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-rw-r--r--proto/ospf/dbdes.c72
-rw-r--r--proto/ospf/hello.c1
-rw-r--r--proto/ospf/iface.c3
-rw-r--r--proto/ospf/neighbor.c5
-rw-r--r--proto/ospf/ospf.h11
-rw-r--r--proto/ospf/packet.c4
-rw-r--r--proto/ospf/topology.c11
-rw-r--r--proto/ospf/topology.h2
8 files changed, 94 insertions, 15 deletions
diff --git a/proto/ospf/dbdes.c b/proto/ospf/dbdes.c
index 85d2a3b..43d60a3 100644
--- a/proto/ospf/dbdes.c
+++ b/proto/ospf/dbdes.c
@@ -1,7 +1,7 @@
/*
* BIRD -- OSPF
*
- * (c) 1999 Ondrej Filip <feela@network.cz>
+ * (c) 1999-2000 Ondrej Filip <feela@network.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
@@ -16,19 +16,20 @@ ospf_dbdes_tx(struct ospf_neighbor *n)
struct ospf_iface *ifa;
u16 length;
struct proto *p;
+ u16 i,j;
+ u8 *aa,*bb;
ifa=n->ifa;
p=(struct proto *)(ifa->proto);
+ pkt=(struct ospf_dbdes_packet *)(ifa->ip_sk->tbuf);
+ op=(struct ospf_packet *)pkt;
switch(n->state)
{
case NEIGHBOR_EXSTART: /* Send empty packets */
- pkt=(struct ospf_dbdes_packet *)(ifa->ip_sk->tbuf);
- op=(struct ospf_packet *)pkt;
-
fill_ospf_pkt_hdr(ifa, pkt, DBDES);
- pkt->iface_mtu= ((struct iface *)ifa)->mtu;
+ pkt->iface_mtu=ifa->iface->mtu;
pkt->options= ifa->options;
pkt->imms=n->myimms;
pkt->ddseq=n->dds;
@@ -37,8 +38,67 @@ ospf_dbdes_tx(struct ospf_neighbor *n)
ospf_pkt_finalize(ifa, op);
sk_send_to(ifa->ip_sk,length, n->ip, OSPF_PROTO);
debug("%s: DB_DES sent for %u.\n", p->name, n->rid);
+ break;
+
+ case NEIGHBOR_EXCHANGE:
+ if(! ((IAMMASTER(n->myimms) && (n->dds==n->ddr+1)) || ((!IAMMASTER(n->myimms)) && (n->dds==n->ddr))))
+ {
+ snode *sn; /* Send next */
+ struct ospf_lsaheader *lsa;
+
+ fill_ospf_pkt_hdr(ifa, pkt, DBDES);
+ pkt->iface_mtu= ifa->iface->mtu;
+ pkt->options= ifa->options;
+ pkt->ddseq=n->dds;
+
+ sn=s_get(&(n->dbsi));
+ j=i=(pkt->iface_mtu-sizeof(struct ospf_dbdes_packet))/sizeof(struct ospf_lsaheader); /* Number of lsaheaders */
+ lsa=(n->ldbdes+sizeof(struct ospf_dbdes_packet));
+
+ for(;i>0;i--)
+ {
+ struct top_hash_entry *en;
+
+ en=(struct top_hash_entry *)sn;
+ lsa->lsage=htons(en->lsage);
+ lsa->options=htons(en->options);
+ lsa->lstype=htons(en->lsa_type);
+ lsa->lsid=htons(en->lsa_id);
+ lsa->advr=htons(en->rtr_id);
+ lsa->lssn=htons(en->lsseqno);
+ lsa->length=htons(en->length);
+ lsa->checksum=htons(en->checksum);
+ if(sn->next==NULL)
+ {
+ break; /* Should set some flag? */
+ }
+ sn=sn->next;
+ }
+ s_put(&(n->dbsi),sn);
+
+ if(sn->next==NULL)
+ {
+ n->myimms=(n->myimms-DBDES_M); /* Unset more bit */
+ }
+
+ pkt->imms=n->myimms;
+
+ length=j*sizeof(struct ospf_lsaheader)+sizeof(struct ospf_dbdes_packet);
+ op->length=htons(length);
+ ospf_pkt_finalize(ifa, op);
+ sk_send_to(ifa->ip_sk,length, n->ip, OSPF_PROTO);
+ }
+
+ aa=ifa->ip_sk->tbuf;
+ bb=n->ldbdes;
