close stale sessions on thaw because they are probably already gone. this removes them and forces the sessions to be renegotiated.

llarp/link/i_link_manager.hpp

@@ -70,6 +70,9 @@ namespace llarp
     virtual void
     ForEachInboundLink(std::function<void(LinkLayer_ptr)> visit) const = 0;
 
+    virtual void
+    ForEachOutboundLink(std::function<void(LinkLayer_ptr)> visit) const = 0;
+
     /// close all connections to this peer
     /// remove all link layer commits
     virtual void

llarp/link/link_manager.cpp

@@ -225,6 +225,15 @@ namespace llarp
     }
   }
 
+  void
+  LinkManager::ForEachOutboundLink(std::function<void(LinkLayer_ptr)> visit) const
+  {
+    for (const auto& link : outboundLinks)
+    {
+      visit(link);
+    }
+  }
+
   size_t
   LinkManager::NumberOfConnectedRouters() const
   {

llarp/link/link_manager.hpp

@@ -65,6 +65,9 @@ namespace llarp
     void
     ForEachInboundLink(std::function<void(LinkLayer_ptr)> visit) const override;
 
+    void
+    ForEachOutboundLink(std::function<void(LinkLayer_ptr)> visit) const override;
+
     size_t
     NumberOfConnectedRouters() const override;
 

llarp/router/router.cpp

@@ -125,6 +125,19 @@ namespace llarp
   Router::Thaw()
   {
     LogInfo("We arise from a long sleep, probably need to reset the network state");
+    // get pubkeys we are connected to
+    std::unordered_set<RouterID> peerPubkeys;
+    linkManager().ForEachPeer([&peerPubkeys](auto peer) {
+      if (not peer)
+        return;
+      peerPubkeys.emplace(peer->GetPubKey());
+    });
+    // close our sessions to them on link layer
+    linkManager().ForEachOutboundLink([peerPubkeys](const auto& link) {
+      for (const auto& remote : peerPubkeys)
+        link->CloseSessionTo(remote);
+    });
+    // thaw endpoints
     hiddenServiceContext().ForEachService([](const auto& name, const auto& ep) -> bool {
       LogInfo(name, " thawing...");
       ep->Thaw();