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A structure for receiving DD seq packets added.

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This commit is contained in:
Ondrej Filip 1999-08-24 18:32:26 +00:00
parent e3121112ab
commit 1af664158d
2 changed files with 70 additions and 29 deletions
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85
proto/ospf/ospf.c
View file

@ -366,10 +366,7 @@ ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
die("%s: Iface %s in down state?", p->name, ifa->iface->name);
break;
case OSPF_IS_WAITING:
DBG(p->name);
DBG(": Neighbor? on iface ");
DBG(ifa->iface->name);
DBG("\n");
DBG("%s: Neighbor? on iface %s\n",p->name, ifa->iface->name);
break;
case OSPF_IS_DROTHER:
if(((n->rid==ifa->drid) || (n->rid==ifa->bdrid))
@ -400,10 +397,7 @@ ospf_rx_hook(sock *sk, int size)
ifa=(struct ospf_iface *)(sk->data);
p=(struct proto *)(ifa->proto);
DBG(p->name);
DBG(": RX_Hook called on interface ");
DBG(sk->iface->name);
DBG(".\n");
DBG("%s: RX_Hook called on interface %s.\n",p->name, sk->iface->name);
ps = (struct ospf_packet *) ipv4_skip_header(sk->rbuf, &size);
if(ps==NULL)
@ -465,28 +459,30 @@ ospf_rx_hook(sock *sk, int size)
return(1);
}
/* Dump packet */
pu8=(u8 *)(sk->rbuf+5*4);
for(i=0;i<ntohs(ps->length);i+=4)
debug("%s: received %u,%u,%u,%u\n",p->name, pu8[i+0], pu8[i+1], pu8[i+2],
DBG("%s: received %u,%u,%u,%u\n",p->name, pu8[i+0], pu8[i+1], pu8[i+2],
pu8[i+3]);
debug("%s: received size: %u\n",p->name,size);
switch(ps->type)
{
case HELLO:
DBG(p->name);
DBG(": Hello received.\n");
DBG("%s: Hello received.\n", p->name);
ospf_hello_rx((struct ospf_hello_packet *)ps, p, ifa, size);
break;
case DBDES:
DBG("%s: Database description received.\n", p->name);
break;
case LSREQ:
DBG("%s: Link state request received.\n", p->name);
break;
case LSUPD:
DBG("%s: Link state update received.\n", p->name);
break;
case LSACK:
DBG("%s: Link state ack received.\n", p->name);
break;
default:
log("%s: Bad packet received: wrong type %u", p->name, ps->type);
@ -524,11 +520,14 @@ ospf_err_hook(sock *sk, int err)
DBG("%s: Err_Hook called on interface %s\n", p->name,sk->iface->name);
}
/* This will change ! */
sock *
ospf_open_socket(struct proto *p, struct ospf_iface *ifa)
ospf_open_mc_socket(struct ospf_iface *ifa)
{
sock *mcsk;
struct proto *p;
p=(struct proto *)(ifa->proto);
/* FIXME: No NBMA networks now */
@ -550,17 +549,45 @@ ospf_open_socket(struct proto *p, struct ospf_iface *ifa)
mcsk->data=(void *)ifa;
if(sk_open(mcsk)!=0)
{
DBG(p->name);
DBG(": SK_OPEN: failed\n");
DBG("%s: SK_OPEN: mc open failed.\n",p->name);
return(NULL);
}
DBG(p->name);
DBG(": SK_OPEN: open\n");
DBG("%s: SK_OPEN: mc opened.\n",p->name);
return(mcsk);
}
else return(NULL);
}
sock *
ospf_open_ip_socket(struct ospf_iface *ifa)
{
sock *ipsk;
struct proto *p;
p=(struct proto *)(ifa->proto);
ipsk=sk_new(p->pool);
ipsk->type=SK_IP;
ipsk->dport=OSPF_PROTO;
ipsk->saddr=ifa->iface->addr->ip;
ipsk->tos=IP_PREC_INTERNET_CONTROL;
ipsk->ttl=1;
ipsk->rx_hook=ospf_rx_hook;
ipsk->tx_hook=ospf_tx_hook;
ipsk->err_hook=ospf_err_hook;
ipsk->iface=ifa->iface;
ipsk->rbsize=ifa->iface->mtu;
ipsk->tbsize=ifa->iface->mtu;
ipsk->data=(void *)ifa;
if(sk_open(ipsk)!=0)
{
DBG("%s: SK_OPEN: ip open failed.\n",p->name);
return(NULL);
}
DBG("%s: SK_OPEN: ip opened.\n",p->name);
return(ipsk);
}
/*
* This will later decide, wheter use iface for OSPF or not
* depending on config
@ -775,19 +802,24 @@ ospf_if_notify(struct proto *p, unsigned flags, struct iface *iface)
ospf_iface_default(ifa);
if(ifa->type!=OSPF_IT_NBMA)
{
if((mcsk=ospf_open_socket(p, ifa))!=NULL)
if((ifa->hello_sk=ospf_open_mc_socket(ifa))==NULL)
{
ifa->hello_sk=mcsk;
}
else
{
log("%s: Huh? could not open socket on interface %s?", p->name,
log("%s: Huh? could not open mc socket on interface %s?", p->name,
iface->name);
mb_free(ifa);
log("%s: Ignoring this interface\n", p->name);
return;
}
/* FIXME: In fail case??? */
if((ifa->ip_sk=ospf_open_ip_socket(ifa))==NULL)
{
log("%s: Huh? could not open ip socket on interface %s?", p->name,
iface->name);
mb_free(ifa);
log("%s: Ignoring this interface\n", p->name);
return;
}
init_list(&(ifa->neigh_list));
}
/* FIXME: NBMA? */
@ -820,8 +852,7 @@ ospf_if_notify(struct proto *p, unsigned flags, struct iface *iface)
static int
ospf_start(struct proto *p)
{
DBG(p->name);
DBG(": Start\n");
DBG("%s: Start\n",p->name);
p->if_notify=ospf_if_notify;

14
proto/ospf/ospf.h
View file

@ -33,7 +33,8 @@ struct ospf_iface {
node n;
struct proto_ospf *proto;
struct iface *iface; /* Nest's iface */
sock *hello_sk; /* List of active sockets */
sock *hello_sk; /* Hello socket */
sock *ip_sk; /* IP socket (for DD ...) */
list neigh_list; /* List of neigbours */
u32 area; /* OSPF Area */
u16 cost; /* Cost of iface */
@ -71,7 +72,9 @@ struct ospf_iface {
#define PRIORITY_D 1
#define HELLOINT_D 10
#define DEADC_D 4
#define WAIT_DMH 2 /* Value of Wait timer - not found it in RFC - using 2*HELLO */
#define WAIT_DMH 2 /* Value of Wait timer - not found it in RFC
* - using 2*HELLO
*/
};
struct ospf_patt {
@ -108,6 +111,13 @@ struct ospf_hello_packet {
u32 bdr;
};
struct ospf_ddseq_packet {
struct ospf_packet ospf_packet;
u16 iface_mtu;
u16 options;
u32 ddseq_no;
};
struct ospf_neighbor
{
node n;