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Originating of external LSA.

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This commit is contained in:
Ondrej Filip 2000-05-27 14:17:35 +00:00
parent 2d5b999236
commit e8085abaa7
3 changed files with 84 additions and 2 deletions
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22
proto/ospf/ospf.c
View file

@ -68,6 +68,7 @@ ospf_init(struct proto_config *c)
init_list(&(po->iface_list));
init_list(&(po->area_list));
p->import_control = ospf_import_control;
p->rt_notify = ospf_rt_notify;
return p;
}
@ -120,7 +121,6 @@ ospf_postconfig(struct proto_config *c)
int
ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool *pool)
{
int i;
rte *e=*new;
struct proto_ospf *po=(struct proto_ospf *)p;
@ -129,6 +129,26 @@ ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool
return 0;
}
void
ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old, ea_list *attrs)
{
struct proto_ospf *po=(struct proto_ospf *)p;
debug("%s: Got route %I/%d %s\n", p->name, n->n.prefix,
n->n.pxlen, new ? "up" : "down");
if(new) /* Got some new route */
{
int i;
/* Originate new external LSA */
}
else
{
int i;
/* Flush some old external LSA */
}
}
struct protocol proto_ospf = {
name: "OSPF",
template: "ospf%d",

4
proto/ospf/ospf.h
View file

@ -351,7 +351,9 @@ static void ospf_preconfig(struct protocol *p, struct config *c);
static void ospf_postconfig(struct proto_config *c);
static int ospf_rte_better(struct rte *new, struct rte *old);
static int ospf_rte_same(struct rte *new, struct rte *old);
int ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool *pool);
int ospf_import_control(struct proto *p, rte **new, ea_list **attrs,
struct linpool *pool);
void ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old,ea_list *attrs);
#include "proto/ospf/hello.h"
#include "proto/ospf/packet.h"

60
proto/ospf/topology.c
View file

@ -319,6 +319,66 @@ originate_net_lsa(struct ospf_iface *ifa, struct proto_ospf *po)
flood_lsa(NULL,NULL,&ifa->nlsa->lsa,po,NULL,ifa->oa);
}
void *
originate_ext_lsa_body(net *n, rte *e, struct proto_ospf *po)
{
struct proto *p=&po->proto;
struct ospf_lsa_ext *ext;
struct ospf_lsa_ext_tos *et;
neighbor *nn;
ext=mb_alloc(p->pool,sizeof(struct ospf_lsa_ext)+
sizeof(struct ospf_lsa_ext_tos));
ext->netmask=ipa_mkmask(n->n.pxlen);
et=(struct ospf_lsa_ext_tos *)(ext+1);
if(e->u.ospf.metric2!=0)
{
et->etos=0;
et->metric=e->u.ospf.metric1;
}
else
{
et->etos=1;
et->metric=e->u.ospf.metric2;
}
et->padding=0;
et->tag=e->u.ospf.tag;
if(1) et->fwaddr= ipa_from_u32(0); /* FIXME if e->attrs->iface is not in my AS*/
else et->fwaddr=e->attrs->gw;
return ext;
}
void
originate_ext_lsa(net *n, rte *e, u16 *len, struct proto_ospf *po)
{
struct ospf_lsa_header lsa;
u32 rtid=po->proto.cf->global->router_id;
struct top_hash_entry *en=NULL;
void *body=NULL;
struct ospf_iface *ifa;
debug("%s: Originating Ext lsa for %I/%d.\n", po->proto.name, n->n.prefix,
n->n.pxlen);
lsa.age=0;
lsa.id=ipa_to_u32(n->n.prefix);
lsa.type=LSA_T_EXT;
lsa.rt=rtid;
lsa.sn=LSA_INITSEQNO;
body=originate_ext_lsa_body(n, e, po);
lsa.length=sizeof(struct ospf_lsa_ext)+sizeof(struct ospf_lsa_ext_tos)+
sizeof(struct ospf_lsa_header);
lsasum_calculate(&lsa,body,po);
WALK_LIST(ifa, po->iface_list)
{
en=lsa_install_new(&lsa, body, ifa->oa, &po->proto);
}
if(en==NULL) die("Some bug in Ext lsa generating\n");
flood_lsa(NULL,NULL,&en->lsa,po,NULL,ifa->oa);
}
static void
ospf_top_ht_alloc(struct top_graph *f)
{