start work on sighup

llarp/context.cpp

@@ -348,8 +348,15 @@ __        ___    ____  _   _ ___ _   _  ____
       llarp::LogInfo("SIGHUP");
       if(router)
       {
+        router->hiddenServiceContext().ForEachService(
+            [](const std::string &name,
+               const llarp::service::Endpoint_ptr &ep) -> bool {
+              ep->ResetInternalState();
+              llarp::LogInfo("Reset internal state for ", name);
+              return true;
+            });
         Config newconfig;
-        if(newconfig.Load(configfile.c_str()))
+        if(!newconfig.Load(configfile.c_str()))
         {
           llarp::LogError("failed to load config file ", configfile);
           return;

llarp/exit/endpoint.cpp

@@ -141,7 +141,7 @@ namespace llarp
       uint8_t queue_idx            = pktbuf.sz / llarp::routing::ExitPadSize;
       if(m_DownstreamQueues.find(queue_idx) == m_DownstreamQueues.end())
         m_DownstreamQueues.emplace(queue_idx, InboundTrafficQueue_t{});
-      auto& queue                  = m_DownstreamQueues[queue_idx];
+      auto& queue = m_DownstreamQueues[queue_idx];
       if(queue.size() == 0)
       {
         queue.emplace_back();

llarp/exit/session.hpp

@@ -48,8 +48,7 @@ namespace llarp
         return m_BundleRC;
       }
 
-      bool
-      UrgentBuild(llarp_time_t) const override;
+      bool UrgentBuild(llarp_time_t) const override;
 
       void
       HandlePathDied(llarp::path::Path_ptr p) override;

llarp/handlers/exit.cpp

@@ -186,10 +186,11 @@ namespace llarp
     }
 
     bool
-    ExitEndpoint::VisitEndpointsFor(const PubKey & pk, std::function<bool(exit::Endpoint * const)> visit)
+    ExitEndpoint::VisitEndpointsFor(
+        const PubKey &pk, std::function< bool(exit::Endpoint *const) > visit)
     {
       auto range = m_ActiveExits.equal_range(pk);
-      auto itr = range.first;
+      auto itr   = range.first;
       while(itr != range.second)
       {
         if(visit(itr->second.get()))
@@ -228,18 +229,17 @@ namespace llarp
               return;
           }
         }
-        if(!VisitEndpointsFor(pk, [&](exit::Endpoint * const ep) -> bool
-        {
-          if(!ep->QueueInboundTraffic(ManagedBuffer{pkt.Buffer()}))
-          {
-            LogWarn(Name(), " dropped inbound traffic for session ", pk,
-                    " as we are overloaded (probably)");
-            // continue iteration
-            return true;
-          }
-          // break iteration
-          return false;
-        }))
+        if(!VisitEndpointsFor(pk, [&](exit::Endpoint *const ep) -> bool {
+             if(!ep->QueueInboundTraffic(ManagedBuffer{pkt.Buffer()}))
+             {
+               LogWarn(Name(), " dropped inbound traffic for session ", pk,
+                       " as we are overloaded (probably)");
+               // continue iteration
+               return true;
+             }
+             // break iteration
+             return false;
+           }))
         {
           // we may have all dead sessions, wtf now?
           LogWarn(Name(), " dropped inbound traffic for session ", pk,

llarp/handlers/exit.hpp

@@ -26,7 +26,8 @@ namespace llarp
       Name() const;
 
       bool
-      VisitEndpointsFor(const PubKey & pk, std::function<bool(exit::Endpoint * const)> visit);
+      VisitEndpointsFor(const PubKey& pk,
+                        std::function< bool(exit::Endpoint* const) > visit);
 
       util::StatusObject
       ExtractStatus() const;

llarp/handlers/tun.cpp

@@ -433,6 +433,14 @@ namespace llarp
       return true;
     }
 
+    void
+    TunEndpoint::ResetInternalState()
+    {
+      service::Endpoint::ResetInternalState();
+      if(m_Exit)
+        m_Exit->ResetInternalState();
+    }
+
     // FIXME: pass in which question it should be addressing
     bool
     TunEndpoint::ShouldHookDNSMessage(const dns::Message &msg) const

llarp/handlers/tun.hpp

@@ -153,6 +153,9 @@ namespace llarp
       void
       Flush();
 
+      void
+      ResetInternalState() override;
+
      protected:
       using PacketQueue_t = llarp::util::CoDelQueue<
           net::IPv4Packet, net::IPv4Packet::GetTime, net::IPv4Packet::PutTime,

llarp/path/pathbuilder.cpp

@@ -181,6 +181,12 @@ namespace llarp
     {
     }
 
+    void
+    Builder::ResetInternalState()
+    {
+      buildIntervalLimit = MIN_PATH_BUILD_INTERVAL;
+    }
+
     void
     Builder::Tick(llarp_time_t now)
     {

llarp/path/pathbuilder.hpp

@@ -52,6 +52,9 @@ namespace llarp
       virtual bool
       ShouldBundleRC() const = 0;
 
+      virtual void
+      ResetInternalState() override;
+
       /// return true if we hit our soft limit for building paths too fast
       bool
       BuildCooldownHit(llarp_time_t now) const;

llarp/path/pathset.hpp

@@ -216,6 +216,10 @@ namespace llarp
         return false;
       }
 
+      /// reset all cooldown timers
+      virtual void
+      ResetInternalState() = 0;
+
       virtual bool
       SelectHop(llarp_nodedb* db, const RouterContact& prev, RouterContact& cur,
                 size_t hop, PathRole roles) = 0;

llarp/service/endpoint.cpp

@@ -596,6 +596,19 @@ namespace llarp
       return false;
     }
 
+    void
+    Endpoint::ResetInternalState()
+    {
+      path::Builder::ResetInternalState();
+      static auto resetState = [](auto& container) {
+        std::for_each(container.begin(), container.end(),
+                      [](auto& item) { item.second->ResetInternalState(); });
+      };
+
+      resetState(m_RemoteSessions);
+      resetState(m_SNodeSessions);
+    }
+
     bool
     Endpoint::ShouldPublishDescriptors(llarp_time_t now) const
     {

llarp/service/endpoint.hpp

@@ -82,6 +82,9 @@ namespace llarp
         return huint32_t{0};
       }
 
+      virtual void
+      ResetInternalState() override;
+
       /// router's logic
       /// use when sending any data on a path
       Logic*