diff options
Diffstat (limited to 'ospf6d/ospf6_abr.c')
| -rw-r--r-- | ospf6d/ospf6_abr.c | 1949 |
1 files changed, 954 insertions, 995 deletions
diff --git a/ospf6d/ospf6_abr.c b/ospf6d/ospf6_abr.c index 2e195d0afe..f198ac4af6 100644 --- a/ospf6d/ospf6_abr.c +++ b/ospf6d/ospf6_abr.c @@ -51,1068 +51,1034 @@ unsigned char conf_debug_ospf6_abr; -int -ospf6_is_router_abr (struct ospf6 *o) +int ospf6_is_router_abr(struct ospf6 *o) { - struct listnode *node; - struct ospf6_area *oa; - int area_count = 0; + struct listnode *node; + struct ospf6_area *oa; + int area_count = 0; - for (ALL_LIST_ELEMENTS_RO (o->area_list, node, oa)) - if (IS_AREA_ENABLED (oa)) - area_count++; + for (ALL_LIST_ELEMENTS_RO(o->area_list, node, oa)) + if (IS_AREA_ENABLED(oa)) + area_count++; - if (area_count > 1) - return 1; - return 0; + if (area_count > 1) + return 1; + return 0; } -static int -ospf6_abr_nexthops_belong_to_area (struct ospf6_route *route, - struct ospf6_area *area) +static int ospf6_abr_nexthops_belong_to_area(struct ospf6_route *route, + struct ospf6_area *area) { - struct ospf6_interface *oi; - - oi = ospf6_interface_lookup_by_ifindex (ospf6_route_get_first_nh_index(route)); - if (oi && oi->area && oi->area == area) - return 1; - else - return 0; + struct ospf6_interface *oi; + + oi = ospf6_interface_lookup_by_ifindex( + ospf6_route_get_first_nh_index(route)); + if (oi && oi->area && oi->area == area) + return 1; + else + return 0; } -static void -ospf6_abr_delete_route (struct ospf6_route *range, struct ospf6_route *summary, - struct ospf6_route_table *summary_table, - struct ospf6_lsa *old) +static void ospf6_abr_delete_route(struct ospf6_route *range, + struct ospf6_route *summary, + struct ospf6_route_table *summary_table, + struct ospf6_lsa *old) { - if (summary) - { - ospf6_route_remove (summary, summary_table); - } + if (summary) { + ospf6_route_remove(summary, summary_table); + } - if (old && !OSPF6_LSA_IS_MAXAGE (old)) - ospf6_lsa_purge (old); + if (old && !OSPF6_LSA_IS_MAXAGE(old)) + ospf6_lsa_purge(old); } -void -ospf6_abr_enable_area (struct ospf6_area *area) +void ospf6_abr_enable_area(struct ospf6_area *area) { - struct ospf6_area *oa; - struct listnode *node, *nnode; + struct ospf6_area *oa; + 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); + for (ALL_LIST_ELEMENTS(area->ospf6->area_list, node, nnode, oa)) + /* update B bit for each area */ + OSPF6_ROUTER_LSA_SCHEDULE(oa); } -void -ospf6_abr_disable_area (struct ospf6_area *area) +void ospf6_abr_disable_area(struct ospf6_area *area) { - struct ospf6_area *oa; - struct ospf6_route *ro, *nro; - struct ospf6_lsa *old; - struct listnode *node, *nnode; - - /* Withdraw all summary prefixes previously originated */ - for (ro = ospf6_route_head (area->summary_prefix); ro; ro = nro) - { - nro = 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 = nro) - { - nro = 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); + struct ospf6_area *oa; + struct ospf6_route *ro, *nro; + struct ospf6_lsa *old; + struct listnode *node, *nnode; + + /* Withdraw all summary prefixes previously originated */ + for (ro = ospf6_route_head(area->summary_prefix); ro; ro = nro) { + nro = 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 = nro) { + nro = 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); } /* RFC 2328 12.4.3. Summary-LSAs */ /* Returns 1 if a summary LSA has been generated for the area */ /* This is used by the area/range logic to add/remove blackhole routes */ -int -ospf6_abr_originate_summary_to_area (struct ospf6_route *route, - struct ospf6_area *area) +int ospf6_abr_originate_summary_to_area(struct ospf6_route *route, + struct ospf6_area *area) { - struct ospf6_lsa *lsa, *old = NULL; - struct ospf6_route *summary, *range = NULL; - struct ospf6_area *route_area; - char buffer[OSPF6_MAX_LSASIZE]; - struct ospf6_lsa_header *lsa_header; - caddr_t p; - struct ospf6_inter_prefix_lsa *prefix_lsa; - struct ospf6_inter_router_lsa *router_lsa; - struct ospf6_route_table *summary_table = NULL; - u_int16_t type; - char buf[PREFIX2STR_BUFFER]; - int is_debug = 0; - - /* Only destination type network, range or ASBR are considered */ - if (route->type != OSPF6_DEST_TYPE_NETWORK && - route->type != OSPF6_DEST_TYPE_RANGE && - ((route->type != OSPF6_DEST_TYPE_ROUTER) || - !CHECK_FLAG (route->path.router_bits, OSPF6_ROUTER_BIT_E))) - { - if (is_debug) - zlog_debug ("Route type is none of network, range nor ASBR, ignore"); - return 0; - } - - /* AS External routes are never considered */ - if (route->path.type == OSPF6_PATH_TYPE_EXTERNAL1 || - route->path.type == OSPF6_PATH_TYPE_EXTERNAL2) - { - if (is_debug) - zlog_debug ("Path type is external, skip"); - return 0; - } - - /* do not generate if the path's area is the same as target area */ - if (route->path.area_id == area->area_id) - { - if (is_debug) - zlog_debug ("The route is in the area itself, ignore"); - return 0; - } - - /* do not generate if the nexthops belongs to the target area */ - if (ospf6_abr_nexthops_belong_to_area (route, area)) - { - if (is_debug) - zlog_debug ("The route's nexthop is in the same