void
ospf6_abr_enable_area (struct ospf6_area *area)
{
struct ospf6_area *oa;
struct ospf6_route *ro;
struct listnode *node, *nnode;
for (ALL_LIST_ELEMENTS (area->ospf6->area_list, node, nnode, oa))
{
/* update B bit for each area */
OSPF6_ROUTER_LSA_SCHEDULE (oa);
/* install other area's configured address range */
if (oa != area)
{
for (ro = ospf6_route_head (oa->range_table); ro;
ro = ospf6_route_next (ro))
{
if (CHECK_FLAG (ro->flag, OSPF6_ROUTE_ACTIVE_SUMMARY))
ospf6_abr_originate_summary_to_area (ro, area);
}
}
}
/* install calculated routes to border routers */
for (ro = ospf6_route_head (area->ospf6->brouter_table); ro;
ro = ospf6_route_next (ro))
ospf6_abr_originate_summary_to_area (ro, area);
/* install calculated routes to network (may be rejected by ranges) */
for (ro = ospf6_route_head (area->ospf6->route_table); ro;
ro = ospf6_route_next (ro))
ospf6_abr_originate_summary_to_area (ro, area);
}
static void ospf6_neighbor_state_change(u_char next_state, struct ospf6_neighbor * on)
{
u_char prev_state;
prev_state = on->state;
on->state = next_state;
if(prev_state == next_state)
return;
if(IS_OSPF6_SIBLING_DEBUG_NEIGHBOR)
{
zlog_debug("Neighbor state change %s: [%s]->[%s]", on->name, ospf6_neighbor_state_str[prev_state], ospf6_neighbor_state_str[next_state]);
}
if (prev_state == OSPF6_NEIGHBOR_FULL || next_state == OSPF6_NEIGHBOR_FULL)
{
struct ospf6_area_hostnum * ah = calloc(1, sizeof(struct ospf6_area_hostnum));
ah->oa = on->ospf6_if->area;
ah->hostnum = on->ospf6_if->ctrl_client->hostnum;
OSPF6_ROUTER_LSA_SCHEDULE (ah);
if(on->ospf6_if->state == OSPF6_INTERFACE_DR)
{
// OSPF6_NETWORK_LSA_SCHEDULE (on->ospf6_if);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (on->ospf6_if);
}
// OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (on->ospf6_if->area);
}
}
void
ospf6_abr_disable_area (struct ospf6_area *area)
{
struct ospf6_area *oa;
struct ospf6_route *ro;
struct ospf6_lsa *old;
struct listnode *node, *nnode;
/* Withdraw all summary prefixes previously originated */
for (ro = ospf6_route_head (area->summary_prefix); ro;
ro = ospf6_route_next (ro))
{
old = ospf6_lsdb_lookup (ro->path.origin.type, ro->path.origin.id,
area->ospf6->router_id, area->lsdb);
if (old)
ospf6_lsa_purge (old);
ospf6_route_remove (ro, area->summary_prefix);
}
/* Withdraw all summary router-routes previously originated */
for (ro = ospf6_route_head (area->summary_router); ro;
ro = ospf6_route_next (ro))
{
old = ospf6_lsdb_lookup (ro->path.origin.type, ro->path.origin.id,
area->ospf6->router_id, area->lsdb);
if (old)
ospf6_lsa_purge (old);
ospf6_route_remove (ro, area->summary_router);
}
/* Schedule Router-LSA for each area (ABR status may change) */
for (ALL_LIST_ELEMENTS (area->ospf6->area_list, node, nnode, oa))
/* update B bit for each area */
OSPF6_ROUTER_LSA_SCHEDULE (oa);
}
static void
ospf6_interface_state_change (u_char next_state, struct ospf6_interface *oi)
{
u_char prev_state;
prev_state = oi->state;
oi->state = next_state;
if (prev_state == next_state)
return;
/* log */
if (IS_OSPF6_DEBUG_INTERFACE)
{
zlog_debug ("Interface state change %s: %s -> %s", oi->interface->name,
ospf6_interface_state_str[prev_state],
ospf6_interface_state_str[next_state]);
}
oi->state_change++;
if ((prev_state == OSPF6_INTERFACE_DR ||
prev_state == OSPF6_INTERFACE_BDR) &&
