filter out unspecified addresses. Check floodfill status change

libi2pd/NetDb.cpp

@@ -207,9 +207,18 @@ namespace data
 		{
 			if (r->IsNewer (buf, len))
 			{
+				bool wasFloodfill = r->IsFloodfill ();
 				r->Update (buf, len);
 				LogPrint (eLogInfo, "NetDb: RouterInfo updated: ", ident.ToBase64());
-				// TODO: check if floodfill has been changed
+				if (wasFloodfill != r->IsFloodfill ()) // if floodfill status updated
+				{
+					LogPrint (eLogDebug, "NetDb: RouterInfo floodfill status updated: ", ident.ToBase64());
+					std::unique_lock<std::mutex> l(m_FloodfillsMutex);
+					if (wasFloodfill)
+						m_Floodfills.remove (r);	
+					else	
+						m_Floodfills.push_back (r);
+				}	
 			}
 			else
 			{
@@ -220,7 +229,7 @@ namespace data
 		else
 		{
 			r = std::make_shared<RouterInfo> (buf, len);
-			if (!r->IsUnreachable ())
+			if (!r->IsUnreachable () && r->HasValidAddresses ())
 			{
 				bool inserted = false;
 				{
@@ -559,11 +568,11 @@ namespace data
 					++it;
 				}
 			}
-			// clean up expired floodfills
+			// clean up expired floodfills or not floodfills anymore
 			{
 				std::unique_lock<std::mutex> l(m_FloodfillsMutex);
 				for (auto it = m_Floodfills.begin (); it != m_Floodfills.end ();)
-					if ((*it)->IsUnreachable ())
+					if ((*it)->IsUnreachable () || !(*it)->IsFloodfill ())
 						it = m_Floodfills.erase (it);
 					else
 						++it;

libi2pd/RouterInfo.cpp

@@ -210,6 +210,13 @@ namespace data
 					address->host = boost::asio::ip::address::from_string (value, ecode);
 					if (!ecode)
 					{
+#if BOOST_VERSION >= 104900
+						if (!address->host.is_unspecified ()) // check if address is valid
+#else
+						address->host.to_string (ecode);
+						if (!ecode)
+#endif
+						{	
 							// add supported protocol
 							if (address->host.is_v4 ())
 								supportedTransports |= (address->transportStyle == eTransportNTCP) ? eNTCPV4 : eSSUV4;
@@ -217,6 +224,7 @@ namespace data
 								supportedTransports |= (address->transportStyle == eTransportNTCP) ? eNTCPV6 : eSSUV6;
 						}	
 					}
+				}
 				else if (!strcmp (key, "port"))
 					address->port = boost::lexical_cast<int>(value);
 				else if (!strcmp (key, "mtu"))

libi2pd/RouterInfo.h

@@ -169,6 +169,7 @@ namespace data
 			void EnableV4 ();
 			void DisableV4 ();
 			bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };
+			bool HasValidAddresses () const { return m_SupportedTransports; };
 			bool UsesIntroducer () const;
 			bool IsIntroducer () const { return m_Caps & eSSUIntroducer; };
 			bool IsPeerTesting () const { return m_Caps & eSSUTesting; };

libi2pd/Transports.cpp

@@ -426,14 +426,6 @@ namespace transport
 				auto address = peer.router->GetNTCPAddress (!context.SupportsV6 ());
 				if (address && m_NTCPServer)
 				{
-#if BOOST_VERSION >= 104900
-					if (!address->host.is_unspecified ()) // we have address now
-#else
-					boost::system::error_code ecode;
-				  address->host.to_string (ecode);
-					if (!ecode)
-#endif
-					{
 					if (!peer.router->UsesIntroducer () && !peer.router->IsUnreachable ())
 					{
 						if(!m_NTCPServer->ShouldLimit())
@@ -459,7 +451,6 @@ namespace transport
 						}
 					}
 				}
-				}
 				else
 					LogPrint (eLogDebug, "Transports: NTCP address is not present for ", i2p::data::GetIdentHashAbbreviation (ident), ", trying SSU");
 			}
@@ -469,19 +460,10 @@ namespace transport
 				if (m_SSUServer && peer.router->IsSSU (!context.SupportsV6 ()))
 				{
 					auto address = peer.router->GetSSUAddress (!context.SupportsV6 ());
-#if BOOST_VERSION >= 104900
-					if (!address->host.is_unspecified ()) // we have address now
-#else
-					boost::system::error_code ecode;
-					address->host.to_string (ecode);
-					if (!ecode)
-#endif
-					{
 					m_SSUServer->CreateSession (peer.router, address->host, address->port);
 					return true;
 				}
 			}
-			}
 			LogPrint (eLogInfo, "Transports: No NTCP or SSU addresses available");
 			peer.Done ();
 			std::unique_lock<std::mutex> l(m_PeersMutex);