if_gif.h   62 net/if_gif.c   #include <net/if_gif.h>
if_gif.h   40 netinet/in_gif.c #include <net/if_gif.h>
if_gif.h   52 netinet/ip_ether.c #include <net/if_gif.h>
if_gif.h   63 netinet6/in6_gif.c #include <net/if_gif.h>