The following reply was made to PR kern/165190; it has been noted by GNATS.
From: Sergey Matveychuk <s...@freebsd.org>
To: bug-follo...@freebsd.org, pub...@macfreek.nl
Cc:
Subject: Re: kern/165190: [ipfw] [lo] loopback interface is not marking ipv6
packets
Date: Mon, 20 Feb 2012 03:18:13 +0400
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Julian wrongs here.
Try the patch please.
I've found the superfluous code in nd6.c when wrote a patch for
divert(4) and was very annoyed this loopback behaviour.
For unknown reasons KAME authors decided to fake interface for loopback.
It differs from IPv4 code, so, I guess, it should be fixed. But I could
not proof it. Your example is better for this.
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--- sys/netinet6/nd6.c.orig 2011-02-25 17:48:54.000000000 +0300
+++ sys/netinet6/nd6.c 2011-02-25 17:49:51.000000000 +0300
@@ -1928,10 +1928,6 @@
}
return (error);
}
- if ((ifp->if_flags & IFF_LOOPBACK) != 0) {
- return ((*ifp->if_output)(origifp, m, (struct sockaddr *)dst,
- NULL));
- }
error = (*ifp->if_output)(ifp, m, (struct sockaddr *)dst, NULL);
return (error);
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