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-rw-r--r--proto/ospf/lsalib.c4
-rw-r--r--proto/ospf/lsupd.c6
-rw-r--r--proto/ospf/neighbor.c4
-rw-r--r--proto/ospf/ospf.h3
-rw-r--r--proto/ospf/rt.c236
-rw-r--r--proto/ospf/rt.h8
-rw-r--r--proto/ospf/topology.c17
7 files changed, 123 insertions, 155 deletions
diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
index 4c41677..4bb0635 100644
--- a/proto/ospf/lsalib.c
+++ b/proto/ospf/lsalib.c
@@ -267,12 +267,12 @@ lsasum_calculate(struct ospf_lsa_header *h,void *body,struct proto_ospf *po)
length=h->length;
htonlsah(h,h);
- htonlsab(body,body,h->type,length);
+ htonlsab(body,body,h->type,length-sizeof(struct ospf_lsa_header));
(void)lsasum_check(h,body,po);
ntohlsah(h,h);
- ntohlsab(body,body,h->type,length);
+ ntohlsab(body,body,h->type,length-sizeof(struct ospf_lsa_header));
}
/*
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c
index b372a21..b405a66 100644
--- a/proto/ospf/lsupd.c
+++ b/proto/ospf/lsupd.c
@@ -116,7 +116,8 @@ flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
lh->age=htons(age);
help=(u8 *)(lh+1);
en=ospf_hash_find_header(oa->gr,hh);
- htonlsab(en->lsa_body,help,hh->type,hh->length);
+ htonlsab(en->lsa_body,help,hh->type,hh->length
+ -sizeof(struct ospf_lsa_header));
len=hh->length;
}
op->length=htons(len);
@@ -186,7 +187,8 @@ ospf_lsupd_tx_list(struct ospf_neighbor *n, list *l)
}
htonlsah(&(en->lsa), pktpos);
pktpos=pktpos+sizeof(struct ospf_lsa_header);
- htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length);
+ htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length
+ -sizeof(struct ospf_lsa_header));
pktpos=pktpos+en->lsa.length-sizeof(struct ospf_lsa_header);
len=len+en->lsa.length;
lsano++;
diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index 050a253..831cd62 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -27,7 +27,7 @@ neigh_chstate(struct ospf_neighbor *n, u8 state)
ifa=n->ifa;
if(n->state==NEIGHBOR_FULL)
{
- ifa->fadj++;
+ ifa->fadj--;
n->state=state;
originate_rt_lsa(ifa->oa,ifa->oa->po);
originate_net_lsa(ifa,ifa->oa->po);
@@ -39,7 +39,7 @@ neigh_chstate(struct ospf_neighbor *n, u8 state)
n->state=state;
if(state==NEIGHBOR_FULL)
{
- ifa->fadj--;
+ ifa->fadj++;
originate_rt_lsa(n->ifa->oa,n->ifa->oa->po);
originate_net_lsa(ifa,ifa->oa->po);
}
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 22064b9..f2736c6 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -26,7 +26,7 @@
#include "nest/iface.h"
#include "nest/route.h"
#include "conf/conf.h"
-#include <string.h>
+#include "lib/string.h"
#define OSPF_PROTO 89
#ifndef IPV6
@@ -334,6 +334,7 @@ struct ospf_area {
u8 stub;
u8 trcap; /* Transit capability? */
struct proto_ospf *po;
