/* if_loop.c 4.5 81/12/22 */
* Loopback interface driver for protocol testing and timing.
#include "../net/in_systm.h"
#include "../net/ip_var.h"
register struct ifnet
*ifp
= &loif
;
ifp
->if_addr
= if_makeaddr(ifp
->if_net
, 0);
ifp
->if_output
= looutput
;
IF_ENQUEUE(&ipintrq
, m0
);
printf("lo%d: can't encapsulate pf%d\n", ifp
->if_unit
, pf
);