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authorOndrej Filip <feela@network.cz>2000-05-31 20:21:42 +0200
committerOndrej Filip <feela@network.cz>2000-05-31 20:21:42 +0200
commit3728267827e83bc095956b16256feae9e28adce7 (patch)
treebbad2fefa17e506ace268d1098fa1690167aeea8
parent31ee3d5f214666a4b2da328dc894a5a9089acc87 (diff)
downloadbird-3728267827e83bc095956b16256feae9e28adce7.tar
bird-3728267827e83bc095956b16256feae9e28adce7.zip
And finally, Premature aging works. :-)
-rw-r--r--proto/ospf/lsack.c2
-rw-r--r--proto/ospf/lsalib.c9
-rw-r--r--proto/ospf/lsupd.c15
3 files changed, 18 insertions, 8 deletions
diff --git a/proto/ospf/lsack.c b/proto/ospf/lsack.c
index 8939728..8b6b280 100644
--- a/proto/ospf/lsack.c
+++ b/proto/ospf/lsack.c
@@ -191,6 +191,8 @@ ospf_lsack_rx(struct ospf_lsack_packet *ps, struct proto *p,
if(lsa_comp(&lsa,&en->lsa)!=CMP_SAME)
{
+ if((lsa.sn==LSA_MAXSEQNO)&&(lsa.age==LSA_MAXAGE)) continue;
+
debug("%s: Strange LS acknoledgement from %I\n",p->name,n->ip);
debug("%s: Id: %I, Rt: %I, Type: %u\n",p->name,lsa.id,lsa.rt,lsa.type);
debug("%s: I have: Age: %4u, Seqno: 0x%08x\n",p->name,en->lsa.age,
diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
index 62ea0b8..d631712 100644
--- a/proto/ospf/lsalib.c
+++ b/proto/ospf/lsalib.c
@@ -349,8 +349,13 @@ int
lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2)
/* Return codes from point of view of l1 */
{
- if(l1->sn>l2->sn) return CMP_NEWER;
- if(l1->sn<l2->sn) return CMP_OLDER;
+ u32 sn1,sn2;
+
+ sn1=l1->sn-LSA_INITSEQNO+1;
+ sn2=l2->sn-LSA_INITSEQNO+1;
+
+ if(sn1>sn2) return CMP_NEWER;
+ if(sn1<sn2) return CMP_OLDER;
if(l1->checksum=!l2->checksum)
return l1->checksum<l2->checksum ? CMP_OLDER : CMP_NEWER;
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c
index 19a663b..798aa1e 100644
--- a/proto/ospf/lsupd.c
+++ b/proto/ospf/lsupd.c
@@ -44,7 +44,6 @@ flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
if(nn->state<NEIGHBOR_EXCHANGE) continue;
if(nn->state<NEIGHBOR_FULL)
{
-
if((en=ospf_hash_find_header(nn->lsrqh,hh))!=NULL)
{
switch(lsa_comp(hh,&en->lsa))
@@ -93,9 +92,12 @@ flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
s_rem_node(SNODE en);
ospf_hash_delete(nn->lsrth, en);
}
+ ret=1;
}
}
+
if(ret==0) continue;
+
if(ifa==iff)
{
if((n->rid==iff->drid)||n->rid==iff->bdrid) continue;
@@ -307,8 +309,8 @@ ospf_lsupd_rx(struct ospf_lsupd_packet *ps, struct proto *p,
continue;
}
ntohlsah(lsa,&lsatmp);
- DBG("Processing update Type: %u ID: %I RT: %I\n",lsatmp.type,
- lsatmp.id, lsatmp.rt);
+ DBG("Processing update Type: %u ID: %I RT: %I, Sn: 0x%08x\n",lsatmp.type,
+ lsatmp.id, lsatmp.rt, lsatmp.sn);
lsadb=ospf_hash_find_header(oa->gr, &lsatmp);
/* pg 143 (4) */
@@ -358,14 +360,15 @@ ospf_lsupd_rx(struct ospf_lsupd_packet *ps, struct proto *p,
{
struct top_hash_entry *en;
+ if((lsatmp.age==LSA_MAXAGE)&&(lsatmp.sn==LSA_MAXSEQNO)) continue;
+
lsatmp.age=LSA_MAXAGE;
lsatmp.sn=LSA_MAXSEQNO;
+ lsa->age=htons(LSA_MAXAGE);
+ lsa->sn=htonl(LSA_MAXSEQNO);
debug("%s: Premature aging self originated lsa.\n",p->name);
debug("%s: Type: %d, Id: %I, Rt: %I\n", p->name, lsatmp.type,
lsatmp.id, lsatmp.rt);
- body=mb_alloc(p->pool,lsatmp.length-sizeof(struct ospf_lsa_header));
- ntohlsab(lsa+1,body,lsatmp.type,
- lsatmp.length-sizeof(struct ospf_lsa_header));
lsasum_check(lsa,(lsa+1),po);
lsatmp.checksum=ntohs(lsa->checksum);
flood_lsa(NULL,lsa,&lsatmp,po,NULL,oa,0);