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/*
* BIRD -- OSPF
*
* (c) 1999 Ondrej Filip <feela@network.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#define LOCAL_DEBUG
#include <string.h>
#include "nest/bird.h"
#include "nest/iface.h"
#include "nest/protocol.h"
#include "nest/route.h"
#include "conf/conf.h"
#include "lib/ip.h"
#include "lib/socket.h"
#include "lib/lists.h"
#include "ospf.h"
int
ospf_rx_hook(sock *sk, int size)
{
DBG(" RX_Hook_Called.\n");
return(1);
}
void
ospf_tx_hook(sock *sk)
{
DBG(" TX_Hook_Called.\n");
}
void
ospf_err_hook(sock *sk, int err)
{
DBG(" Err_Hook_Called.\n");
}
/* This will change ! */
sock *
ospf_open_socket(struct proto *p, struct ospf_iface *ifa)
{
sock *mcsk;
/* No NBMA networks now */
if(ifa->iface->flags & IF_MULTICAST)
{
mcsk=sk_new(p->pool);
mcsk->type=SK_IP_MC;
mcsk->dport=OSPF_PROTO;
mcsk->saddr=AllSPFRouters;
mcsk->daddr=AllSPFRouters;
mcsk->ttl=1;
mcsk->rx_hook=ospf_rx_hook;
mcsk->tx_hook=ospf_tx_hook;
mcsk->err_hook=ospf_err_hook;
mcsk->iface=ifa->iface;
mcsk->rbsize=ifa->iface->mtu;
if(sk_open(mcsk)!=0)
{
DBG(" OSPF: SK_OPEN: failed\n");
return(NULL);
}
return(mcsk);
}
else return(NULL);
}
/*
* This will later decide, wheter use iface for OSPF or not
* depending on config
*/
int
is_good_iface(struct proto *p, struct iface *iface)
{
return(iface->flags & IF_UP);
}
/* Of course, it's NOT true now */
byte
ospf_iface_clasify(struct iface *ifa)
{
if((ifa->flags & (IF_MULTIACCESS|IF_MULTICAST))==
IF_MULTIACCESS|IF_MULTICAST) return OSPF_IM_MULTICAST;
if((ifa->flags & (IF_MULTIACCESS|IF_MULTICAST))==
IF_MULTIACCESS) return OSPF_IM_NBMA;
return OSPF_IM_PTP;
}
void
ospf_iface_default(struct ospf_iface *ifa)
{
int i;
ifa->area=0;
ifa->cost=COST_D;
ifa->rxmtint=RXMTINT_D;
ifa->iftransdelay=IFTRANSDELAY_D;
ifa->priority=PRIORITY_D;
ifa->helloint=HELLOINT_D;
ifa->deadint=DEADINT_D;
ifa->autype=0;
for(i=0;i<8;i++) ifa->aukey[i]=0;
ifa->options=0;
ifa->dr=ipa_from_u32(0x00000000);
ifa->bdr=ipa_from_u32(0x00000000);
ifa->mode=ospf_iface_clasify(ifa->iface);
}
void
ospf_if_notify(struct proto *p, unsigned flags, struct iface *new, struct iface *old)
{
struct ospf_iface *ospf_iface;
struct ospf_config *c;
c=(struct ospf_config *)(p->cf);
DBG(" OSPF: If notify called\n");
if(((flags & IF_CHANGE_UP)==IF_CHANGE_UP) && is_good_iface(p, new))
{
/* Latter I'll use config - this is incorrect */
ospf_iface=mb_alloc(p->pool, sizeof(struct ospf_iface));
ospf_iface->iface=new;
add_tail(&c->iface_list, NODE ospf_iface);
ospf_iface_default(ospf_iface);
init_list(&(ospf_iface->sk_list));
if(ospf_open_socket(p, ospf_iface)!=NULL)
{
add_tail(&(ospf_iface->sk_list),NODE ospf_iface);
}
}
}
static int
ospf_start(struct proto *p)
{
DBG(" OSPF: Start\n");
p->if_notify=ospf_if_notify;
return PS_UP;
}
static void
ospf_dump(struct proto *p)
{
char areastr[20];
struct ospf_config *c = (void *) p->cf;
DBG(" OSPF: Dump.\n");
debug(" -AreaID: %d\n", c->area );
}
static struct proto *
ospf_init(struct proto_config *c)
{
struct proto *p = proto_new(c, sizeof(struct proto));
DBG(" OSPF: Init.\n");
init_list(&((struct ospf_config *)c)->iface_list);
p->neigh_notify = NULL;
p->if_notify = NULL;
return p;
}
static void
ospf_preconfig(struct protocol *p, struct config *c)
{
DBG( " OSPF: preconfig\n" );
}
static void
ospf_postconfig(struct proto_config *c)
{
DBG( " OSPF: postconfig\n" );
}
struct protocol proto_ospf = {
name: "OSPF",
init: ospf_init,
dump: ospf_dump,
start: ospf_start,
preconfig: ospf_preconfig,
postconfig: ospf_postconfig,
};
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