area, ignore"); - return 0; - } - - if (route->type == OSPF6_DEST_TYPE_ROUTER) - { - if (ADV_ROUTER_IN_PREFIX (&route->prefix) == area->ospf6->router_id) - { - inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)), buf, - sizeof (buf)); - zlog_debug ("%s: Skipping ASBR announcement for ABR (%s)", __func__, - buf); - return 0; + struct ospf6_lsa *lsa, *old = NULL; + struct ospf6_route *summary, *range = NULL; + struct ospf6_area *route_area; + char buffer[OSPF6_MAX_LSASIZE]; + struct ospf6_lsa_header *lsa_header; + caddr_t p; + struct ospf6_inter_prefix_lsa *prefix_lsa; + struct ospf6_inter_router_lsa *router_lsa; + struct ospf6_route_table *summary_table = NULL; + u_int16_t type; + char buf[PREFIX2STR_BUFFER]; + int is_debug = 0; + + /* Only destination type network, range or ASBR are considered */ + if (route->type != OSPF6_DEST_TYPE_NETWORK + && route->type != OSPF6_DEST_TYPE_RANGE + && ((route->type != OSPF6_DEST_TYPE_ROUTER) + || !CHECK_FLAG(route->path.router_bits, OSPF6_ROUTER_BIT_E))) { + if (is_debug) + zlog_debug( + "Route type is none of network, range nor ASBR, ignore"); + return 0; } - } - - if (route->type == OSPF6_DEST_TYPE_ROUTER) - { - if (IS_OSPF6_DEBUG_ABR || IS_OSPF6_DEBUG_ORIGINATE (INTER_ROUTER)) - { - is_debug++; - inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)), - buf, sizeof (buf)); - zlog_debug ("Originating summary in area %s for ASBR %s", - area->name, buf); - } - summary_table = area->summary_router; - } - else - { - if (IS_OSPF6_DEBUG_ABR || IS_OSPF6_DEBUG_ORIGINATE (INTER_PREFIX)) - { - is_debug++; - prefix2str (&route->prefix, buf, sizeof (buf)); - zlog_debug ("Originating summary in area %s for %s", - area->name, buf); - } - summary_table = area->summary_prefix; - } - - summary = ospf6_route_lookup (&route->prefix, summary_table); - if (summary) - old = ospf6_lsdb_lookup (summary->path.origin.type, - summary->path.origin.id, - area->ospf6->router_id, area->lsdb); - - /* if this route has just removed, remove corresponding LSA */ - if (CHECK_FLAG (route->flag, OSPF6_ROUTE_REMOVE)) - { - if (is_debug) - zlog_debug ("The route has just removed, purge previous LSA"); - - if (route->type == OSPF6_DEST_TYPE_RANGE) - { - /* Whether the route have active longer prefix */ - if (! CHECK_FLAG (route->flag, OSPF6_ROUTE_ACTIVE_SUMMARY)) - { - if (is_debug) - zlog_debug ("The range is not active. withdraw"); - - ospf6_abr_delete_route (route, summary, summary_table, old); - } + + /* AS External routes are never considered */ + if (route->path.type == OSPF6_PATH_TYPE_EXTERNAL1 + || route->path.type == OSPF6_PATH_TYPE_EXTERNAL2) { + if (is_debug) + zlog_debug("Path type is external, skip"); + return 0; } - else - if (old) - ospf6_lsa_purge (old); - - return 0; - } - - if ((route->type == OSPF6_DEST_TYPE_ROUTER) && IS_AREA_STUB(area)) - { - if (is_debug) - zlog_debug ("Area has been stubbed, purge Inter-Router LSA"); - - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - - if (area->no_summary && (route->path.subtype != OSPF6_PATH_SUBTYPE_DEFAULT_RT)) - { - if (is_debug) - zlog_debug ("Area has been stubbed, purge prefix LSA"); - - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - - /* do not generate if the route cost is greater or equal to LSInfinity */ - if (route->path.cost >= OSPF_LS_INFINITY) - { - /* When we're clearing the range route because all active prefixes - * under the range are gone, we set the range's cost to - * OSPF_AREA_RANGE_COST_UNSPEC, which is > OSPF_LS_INFINITY. We - * don't want to trigger the code here for that. This code is for - * handling routes that have gone to infinity. The range removal happens - * elsewhere. - */ - if ((route->type != OSPF6_DEST_TYPE_RANGE) && - (route->path.cost != OSPF_AREA_RANGE_COST_UNSPEC)) - { - if (is_debug) - zlog_debug ("The cost exceeds LSInfinity, withdraw"); - if (old) - ospf6_lsa_purge (old); - return 0; + + /* do not generate if the path's area is the same as target area */ + if (route->path.area_id == area->area_id) { + if (is_debug) + zlog_debug("The route is in the area itself, ignore"); + return 0; + } + + /* do not generate if the nexthops belongs to the target area */ + if (ospf6_abr_nexthops_belong_to_area(route, area)) { + if (is_debug) + zlog_debug( + "The route's nexthop is in the same area, ignore"); + return 0; + } + + if (route->type == OSPF6_DEST_TYPE_ROUTER) { + if (ADV_ROUTER_IN_PREFIX(&route->prefix) + == area->ospf6->router_id) { + inet_ntop(AF_INET, + &(ADV_ROUTER_IN_PREFIX(&route->prefix)), buf, + sizeof(buf)); + zlog_debug( + "%s: Skipping ASBR announcement for ABR (%s)", + __func__, buf); + return 0; + } + } + + if (route->type == OSPF6_DEST_TYPE_ROUTER) { + if (IS_OSPF6_DEBUG_ABR + || IS_OSPF6_DEBUG_ORIGINATE(INTER_ROUTER)) { + is_debug++; + inet_ntop(AF_INET, + &(ADV_ROUTER_IN_PREFIX(&route->prefix)), buf, + sizeof(buf)); + zlog_debug("Originating summary in area %s for ASBR %s", + area->name, buf); + } + summary_table = area->summary_router; + } else { + if (IS_OSPF6_DEBUG_ABR + || IS_OSPF6_DEBUG_ORIGINATE(INTER_PREFIX)) { + is_debug++; + prefix2str(&route->prefix, buf, sizeof(buf)); + zlog_debug("Originating