<def f='src/src/sys/net/bpf.h' l='469' ll='474' type='void bpf_mtap_af(struct ifnet * _ifp, __uint32_t _af, struct mbuf * _m)'/>
<use f='src/src/sys/net/if_gif.c' l='592' u='c' c='gif_input'/>
<use f='src/src/sys/net/if_gre.c' l='857' u='c' c='gre_input'/>
<use f='src/src/sys/net/if_gre.c' l='901' u='c' c='gre_output'/>
<use f='src/src/sys/net/if_loop.c' l='249' u='c' c='looutput'/>
<use f='src/src/sys/net/if_stf.c' l='416' u='c' c='stf_output'/>
<use f='src/src/sys/net/if_stf.c' l='650' u='c' c='in_stf_input'/>
<use f='src/src/sys/net/if_tun.c' l='566' u='c' c='tun_output'/>
<use f='src/src/sys/net/if_tun.c' l='980' u='c' c='tunwrite'/>
