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Bug in rte_better.

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This commit is contained in:
Ondrej Filip 2000-08-16 19:03:06 +00:00
parent e7894ecede
commit d6a7e2fb85
1 changed files with 20 additions and 12 deletions
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32
proto/ospf/ospf.c
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@ -175,24 +175,32 @@ ospf_rte_better(struct rte *new, struct rte *old)
if(new->u.ospf.metric1=LSINFINITY) return 0; if(new->u.ospf.metric1=LSINFINITY) return 0;
/* External paths are always longer that internal */
if(((new->attrs->source==RTS_OSPF) || (new->attrs->source==RTS_OSPF_IA)) if(((new->attrs->source==RTS_OSPF) || (new->attrs->source==RTS_OSPF_IA))
&& (old->attrs->source==RTS_OSPF_EXT)) return 1; && (old->attrs->source==RTS_OSPF_EXT)) return 1;
if(((old->attrs->source==RTS_OSPF) || (old->attrs->source==RTS_OSPF_IA)) if(((old->attrs->source==RTS_OSPF) || (old->attrs->source==RTS_OSPF_IA))
&& (new->attrs->source==RTS_OSPF_EXT)) return 0; && (new->attrs->source==RTS_OSPF_EXT)) return 0;
if(new->u.ospf.metric2!=0) if(new->u.ospf.metric2<old->u.ospf.metric2)
{ {
if(old->u.ospf.metric2==0) return 0; if(old->u.ospf.metric2==LSINFINITY) return 0; /* Old is E1, new is E2 */
if(new->u.ospf.metric2<old->u.ospf.metric2) return 1; return 1; /* Both are E2 */
return 0;
} }
else
if(new->u.ospf.metric2>old->u.ospf.metric2)
{ {
if(old->u.ospf.metric2!=0) return 1; if(new->u.ospf.metric2==LSINFINITY) return 1; /* New is E1, old is E2 */
return 0; /* Both are E2 */
}
/*
* E2 metrics are the same. It means that:
* 1) Paths are E2 with same metric
* 2) Paths are E1.
*/
if(new->u.ospf.metric1<old->u.ospf.metric1) return 1; if(new->u.ospf.metric1<old->u.ospf.metric1) return 1;
return 0; return 0; /* Old is shorter or same */
}
} }
static int static int
@ -419,9 +427,9 @@ ospf_get_route_info(rte *rte, byte *buf, ea_list *attrs)
if(rte->attrs->source==RTS_OSPF) type='I'; if(rte->attrs->source==RTS_OSPF) type='I';
buf += bsprintf(buf, " %c", type); buf += bsprintf(buf, " %c", type);
if(met!=' ') buf += bsprintf(buf, "%c", met); if(met!=' ') buf += bsprintf(buf, "%c", met);
buf += bsprintf(buf, " (%d/%d)", rte->pref, buf += bsprintf(buf, " (%d/%d", rte->pref, rte->u.ospf.metric1);
(rte->u.ospf.metric2==LSINFINITY) ? rte->u.ospf.metric1 : if(rte->u.ospf.metric2!=LSINFINITY) buf += bsprintf(buf, "/%d", rte->u.ospf.metric2);
rte->u.ospf.metric2); buf += bsprintf(buf, ")");
if(rte->attrs->source==RTS_OSPF_EXT && rte->u.ospf.tag) if(rte->attrs->source==RTS_OSPF_EXT && rte->u.ospf.tag)
{ {
buf += bsprintf(buf, " [%x]", rte->u.ospf.tag); buf += bsprintf(buf, " [%x]", rte->u.ospf.tag);