Symbol: TUN_ASYNC
sys/net/if_tuntap.c
1783
tp->tun_flags |= TUN_ASYNC;
sys/net/if_tuntap.c
1785
tp->tun_flags &= ~TUN_ASYNC;
sys/net/if_tuntap.c
933
if (tp->tun_flags & TUN_ASYNC && tp->tun_sigio) {
sys/net/if_tuntap.c
986
if ((tp->tun_flags & TUN_ASYNC) && (tp->tun_sigio != NULL)) {