include "Log.h"
 #include "RouterContext.h"
 #include "Transports.h"
+#include "Config.h"
 #include "SSU2.h"
 
 namespace i2p
@@ -210,9 +211,23 @@ namespace transport
 			for (const auto& address: addresses)
 			{
 				if (!address) continue;
-				if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2 && address->port)
+				if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2)
 				{
-					OpenSocket (address->port);
+					auto port =  address->port;
+					if (!port)
+					{
+						uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port);
+						if (ssu2Port) port = ssu2Port;
+						else
+						{
+							uint16_t p; i2p::config::GetOption ("port", p);
+							if (p) port = p;
+						}	
+					}	
+					if (port)
+						OpenSocket (port);
+					else
+						LogPrint (eLogError, "SSU2: Can't start server because port not specified ");
 					break;
 				}
 			}	

libi2pd/Transports.cpp

@@ -157,7 +157,7 @@ namespace transport
 		}
 	}
 
-	void Transports::Start (bool enableNTCP2, bool enableSSU)
+	void Transports::Start (bool enableNTCP2, bool enableSSU, bool enableSSU2)
 	{
 		if (!m_Service)
 		{
@@ -217,6 +217,8 @@ namespace transport
 				}
 			}
 		}
+		// create SSU2 server
+		if (enableSSU2) m_SSU2Server = new SSU2Server ();
 		
 		// bind to interfaces
 		bool ipv4; i2p::config::GetOption("ipv4", ipv4);
@@ -282,6 +284,7 @@ namespace transport
 			}
 			if (m_SSUServer) DetectExternalIP ();
 		}
+		if (m_SSU2Server) m_SSU2Server->Start ();
 		
 		m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5*SESSION_CREATION_TIMEOUT));
 		m_PeerCleanupTimer->async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1));

libi2pd/Transports.h

@@ -87,7 +87,7 @@ namespace transport
 			Transports ();
 			~Transports ();
 
-			void Start (bool enableNTCP2=true, bool enableSSU=true);
+			void Start (bool enableNTCP2=true, bool enableSSU=true, bool enableSSU2=false);
 			void Stop ();
 
 			bool IsBoundSSU() const { return m_SSUServer != nullptr; }