(next_state != OSPF6_INTERFACE_DR &&
next_state != OSPF6_INTERFACE_BDR))
ospf6_sso (oi->interface->ifindex, &alldrouters6, IPV6_LEAVE_GROUP);
if ((prev_state != OSPF6_INTERFACE_DR &&
prev_state != OSPF6_INTERFACE_BDR) &&
(next_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_BDR))
ospf6_sso (oi->interface->ifindex, &alldrouters6, IPV6_JOIN_GROUP);
OSPF6_ROUTER_LSA_SCHEDULE (oi->area);
if (next_state == OSPF6_INTERFACE_DOWN)
{
OSPF6_NETWORK_LSA_EXECUTE (oi);
OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
else if (prev_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_DR)
{
OSPF6_NETWORK_LSA_SCHEDULE (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
#ifdef HAVE_SNMP
/* Terminal state or regression */
if ((next_state == OSPF6_INTERFACE_POINTTOPOINT) ||
(next_state == OSPF6_INTERFACE_DROTHER) ||
(next_state == OSPF6_INTERFACE_BDR) ||
(next_state == OSPF6_INTERFACE_DR) ||
(next_state < prev_state))
ospf6TrapIfStateChange (oi);
#endif
}
static void
ospf6_neighbor_state_change (u_char next_state, struct ospf6_neighbor *on)
{
u_char prev_state;
prev_state = on->state;
on->state = next_state;
if (prev_state == next_state)
return;
gettimeofday (&on->last_changed, (struct timezone *) NULL);
/* log */
if (IS_OSPF6_DEBUG_NEIGHBOR (STATE))
{
zlog_info ("Neighbor state change %s: [%s]->[%s]", on->name,
ospf6_neighbor_state_str[prev_state],
ospf6_neighbor_state_str[next_state]);
}
if (prev_state == OSPF6_NEIGHBOR_FULL || next_state == OSPF6_NEIGHBOR_FULL)
{
OSPF6_ROUTER_LSA_SCHEDULE (on->ospf6_if->area);
if (on->ospf6_if->state == OSPF6_INTERFACE_DR)
{
OSPF6_NETWORK_LSA_SCHEDULE (on->ospf6_if);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (on->ospf6_if);
}
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (on->ospf6_if->area);
}
#ifdef XXX
if (prev_state == NBS_FULL || next_state == NBS_FULL)
nbs_full_change (on->ospf6_interface);
/* check for LSAs that already reached MaxAge */
if ((prev_state == OSPF6_NEIGHBOR_EXCHANGE ||
prev_state == OSPF6_NEIGHBOR_LOADING) &&
(next_state != OSPF6_NEIGHBOR_EXCHANGE &&
next_state != OSPF6_NEIGHBOR_LOADING))
{
ospf6_maxage_remover ();
}
#endif /*XXX*/
}
static void
ospf6_interface_state_change (u_char next_state, struct ospf6_interface *oi)
{
u_char prev_state;
prev_state = oi->state;
oi->state = next_state;
if (prev_state == next_state)
return;
/* log */
if (IS_OSPF6_DEBUG_INTERFACE)
{
zlog_debug ("Interface state change %s: %s -> %s", oi->interface->name,
ospf6_interface_state_str[prev_state],
ospf6_interface_state_str[next_state]);
}
if ((prev_state == OSPF6_INTERFACE_DR ||
prev_state == OSPF6_INTERFACE_BDR) &&
(next_state != OSPF6_INTERFACE_DR &&
next_state != OSPF6_INTERFACE_BDR))
ospf6_leave_alldrouters (oi->interface->ifindex);
if ((prev_state != OSPF6_INTERFACE_DR &&
prev_state != OSPF6_INTERFACE_BDR) &&
(next_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_BDR))
// ospf6_join_alldrouters (oi->interface->ifindex);
thread_add_event (master, rospf6_join_alldrouters_send, oi, 0);
OSPF6_ROUTER_LSA_SCHEDULE (oi->area);
if (next_state == OSPF6_INTERFACE_DOWN)
{
OSPF6_NETWORK_LSA_EXECUTE (oi);
OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
else if (prev_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_DR)
{
OSPF6_NETWORK_LSA_SCHEDULE (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
