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Added wait timer for eligible BCAST & NBMA interface.

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This commit is contained in:
Ondrej Filip 1999-04-13 21:46:20 +00:00
parent 55e7732a5a
commit 4c630a6dd7
2 changed files with 89 additions and 13 deletions
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80
proto/ospf/ospf.c
View file

@ -18,6 +18,7 @@
#include "lib/ip.h"
#include "lib/socket.h"
#include "lib/lists.h"
#include "lib/timer.h"
#include "ospf.h"
@ -67,6 +68,7 @@ ospf_open_socket(struct proto *p, struct ospf_iface *ifa)
mcsk->err_hook=ospf_err_hook;
mcsk->iface=(struct iface *)ifa;
mcsk->rbsize=((struct iface *)ifa)->mtu;
mcsk->tbsize=((struct iface *)ifa)->mtu;
if(sk_open(mcsk)!=0)
{
DBG(" OSPF: SK_OPEN: failed\n");
@ -96,11 +98,45 @@ is_good_iface(struct proto *p, struct iface *iface)
int
ospf_iface_clasify(struct iface *ifa)
{
/* FIXME: Latter I'll use config - this is incorrect */
if((ifa->flags & (IF_MULTIACCESS|IF_MULTICAST))==
IF_MULTIACCESS|IF_MULTICAST) return OSPF_IM_BROADCAST;
(IF_MULTIACCESS|IF_MULTICAST))
{
DBG(" OSPF: Clasifying BROADCAST.\n");
return OSPF_IT_BROADCAST;
}
if((ifa->flags & (IF_MULTIACCESS|IF_MULTICAST))==
IF_MULTIACCESS) return OSPF_IM_NBMA;
return OSPF_IM_PTP;
IF_MULTIACCESS)
{
DBG(" OSPF: Clasifying NBMA.\n");
return OSPF_IT_NBMA;
}
DBG(" OSPF: Clasifying P-T-P.\n");
return OSPF_IT_PTP;
}
void
wait_timer_hook(timer *timer)
{
debug(" OSPF: Wait timer expired for interface %s.\n",
((struct iface *)timer->data)->name);
}
void
add_wait_timer(struct ospf_iface *ifa,pool *pool, int wait)
{
DBG(" OSPF: add_wait_timer called.\n");
if((ifa->type!=OSPF_IT_PTP) && (ifa->priority>0))
{
ifa->wait_timer=tm_new(pool);
ifa->wait_timer->hook=wait_timer_hook;
ifa->wait_timer->data=ifa;
ifa->wait_timer->randomize=0;
ifa->wait_timer->recurrent=0;
ifa->wait_timer->expires=0;
tm_start(ifa->wait_timer,(wait!=0 ? wait : WAIT_D));
DBG(" OSPF: Installing wait timer.\n");
}
}
void
@ -125,11 +161,22 @@ ospf_iface_default(struct ospf_iface *ifa)
ifa->type=ospf_iface_clasify((struct iface *)ifa);
}
struct ospf_iface*
find_iface(struct proto_ospf *p, struct iface *what)
{
struct ospf_iface *i;
WALK_LIST (i, p->iface_list)
if (((struct iface *)i)->index == what->index)
return i;
return NULL;
}
void
ospf_if_notify(struct proto *p, unsigned flags, struct iface *new, struct iface *old)
{
struct ospf_iface *ifa;
sock *mcsk;
sock *mcsk, *newsk;
struct ospf_config *c;
c=(struct ospf_config *)(p->cf);
@ -141,17 +188,34 @@ ospf_if_notify(struct proto *p, unsigned flags, struct iface *new, struct iface
if(((flags & IF_CHANGE_UP)==IF_CHANGE_UP) && is_good_iface(p, new))
{
debug(" OSPF: using interface %s.\n", new->name);
/* Latter I'll use config - this is incorrect */
/* FIXME: Latter I'll use config - this is incorrect */
ifa=mb_alloc(p->pool, sizeof(struct ospf_iface));
bcopy(new, ifa, sizeof(struct ospf_iface));
add_tail(&c->iface_list, NODE ifa);
add_tail(&((struct proto_ospf *)p)->iface_list, NODE ifa);
ospf_iface_default(ifa);
add_wait_timer(ifa,p->pool,0);
init_list(&(ifa->sk_list));
if((mcsk=ospf_open_socket(p, ifa))!=NULL)
{
add_tail(&(ifa->sk_list),NODE mcsk);
}
}
if((flags & IF_CHANGE_DOWN)==IF_CHANGE_DOWN)
{
if((ifa=find_iface((struct proto_ospf *)p, old))!=NULL)
{
debug(" OSPF: killing interface %s.\n", old->name);
}
}
if((flags & IF_CHANGE_MTU)==IF_CHANGE_MTU)
{
if((ifa=find_iface((struct proto_ospf *)p, old))!=NULL)
{
debug(" OSPF: changing MTU on interface %s.\n", old->name);
}
}
}
@ -178,12 +242,12 @@ ospf_dump(struct proto *p)
static struct proto *
ospf_init(struct proto_config *c)
{
struct proto *p = proto_new(c, sizeof(struct proto));
struct proto *p = proto_new(c, sizeof(struct proto_ospf));
DBG(" OSPF: Init.\n");
init_list(&((struct ospf_config *)c)->iface_list);
p->neigh_notify = NULL;
p->if_notify = NULL;
init_list(&((struct proto_ospf *)p)->iface_list);
return p;
}

22
proto/ospf/ospf.h
View file

@ -22,7 +22,6 @@ struct ospf_config {
struct proto_config c;
u32 area; /* Area ID !!! This is wrong !!!
* Should respect interface */
list iface_list;
};
struct ospf_iface {
@ -45,17 +44,26 @@ struct ospf_iface {
ip_addr bdrip; /* Backup DR */
u32 bdrid;
int type; /* OSPF view of type */
#define OSPF_IM_BROADCAST 0
#define OSPF_IM_NBMA 1
#define OSPF_IM_PTP 2
#define OSPF_IT_BROADCAST 0
#define OSPF_IT_NBMA 1
#define OSPF_IT_PTP 2
int state; /* Interface state machine */
#define OSPF_IS_WAITING 0 /* Waiting for Wait timer */
#define OSPF_IS_PTP 1 /* PTP operational */
#define OSPF_IS_DROTHER 2 /* I'm on BCAST or NBMA and I'm not DR */
#define OSPF_IS_BACKUP 3 /* I'm BDR */
#define OSPF_IS_DR 4 /* I'm DR */
timer *wait_timer; /* One shot Wait timer - used after DOWN->UP */
/* Default values for interface parameters */
#define COST_D 10
#define RXMTINT_D 5
#define IFTRANSDELAY_D 1
#define PRIORITY_D 0
#define PRIORITY_D 1
#define HELLOINT_D 10
#define DEADINT_D 4
#define WAIT_D 40 /* Value of Wait timer - I didn't found it in RFC */
};
@ -66,5 +74,9 @@ struct ospf_patt {
byte mode;
};
struct proto_ospf {
struct proto proto;
list iface_list; /* Interfaces we really use */
};
#endif /* _BIRD_OSPF_H_ */