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authorOndrej Filip <feela@network.cz>1999-06-01 18:35:18 +0200
committerOndrej Filip <feela@network.cz>1999-06-01 18:35:18 +0200
commitcd70d93470498c0b68a084be5aeab5dd45a0df60 (patch)
treeec9f4b8f8fac9442e71ee2cd367eff89c252c1b1 /proto
parentbd7f1081f24aa6ca4cdba004478742b730644a91 (diff)
downloadbird-cd70d93470498c0b68a084be5aeab5dd45a0df60.tar
bird-cd70d93470498c0b68a084be5aeab5dd45a0df60.zip
Detecting of new neighbor added. It starts inactivity timer.
Diffstat (limited to 'proto')
-rw-r--r--proto/ospf/ospf.c68
-rw-r--r--proto/ospf/ospf.h8
2 files changed, 63 insertions, 13 deletions
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index 47c87f8..de60f4e 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -24,16 +24,35 @@
#include "ospf.h"
void
+neighbor_timer_hook(timer *timer)
+{
+ struct ospf_neighbor *n;
+ struct ospf_iface *ifa;
+ struct proto *p;
+
+ n=(struct ospf_neighbor *)timer->data;
+ ifa=n->ifa;
+ p=(struct proto *)(ifa->proto);
+ debug("%s: Inactivity timer fired on interface %s for neighbor %d.\n",
+ p->name, ifa->iface->name, n->rid);
+}
+
+void
ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
struct ospf_iface *ifa)
{
char sip[100]; /* FIXME: Should be smaller */
+ u32 nrid;
+ struct ospf_neighbor *neigh,*n;
+ int i;
+
+ nrid=ntohl(((struct ospf_packet *)ps)->routerid);
if(ipa_mklen(ipa_ntoh(ps->netmask))!=ifa->iface->addr->pxlen)
{
ip_ntop(ps->netmask,sip);
log("%s: Bad OSPF packet from %d received: bad netmask %s.",
- p->name, ntohl(((struct ospf_packet *)ps)->routerid), sip);
+ p->name, nrid, sip);
log("%s: Discarding",p->name);
return;
}
@@ -41,7 +60,7 @@ ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
if(ntohs(ps->helloint)!=ifa->helloint)
{
log("%s: Bad OSPF packet from %d received: hello interval mismatch.",
- p->name, ntohl(((struct ospf_packet *)ps)->routerid));
+ p->name, nrid);
log("%s: Discarding",p->name);
return;
}
@@ -49,19 +68,53 @@ ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
if(ntohl(ps->deadint)!=ifa->helloint*ifa->deadc)
{
log("%s: Bad OSPF packet from %d received: dead interval mismatch.",
- p->name, ntohl(((struct ospf_packet *)ps)->routerid));
+ p->name, nrid);
log("%s: Discarding",p->name);
return;
}
+
if(ps->options!=ifa->options)
{
log("%s: Bad OSPF packet from %d received: options mismatch.",
- p->name, ntohl(((struct ospf_packet *)ps)->routerid));
+ p->name, nrid);
log("%s: Discarding",p->name);
return;
}
+ n=NULL;
+ WALK_LIST (neigh, ifa->neigh_list)
+ {
+ if(neigh->rid==nrid)
+ {
+ n=neigh;
+ break;
+ }
+ }
+
+ if(n==NULL)
+ {
+ log("%s: New neighbor found: %d.",p->name,nrid);
+ n=mb_alloc(p->pool, sizeof(struct ospf_neighbor));
+ add_tail(&ifa->neigh_list, NODE n);
+ n->inactim=tm_new(p->pool);
+ n->inactim->data=n;
+ n->inactim->randomize=0;
+ n->inactim->hook=neighbor_timer_hook;
+ n->inactim->recurrent=ifa->deadc*ifa->helloint;
+ n->inactim->expires=0;
+ tm_start(ifa->hello_timer,ifa->deadc*ifa->helloint);
+ DBG("%s: Installing inactivity timer.\n", p->name);
+ n->state=NEIGHBOR_INIT;
+ n->rid=nrid;
+ n->dr=ntohl(ps->dr);
+ n->bdr=ntohl(ps->bdr);
+ n->priority=ps->priority;
+ n->options=ps->options;
+ }
+
+ /* XXXX */
+
switch(ifa->state)
{
case OSPF_IS_DOWN:
@@ -323,8 +376,7 @@ hello_timer_hook(timer *timer)
p->name, ifa->iface->name);
/* Now we should send a hello packet */
/* First a common packet header */
- //if(ifa->type!=OSPF_IT_NBMA)
- if(ifa->hello_sk!=NULL)
+ if(ifa->type!=OSPF_IT_NBMA)
{
/* Now fill ospf_hello header */
pkt=(struct ospf_hello_packet *)(ifa->hello_sk->tbuf);
@@ -359,9 +411,8 @@ hello_timer_hook(timer *timer)
op->checksum=ipsum_calculate(op,sizeof(struct ospf_packet)-8,
&(pkt->netmask),length-sizeof(struct ospf_packet),NULL);
+ /* And finally send it :-) */
sk_send(ifa->hello_sk,length);
-
- /* XXXX */
}
}
@@ -434,7 +485,6 @@ ospf_add_timers(struct ospf_iface *ifa, pool *pool, int wait)
DBG(": Installing wait timer.\n");
}
else ifa->state=OSPF_IS_PTP;
-
}
void
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 19c9eeb..164bed3 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -113,9 +113,9 @@ struct ospf_neighbor
struct ospf_iface *ifa;
int state;
#define NEIGHBOR_DOWN 0
-#define NEIGHBOR_INIT 1
-#define NEIGHBOR_2WAY 2
-#define NEIGHBOR_ATTEMPT 3
+#define NEIGHBOR_ATTEMPT 1
+#define NEIGHBOR_INIT 2
+#define NEIGHBOR_2WAY 3
#define NEIGHBOR_EXSTART 4
#define NEIGHBOR_EXCHANGE 5
#define NEIGHBOR_LOADING 6
@@ -125,7 +125,7 @@ struct ospf_neighbor
u32 dds; /* DD Sequence number being sentg */
u32 ddr; /* last Dat Des packet */
u32 rid; /* Router ID */
- byte pri; /* Priority */
+ byte priority; /* Priority */
byte options; /* Options */
u32 dr; /* Neigbour's idea of DR */
u32 bdr; /* Neigbour's idea of BDR */