From: Balazs Scheidler <bazsi@balabit.hu>
Date: Mon, 17 Nov 2008 03:32:39 +0000 (-0800)
Subject: TPROXY: implemented IP_RECVORIGDSTADDR socket option
X-Git-Tag: v2.6.29-rc1~581^2~705
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8b2dfe9b4501ed0047459b2756ba26e5a940a69;p=pandora-kernel.git

TPROXY: implemented IP_RECVORIGDSTADDR socket option

In case UDP traffic is redirected to a local UDP socket,
the originally addressed destination address/port
cannot be recovered with the in-kernel tproxy.

This patch adds an IP_RECVORIGDSTADDR sockopt that enables
a IP_ORIGDSTADDR ancillary message in recvmsg(). This
ancillary message contains the original destination address/port
of the packet being received.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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