K 10
svn:author
V 5
andre
K 8
svn:date
V 27
2004-08-27T15:39:34.000000Z
K 7
svn:log
V 520
In the case the destination of a packet was changed by the packet filter
to point to a local IP address; and the packet was sourced from this host
we fill in the m_pkthdr.rcvif with a pointer to the loopback interface.

Before the function ifunit("lo0") was used to obtain the ifp.  However
this is sub-optimal from a performance point of view and might be dangerous
if the loopback interface has been renamed.  Use the global variable 'loif'
instead which always points to the loopback interface.

Submitted by:	brooks

END