exclude hidden routers from tunnels

NetDb.cpp

@@ -633,7 +633,7 @@ namespace data
 		}	
 	}	
 
-	const RouterInfo * NetDb::GetRandomRouter (const RouterInfo * compatibleWith, uint8_t caps) const
+	const RouterInfo * NetDb::GetRandomRouter (const RouterInfo * compatibleWith) const
 	{
 		CryptoPP::RandomNumberGenerator& rnd = i2p::context.GetRandomNumberGenerator ();
 		uint32_t ind = rnd.GenerateWord32 (0, m_RouterInfos.size () - 1);	
@@ -644,9 +644,8 @@ namespace data
 			{	
 				if (i >= ind)
 				{	
-					if (!it.second->IsUnreachable () && 
-					 (!compatibleWith || it.second->IsCompatible (*compatibleWith)) &&
-					 (!caps || (it.second->GetCaps () & caps) == caps))
+					if (!it.second->IsUnreachable () && !it.second->IsHidden () && 
+					 (!compatibleWith || it.second->IsCompatible (*compatibleWith)))
 						return it.second;
 				}	
 				else 

NetDb.h

@@ -76,7 +76,7 @@ namespace data
 			void HandleDatabaseStoreMsg (uint8_t * buf, size_t len);
 			void HandleDatabaseSearchReplyMsg (I2NPMessage * msg);
 			
-			const RouterInfo * GetRandomRouter (const RouterInfo * compatibleWith = nullptr, uint8_t caps = 0) const;
+			const RouterInfo * GetRandomRouter (const RouterInfo * compatibleWith = nullptr) const;
 
 			void PostI2NPMsg (I2NPMessage * msg);
 

RouterInfo.cpp

@@ -214,7 +214,10 @@ namespace data
 				break;	
 				case 'C':
 					m_Caps |= Caps::eSSUIntroducer;
-				break;		
+				break;	
+				case 'H':
+					m_Caps |= Caps::eHidden;
+				break;	
 				default: ;
 			}	
 			cap++;

RouterInfo.h

@@ -31,7 +31,8 @@ namespace data
 				eHighBandwidth = 0x02,
 				eReachable = 0x04,
 				eSSUTesting = 0x08,
-				eSSUIntroducer = 0x10
+				eSSUIntroducer = 0x10,
+				eHidden = 0x20
 			};
 
 			enum TransportStyle
@@ -88,6 +89,8 @@ namespace data
 			bool UsesIntroducer () const;
 			bool IsIntroducer () const { return m_Caps & eSSUIntroducer; };
 			bool IsPeerTesting () const { return m_Caps & eSSUTesting; };
+			bool IsHidden () const { return m_Caps & eHidden; };
+
 			uint8_t GetCaps () const { return m_Caps; };			
 
 			void SetUnreachable (bool unreachable) { m_IsUnreachable = unreachable; };