summaryrefslogtreecommitdiffstats
path: root/proto/ospf/lsreq.c
diff options
context:
space:
mode:
Diffstat (limited to 'proto/ospf/lsreq.c')
-rw-r--r--proto/ospf/lsreq.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/proto/ospf/lsreq.c b/proto/ospf/lsreq.c
new file mode 100644
index 0000000..a0a8685
--- /dev/null
+++ b/proto/ospf/lsreq.c
@@ -0,0 +1,104 @@
+/*
+ * BIRD -- OSPF
+ *
+ * (c) 2000 Ondrej Filip <feela@network.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#include "ospf.h"
+
+void
+ospf_lsreq_tx(struct ospf_neighbor *n)
+{
+ snode *sn;
+ struct top_hash_entry *en;
+ struct ospf_lsreq_packet *pk;
+ struct ospf_packet *op;
+ struct ospf_lsreq_header *lsh;
+ u16 length;
+ int i,j;
+
+ pk=(struct ospf_lsreq_packet *)n->ifa->ip_sk->tbuf;
+ op=(struct ospf_packet *)n->ifa->ip_sk->tbuf;
+
+ fill_ospf_pkt_hdr(n->ifa, pk, LSREQ);
+
+ s_init(&(n->lsrqi), &(n->lsrql));
+ sn=s_get(&(n->lsrqi));
+ if(sn==NULL) return;
+ /* FIXME above I don't need iterator and slist */
+
+ i=j=(n->ifa->iface->mtu-SIPH-sizeof(struct ospf_lsreq_packet))/
+ sizeof(struct ospf_lsreq_header); /* FIXME IP header! */
+ lsh=(struct ospf_lsreq_header *)(pk+1);
+
+ for(;i>0;i--)
+ {
+ en=(struct top_hash_entry *)sn;
+ lsh->padd1=0; lsh->padd2=0;
+ lsh->type=en->lsa.type;
+ lsh->rt=htonl(en->lsa.rt);
+ lsh->id=htonl(en->lsa.id);
+ lsh++;
+ DBG("Requesting %uth LSA: Type: %u, Id: %u, RT: %u\n",i, en->lsa.type,
+ en->lsa.id, en->lsa.rt);
+ if((sn=sn->next)==NULL) break;
+ }
+
+ length=sizeof(struct ospf_lsreq_packet)+(j-i)*sizeof(struct ospf_lsreq_header);
+ op->length=htons(length);
+ ospf_pkt_finalize(n->ifa, op);
+ sk_send_to(n->ifa->ip_sk,length, n->ip, OSPF_PROTO);
+ DBG("Lsreq send to: %u\n", n->rid);
+}
+
+void
+lsrr_timer_hook(timer *timer)
+{
+ struct ospf_iface *ifa;
+ struct proto *p;
+ struct ospf_neighbor *n;
+
+ n=(struct ospf_neighbor *)timer->data;
+ ifa=n->ifa;
+ p=(struct proto *)(ifa->proto);
+ debug("%s: LSRR timer fired on interface %s for neigh: %u.\n",
+ p->name, ifa->iface->name, n->rid);
+ ospf_lsreq_tx(n);
+}
+
+void
+ospf_lsreq_rx(struct ospf_lsreq_packet *ps, struct proto *p,
+ struct ospf_iface *ifa, u16 size)
+{
+ u32 nrid, myrid;
+ struct ospf_neighbor *n;
+ struct ospf_lsreq_header *lsh;
+ int length;
+ u8 i;
+
+ nrid=ntohl(ps->ospf_packet.routerid);
+
+ myrid=p->cf->global->router_id;
+
+ if((n=find_neigh(ifa, nrid))==NULL)
+ {
+ debug("%s: Received dbdes from unknown neigbor! (%u)\n", p->name,
+ nrid);
+ return ;
+ }
+ if(n->state<NEIGHBOR_EXCHANGE) debug("%s: Ignoring it.\n", p->name);
+
+ length=htons(ps->ospf_packet.length);
+ lsh=(void *)(ps+1);
+ for(i=0;i<(length-sizeof(struct ospf_lsreq_packet))/
+ sizeof(struct ospf_lsreq_header);i++);
+ {
+ DBG("Processing LSA: ID=%u, Type=%u, Router=%u\n", lsh->id, lsh->type,
+ lsh->rt);
+ /* FIXME Go on */
+ }
+
+}
+