From 62bae2075b480a2632bed13a0ba473fccd41316b Mon Sep 17 00:00:00 2001
From: Jeff Becker <jeff@i2p.rocks>
Date: Tue, 18 Sep 2018 20:17:35 -0400
Subject: [PATCH] proper shift

---
 include/llarp/service/endpoint.hpp | 2 ++
 llarp/service/endpoint.cpp         | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/include/llarp/service/endpoint.hpp b/include/llarp/service/endpoint.hpp
index 3118bb25f..f8280319d 100644
--- a/include/llarp/service/endpoint.hpp
+++ b/include/llarp/service/endpoint.hpp
@@ -194,6 +194,8 @@ namespace llarp
         ShiftIntroduction(){};
         virtual void
         UpdateIntroSet(){};
+        virtual void
+        MarkCurrentIntroBad(){};
 
        private:
         void
diff --git a/llarp/service/endpoint.cpp b/llarp/service/endpoint.cpp
index 939c84647..114960484 100644
--- a/llarp/service/endpoint.cpp
+++ b/llarp/service/endpoint.cpp
@@ -1130,6 +1130,12 @@ namespace llarp
       auto path = m_PathSet->GetPathByRouter(remoteIntro.router);
       if(path)
       {
+        auto now = llarp_time_now_ms();
+        if(remoteIntro.ExpiresSoon(now))
+        {
+          MarkCurrentIntroBad();
+          ShiftIntroduction();
+        }
         routing::PathTransferMessage transfer(msg, remoteIntro.pathID);
         if(!path->SendRoutingMessage(&transfer, m_Endpoint->Router()))
           llarp::LogError("Failed to send frame on path");