+ length=ntohs(op->length);
+
+ for(i=0; i<ifa->iface->mtu; i++)
+ {
+ *(aa+i)=*(bb+i); /* Copy last sent packet again */
+ }
+ sk_send_to(ifa->ip_sk,length, n->ip, OSPF_PROTO);
- /*case NEIGHBOR_EXCHANGE: */
default: /* Ignore it */
break;
}
diff --git a/proto/ospf/hello.c b/proto/ospf/hello.c
index 6186807..e3b8168 100644
--- a/proto/ospf/hello.c
+++ b/proto/ospf/hello.c
@@ -103,6 +103,7 @@ ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
n->options=ps->options;
n->ifa=ifa;
n->adj=0;
+ n->ldbdes=mb_alloc(p->pool, ifa->iface->mtu);
neigh_chstate(n,NEIGHBOR_DOWN);
install_inactim(n);
}
diff --git a/proto/ospf/iface.c b/proto/ospf/iface.c
index cd8b035..e2aaa7a 100644
--- a/proto/ospf/iface.c
+++ b/proto/ospf/iface.c
@@ -233,7 +233,8 @@ ospf_iface_default(struct ospf_iface *ifa)
{
u8 i;
- ifa->area=0; /* FIXME: Read from config */
+ ifa->oa=NULL;
+ ifa->an=0; /* FIXME This should respect config */
ifa->cost=COST_D;
ifa->rxmtint=RXMTINT_D;
ifa->iftransdelay=IFTRANSDELAY_D;
diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index e4277f7..1470b83 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -204,7 +204,10 @@ ospf_neigh_sm(struct ospf_neighbor *n, int event)
if(n->state==NEIGHBOR_EXSTART)
{
neigh_chstate(n,NEIGHBOR_EXCHANGE);
- /* FIXME Go on... */
+ s_init_list(&(n->lsrql));
+ s_init_list(&(n->lsrtl));
+ s_init(&(n->dbsi), &(n->ifa->oa->lsal));
+ ospf_dbdes_tx(n);
}
break;
case INM_EXDONE:
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index c161dea..18db001 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -21,6 +21,7 @@
#include "lib/checksum.h"
#include "lib/ip.h"
#include "lib/lists.h"
+#include "lib/slists.h"
#include "lib/socket.h"
#include "lib/timer.h"
#include "lib/resource.h"
@@ -60,10 +61,11 @@ struct ospf_iface {
node n;
struct proto_ospf *proto;
struct iface *iface; /* Nest's iface */
+ struct ospf_area *oa;
+ u32 an; /* Area number */
sock *hello_sk; /* Hello socket */
sock *ip_sk; /* IP socket (for DD ...) */
list neigh_list; /* List of neigbours */
- u32 area; /* OSPF Area */
u16 cost; /* Cost of iface */
u16 rxmtint; /* number of seconds between LSA retransmissions */
u16 iftransdelay; /* The estimated number of seconds it takes to
@@ -183,6 +185,12 @@ struct ospf_neighbor
u32 dr; /* Neigbour's idea of DR */
u32 bdr; /* Neigbour's idea of BDR */
u8 adj; /* built adjacency? */
+ siterator dbsi; /* Database summary list iterator */
+ slist lsrql; /* Link state request */ /* FIXME add top_gr hashing? */
+ siterator lsrqi;
+ slist lsrtl; /* Link state retransmission list */
+ siterator lsrti;
+ void *ldbdes; /* Last database description packet */
};
/* Definitions for interface state machine */
@@ -213,6 +221,7 @@ struct ospf_area {
struct ospf_area *next;
u32 areaid;
