void
ospf6_abr_examin_brouter (u_int32_t router_id)
{
struct ospf6_lsa *lsa;
struct ospf6_area *oa;
listnode node;
u_int16_t type;
type = htons (OSPF6_LSTYPE_INTER_ROUTER);
for (node = listhead (ospf6->area_list); node; nextnode (node))
{
oa = OSPF6_AREA (getdata (node));
for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
ospf6_abr_examin_summary (lsa, oa);
}
type = htons (OSPF6_LSTYPE_INTER_PREFIX);
for (node = listhead (ospf6->area_list); node; nextnode (node))
{
oa = OSPF6_AREA (getdata (node));
for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
ospf6_abr_examin_summary (lsa, oa);
}
}
void
ospf6_asbr_lsentry_add (struct ospf6_route *asbr_entry)
{
struct ospf6_lsa *lsa;
u_int16_t type;
u_int32_t router;
if (! CHECK_FLAG (asbr_entry->flag, OSPF6_ROUTE_BEST))
{
char buf[16];
inet_ntop (AF_INET, &ADV_ROUTER_IN_PREFIX (&asbr_entry->prefix),
buf, sizeof (buf));
zlog_info ("ignore non-best path: lsentry %s add", buf);
return;
}
type = htons (OSPF6_LSTYPE_AS_EXTERNAL);
router = ospf6_linkstate_prefix_adv_router (&asbr_entry->prefix);
for (lsa = ospf6_lsdb_type_router_head (type, router, ospf6->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, router, lsa))
{
if (! OSPF6_LSA_IS_MAXAGE (lsa))
ospf6_asbr_lsa_add (lsa);
}
}
static void
ospf6_nexthop_calc (struct ospf6_vertex *w, struct ospf6_vertex *v,
caddr_t lsdesc)
{
int i;
ifindex_t ifindex;
struct ospf6_interface *oi;
u_int16_t type;
u_int32_t adv_router;
struct ospf6_lsa *lsa;
struct ospf6_link_lsa *link_lsa;
char buf[64];
assert (VERTEX_IS_TYPE (ROUTER, w));
ifindex = (VERTEX_IS_TYPE (NETWORK, v) ? v->nexthop[0].ifindex :
/* v is the local router & the interface_id is a local ifindex */
(ifindex_t) ROUTER_LSDESC_GET_IFID (lsdesc));
assert (ifindex >= 0);
oi = ospf6_interface_lookup_by_ifindex (ifindex);
if (oi == NULL)
{
if (IS_OSPF6_DEBUG_SPF (PROCESS))
zlog_debug ("Can't find interface in SPF: ifindex %d", ifindex);
return;
}
type = htons (OSPF6_LSTYPE_LINK);
adv_router = (VERTEX_IS_TYPE (NETWORK, v) ?
