tun_sigeuid        94 net/if_tun.c   	uid_t		tun_sigeuid;	/* euid for process that set tun_pgid */
tun_sigeuid       588 net/if_tun.c   		    tp->tun_siguid, tp->tun_sigeuid);
tun_sigeuid       672 net/if_tun.c   		tp->tun_sigeuid = p->p_ucred->cr_uid;