struct top_graph *gr; /* LSA graph */
+ slist lsal; /* List of all LSA's */
struct top_hash_entry *rt; /* My own router LSA */
slab *rtlinks;
};
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index 1e9706a..b0ab477 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -23,7 +23,7 @@ fill_ospf_pkt_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
pkt->type=h_type;
pkt->routerid=htonl(p->cf->global->router_id);
- pkt->areaid=htonl(ifa->area);
+ pkt->areaid=htonl(ifa->an);
pkt->autype=htons(ifa->autype);
pkt->checksum=0;
}
@@ -101,7 +101,7 @@ ospf_rx_hook(sock *sk, int size)
/* FIXME: Do authetification */
- if(ps->areaid!=ifa->area)
+ if(ps->areaid!=ifa->an)
{
log("%s: Bad OSPF packet received: other area %ld", p->name, ps->areaid);
log("%s: Discarding",p->name);
diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 1f86014..ad88f01 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -38,9 +38,11 @@ addifa_rtlsa(struct ospf_iface *ifa)
while(oa!=NULL)
{
- if(oa->areaid==ifa->area) break;
+ if(oa->areaid==ifa->an) break;
oa=oa->next;
}
+
+ ifa->oa=oa;
if(oa==NULL) /* New area */
{
@@ -48,12 +50,13 @@ addifa_rtlsa(struct ospf_iface *ifa)
po->firstarea=mb_alloc(po->proto.pool, sizeof(struct ospf_area));
po->firstarea->next=oa;
oa=po->firstarea;
- oa->areaid=ifa->area;
+ oa->areaid=ifa->an;
oa->gr=ospf_top_new(po);
+ s_init_list(&(oa->lsal));
oa->rtlinks=sl_new(po->proto.pool,
sizeof(struct top_graph_rtlsa_link));
oa->rt=ospf_hash_get(oa->gr, rtid, rtid, LSA_T_RT);
- DBG("XXXXXX %x XXXXXXX\n", oa->rt);
+ s_add_head(&(oa->lsal), (snode *)oa->rt);
rt=mb_alloc(po->proto.pool, sizeof(struct top_graph_rtlsa));
oa->rt->vertex=(void *)rt;
oa->rt->lsage=0;
@@ -61,7 +64,7 @@ addifa_rtlsa(struct ospf_iface *ifa)
rt->Vbit=0;
rt->Ebit= (po->areano++ ? 0 : 1); /* If it's 1st area set 0 */
rt->Bbit=0; /* FIXME Could read config */
- DBG("%s: New OSPF area \"%d\" added.\n", po->proto.name, ifa->area);
+ DBG("%s: New OSPF area \"%d\" added.\n", po->proto.name, ifa->an);
if(po->areano==2) /* We are attached to more than 2 areas! */
{
diff --git a/proto/ospf/topology.h b/proto/ospf/topology.h
index e2021b0..6a1aad5 100644
--- a/proto/ospf/topology.h
+++ b/proto/ospf/topology.h
@@ -10,6 +10,7 @@
#define _BIRD_OSPF_TOPOLOGY_H_
struct top_hash_entry { /* Index for fast mapping (type,rtrid,LSid)->vertex */
+ snode n;
struct top_hash_entry *next; /* Next in hash chain */
struct top_vertex *vertex;
u32 lsa_id, rtr_id;
@@ -25,6 +26,7 @@ struct top_hash_entry { /* Index for fast mapping (type,rtrid,LSid)->vertex */
#define LSA_CHECKAGE 300 /* 5 minutes */
#define LSA_MAXAGEDIFF 900 /* 15 minutes */
u32 lsseqno;
+ u16 length, checksum;
#define LSA_INITSEQNO 0x80000001
#define LSA_MAXSEQNO 0x7fffffff
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 22:51:25 +0100