+ struct fib infib; /* FIB for intra-area routes */
};
struct proto_ospf {
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 4625df6..1950342 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -9,12 +9,12 @@
#include "ospf.h"
void
-init_stub_fib(struct fib_node *fn)
+init_infib(struct fib_node *fn)
{
- struct stub_fib *sf=(struct stub_fib *)fn;
+ struct infib *f=(struct infib *)fn;
- sf->metric=LSINFINITY;
- sf->nhi=NULL;
+ f->metric=LSINFINITY;
+ f->en=NULL;
}
void
@@ -24,13 +24,17 @@ ospf_rt_spfa(struct ospf_area *oa)
u32 i,*rts;
struct ospf_lsa_rt *rt;
struct ospf_lsa_rt_link *rtl,*rr;
- struct fib fib;
- struct stub_fib *sf;
+ struct fib *in=&oa->infib;
+ struct infib *nf;
bird_clock_t delta;
int age=0,flush=0;
struct proto *p=&oa->po->proto;
+ ip_addr ip;
+ struct fib_iterator fit;
+ struct ospf_lsa_net *ln;
flush=can_flush_lsa(oa);
+
if((delta=now-oa->lage)>=AGINGDELTA)
{
oa->lage=now;
@@ -44,6 +48,13 @@ ospf_rt_spfa(struct ospf_area *oa)
if(age) ospf_age(en,delta,flush,oa);
}
+ FIB_WALK(in,nftmp)
+ {
+ nf=(struct infib *)nftmp;
+ nf->metric=LSINFINITY;
+ }
+ FIB_WALK_END;
+
init_list(&oa->cand); /* Empty list of candidates */
oa->trcap=0;
@@ -58,7 +69,7 @@ ospf_rt_spfa(struct ospf_area *oa)
{
struct top_hash_entry *act,*tmp;
node *n;
- struct ospf_lsa_net *netw;
+ u16 met;
n=HEAD(oa->cand);
act=SKIP_BACK(struct top_hash_entry, cn, n);
@@ -81,13 +92,21 @@ ospf_rt_spfa(struct ospf_area *oa)
DBG(" Working on link: %I (type: %u) ",rtl->id,rtl->type);
switch(rtl->type)
{
- case LSART_STUB:
+ case LSART_STUB: /* FIXME add stub network into fib */
+ DBG("\n");
+ ip=ipa_from_u32(rtl->id);
+ nf=fib_get(in,&ip, ipa_mklen(ipa_from_u32(rtl->data)));
+ if(nf->metric>(met=act->dist+rtl->metric))
+ {
+ nf->metric=met;
+ nf->en=act;
+ }
+ break;
case LSART_VLNK:
DBG("Ignoring\n");
continue;
break;
case LSART_NET:
- /* FIXME Oh shit so bad complication */
tmp=ospf_hash_find(oa->gr,rtl->id,rtl->id,LSA_T_NET);
if(tmp==NULL) DBG("Fuck!\n");
else DBG("Found. :-)\n");
@@ -103,9 +122,17 @@ ospf_rt_spfa(struct ospf_area *oa)
add_cand(&oa->cand,tmp,act,act->dist+rtl->metric,oa);
}
break;
- case LSA_T_NET:
- netw=(struct ospf_lsa_net *)act->lsa_body;
- rts=(u32 *)(netw+1);
+ case LSA_T_NET: /* FIXME Add to fib */
+ ln=act->lsa_body;
+ ip=ipa_and(ipa_from_u32(act->lsa.id),ln->netmask);
+ nf=fib_get(in,&ip, ipa_mklen(ln->netmask));
+ if(nf->metric>act->dist)
+ {
+ nf->metric=act->dist;
+ nf->en=act;
+ }
+
+ rts=(u32 *)(ln+1);
for(i=0;i<(act->lsa.length-sizeof(struct ospf_lsa_header)-
sizeof(struct ospf_lsa_net))/sizeof(u32);i++)
{
@@ -117,17 +144,23 @@ ospf_rt_spfa(struct ospf_area *oa)
}
break;
}
- /* FIXME Now modify rt for this entry */
- if((act->lsa.type==LSA_T_NET)&&(act->nhi!=NULL))