}
static void
ospf6_interface_state_change (u_char next_state, struct ospf6_interface *oi)
{
u_char prev_state;
prev_state = oi->state;
oi->state = next_state;
if (prev_state == next_state)
return;
/* log */
if (IS_OSPF6_DEBUG_INTERFACE)
{
zlog_debug ("Interface state change %s: %s -> %s", oi->interface->name,
ospf6_interface_state_str[prev_state],
ospf6_interface_state_str[next_state]);
}
if ((prev_state == OSPF6_INTERFACE_DR ||
prev_state == OSPF6_INTERFACE_BDR) &&
(next_state != OSPF6_INTERFACE_DR &&
next_state != OSPF6_INTERFACE_BDR))
ospf6_sso (oi->interface->ifindex, &alldrouters6, IPV6_LEAVE_GROUP);
if ((prev_state != OSPF6_INTERFACE_DR &&
prev_state != OSPF6_INTERFACE_BDR) &&
(next_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_BDR))
ospf6_sso (oi->interface->ifindex, &alldrouters6, IPV6_JOIN_GROUP);
OSPF6_ROUTER_LSA_SCHEDULE (oi->area);
if (next_state == OSPF6_INTERFACE_DOWN)
{
OSPF6_NETWORK_LSA_EXECUTE (oi);
OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
else if (prev_state == OSPF6_INTERFACE_DR ||
next_state == OSPF6_INTERFACE_DR)
{
OSPF6_NETWORK_LSA_SCHEDULE (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (oi);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (oi->area);
}
}
void
ospf6_asbr_redistribute_remove (int type, int ifindex, struct prefix *prefix)
{
struct ospf6_route *match;
struct ospf6_external_info *info = NULL;
struct route_node *node;
struct ospf6_lsa *lsa;
struct prefix prefix_id;
char pbuf[64], ibuf[16];
struct listnode *lnode, *lnnode;
struct ospf6_area *oa;
match = ospf6_route_lookup (prefix, ospf6->external_table);
if (match == NULL)
{
if (IS_OSPF6_DEBUG_ASBR)
{
prefix2str (prefix, pbuf, sizeof (pbuf));
zlog_debug ("No such route %s to withdraw", pbuf);
}
return;
}
info = match->route_option;
assert (info);
if (info->type != type)
{
if (IS_OSPF6_DEBUG_ASBR)
{
prefix2str (prefix, pbuf, sizeof (pbuf));
zlog_debug ("Original protocol mismatch: %s", pbuf);
}
return;
}
if (IS_OSPF6_DEBUG_ASBR)
{
prefix2str (prefix, pbuf, sizeof (pbuf));
inet_ntop (AF_INET, &prefix_id.u.prefix4, ibuf, sizeof (ibuf));
zlog_debug ("Withdraw %s (AS-External Id:%s)", pbuf, ibuf);
}
lsa = ospf6_lsdb_lookup (htons (OSPF6_LSTYPE_AS_EXTERNAL),
htonl (info->id), ospf6->router_id, ospf6->lsdb);
if (lsa)
ospf6_lsa_purge (lsa);
/* remove binding in external_id_table */
prefix_id.family = AF_INET;
prefix_id.prefixlen = 32;
prefix_id.u.prefix4.s_addr = htonl (info->id);
node = route_node_lookup (ospf6->external_id_table, &prefix_id);
assert (node);
node->info = NULL;
route_unlock_node (node);
ospf6_route_remove (match, ospf6->external_table);
XFREE (MTYPE_OSPF6_EXTERNAL_INFO, info);
/* Router-Bit (ASBR Flag) may have to be updated */
for (ALL_LIST_ELEMENTS (ospf6->area_list, lnode, lnnode, oa))
OSPF6_ROUTER_LSA_SCHEDULE (oa);
}
void
ospf6_asbr_redistribute_add (int type, int ifindex, struct prefix *prefix,
u_int nexthop_num, struct in6_addr *nexthop)
{
int ret;
struct ospf6_route troute;
struct ospf6_external_info tinfo;
struct ospf6_route *route, *match;
struct ospf6_external_info *info;
struct prefix prefix_id;
struct route_node *node;
char pbuf[64], ibuf[16];
struct listnode *lnode, *lnnode;
struct ospf6_area *oa;
if (! ospf6_zebra_is_redistribute (type))
return;
if (IS_OSPF6_DEBUG_ASBR)
{
