try fixing all that tun shit, YOLO

include/llarp/service/IntroSet.hpp

@@ -60,6 +60,7 @@ namespace llarp
       IntroSet&
       operator=(const IntroSet& other)
       {
+        I.clear();
         A       = other.A;
         I       = other.I;
         K       = other.K;

llarp/ev.hpp

@@ -42,7 +42,7 @@ namespace llarp
     sendto(const sockaddr* dst, const void* data, size_t sz) = 0;
 
     /// used for tun interface
-    bool
+    virtual bool
     do_write(void* data, size_t sz)
     {
       return write(fd, data, sz) != -1;

llarp/ev_epoll.hpp

@@ -96,10 +96,10 @@ namespace llarp
     read(void* buf, size_t sz)
     {
       ssize_t ret = tuntap_read(tunif, buf, sz);
-      if(ret > 4 && t->recvpkt)
+      if(ret > 0 && t->recvpkt)
       {
-        // don't include packet info
-        t->recvpkt(t, ((byte_t*)buf) + 4, ret - 4);
+        // does not have pktinfo
+        t->recvpkt(t, buf, ret);
       }
       return ret;
     }

llarp/ev_kqueue.hpp

@@ -93,6 +93,19 @@ namespace llarp
       return -1;
     }
 
+    bool
+    do_write(void* buf, size_t sz)
+    {
+      iovec vecs[2];
+      // TODO: IPV6
+      uint32_t t       = htonl(AF_INET);
+      vecs[0].iov_base = &t;
+      vecs[0].iov_len  = sizeof(t);
+      vecs[1].iov_base = data;
+      vecs[1].iov_len  = sz;
+      return writev(fd, vecs, 2) != -1;
+    }
+
     void
     flush_write()
     {
@@ -108,7 +121,7 @@ namespace llarp
     {
       ssize_t ret = tuntap_read(tunif, buf, sz);
       if(ret > 4 && t->recvpkt)
-        t->recvpkt(t, ((byte_t *)buf) + 4, ret - 4);
+        t->recvpkt(t, ((byte_t*)buf) + 4, ret - 4);
       return ret;
     }
 

llarp/service/endpoint.cpp

@@ -922,10 +922,18 @@ namespace llarp
     {
       if(markedBad)
         return true;
-      if(i && currentIntroSet.T < i->T)
+      if(i)
       {
+        if(currentIntroSet.T >= i->T)
+        {
+          llarp::LogInfo("introset is old, dropping");
+          return true;
+        }
         currentIntroSet = *i;
-        ShiftIntroduction();
+        if(!ShiftIntroduction())
+        {
+          llarp::LogWarn("failed to pick new intro during introset update");
+        }
         if(GetPathByRouter(remoteIntro.router) == nullptr)
           BuildOneAlignedTo(remoteIntro.router);
       }

vendor/libtuntap-master/tuntap-unix-linux.c

@@ -72,7 +72,7 @@ tuntap_sys_start(struct device *dev, int mode, int tun)
     tuntap_log(TUNTAP_LOG_ERR, "Invalid parameter 'mode'");
     return -1;
   }
-  // ifr.ifr_flags |= IFF_NO_PI;
+  ifr.ifr_flags |= IFF_NO_PI;
 
   if(tun < 0)
   {