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authorOndrej Filip <feela@network.cz>2000-04-30 13:31:05 +0200
committerOndrej Filip <feela@network.cz>2000-04-30 13:31:05 +0200
commitc6c56264361e102691fe42134ab585f631f83898 (patch)
tree6636ad67900ebf8e5c21c4be5c023e2e0df7e7ca /proto/ospf/rt.c
parente80e9d0da5d737b7f6e65358067f62a6ac85f4fe (diff)
downloadbird-c6c56264361e102691fe42134ab585f631f83898.tar
bird-c6c56264361e102691fe42134ab585f631f83898.zip
Sync with nest's rt table and some minor improvements.
Diffstat (limited to 'proto/ospf/rt.c')
-rw-r--r--proto/ospf/rt.c67
1 files changed, 55 insertions, 12 deletions
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 2d923ea..e950cf3 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -40,7 +40,7 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
{
struct top_hash_entry *act,*tmp;
node *n;
- struct ospf_lsa_net *net;
+ struct ospf_lsa_net *netw;
n=HEAD(oa->cand);
act=SKIP_BACK(struct top_hash_entry, cn, n);
@@ -72,21 +72,53 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
log("Unknown link type in router lsa.\n");
break;
}
- add_cand(&oa->cand,tmp,act,act->dist+rtl->metric);
+ add_cand(&oa->cand,tmp,act,act->dist+rtl->metric,p);
}
break;
case LSA_T_NET:
- net=(struct ospf_lsa_net *)act->lsa_body;
- rts=(u32 *)(net+1);
+ netw=(struct ospf_lsa_net *)act->lsa_body;
+ rts=(u32 *)(netw+1);
for(i=0;i<(act->lsa.length-sizeof(struct ospf_lsa_header)-
sizeof(struct ospf_lsa_net))/sizeof(u32);i++)
{
tmp=ospf_hash_find(oa->gr, *rts, *rts, LSA_T_RT);
- add_cand(&oa->cand,tmp,act,act->dist);
+ add_cand(&oa->cand,tmp,act,act->dist,p);
}
break;
}
/* FIXME Now modify rt for this entry */
+ if((act->lsa.type==LSA_T_NET)&&(act->nhi!=NULL))
+ {
+ net *ne;
+ rte *e;
+ ip_addr ip;
+ struct ospf_lsa_net *ln=en->lsa_body;
+
+ a0.proto=p;
+ a0.source=RTS_OSPF;
+ a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
+ a0.cast=RTC_UNICAST;
+ a0.dest=RTD_ROUTER; /* FIXME */
+ a0.flags=0;
+ a0.iface=act->nhi;
+ a0.gw=act->nh;
+ ip=ipa_from_u32(act->lsa.id);
+
+
+ ne=net_get(p->table, ip, ipa_mklen(ln->netmask));
+ e=rte_get_temp(&a0);
+ e->u.ospf.metric1=en->dist;
+ e->u.ospf.metric2=0;
+ e->u.ospf.tag=0; /* FIXME Some config? */
+
+ rte_update(p->table, ne, p, e);
+
+ //a0.from=act->lsa.rt;
+ }
+
+
+
+
}
/* Now calculate routes to stub networks */
@@ -121,7 +153,7 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
void
add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
- u16 dist)
+ u16 dist, struct proto *p)
{
node *prev,*n;
int flag=0;
@@ -137,8 +169,10 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
* FIXME The line above is not a bug, but we don't support
* multiple next hops. I'll start as soon as nest will
*/
+
+ en->nhi=NULL;
- en->nh=calc_next_hop(par);
+ calc_next_hop(par,en,p);
if(en->color==CANDIDATE) /* We found shorter path */
{
@@ -166,12 +200,21 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
}
-struct top_hash_entry *
-calc_next_hop(struct top_hash_entry *par)
+void
+calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
+ struct proto *p)
{
- if(par->nh==NULL)
+ struct ospf_neighbor *neigh;
+ struct proto_ospf *po=(struct proto_ospf *)p;
+ if(par->nhi==NULL)
{
- if(par->lsa.type!=LSA_T_RT) return NULL;
+ neighbor *nn;
+ if(par->lsa.type!=LSA_T_RT) return;
+ if((neigh=find_neigh_noifa(po,en->lsa.rt))==NULL) bug("XXX\n");
+ nn=neigh_find(p,&neigh->ip,0);
+ en->nh=nn->addr;
+ en->nhi=nn->iface;
}
- return par;
+ en->nh=par->nh;
+ en->nhi=par->nhi;
}