Commit 5b1a92e6 authored by Ondřej Filip's avatar Ondřej Filip

Not all I mean serious. Almost everything will change.

Changes: struct ospf_iface draft, various constants added...
parent 2f5d1544
......@@ -15,16 +15,138 @@
#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)
{
struct ospf_config *c = (void *) p->cf;
DBG(" OSPF: Start\n");
p->if_notify=ospf_if_notify;
return PS_UP;
}
......@@ -53,6 +175,7 @@ static void
ospf_preconfig(struct protocol *x, struct config *c)
{
DBG( " OSPF: preconfig\n" );
init_list(&(((struct ospf_config *)c)->iface_list));
}
static void
......
......@@ -9,9 +9,55 @@
#ifndef _BIRD_OSPF_H_
#define _BIRD_OSPF_H_
#define OSPF_PROTO 89
#define AllSPFRouters ipa_from_u32(0xe0000005) /* 224.0.0.5 */
#define AllDRouters ipa_from_u32(0xe0000006) /* 224.0.0.6 */
struct ospf_config {
struct proto_config c;
ip_addr area; /* Area ID */
ip_addr area; /* Area ID !!! This is wrong !!! */
list iface_list;
};
struct ospf_iface {
node n;
list sk_list; /* List of active sockets */
struct iface *iface; /* Nest's iface */
u32 area; /* OSPF Area */
u16 cost; /* Cost of iface */
int rxmtint; /* number of seconds between LSA retransmissions */
int iftransdelay; /* The estimated number of seconds it takes to
transmit a Link State Update Packet over this
interface. LSAs contained in the update */
u8 priority; /* A router priority for DR election */
u16 helloint; /* number of seconds between hello sending */
u32 deadint; /* after "deadint" missing hellos is router dead */
u16 autype;
u8 aukey[8];
u8 options;
ip_addr dr; /* Designated router */
ip_addr bdr; /* Backup DR */
byte mode;
#define OSPF_IM_MULTICAST 0
#define OSPF_IM_PTP 1
#define OSPF_IM_NBMA 2
/* Default values for interface parameters */
#define COST_D 10
#define RXMTINT_D 5
#define IFTRANSDELAY_D 1
#define PRIORITY_D 0
#define HELLOINT_D 10
#define DEADINT_D 4
};
struct ospf_patt {
struct iface_patt i;
u16 cost;
byte mode;
};
#endif /* _BIRD_OSPF_H_ */
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