summary in area %s for %s", + area->name, buf); + } + summary_table = area->summary_prefix; + } + + summary = ospf6_route_lookup(&route->prefix, summary_table); + if (summary) + old = ospf6_lsdb_lookup(summary->path.origin.type, + summary->path.origin.id, + area->ospf6->router_id, area->lsdb); + + /* if this route has just removed, remove corresponding LSA */ + if (CHECK_FLAG(route->flag, OSPF6_ROUTE_REMOVE)) { + if (is_debug) + zlog_debug( + "The route has just removed, purge previous LSA"); + + if (route->type == OSPF6_DEST_TYPE_RANGE) { + /* Whether the route have active longer prefix */ + if (!CHECK_FLAG(route->flag, + OSPF6_ROUTE_ACTIVE_SUMMARY)) { + if (is_debug) + zlog_debug( + "The range is not active. withdraw"); + + ospf6_abr_delete_route(route, summary, + summary_table, old); + } + } else if (old) + ospf6_lsa_purge(old); + + return 0; + } + + if ((route->type == OSPF6_DEST_TYPE_ROUTER) && IS_AREA_STUB(area)) { + if (is_debug) + zlog_debug( + "Area has been stubbed, purge Inter-Router LSA"); + + ospf6_abr_delete_route(route, summary, summary_table, old); + return 0; + } + + if (area->no_summary + && (route->path.subtype != OSPF6_PATH_SUBTYPE_DEFAULT_RT)) { + if (is_debug) + zlog_debug("Area has been stubbed, purge prefix LSA"); + + ospf6_abr_delete_route(route, summary, summary_table, old); + return 0; + } + + /* do not generate if the route cost is greater or equal to LSInfinity + */ + if (route->path.cost >= OSPF_LS_INFINITY) { + /* When we're clearing the range route because all active + * prefixes + * under the range are gone, we set the range's cost to + * OSPF_AREA_RANGE_COST_UNSPEC, which is > OSPF_LS_INFINITY. We + * don't want to trigger the code here for that. This code is + * for + * handling routes that have gone to infinity. The range removal + * happens + * elsewhere. + */ + if ((route->type != OSPF6_DEST_TYPE_RANGE) + && (route->path.cost != OSPF_AREA_RANGE_COST_UNSPEC)) { + if (is_debug) + zlog_debug( + "The cost exceeds LSInfinity, withdraw"); + if (old) + ospf6_lsa_purge(old); + return 0; + } + } + + /* if this is a route to ASBR */ + if (route->type == OSPF6_DEST_TYPE_ROUTER) { + /* Only the prefered best path is considered */ + if (!CHECK_FLAG(route->flag, OSPF6_ROUTE_BEST)) { + if (is_debug) + zlog_debug( + "This is the secondary path to the ASBR, ignore"); + ospf6_abr_delete_route(route, summary, summary_table, + old); + return 0; + } + + /* Do not generate if the area is stub */ + /* XXX */ + } + + /* if this is an intra-area route, this may be suppressed by aggregation + */ + if (route->type == OSPF6_DEST_TYPE_NETWORK + && route->path.type == OSPF6_PATH_TYPE_INTRA) { + /* search for configured address range for the route's area */ + route_area = + ospf6_area_lookup(route->path.area_id, area->ospf6); + assert(route_area); + range = ospf6_route_lookup_bestmatch(&route->prefix, + route_area->range_table); + + /* ranges are ignored when originate backbone routes to transit + area. + Otherwise, if ranges are configured, the route is suppressed. + */ + if (range && !CHECK_FLAG(range->flag, OSPF6_ROUTE_REMOVE) + && (route->path.area_id != OSPF_AREA_BACKBONE + || !IS_AREA_TRANSIT(area))) { + if (is_debug) { + prefix2str(&range->prefix, buf, sizeof(buf)); + zlog_debug("Suppressed by range %s of area %s", + buf, route_area->name); + } + ospf6_abr_delete_route(route, summary, summary_table, + old); + return 0; + } + } + + /* If this is a configured address range */ + if (route->type == OSPF6_DEST_TYPE_RANGE) { + /* If DoNotAdvertise is set */ + if (CHECK_FLAG(route->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE)) { + if (is_debug) + zlog_debug( + "This is the range with DoNotAdvertise set. ignore"); + ospf6_abr_delete_route(route, summary, summary_table, + old); + return 0; + } + + /* If there are no active prefixes in this range, remove */ + if (!CHECK_FLAG(route->flag, OSPF6_ROUTE_ACTIVE_SUMMARY)) { + if (is_debug) + zlog_debug("The range is not active. withdraw"); + ospf6_abr_delete_route(route, summary, summary_table, + old); + return 0; + } + } + + /* Check export list */ + if (EXPORT_NAME(area)) { + if (EXPORT_LIST(area) == NULL) + EXPORT_LIST(area) = + access_list_lookup(AFI_IP6, EXPORT_NAME(area)); + + if (EXPORT_LIST(area)) + if (access_list_apply(EXPORT_LIST(area), &route->prefix) + == FILTER_DENY) { + if (is_debug) { + inet_ntop(AF_INET, + &(ADV_ROUTER_IN_PREFIX( + &route->prefix)), + buf, sizeof(buf)); + zlog_debug( + "prefix %s was denied by export list", + buf); + } + return 0; + } + } + + /* Check filter-list */ + if (PREFIX_NAME_OUT(area)) { + if (PREFIX_LIST_OUT(area) == NULL) + PREFIX_LIST_OUT(area) = prefix_list_lookup( + AFI_IP6, PREFIX_NAME_OUT(area)); + + if (PREFIX_LIST_OUT(area)) + if (prefix_list_apply(PREFIX_LIST_OUT(area), + &route->prefix) + != PREFIX_PERMIT) { + if (is_debug) { + inet_ntop(AF_INET, + &(ADV_ROUTER_IN_PREFIX( + &route->prefix)), + buf, sizeof(buf)); + zlog_debug( + "prefix %s was denied by filter-list out", + buf); + } + return 0; + } } - } - - /* if this is a route to ASBR */ - if (route->type == OSPF6_DEST_TYPE_ROUTER) - { - /* Only