void arpFlush (void)
{
register struct llinfo_arp *la;
FAST struct rtentry * pRoute;
int s;
#ifdef VIRTUAL_STACK
virtualStackIdCheck();
la = _llinfo_arp.la_next;
#else
la = llinfo_arp.la_next;
#endif /* VIRTUAL_STACK */
s = splnet ();
#ifdef VIRTUAL_STACK
while (la != &_llinfo_arp)
#else
while (la != &llinfo_arp)
#endif
{
pRoute = la->la_rt;
la = la->la_next;
/* if entry permanent */
if ((pRoute->rt_rmx.rmx_expire == 0) || (pRoute->rt_flags == 0))
continue;
arptfree(la->la_prev); /* timer has expired; clear */
}
splx (s);
}
/*
* Timeout routine. Age arp_tab entries periodically.
*/
void
arptimer()
{
int s = splnet();
register struct llinfo_arp *la = llinfo_arp.la_next;
timeout(arptimer, (caddr_t)0, arpt_prune * hz);
while (la != &llinfo_arp) {
register struct rtentry *rt = la->la_rt;
la = la->la_next;
if (rt->rt_expire && rt->rt_expire <= time.tv_sec)
arptfree(la->la_prev); /* timer has expired, clear */
}
splx(s);
}
/*
* Timeout routine. Age arp_tab entries once a minute.
*/
arptimer()
{
register struct arptab *at;
register i;
TIMEOUT(arptimer, (caddr_t)0, ARPT_AGE * hz);
at = &arptab[0];
for (i = 0; i < ARPTAB_SIZE; i++, at++) {
if (at->at_flags == 0 || (at->at_flags & ATF_PERM))
continue;
if (++at->at_timer < ((at->at_flags&ATF_COM) ?
ARPT_KILLC : ARPT_KILLI))
continue;
/* timer has expired, clear entry */
arptfree(at);
}
}
void
in_arpdrain(void *ignored_arg)
{
#pragma unused (ignored_arg)
struct llinfo_arp *la, *ola;
struct timeval timenow;
lck_mtx_lock(rnh_lock);
la = llinfo_arp.lh_first;
getmicrotime(&timenow);
while ((ola = la) != 0) {
struct rtentry *rt = la->la_rt;
la = la->la_le.le_next;
RT_LOCK(rt);
if (rt->rt_expire && rt->rt_expire <= timenow.tv_sec)
arptfree(ola); /* timer has expired, clear */
else
RT_UNLOCK(rt);
}
lck_mtx_unlock(rnh_lock);
}
