tree 6f7d497284a8951b8681517f7866851b32a7b02e
parent 8164f1b79731ad8ad9c713dc53d587a3b746f82f
author Balazs Scheidler <bazsi@balabit.hu> 1226892759 -0800
committer David S. Miller <davem@davemloft.net> 1226892759 -0800

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>