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Fix timeouts. Triggered updates are not done, yet.

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This commit is contained in:
Pavel Machek 1999-11-25 12:01:45 +00:00
parent 455ca441d9
commit 774f149959
2 changed files with 11 additions and 4 deletions
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1
nest/route.h
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@ -139,6 +139,7 @@ typedef struct rte {
node garbage; /* List for garbage collection */
byte metric; /* RIP metric */
u16 tag; /* External route tag */
bird_clock_t lastmodX; /* Strange kind of last modification time */
} rip;
#endif
#ifdef CONFIG_OSPF

14
proto/rip/rip.c
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@ -8,7 +8,7 @@
FIXME: IpV6 support: packet size
FIXME: IpV6 support: use right address for broadcasts
FIXME: IpV6 support: receive "route using" blocks
FIXME: Do we send "triggered updates" correctly?
FIXME: Do we send "triggered updates" correctly? No.
FIXME: When route's metric changes to 16, start garbage collection immediately? Do _not_ restart on new updates with metric == 16.
FIXME: When route's 60 seconds old and we get same metric, use that!
FIXME: Triggered updates. When triggered update was sent, don't send new one for something between 1 and 5 seconds (and send one after that).
@ -408,12 +408,12 @@ rip_timer(timer *t)
rte = SKIP_BACK( struct rte, u.rip.garbage, e );
DBG( "Garbage: " ); rte_dump( rte );
if (now - rte->lastmod > P_CF->timeout_time) {
if (now - rte->u.rip.lastmodX > P_CF->timeout_time) {
debug( "RIP: entry is too old: " ); rte_dump( rte );
e->metric = P_CF->infinity;
}
if (now - rte->lastmod > P_CF->garbage_time) {
if (now - rte->u.rip.lastmodX > P_CF->garbage_time) {
debug( "RIP: entry is much too old: " ); rte_dump( rte );
rte_discard(p->table, rte);
}
@ -694,8 +694,13 @@ rip_rte_better(struct rte *new, struct rte *old)
if (old->u.rip.metric > new->u.rip.metric)
return 1;
if (new->u.rip.metric == 16) {
struct proto *p = new->attrs->proto;
new->u.rip.lastmodX = now - P_CF->timeout_time; /* Check this: if new metric is 16, act as it was timed out */
}
if ((old->u.rip.metric == new->u.rip.metric) &&
((now - old->lastmod) > 60)) /* FIXME (nonurgent): this probably should be P_CF->timeout_time / 2 if old->attrs->proto == new->attrs->proto, else don't do this check */
((now - old->u.rip.lastmodX) > 60)) /* FIXME (nonurgent): this probably should be P_CF->timeout_time / 2 if old->attrs->proto == new->attrs->proto, else don't do this check */
return 1;
return 0;
@ -705,6 +710,7 @@ static void
rip_rte_insert(net *net, rte *rte)
{
struct proto *p = rte->attrs->proto;
rte->u.rip.lastmodX = now;
add_head( &P->garbage, &rte->u.rip.garbage );
}