+ }
+ /* Now sync our fib with nest's */
+ DBG("\nNow syncing my rt table with nest's\n\n");
+ FIB_ITERATE_INIT(&fit,in);
+again:
+ FIB_ITERATE_START(in,&fit,nftmp)
+ {
+ nf=(struct infib *)nftmp;
+ if(nf->metric==LSINFINITY)
{
net *ne;
rta a0;
- rte *e;
- ip_addr ip;
- struct ospf_lsa_net *ln=act->lsa_body;
-
+ struct top_hash_entry *en=nf->en;
+ ln=en->lsa_body;
+
bzero(&a0, sizeof(a0));
-
+
a0.proto=p;
a0.source=RTS_OSPF;
a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
@@ -135,108 +168,58 @@ ospf_rt_spfa(struct ospf_area *oa)
a0.dest=RTD_ROUTER;
a0.flags=0;
a0.aflags=0;
- a0.iface=act->nhi;
- a0.gw=act->nh;
- a0.from=act->nh; /* FIXME Just a test */
- ip=ipa_and(ipa_from_u32(act->lsa.id),ln->netmask);
- ne=net_get(p->table, ip, ipa_mklen(ln->netmask));
- e=rte_get_temp(&a0);
- e->u.ospf.metric1=act->dist;
- e->u.ospf.metric2=0;
- e->u.ospf.tag=0; /* FIXME Some config? */
- e->pflags = 0;
- e->net=ne;
- DBG("Modifying rt entry %I mask %I\n (IP: %I, GW: %I, Iface: %s)\n",
- act->lsa.id,ln->netmask,ip,act->nh,act->nhi->name);
- rte_update(p->table, ne, p, e);
+ a0.iface=en->nhi;
+ a0.gw=en->nh;
+ a0.from=en->nh; /* FIXME Just a test */
+ ne=net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
+ DBG("Deleting rt entry %I\n (IP: %I, GW: %I, Iface: %s)\n",
+ nf->fn.prefix,ip,en->nh,en->nhi->name);
+ rte_update(p->table, ne, p, NULL);
+
+ /* Now delete my fib */
+ FIB_ITERATE_PUT(&fit, nftmp);
+ fib_delete(in, nftmp);
+ goto again;
}
else
{
- if(act->lsa.type==LSA_T_NET)
+ /* Update routing table */
+ if(nf->en->nhi!=NULL)
{
- struct ospf_lsa_net *ln=act->lsa_body;
- DBG("NOT modifying rt entry %I mask %I\n",act->lsa.id,ln->netmask);
+ net *ne;
+ rta a0;
+ rte *e;
+ struct top_hash_entry *en=nf->en;
+ ln=en->lsa_body;
+
+ bzero(&a0, sizeof(a0));
+
+ a0.proto=p;
+ a0.source=RTS_OSPF;
+ a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
+ a0.cast=RTC_UNICAST;
+ a0.dest=RTD_ROUTER;
+ a0.flags=0;
+ a0.aflags=0;
+ a0.iface=en->nhi;
+ a0.gw=en->nh;
+ a0.from=en->nh; /* FIXME Just a test */
+ ne=net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
+ e=rte_get_temp(&a0);
+ e->u.ospf.metric1=nf->metric;
+ e->u.ospf.metric2=0;
+ e->u.ospf.tag=0; /* FIXME Some config? */
+ e->pflags = 0;
+ e->net=ne;
+ DBG("Modifying rt entry %I\n (IP: %I, GW: %I, Iface: %s)\n",
+ nf->fn.prefix,ip,en->nh,en->nhi->name);
+ rte_update(p->table, ne, p, e);
}
}
- }
-
- DBG("Now calculating routes for stub networks.\n");
-
- /* Now calculate routes to stub networks */
- fib_init(&fib,p->pool,sizeof(struct stub_fib),16,init_stub_fib);
- /*FIXME 16? */
-
- WALK_SLIST_DELSAFE(SNODE en, SNODE nx, oa->lsal)
- {
- if((en->lsa.type==LSA_T_RT)||(en->lsa.type==LSA_T_NET))
- {
