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Route attributes for OSPF.

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This commit is contained in:
Martin Mares
2000-05-30 21:25:32 +00:00
parent 2cec475b8f
commit 5919c66e8f
6 changed files with 94 additions and 28 deletions
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73
proto/ospf/ospf.c
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@@ -63,12 +63,13 @@ ospf_init(struct proto_config *c)
struct proto_ospf *po=(struct proto_ospf *)p;
debug("OSPF: Init requested.\n");
p->neigh_notify = NULL;
p->import_control = ospf_import_control;
p->make_tmp_attrs = ospf_make_tmp_attrs;
p->store_tmp_attrs = ospf_store_tmp_attrs;
p->rt_notify = ospf_rt_notify;
p->if_notify = ospf_if_notify;
p->rte_better=ospf_rte_better;
p->rte_same=ospf_rte_same;
p->rte_better = ospf_rte_better;
p->rte_same = ospf_rte_same;
return p;
}
@@ -104,12 +105,34 @@ ospf_rte_better(struct rte *new, struct rte *old)
static int
ospf_rte_same(struct rte *new, struct rte *old)
{
struct proto *p = new->attrs->proto;
/* new->attrs == old->attrs always */
return
new->u.ospf.metric1 == old->u.ospf.metric1 &&
new->u.ospf.metric2 == old->u.ospf.metric2 &&
new->u.ospf.tag == old->u.ospf.tag;
}
if(new->attrs->source!=old->attrs->source) return 0;
if(new->u.ospf.metric1!=old->u.ospf.metric1) return 0;
if(new->u.ospf.metric2!=old->u.ospf.metric2) return 0;
return 1;
static ea_list *
ospf_build_attrs(ea_list *next, struct linpool *pool, u32 m1, u32 m2, u32 tag)
{
struct ea_list *l = lp_alloc(pool, sizeof(struct ea_list) + 3*sizeof(eattr));
l->next = next;
l->flags = EALF_SORTED;
l->count = 3;
l->attrs[0].id = EA_OSPF_METRIC1;
l->attrs[0].flags = 0;
l->attrs[0].type = EAF_TYPE_INT | EAF_TEMP;
l->attrs[0].u.data = m1;
l->attrs[1].id = EA_OSPF_METRIC2;
l->attrs[1].flags = 0;
l->attrs[1].type = EAF_TYPE_INT | EAF_TEMP;
l->attrs[1].u.data = m2;
l->attrs[2].id = EA_OSPF_TAG;
l->attrs[2].flags = 0;
l->attrs[2].type = EAF_TYPE_INT | EAF_TEMP;
l->attrs[2].u.data = tag;
return l;
}
int
@@ -118,9 +141,23 @@ ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool
rte *e=*new;
struct proto_ospf *po=(struct proto_ospf *)p;
if(p==e->attrs->proto) return -1;
if(p==e->attrs->proto) return -1; /* Reject our own routes */
*attrs = ospf_build_attrs(*attrs, pool, 0, 0, 0); /* FIXME: Use better defaults? */
return 0; /* Leave decision to the filters */
}
return 0;
struct ea_list *
ospf_make_tmp_attrs(struct rte *rt, struct linpool *pool)
{
return ospf_build_attrs(NULL, pool, rt->u.ospf.metric1, rt->u.ospf.metric2, rt->u.ospf.tag);
}
void
ospf_store_tmp_attrs(struct rte *rt, struct ea_list *attrs)
{
rt->u.ospf.metric1 = ea_get_int(attrs, EA_OSPF_METRIC1, 0);
rt->u.ospf.metric2 = ea_get_int(attrs, EA_OSPF_METRIC2, 0);
rt->u.ospf.tag = ea_get_int(attrs, EA_OSPF_TAG, 0);
}
static int
@@ -152,7 +189,7 @@ ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old, ea_list *attrs)
if(new) /* Got some new route */
{
originate_ext_lsa(n, new, po);
originate_ext_lsa(n, new, po, attrs);
}
else
{
@@ -210,13 +247,27 @@ ospf_get_route_info(rte *rte, byte *buf, ea_list *attrs)
(rte->u.ospf.metric2==0) ? rte->u.ospf.metric1 : rte->u.ospf.metric2);
}
static int
ospf_get_attr(eattr *a, byte *buf)
{
switch (a->id)
{
case EA_OSPF_METRIC1: bsprintf(buf, "metric1"); return GA_NAME;
case EA_OSPF_METRIC2: bsprintf(buf, "metric2"); return GA_NAME;
case EA_OSPF_TAG: bsprintf(buf, "tag: %08x", a->u.data); return GA_FULL;
default: return GA_UNKNOWN;
}
}
struct protocol proto_ospf = {
name: "OSPF",
template: "ospf%d",
attr_class: EAP_OSPF,
init: ospf_init,
dump: ospf_dump,
start: ospf_start,
shutdown: ospf_shutdown,
get_route_info: ospf_get_route_info,
get_attr: ospf_get_attr,
get_status: ospf_get_status
};