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Cross-protocol issues solved better

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This commit is contained in:
Pavel Machek 2000-03-29 08:58:06 +00:00
parent 963ea03d87
commit 8d2e3eba92
1 changed files with 19 additions and 13 deletions
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20
proto/rip/rip.c
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@ -704,15 +704,19 @@ rip_rt_notify(struct proto *p, struct network *net, struct rte *new, struct rte
e->nexthop = new->attrs->gw;
e->metric = 0;
e->whotoldme = IPA_NONE;
if (new->attrs->proto == p) {
e->tag = ea_find(attrs, EA_RIP_TAG)->u.data;
e->metric = ea_find(attrs, EA_RIP_METRIC)->u.data;
if (e->metric > P_CF->infinity)
e->metric = P_CF->infinity;
e->whotoldme = new->attrs->from;
}
if (!e->metric) /* FIXME: this is metric for external routes. Should it be configurable? */
if (new->attrs->proto == p)
e->whotoldme = new->attrs->from;
if (!e->metric) /* This is metric for external routes. Notice
that I do honour it even if it comes from other protocol than this
rip. That's okay: this way user can set his own value for external
routes in rip. */
e->metric = 5;
e->updated = e->changed = now;
e->flags = 0;
@ -722,6 +726,8 @@ rip_rt_notify(struct proto *p, struct network *net, struct rte *new, struct rte
static int
rip_rte_better(struct rte *new, struct rte *old)
{
struct proto *p = new->attrs->proto;
if (ipa_equal(old->attrs->from, new->attrs->from))
return 1;
@ -731,13 +737,13 @@ rip_rte_better(struct rte *new, struct rte *old)
if (old->u.rip.metric > new->u.rip.metric)
return 1;
if ((old->u.rip.metric != 16) && (new->u.rip.metric == 16)) { /* FIXME: check wrt. strange infinity values */
struct proto *p = new->attrs->proto;
if ((old->u.rip.metric < 16) && (new->u.rip.metric == P_CF->infinity)) {
new->u.rip.lastmodX = now - P_CF->timeout_time; /* Check this: if new metric is 16, act as it was timed out */
}
if (old->attrs->proto == new->attrs->proto) /* This does not make much sense for different protocols */
if ((old->u.rip.metric == new->u.rip.metric) &&
((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 */
((now - old->u.rip.lastmodX) > (P_CF->timeout_time / 2)))
return 1;
return 0;