- if(en->dist==LSINFINITY)
- {
- /* FIXME I cannot remove node If I'm not FULL states */
- //s_rem_node(SNODE en);
- /* FIXME Remove from routing table! */
- //mb_free(en->lsa_body);
- //ospf_hash_delete(oa->gr, en);
- }
- if(en->lsa.type==LSA_T_RT)
- {
- ip_addr ip;
-
- DBG("Working on LSA: rt: %I, id: %I, type: %u\n",en->lsa.rt,en->lsa.id,en->lsa.type);
- rt=(struct ospf_lsa_rt *)en->lsa_body;
- if((rt->VEB)&(1>>LSA_RT_V)) oa->trcap=1;
- rr=(struct ospf_lsa_rt_link *)(rt+1);
- for(i=0;i<rt->links;i++)
- {
- rtl=rr+i;
- if(rtl->type==LSART_STUB)
- {
- DBG(" Working on stub network: %I\n",rtl->id);
- ip=ipa_from_u32(rtl->id);
- /* Check destination and so on (pg 166) */
- sf=fib_get(&fib,&ip,
- ipa_mklen(ipa_from_u32(rtl->data)));
- if(sf->metric>(en->dist+rtl->metric))
- {
- sf->metric=en->dist+rtl->metric;
- calc_next_hop_fib(en,sf,oa);
- if(sf->nhi!=NULL)
- {
- net *ne;
- rta a0;
- rte *e;
-
- bzero(&a0, sizeof(a0));
-
- a0.proto=p;
- a0.source=RTS_OSPF;
- a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
- a0.cast=RTC_UNICAST;
- a0.dest=RTD_ROUTER;
- a0.flags=0;
- a0.aflags=0;
- a0.iface=sf->nhi;
- a0.gw=sf->nh;
- a0.from=sf->nh; /* FIXME Just a test */
- ip=ipa_from_u32(rtl->id);
- ne=net_get(p->table, ip, ipa_mklen(ipa_from_u32(rtl->data)));
- e=rte_get_temp(&a0);
- e->u.ospf.metric1=sf->metric;
- e->u.ospf.metric2=0;
- e->u.ospf.tag=0; /* FIXME Some config? */
- e->pflags = 0;
- e->net=ne;
- DBG("Modifying stub rt entry %I mask %I\n (GW: %I, Iface: %s)\n",
- ip,rtl->data,sf->nh,sf->nhi->name);
- rte_update(p->table, ne, p, e);
- }
- }
- }
- }
- }
- }
}
+ FIB_ITERATE_END(nftmp);
+
}
void
@@ -316,32 +299,6 @@ calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
neighbor *nn;
DBG(" Next hop calculating for id: %I rt: %I type: %u\n",en->lsa.id,en->lsa.rt,en->lsa.type);
if(par->lsa.type!=LSA_T_RT) return;
- if((neigh=find_neigh_noifa(po,en->lsa.rt))==NULL) return;
- nn=neigh_find(p,&neigh->ip,0);
- DBG(" Next hop calculated: %I\n", nn->addr);
- en->nh=nn->addr;
- en->nhi=nn->iface;
- return;
- }
- en->nh=par->nh;
- en->nhi=par->nhi;
- DBG(" Next hop calculated: %I\n", en->nh);
-}
-
-void
-calc_next_hop_fib(struct top_hash_entry *par, struct stub_fib *en,
- struct ospf_area *oa)
-{
- struct ospf_neighbor *neigh;
- struct proto *p=&oa->po->proto;
- struct proto_ospf *po=oa->po;
- DBG(" Next hop called\n");
- if(par==oa->rt) return;
- if(par->nhi==NULL)
- {
- neighbor *nn;
- DBG(" Next hop calculating for Fib\n");
- if(par->lsa.type!=LSA_T_RT) return;
if((neigh=find_neigh_noifa(po,par->lsa.rt))==NULL) return;
nn=neigh_find(p,&neigh->ip,0);
DBG(" Next hop calculated: %I\n", nn->addr);
@@ -353,3 +310,4 @@ calc_next_hop_fib(struct top_hash_entry *par, struct stub_fib *en,
