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ospfd: do not install blackhole routes for ranges with "not-advertise"

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Adding blackhole routes is unnecessary in that case.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2023-03-07 21:13:53 -03:00
parent 4312d66f9f
commit 271588ace0
1 changed files with 22 additions and 19 deletions
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41
ospfd/ospf_abr.c
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@ -76,7 +76,8 @@ static void ospf_area_range_delete(struct ospf_area *area,
{ {
struct ospf_area_range *range = rn->info; struct ospf_area_range *range = rn->info;
if (ospf_area_range_active(range)) if (ospf_area_range_active(range) &&
CHECK_FLAG(range->flags, OSPF_AREA_RANGE_ADVERTISE))
ospf_delete_discard_route(area->ospf, area->ospf->new_table, ospf_delete_discard_route(area->ospf, area->ospf->new_table,
(struct prefix_ipv4 *)&rn->p); (struct prefix_ipv4 *)&rn->p);
@ -1933,25 +1934,27 @@ static void ospf_abr_manage_discard_routes(struct ospf *ospf)
struct listnode *node, *nnode; struct listnode *node, *nnode;
struct route_node *rn; struct route_node *rn;
struct ospf_area *area; struct ospf_area *area;
struct ospf_area_range *range;
for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) {
for (rn = route_top(area->ranges); rn; rn = route_next(rn)) for (rn = route_top(area->ranges); rn; rn = route_next(rn)) {
if ((range = rn->info) != NULL) struct ospf_area_range *range;
if (CHECK_FLAG(range->flags,
OSPF_AREA_RANGE_ADVERTISE)) { range = rn->info;
if (ospf_area_range_active(range)) if (!range)
ospf_add_discard_route( continue;
ospf, ospf->new_table,
area, if (ospf_area_range_active(range)
(struct prefix_ipv4 && CHECK_FLAG(range->flags,
*)&rn->p); OSPF_AREA_RANGE_ADVERTISE))
else ospf_add_discard_route(
ospf_delete_discard_route( ospf, ospf->new_table, area,
ospf, ospf->new_table, (struct prefix_ipv4 *)&rn->p);
(struct prefix_ipv4 else
*)&rn->p); ospf_delete_discard_route(
} ospf, ospf->new_table,
(struct prefix_ipv4 *)&rn->p);
}
}
} }
/* This is the function taking care about ABR NSSA, i.e. NSSA /* This is the function taking care about ABR NSSA, i.e. NSSA