prefix2str (prefix, pbuf, sizeof (pbuf));
zlog_debug ("Redistribute %s (%s)", pbuf, ZROUTE_NAME (type));
}
/* if route-map was specified but not found, do not advertise */
if (ospf6->rmap[type].name)
{
if (ospf6->rmap[type].map == NULL)
ospf6_asbr_routemap_update (NULL);
if (ospf6->rmap[type].map == NULL)
{
zlog_warn ("route-map \"%s\" not found, suppress redistributing",
ospf6->rmap[type].name);
return;
}
}
/* apply route-map */
if (ospf6->rmap[type].map)
{
memset (&troute, 0, sizeof (troute));
memset (&tinfo, 0, sizeof (tinfo));
troute.route_option = &tinfo;
ret = route_map_apply (ospf6->rmap[type].map, prefix,
RMAP_OSPF6, &troute);
if (ret == RMAP_DENYMATCH)
{
if (IS_OSPF6_DEBUG_ASBR)
zlog_debug ("Denied by route-map \"%s\"", ospf6->rmap[type].name);
return;
}
}
match = ospf6_route_lookup (prefix, ospf6->external_table);
if (match)
{
info = match->route_option;
/* copy result of route-map */
if (ospf6->rmap[type].map)
{
if (troute.path.metric_type)
match->path.metric_type = troute.path.metric_type;
if (troute.path.cost)
match->path.cost = troute.path.cost;
if (! IN6_IS_ADDR_UNSPECIFIED (&tinfo.forwarding))
memcpy (&info->forwarding, &tinfo.forwarding,
sizeof (struct in6_addr));
}
info->type = type;
match->nexthop[0].ifindex = ifindex;
if (nexthop_num && nexthop)
memcpy (&match->nexthop[0].address, nexthop, sizeof (struct in6_addr));
/* create/update binding in external_id_table */
prefix_id.family = AF_INET;
prefix_id.prefixlen = 32;
prefix_id.u.prefix4.s_addr = htonl (info->id);
node = route_node_get (ospf6->external_id_table, &prefix_id);
node->info = match;
if (IS_OSPF6_DEBUG_ASBR)
{
inet_ntop (AF_INET, &prefix_id.u.prefix4, ibuf, sizeof (ibuf));
zlog_debug ("Advertise as AS-External Id:%s", ibuf);
}
match->path.origin.id = htonl (info->id);
ospf6_as_external_lsa_originate (match);
return;
}
/* create new entry */
route = ospf6_route_create ();
route->type = OSPF6_DEST_TYPE_NETWORK;
memcpy (&route->prefix, prefix, sizeof (struct prefix));
info = (struct ospf6_external_info *)
XCALLOC (MTYPE_OSPF6_EXTERNAL_INFO, sizeof (struct ospf6_external_info));
route->route_option = info;
info->id = ospf6->external_id++;
/* copy result of route-map */
if (ospf6->rmap[type].map)
{
if (troute.path.metric_type)
route->path.metric_type = troute.path.metric_type;
if (troute.path.cost)
route->path.cost = troute.path.cost;
if (! IN6_IS_ADDR_UNSPECIFIED (&tinfo.forwarding))
memcpy (&info->forwarding, &tinfo.forwarding,
sizeof (struct in6_addr));
}
info->type = type;
route->nexthop[0].ifindex = ifindex;
if (nexthop_num && nexthop)
memcpy (&route->nexthop[0].address, nexthop, sizeof (struct in6_addr));
/* create/update binding in external_id_table */
prefix_id.family = AF_INET;
prefix_id.prefixlen = 32;
prefix_id.u.prefix4.s_addr = htonl (info->id);
node = route_node_get (ospf6->external_id_table, &prefix_id);
node->info = route;
route = ospf6_route_add (route, ospf6->external_table);
route->route_option = info;
if (IS_OSPF6_DEBUG_ASBR)
{
inet_ntop (AF_INET, &prefix_id.u.prefix4, ibuf, sizeof (ibuf));
zlog_debug ("Advertise as AS-External Id:%s", ibuf);
}
route->path.origin.id = htonl (info->id);
ospf6_as_external_lsa_originate (route);
/* Router-Bit (ASBR Flag) may have to be updated */
for (ALL_LIST_ELEMENTS (ospf6->area_list, lnode, lnnode, oa))
OSPF6_ROUTER_LSA_SCHEDULE (oa);
}