en->nhi=par->nhi;
DBG(" Next hop calculated: %I\n", en->nh);
}
+
diff --git a/proto/ospf/rt.h b/proto/ospf/rt.h
index 7fe482f..da2f038 100644
--- a/proto/ospf/rt.h
+++ b/proto/ospf/rt.h
@@ -10,12 +10,11 @@
#ifndef _BIRD_OSPF_RT_H_
#define _BIRD_OSPF_RT_H_
-struct stub_fib {
+struct infib {
struct fib_node fn;
u16 metric;
u16 pad;
- ip_addr nh;
- struct iface *nhi;
+ struct top_hash_entry *en;
};
void ospf_rt_spfa(struct ospf_area *oa);
@@ -23,7 +22,6 @@ void add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
u16 dist, struct ospf_area *oa);
void calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
struct ospf_area *oa);
-void calc_next_hop_fib(struct top_hash_entry *par, struct stub_fib *en,
- struct ospf_area *oa);
+void init_infib(struct fib_node *fn);
#endif /* _BIRD_OSPF_RT_H_ */
diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 22f463c..4a41e32 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -118,7 +118,7 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 *length, struct proto_ospf *p)
(neigh->state==NEIGHBOR_FULL)) k=1;
if(neigh->state==NEIGHBOR_FULL) j=1;
}
- if(((ifa->state=OSPF_IS_DR) && (j==1)) || (k==1))
+ if(((ifa->state==OSPF_IS_DR) && (j==1)) || (k==1))
{
ln->type=LSART_NET;
ln->id=ipa_to_u32(ifa->drip);
@@ -205,6 +205,8 @@ addifa_rtlsa(struct ospf_iface *ifa)
oa->age_timer->hook=age_timer_hook;
oa->age_timer->recurrent=AGINGDELTA;
tm_start(oa->age_timer,AGINGDELTA);
+ fib_init(&oa->infib,po->proto.pool,sizeof(struct infib),16,init_infib);
+ /* FIXME 16?? (Oh, sweet 16.... :-) */
po->areano++;
DBG("%s: New OSPF area \"%d\" added.\n", po->proto.name, ifa->an);
}
@@ -252,8 +254,13 @@ originate_net_lsa_body(struct ospf_iface *ifa, u16 *length,
u16 i=1;
struct ospf_neighbor *n;
u32 *body;
+ struct ospf_lsa_net *net;
- body=mb_alloc(po->proto.pool,sizeof(u32)*ifa->fadj);
+ net=mb_alloc(po->proto.pool,sizeof(u32)*(ifa->fadj+1)+
+ sizeof(struct ospf_lsa_net));
+ net->netmask=ipa_mkmask(ifa->iface->addr->pxlen);
+
+ body=(u32 *)(net+1);
i=1;
*body=po->proto.cf->global->router_id;
WALK_LIST(n,ifa->neigh_list)
@@ -264,8 +271,9 @@ originate_net_lsa_body(struct ospf_iface *ifa, u16 *length,
i++;
}
}
- *length=i*sizeof(u32)+sizeof(struct ospf_lsa_header);
- return body;
+ *length=i*sizeof(u32)+sizeof(struct ospf_lsa_header)+
+ sizeof(struct ospf_lsa_net);
+ return net;
}
void
@@ -277,6 +285,7 @@ originate_net_lsa(struct ospf_iface *ifa, struct proto_ospf *po)
void *body;
DBG("%s: Originating Net lsa for iface \"%s\".\n", po->proto.name, ifa->iface->name);
+ DBG("%s: State is:\"%u\" Fadj=%u.\n", po->proto.name, ifa->state,ifa->fadj);
if(ifa->state!=OSPF_IS_DR) return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 07:51:55 +0100