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authorOndrej Filip <feela@network.cz>2000-08-18 18:44:37 +0200
committerOndrej Filip <feela@network.cz>2000-08-18 18:44:37 +0200
commitf321a61f77262d33dd43d50136c8116ebf8139c6 (patch)
treee4b06b081f67b2d96ff3775a662e2c70465a87dc /proto/ospf
parent88aa2af7effa3752d033ccab5e18fb1303603585 (diff)
downloadbird-f321a61f77262d33dd43d50136c8116ebf8139c6.tar
bird-f321a61f77262d33dd43d50136c8116ebf8139c6.zip
Fixed bug in nex hop calculation of external routes.
Diffstat (limited to 'proto/ospf')
-rw-r--r--proto/ospf/rt.c31
1 files changed, 18 insertions, 13 deletions
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 743b585..a7b541d 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -263,6 +263,7 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
struct top_hash_entry *en,*etmp,*absr;
struct fib *ef=&po->efib;
struct extfib *nf;
+ struct infib *inf;
struct fib_iterator fit;
struct ospf_area *oa=NULL,*atmp,*absroa;
struct proto *p=&po->proto;
@@ -366,18 +367,18 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
}
tag=lt->tag;
}
- else
+ else /* FW address !=0 */
{
- nf=NULL; /* FW address !=0 */
+ inf=NULL;
WALK_LIST(atmp,po->area_list)
{
- if((nf=fib_route(&atmp->infib,lt->fwaddr,32))!=NULL)
+ if((inf=fib_route(&atmp->infib,lt->fwaddr,32))!=NULL)
{
break;
}
}
- if(nf==NULL)
+ if(inf==NULL)
{
DBG("Cannot find network route (GW=%I)\n",lt->fwaddr);
continue;
@@ -385,42 +386,46 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
if(lt->etos>0)
{
- met=nf->metric;
+ met=inf->metric;
met2=lt->metric;
}
else
{
- met=nf->metric+lt->metric;
+ met=inf->metric+lt->metric;
met2=LSINFINITY;
}
tag=lt->tag;
if((nn=neigh_find(p,&lt->fwaddr,0))!=NULL)
{
- nnh=nn->addr;
+ nnh=IPA_NONE;
nnhi=nn->iface;
}
else
{
- nnh=nf->nh;
- nnhi=nf->nhi;
+ nnh=inf->en->nh;
+ nnhi=inf->en->nhi;
}
-
}
nf=fib_get(ef,&ip, mlen);
- if(((nf->metric>met)&&(nf->metric2==met2)) || /* both E1 or E2
+ if((nf->metric==LSINFINITY) || /* nf is new */
+ ((met<nf->metric)&&(nf->metric2==met2)) || /* both E1 or E2
* with same metric */
- ((nf->metric2>met2)&&(nf->metric2!=LSINFINITY)) || /* E2 smaller and
+ ((met2<nf->metric2)&&(nf->metric2!=LSINFINITY)) || /* E2 smaller and
* 1st is not E1 */
((nf->metric2!=LSINFINITY)&&(met2==LSINFINITY))) /* 2nd is E1 and
* 1st is E2 */
{
+ if(nf->metric!=LSINFINITY)
+ OSPF_TRACE(D_EVENTS,
+ "Rewritting %I/%d met=%d, met2=%d, nmet=%d, nmet2=%d",
+ ip, mlen, nf->metric, nf->metric2, met, met2);
nf->metric=met;
nf->metric2=met2;
nf->tag=tag;
- if(ipa_compare(nnh,ipa_from_u32(0))!=0)
+ if(nnhi!=NULL)
{
nf->nh=nnh;
nf->nhi=nnhi;