<def f='src/src/sys/net/if.c' l='184' type='int'/>
<use f='src/src/sys/net/if.c' l='660' u='r' c='if_initialize'/>
<dec f='src/src/sys/net/if_tun.c' l='70' type='int'/>
<use f='src/src/sys/net/if_tun.c' l='256' u='r' c='tunattach0'/>