NETWORK_LSDESC_GET_NBR_ROUTERID (lsdesc) :
ROUTER_LSDESC_GET_NBR_ROUTERID (lsdesc));
i = 0;
for (lsa = ospf6_lsdb_type_router_head (type, adv_router, oi->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, adv_router, lsa))
{
if (VERTEX_IS_TYPE (ROUTER, v) &&
htonl (ROUTER_LSDESC_GET_NBR_IFID (lsdesc)) != lsa->header->id)
continue;
link_lsa = (struct ospf6_link_lsa *) OSPF6_LSA_HEADER_END (lsa->header);
if (IS_OSPF6_DEBUG_SPF (PROCESS))
{
inet_ntop (AF_INET6, &link_lsa->linklocal_addr, buf, sizeof (buf));
zlog_debug (" nexthop %s from %s", buf, lsa->name);
}
if (i < OSPF6_MULTI_PATH_LIMIT)
{
memcpy (&w->nexthop[i].address, &link_lsa->linklocal_addr,
sizeof (struct in6_addr));
w->nexthop[i].ifindex = ifindex;
i++;
}
}
if (i == 0 && IS_OSPF6_DEBUG_SPF (PROCESS))
zlog_debug ("No nexthop for %s found", w->name);
}
void
ospf6_abr_examin_brouter (u_int32_t router_id)
{
struct ospf6_lsa *lsa;
struct ospf6_area *oa;
struct listnode *node, *nnode;
u_int16_t type;
for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa))
{
type = htons (OSPF6_LSTYPE_INTER_ROUTER);
for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
ospf6_abr_examin_summary (lsa, oa);
type = htons (OSPF6_LSTYPE_INTER_PREFIX);
for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
ospf6_abr_examin_summary (lsa, oa);
}
}
void
ospf6_lsdb_show (struct vty *vty, int level,
u_int16_t *type, u_int32_t *id, u_int32_t *adv_router,
struct ospf6_lsdb *lsdb)
{
struct ospf6_lsa *lsa;
void (*showfunc) (struct vty *, struct ospf6_lsa *) = NULL;
if (level == OSPF6_LSDB_SHOW_LEVEL_NORMAL)
showfunc = ospf6_lsa_show_summary;
else if (level == OSPF6_LSDB_SHOW_LEVEL_DETAIL)
showfunc = ospf6_lsa_show;
else if (level == OSPF6_LSDB_SHOW_LEVEL_INTERNAL)
showfunc = ospf6_lsa_show_internal;
else if (level == OSPF6_LSDB_SHOW_LEVEL_DUMP)
showfunc = ospf6_lsa_show_dump;
if (type && id && adv_router)
{
lsa = ospf6_lsdb_lookup (*type, *id, *adv_router, lsdb);
if (lsa)
{
if (level == OSPF6_LSDB_SHOW_LEVEL_NORMAL)
ospf6_lsa_show (vty, lsa);
else
(*showfunc) (vty, lsa);
}
return;
}
if (level == OSPF6_LSDB_SHOW_LEVEL_NORMAL)
ospf6_lsa_show_summary_header (vty);
if (type && adv_router)
lsa = ospf6_lsdb_type_router_head (*type, *adv_router, lsdb);
else if (type)
lsa = ospf6_lsdb_type_head (*type, lsdb);
else
lsa = ospf6_lsdb_head (lsdb);
while (lsa)
{
if ((! adv_router || lsa->header->adv_router == *adv_router) &&
(! id || lsa->header->id == *id))
(*showfunc) (vty, lsa);
if (type && adv_router)
lsa = ospf6_lsdb_type_router_next (*type, *adv_router, lsa);
else if (type)
lsa = ospf6_lsdb_type_next (*type, lsa);
else
lsa = ospf6_lsdb_next (lsa);
}
}
void
ospf6_asbr_lsentry_remove (struct ospf6_route *asbr_entry)
{
struct ospf6_lsa *lsa;
u_int16_t type;
u_int32_t router;
type = htons (OSPF6_LSTYPE_AS_EXTERNAL);
router = ospf6_linkstate_prefix_adv_router (&asbr_entry->prefix);
for (lsa = ospf6_lsdb_type_router_head (type, router, ospf6->lsdb);
lsa; lsa = ospf6_lsdb_type_router_next (type, router, lsa))
ospf6_asbr_lsa_remove (lsa);
}
/* Decide new Link State ID to originate.
note return value is network byte order */
u_int32_t
ospf6_new_ls_id (u_int16_t type, u_int32_t adv_router,
struct ospf6_lsdb *lsdb)
{
struct ospf6_lsa *lsa;
u_int32_t id = 1;
for (lsa = ospf6_lsdb_type_router_head (type, adv_router, lsdb); lsa;
lsa = ospf6_lsdb_type_router_next (type, adv_router, lsa))
{
if (ntohl (lsa->header->id) < id)
continue;
if (ntohl (lsa->header->id) > id)
{
ospf6_lsa_unlock (lsa);
break;
}
id++;
}
return ((u_int32_t) htonl (id));
}