the prefered best path is considered */ - if (! CHECK_FLAG (route->flag, OSPF6_ROUTE_BEST)) - { - if (is_debug) - zlog_debug ("This is the secondary path to the ASBR, ignore"); - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - - /* Do not generate if the area is stub */ - /* XXX */ - } - - /* if this is an intra-area route, this may be suppressed by aggregation */ - if (route->type == OSPF6_DEST_TYPE_NETWORK && - route->path.type == OSPF6_PATH_TYPE_INTRA) - { - /* search for configured address range for the route's area */ - route_area = ospf6_area_lookup (route->path.area_id, area->ospf6); - assert (route_area); - range = ospf6_route_lookup_bestmatch (&route->prefix, - route_area->range_table); - - /* ranges are ignored when originate backbone routes to transit area. - Otherwise, if ranges are configured, the route is suppressed. */ - if (range && ! CHECK_FLAG (range->flag, OSPF6_ROUTE_REMOVE) && - (route->path.area_id != OSPF_AREA_BACKBONE || - ! IS_AREA_TRANSIT (area))) - { - if (is_debug) - { - prefix2str (&range->prefix, buf, sizeof (buf)); - zlog_debug ("Suppressed by range %s of area %s", - buf, route_area->name); - } - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - } - - /* If this is a configured address range */ - if (route->type == OSPF6_DEST_TYPE_RANGE) - { - /* If DoNotAdvertise is set */ - if (CHECK_FLAG (route->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE)) - { - if (is_debug) - zlog_debug ("This is the range with DoNotAdvertise set. ignore"); - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - - /* If there are no active prefixes in this range, remove */ - if (! CHECK_FLAG (route->flag, OSPF6_ROUTE_ACTIVE_SUMMARY)) - { - if (is_debug) - zlog_debug ("The range is not active. withdraw"); - ospf6_abr_delete_route (route, summary, summary_table, old); - return 0; - } - } - - /* Check export list */ - if (EXPORT_NAME (area)) - { - if (EXPORT_LIST (area) == NULL) - EXPORT_LIST (area) = - access_list_lookup (AFI_IP6, EXPORT_NAME (area)); - - if (EXPORT_LIST (area)) - if (access_list_apply (EXPORT_LIST (area), - &route->prefix) == FILTER_DENY) - { - if (is_debug) - { - inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)), - buf, sizeof(buf)); - zlog_debug ("prefix %s was denied by export list", buf); - } - return 0; - } - } - - /* Check filter-list */ - if (PREFIX_NAME_OUT (area)) - { - if (PREFIX_LIST_OUT (area) == NULL) - PREFIX_LIST_OUT (area) = - prefix_list_lookup(AFI_IP6, PREFIX_NAME_OUT (area)); - - if (PREFIX_LIST_OUT (area)) - if (prefix_list_apply (PREFIX_LIST_OUT (area), - &route->prefix) != PREFIX_PERMIT) - { - if (is_debug) - { - inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)), - buf, sizeof (buf)); - zlog_debug ("prefix %s was denied by filter-list out", buf); - } - return 0; - } - } - - /* the route is going to be originated. store it in area's summary_table */ - if (summary == NULL) - { - summary = ospf6_route_copy (route); - summary->path.origin.adv_router = area->ospf6->router_id; - - if (route->type == OSPF6_DEST_TYPE_ROUTER) - { - summary->path.origin.type = htons (OSPF6_LSTYPE_INTER_ROUTER); - summary->path.origin.id = ADV_ROUTER_IN_PREFIX (&route->prefix); + + /* the route is going to be originated. store it in area's summary_table + */ + if (summary == NULL) { + summary = ospf6_route_copy(route); + summary->path.origin.adv_router = area->ospf6->router_id; + + if (route->type == OSPF6_DEST_TYPE_ROUTER) { + summary->path.origin.type = + htons(OSPF6_LSTYPE_INTER_ROUTER); + summary->path.origin.id = + ADV_ROUTER_IN_PREFIX(&route->prefix); + } else { + summary->path.origin.type = + htons(OSPF6_LSTYPE_INTER_PREFIX); + summary->path.origin.id = ospf6_new_ls_id( + summary->path.origin.type, + summary->path.origin.adv_router, area->lsdb); + } + summary = ospf6_route_add(summary, summary_table); + } else { + summary->type = route->type; + monotime(&summary->changed); } - else - { - summary->path.origin.type = htons (OSPF6_LSTYPE_INTER_PREFIX); - summary->path.origin.id = - ospf6_new_ls_id (summary->path.origin.type, - summary->path.origin.adv_router, area->lsdb); + + summary->path.router_bits = route->path.router_bits; + summary->path.options[0] = route->path.options[0]; + summary->path.options[1] = route->path.options[1]; + summary->path.options[2] = route->path.options[2]; + summary->path.prefix_options = route->path.prefix_options; + summary->path.area_id = area->area_id; + summary->path.type = OSPF6_PATH_TYPE_INTER; + summary->path.subtype = route->path.subtype; + summary->path.cost = route->path.cost; + /* summary->nexthop[0] = route->nexthop[0]; */ + + /* prepare buffer */ + memset(buffer, 0, sizeof(buffer)); + lsa_header = (struct ospf6_lsa_header *)buffer; + + if (route->type == OSPF6_DEST_TYPE_ROUTER) { + router_lsa = (struct ospf6_inter_router_lsa + *)((caddr_t)lsa_header + + sizeof(struct ospf6_lsa_header)); + p = (caddr_t)router_lsa + sizeof(struct ospf6_inter_router_lsa); + + /* Fill Inter-Area-Router-LSA */ + router_lsa->options[0] = route->path.options[0]; + router_lsa->options[1] = route->path.options[1]; + router_lsa->options[2] = route->path.options[2]; + OSPF6_ABR_SUMMARY_METRIC_SET(router_lsa, route->path.cost); + router_lsa->router_id = ADV_ROUTER_IN_PREFIX(&route->prefix); + type = htons(OSPF6_LSTYPE_INTER_ROUTER); + } else { + prefix_lsa = (struct ospf6_inter_prefix_lsa + *)((caddr_t)lsa_header + + sizeof(struct ospf6_lsa_header)); + p = (caddr_t)prefix_lsa + sizeof(struct ospf6_inter_prefix_lsa); + + /* Fill Inter-Area-Prefix-LSA */ + OSPF6_ABR_SUMMARY_METRIC_SET(prefix_lsa, route->path.cost); + prefix_lsa->prefix.prefix_length = route->prefix.prefixlen; + prefix_lsa->prefix.prefix_options = route->path.prefix_options; + + /* set Prefix */ + memcpy(p, &route->prefix.u.prefix6, + OSPF6_PREFIX_SPACE(route->prefix.prefixlen)); + ospf6_prefix_apply_mask(&prefix_lsa->prefix); + p += OSPF6_PREFIX_SPACE(route->prefix.prefixlen); + type = htons(OSPF6_LSTYPE_INTER_PREFIX); } - summary = ospf6_route_add (summary, summary_table); - } - else - { - summary->type = route->type; - monotime(&summary->changed); - } - - summary->path.router_bits = route->path.router_bits; - summary->path.options[0] = route->path.options[0]; - summary->path.options[1] = route->path.options[1]; - summary->path.options[2] = route->path.options[2]; - summary->path.prefix_options = route->path.prefix_options; - summary->path.area_id = area->area_id; - summary->path.type = OSPF6_PATH_TYPE_INTER; - summary->path.subtype = route->path.subtype; - summary->path.cost = route->path.cost; - /* summary->nexthop[0] = route->nexthop[0]; */ - - /* prepare buffer */ - memset (buffer, 0, sizeof (buffer)); - lsa_header = (struct ospf6_lsa_header *) buffer; - - if (route->type == OSPF6_DEST_TYPE_ROUTER) - { - router_lsa = (struct ospf6_inter_router_lsa *) - ((caddr_t) lsa_header + sizeof (struct ospf6_lsa_header)); - p = (caddr_t) router_lsa + sizeof (struct ospf6_inter_router_lsa); - - /* Fill Inter-Area-Router-LSA */ - router_lsa->options[0] = route->path.options[0]; - router_lsa->options[1] = route->path.options[1]; - router_lsa->options[2] = route->path.options[2]; - OSPF6_ABR_SUMMARY_METRIC_SET (router_lsa, route->path.cost); - router_lsa->router_id = ADV_ROUTER_IN_PREFIX (&route->prefix); - type = htons (OSPF6_LSTYPE_INTER_ROUTER); - } - else - { - prefix_lsa = (struct ospf6_inter_prefix_lsa *) - ((caddr_t) lsa_header + sizeof (struct ospf6_lsa_header)); - p = (caddr_t) prefix_lsa + sizeof (struct ospf6_inter_prefix_lsa); - - /* Fill Inter-Area-Prefix-LSA */ - OSPF6_ABR_SUMMARY_METRIC_SET (prefix_lsa, route->path.cost); - prefix_lsa->prefix.prefix_length = route->prefix.prefixlen; - prefix_lsa->prefix.prefix_options = route->path.prefix_options; - - /* set Prefix */ - memcpy (p, &route->prefix.u.prefix6, - OSPF6_PREFIX_SPACE (route->prefix.prefixlen)); - ospf6_prefix_apply_mask (&prefix_lsa->prefix); - p += OSPF6_PREFIX_SPACE (route->prefix.prefixlen); - type = htons (OSPF6_LSTYPE_INTER_PREFIX); - } - - /* Fill LSA Header */ - lsa_header->age = 0; - lsa_header->type = type; - lsa_header->id = summary->path.origin.id; - lsa_header->adv_router = area->ospf6->router_id; - lsa_header->seqnum = - ospf6_new_ls_seqnum (lsa_header->type, lsa_header->id, - lsa_header->adv_router, area->lsdb); - lsa_header->length = htons ((caddr_t) p - (caddr_t) lsa_header); - - /* LSA checksum */ - ospf6_lsa_checksum (lsa_header); - - /* create LSA */ - lsa = ospf6_lsa_create (lsa_header); - - /* Originate */ - ospf6_lsa_originate_area (lsa, area); - - return 1; + + /* Fill LSA Header */ + lsa_header->age = 0; + lsa_header->type = type; + lsa_header->id = summary->path.origin.id; + lsa_header->adv_router = area->ospf6->router_id; + lsa_header->seqnum = + ospf6_new_ls_seqnum(lsa_header->type, lsa_header->id, + lsa_header->adv_router, area->lsdb); + lsa_header->length = htons((caddr_t)p - (caddr_t)lsa_header); + + /* LSA checksum */ + ospf6_lsa_checksum(lsa_header); + + /* create LSA */ + lsa = ospf6_lsa_create(lsa_header); + + /* Originate */ + ospf6_lsa_originate_area(lsa, area); + + return 1; } -void -ospf6_abr_range_reset_cost (struct ospf6 *ospf6) +void ospf6_abr_range_reset_cost(struct ospf6 *ospf6) { - struct listnode *node, *nnode; - struct ospf6_area *oa; - struct ospf6_route *range; - - for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa)) - for (range = ospf6_route_head (oa->range_table); range; - range = ospf6_route_next (range)) - OSPF6_ABR_RANGE_CLEAR_COST(range); + struct listnode *node, *nnode; + struct ospf6_area *oa; + struct ospf6_route *range; + + for (ALL_LIST_ELEMENTS(ospf6->area_list, node, nnode, oa)) + for (range = ospf6_route_head(oa->range_table); range; + range = ospf6_route_next(range)) + OSPF6_ABR_RANGE_CLEAR_COST(range); } -static inline u_int32_t -ospf6_abr_range_compute_cost (struct ospf6_route *range, struct ospf6 *o) +static inline u_int32_t ospf6_abr_range_compute_cost(struct ospf6_route *range, + struct ospf6 *o) { - struct ospf6_route *ro; - u_int32_t cost = 0; - - for (ro = ospf6_route_match_head (&range->prefix, o->route_table); - ro; ro = ospf6_route_match_next (&range->prefix, ro)) - { - if (ro->path.area_id == range->path.area_id && - (ro->path.type == OSPF6_PATH_TYPE_INTRA) && - ! CHECK_FLAG (ro->flag, OSPF6_ROUTE_REMOVE)) - cost = MAX (cost, ro->path.cost); - } - - return cost; + struct ospf6_route *ro; + u_int32_t cost = 0; + + for (ro = ospf6_route_match_head(&range->prefix, o->route_table); ro; + ro = ospf6_route_match_next(&range->prefix, ro)) { + if (ro->path.area_id == range->path.area_id + && (ro->path.type == OSPF6_PATH_TYPE_INTRA) + && !CHECK_FLAG(ro->flag, OSPF6_ROUTE_REMOVE)) + cost = MAX(cost, ro->path.cost); + } + + return cost; } static inline int -ospf6_abr_range_summary_needs_update (struct ospf6_route *range, - u_int32_t cost) +ospf6_abr_range_summary_needs_update(struct ospf6_route *range, u_int32_t cost) { - int redo_summary = 0; - - if (CHECK_FLAG(range->flag, OSPF6_ROUTE_REMOVE)) - { - UNSET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); - redo_summary = 1; - } - else if (CHECK_FLAG (range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE)) - { - if (range->path.cost != 0) - { - range->path.cost = 0; - redo_summary = 1; - } - } - else if (cost) - { - if ((OSPF6_PATH_COST_IS_CONFIGURED(range->path) && - range->path.cost != range->path.u.cost_config)) - { - range->path.cost = range->path.u.cost_config; - SET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); - redo_summary = 1; + int redo_summary = 0; + + if (CHECK_FLAG(range->flag, OSPF6_ROUTE_REMOVE)) { + UNSET_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); + redo_summary = 1; + } else if (CHECK_FLAG(range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE)) { + if (range->path.cost != 0) { + range->path.cost = 0; + redo_summary = 1; + } + } else if (cost) { + if ((OSPF6_PATH_COST_IS_CONFIGURED(range->path) + && range->path.cost != range->path.u.cost_config)) { + range->path.cost = range->path.u.cost_config; + SET_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); + redo_summary = 1; + } else if (!OSPF6_PATH_COST_IS_CONFIGURED(range->path) + && range->path.cost != cost) { + range->path.cost = cost; + SET_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); + redo_summary = 1; + } + } else if (CHECK_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY)) { + /* Cost is zero, meaning no active range */ + UNSET_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); + range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC; + redo_summary = 1; } - else if (!OSPF6_PATH_COST_IS_CONFIGURED(range->path) && - range->path.cost != cost) - { - range->path.cost = cost; - SET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); - redo_summary = 1; - } - } - else if (CHECK_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY)) - { - /* Cost is zero, meaning no active range */ - UNSET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY); - range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC; - redo_summary = 1; - } - - return (redo_summary); + + return (redo_summary); } -static void -ospf6_abr_range_update (struct ospf6_route *range) +static void ospf6_abr_range_update(struct ospf6_route *range) { - u_int32_t cost = 0; - struct listnode *node, *nnode; - struct ospf6_area *oa; - int summary_orig = 0; - - assert (range->type == OSPF6_DEST_TYPE_RANGE); - - /* update range's cost and active flag */ - cost = ospf6_abr_range_compute_cost (range, ospf6); - - /* Non-zero cost is a proxy for active longer prefixes in this range. - * If there are active routes covered by this range AND either the configured - * cost has changed or the summarized cost has changed then redo summaries. - * Alternately, if there are no longer active prefixes and there are - * summary announcements, withdraw those announcements. - * - * The don't advertise code relies on the path.cost being set to UNSPEC to - * work the first time. Subsequent times the path.cost is not 0 anyway if there - * were active ranges. - */ - - if (ospf6_abr_range_summary_needs_update (range, cost)) - { - for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa)) - summary_orig += ospf6_abr_originate_summary_to_area (range, oa); - - if (CHECK_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY) && summary_orig) - { - if (! CHECK_FLAG (range->flag, OSPF6_ROUTE_BLACKHOLE_ADDED)) - { - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Add discard route"); - - ospf6_zebra_add_discard (range); - } + u_int32_t cost = 0; + struct listnode *node, *nnode; + struct ospf6_area *oa; + int summary_orig = 0; + + assert(range->type == OSPF6_DEST_TYPE_RANGE); + + /* update range's cost and active flag */ + cost = ospf6_abr_range_compute_cost(range, ospf6); + + /* Non-zero cost is a proxy for active longer prefixes in this range. + * If there are active routes covered by this range AND either the + * configured + * cost has changed or the summarized cost has changed then redo + * summaries. + * Alternately, if there are no longer active prefixes and there are + * summary announcements, withdraw those announcements. + * + * The don't advertise code relies on the path.cost being set to UNSPEC + * to + * work the first time. Subsequent times the path.cost is not 0 anyway + * if there + * were active ranges. + */ + + if (ospf6_abr_range_summary_needs_update(range, cost)) { + for (ALL_LIST_ELEMENTS(ospf6->area_list, node, nnode, oa)) + summary_orig += + ospf6_abr_originate_summary_to_area(range, oa); + + if (CHECK_FLAG(range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY) + && summary_orig) { + if (!CHECK_FLAG(range->flag, + OSPF6_ROUTE_BLACKHOLE_ADDED)) { + if (IS_OSPF6_DEBUG_ABR) + zlog_debug("Add discard route"); + + ospf6_zebra_add_discard(range); + } + } else { + /* Summary removed or no summary generated as no + * specifics exist */ + if (CHECK_FLAG(range->flag, + OSPF6_ROUTE_BLACKHOLE_ADDED)) { + if (IS_OSPF6_DEBUG_ABR) + zlog_debug("Delete discard route"); + + ospf6_zebra_delete_discard(range); + } + } } - else - { - /* Summary removed or no summary generated as no specifics exist */ - if (CHECK_FLAG (range->flag, OSPF6_ROUTE_BLACKHOLE_ADDED)) - { - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Delete discard route"); - - ospf6_zebra_delete_discard (range); - } - } - } } -void -ospf6_abr_originate_summary (struct ospf6_route *route) +void ospf6_abr_originate_summary(struct ospf6_route *route) { - struct listnode *node, *nnode; - struct ospf6_area *oa; - struct ospf6_route *range = NULL; - - if (route->type == OSPF6_DEST_TYPE_NETWORK) - { - oa = ospf6_area_lookup (route->path.area_id, ospf6); - range = ospf6_route_lookup_bestmatch (&route->prefix, oa->range_table); - if (range) - { - ospf6_abr_range_update (range); + struct listnode *node, *nnode; + struct ospf6_area *oa; + struct ospf6_route *range = NULL; + + if (route->type == OSPF6_DEST_TYPE_NETWORK) { + oa = ospf6_area_lookup(route->path.area_id, ospf6); + range = ospf6_route_lookup_bestmatch(&route->prefix, + oa->range_table); + if (range) { + ospf6_abr_range_update(range); + } } - } - for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa)) - ospf6_abr_originate_summary_to_area (route, oa); + for (ALL_LIST_ELEMENTS(ospf6->area_list, node, nnode, oa)) + ospf6_abr_originate_summary_to_area(route, oa); } -void -ospf6_abr_defaults_to_stub (struct ospf6 *o) +void ospf6_abr_defaults_to_stub(struct ospf6 *o) { - struct listnode *node, *nnode; - struct ospf6_area *oa; - struct ospf6_route *def, *route; - - if (!o->backbone) - return; - - def = ospf6_route_create(); - def->type = OSPF6_DEST_TYPE_NETWORK; - def->prefix.family = AF_INET6; - def->prefix.prefixlen = 0; - memset (&def->prefix.u.prefix6, 0, sizeof(struct in6_addr)); - def->type = OSPF6_DEST_TYPE_NETWORK; - def->path.type = OSPF6_PATH_TYPE_INTER; - def->path.subtype = OSPF6_PATH_SUBTYPE_DEFAULT_RT; - def->path.area_id = o->backbone->area_id; - - for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa)) - { - if (!IS_AREA_STUB (oa)) - { - /* withdraw defaults when an area switches from stub to non-stub */ - route = ospf6_route_lookup (&def->prefix, oa->summary_prefix); - if (route && (route->path.subtype == def->path.subtype)) - { - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Withdrawing default route from non-stubby area %s", - oa->name); - SET_FLAG (def->flag, OSPF6_ROUTE_REMOVE); - ospf6_abr_originate_summary_to_area (def, oa); - } - } - else - { - /* announce defaults to stubby areas */ - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Announcing default route into stubby area %s", - oa->name); - UNSET_FLAG (def->flag, OSPF6_ROUTE_REMOVE); - ospf6_abr_originate_summary_to_area (def, oa); + struct listnode *node, *nnode; + struct ospf6_area *oa; + struct ospf6_route *def, *route; + + if (!o->backbone) + return; + + def = ospf6_route_create(); + def->type = OSPF6_DEST_TYPE_NETWORK; + def->prefix.family = AF_INET6; + def->prefix.prefixlen = 0; + memset(&def->prefix.u.prefix6, 0, sizeof(struct in6_addr)); + def->type = OSPF6_DEST_TYPE_NETWORK; + def->path.type = OSPF6_PATH_TYPE_INTER; + def->path.subtype = OSPF6_PATH_SUBTYPE_DEFAULT_RT; + def->path.area_id = o->backbone->area_id; + + for (ALL_LIST_ELEMENTS(ospf6->area_list, node, nnode, oa)) { + if (!IS_AREA_STUB(oa)) { + /* withdraw defaults when an area switches from stub to + * non-stub */ + route = ospf6_route_lookup(&def->prefix, + oa->summary_prefix); + if (route + && (route->path.subtype == def->path.subtype)) { + if (IS_OSPF6_DEBUG_ABR) + zlog_debug( + "Withdrawing default route from non-stubby area %s", + oa->name); + SET_FLAG(def->flag, OSPF6_ROUTE_REMOVE); + ospf6_abr_originate_summary_to_area(def, oa); + } + } else { + /* announce defaults to stubby areas */ + if (IS_OSPF6_DEBUG_ABR) + zlog_debug( + "Announcing default route into stubby area %s", + oa->name); + UNSET_FLAG(def->flag, OSPF6_ROUTE_REMOVE); + ospf6_abr_originate_summary_to_area(def, oa); + } } - } - ospf6_route_delete (def); + ospf6_route_delete(def); } /* RFC 2328 16.2. Calculating the inter-area routes */ -void -ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa) +void ospf6_abr_examin_summary(struct ospf6_lsa *lsa, struct ospf6_area *oa) { - struct prefix prefix, abr_prefix; - struct ospf6_route_table *table = NULL; - struct ospf6_route *range, *route, *old = NULL; - struct ospf6_route *abr_entry; - u_char type = 0; - char options[3] = {0, 0, 