/*------------------------------------------------------------------------
* lsr_queue - generate Link State Request packets
*------------------------------------------------------------------------
*/
int
lsr_queue(struct ospf_if *pif, struct ospf_nb *pnb, struct ep *pepin)
{
struct ep *pep = 0;
struct ip *pipin = (struct ip *)pepin->ep_data;
struct ospf *poin = (struct ospf *)pipin->ip_data;
struct ospf_dd *pdd = (struct ospf_dd *)poin->ospf_data;
struct ospf_lss *plss;
struct ospf_db *pdb;
int i, nlss;
nlss = (poin->ospf_len - MINDDLEN) / LSSHDRLEN;
plss = pdd->dd_lss;
for (i=0; i<nlss; ++i, ++plss) {
pdb = db_lookup(pif->if_area, plss->lss_type,
plss->lss_lsid);
if (pdb == 0)
pep = lsr_add(pif, plss, pep);
/* if plss newer, pep = lsr_add(pif, plss, pep); */
}
if (pep && enq(pnb->nb_lsrl, pep, 0) < 0)
freebuf(pep);
lsr_xmit(pif, pnb);
}
/*------------------------------------------------------------------------
* ospftimer - update neighbor time-out values
*------------------------------------------------------------------------
*/
int
ospftimer(int delay)
{
struct ospf_if *pif;
struct ospf_nb *pnb;
int ifn, i;
pif = &ospf_if[0];
for (ifn=0; ifn<NIF; ++ifn, ++pif) {
switch (pif->if_state) {
case IFS_DOWN:
continue;
case IFS_WAITING:
pif->if_twait -= delay;
if (pif->if_twait <= 0)
if_elect(ifn);
break;
default:
break;
}
wait(pif->if_nbmutex);
pnb = &ospf_if[ifn].if_nbtab[1];
for (i=0; i<MAXNBR; ++i, ++pnb) {
if (pnb->nb_state == NBS_DOWN)
continue;
pnb->nb_lastheard -= delay;
if (pnb->nb_lastheard <= 0) {
pnb->nb_state = NBS_DOWN;
pif->if_event |= IFE_NCHNG;
}
if (pnb->nb_state == NBS_EXSTART) {
pnb->nb_trexmt -= delay;
if (pnb->nb_trexmt <= 0)
nb_rexmt(pif, pnb);
}
if (pnb->nb_state >= NBS_FULL &&
pnb->nb_tlastdd > 0) {
pnb->nb_tlastdd -= delay;
if (pnb->nb_tlastdd < 0)
freebuf(deq(pnb->nb_dsl));
}
if (headq(pnb->nb_lsrl)) {
pnb->nb_tlsr -= delay;
if (pnb->nb_tlsr <= 0)
lsr_xmit(pif, pnb);
}
}
signal(pif->if_nbmutex);
if (pif->if_event & IFE_NCHNG) {
if_elect(ifn);
pif->if_event &= ~IFE_NCHNG;
}
}
}
