[tproxy] Problem with Tproxy more kernel2.6.22.9

Ming-Ching Tiew mingching.tiew at redtone.com
Fri Jan 11 16:46:13 CET 2008

Laszlo Attila Toth wrote:
> I correct this in the next release, which will also contain patch for 
> iptables 1.4.

Because of the bridge problem mentioned in the list, I had to setup 
bridge redirect target for packets to arrive at the real interfaces ( vs 
br0 ). However, when doing so, if the real interface has no IP address, 
it will cause kernel ooops due to accessing null pointers.

I made a small change here to avoid the kernel ooops :-

@@ -394,7 +394,7 @@
     if (lport == 0)
               lport = hp->dest;
-      if (laddr == 0)
+      if (laddr == 0 && indev->ifa_list )
               laddr = indev->ifa_list->ifa_local;
      DEBUGP(KERN_DEBUG "IPT_TPROXY: performing redirect to 
%08x:%04x\n", laddr, lport);

Not sure it will be relevent to your next release. If not, kindly ignore.


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