0}; - u_int8_t prefix_options = 0; - u_int32_t cost = 0; - u_char router_bits = 0; - char buf[PREFIX2STR_BUFFER]; - int is_debug = 0; - struct ospf6_inter_prefix_lsa *prefix_lsa = NULL; - struct ospf6_inter_router_lsa *router_lsa = NULL; - - memset (&prefix, 0, sizeof (prefix)); - - if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_PREFIX)) - { - if (IS_OSPF6_DEBUG_EXAMIN (INTER_PREFIX)) - { - is_debug++; - zlog_debug ("Examin %s in area %s", lsa->name, oa->name); - } - - prefix_lsa = (struct ospf6_inter_prefix_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); - prefix.family = AF_INET6; - prefix.prefixlen = prefix_lsa->prefix.prefix_length; - ospf6_prefix_in6_addr (&prefix.u.prefix6, &prefix_lsa->prefix); - if (is_debug) - prefix2str (&prefix, buf, sizeof (buf)); - table = oa->ospf6->route_table; - type = OSPF6_DEST_TYPE_NETWORK; - prefix_options = prefix_lsa->prefix.prefix_options; - cost = OSPF6_ABR_SUMMARY_METRIC (prefix_lsa); - } - else if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_ROUTER)) - { - if (IS_OSPF6_DEBUG_EXAMIN (INTER_ROUTER)) - { - is_debug++; - zlog_debug ("Examin %s in area %s", lsa->name, oa->name); - } - - router_lsa = (struct ospf6_inter_router_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); - ospf6_linkstate_prefix (router_lsa->router_id, htonl (0), &prefix); - if (is_debug) - inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf)); - - table = oa->ospf6->brouter_table; - type = OSPF6_DEST_TYPE_ROUTER; - options[0] = router_lsa->options[0]; - options[1] = router_lsa->options[1]; - options[2] = router_lsa->options[2]; - cost = OSPF6_ABR_SUMMARY_METRIC (router_lsa); - SET_FLAG (router_bits, OSPF6_ROUTER_BIT_E); - } - else - assert (0); - - /* Find existing route */ - route = ospf6_route_lookup (&prefix, table); - if (route) - ospf6_route_lock (route); - while (route && ospf6_route_is_prefix (&prefix, route)) - { - if (route->path.area_id == oa->area_id && - route->path.origin.type == lsa->header->type && - route->path.origin.id == lsa->header->id && - route->path.origin.adv_router == lsa->header->adv_router && - ! CHECK_FLAG (route->flag, OSPF6_ROUTE_WAS_REMOVED)) - old = route; - route = ospf6_route_next (route); - } - if (route) - ospf6_route_unlock (route); - - /* (1) if cost == LSInfinity or if the LSA is MaxAge */ - if (cost == OSPF_LS_INFINITY) - { - if (is_debug) - zlog_debug ("cost is LS_INFINITY, ignore"); - if (old) - ospf6_route_remove (old, table); - return; - } - if (OSPF6_LSA_IS_MAXAGE (lsa)) - { - if (is_debug) - zlog_debug ("LSA is MaxAge, ignore"); - if (old) - ospf6_route_remove (old, table); - return; - } - - /* (2) if the LSA is self-originated, ignore */ - if (lsa->header->adv_router == oa->ospf6->router_id) - { - if (is_debug) - zlog_debug ("LSA is self-originated, ignore"); - if (old) - ospf6_route_remove (old, table); - return; - } - - /* (3) if the prefix is equal to an active configured address range */ - /* or if the NU bit is set in the prefix */ - if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_PREFIX)) - { - range = ospf6_route_lookup (&prefix, oa->range_table); - if (range) - { - if (is_debug) - zlog_debug ("Prefix is equal to address range, ignore"); - if (old) - ospf6_route_remove (old, table); - return; - } - - if (CHECK_FLAG (prefix_lsa->prefix.prefix_options, - OSPF6_PREFIX_OPTION_NU) || - CHECK_FLAG (prefix_lsa->prefix.prefix_options, - OSPF6_PREFIX_OPTION_LA)) - { - if (is_debug) - zlog_debug ("Prefix has NU/LA bit set, ignore"); - if (old) - ospf6_route_remove (old, table); - return; + struct prefix prefix, abr_prefix; + struct ospf6_route_table *table = NULL; + struct ospf6_route *range, *route, *old = NULL; + struct ospf6_route *abr_entry; + u_char type = 0; + char options[3] = {0, 0, 0}; + u_int8_t prefix_options = 0; + u_int32_t cost = 0; + u_char router_bits = 0; + char buf[PREFIX2STR_BUFFER]; + int is_debug = 0; + struct ospf6_inter_prefix_lsa *prefix_lsa = NULL; + struct ospf6_inter_router_lsa *router_lsa = NULL; + + memset(&prefix, 0, sizeof(prefix)); + + if (lsa->header->type == htons(OSPF6_LSTYPE_INTER_PREFIX)) { + if (IS_OSPF6_DEBUG_EXAMIN(INTER_PREFIX)) { + is_debug++; + zlog_debug("Examin %s in area %s", lsa->name, oa->name); + } + + prefix_lsa = + (struct ospf6_inter_prefix_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); + prefix.family = AF_INET6; + prefix.prefixlen = prefix_lsa->prefix.prefix_length; + ospf6_prefix_in6_addr(&prefix.u.prefix6, &prefix_lsa->prefix); + if (is_debug) + prefix2str(&prefix, buf, sizeof(buf)); + table = oa->ospf6->route_table; + type = OSPF6_DEST_TYPE_NETWORK; + prefix_options = prefix_lsa->prefix.prefix_options; + cost = OSPF6_ABR_SUMMARY_METRIC(prefix_lsa); + } else if (lsa->header->type == htons(OSPF6_LSTYPE_INTER_ROUTER)) { + if (IS_OSPF6_DEBUG_EXAMIN(INTER_ROUTER)) { + is_debug++; + zlog_debug("Examin %s in area %s", lsa->name, oa->name); + } + + router_lsa = + (struct ospf6_inter_router_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); + ospf6_linkstate_prefix(router_lsa->router_id, htonl(0), + &prefix); + if (is_debug) + inet_ntop(AF_INET, &router_lsa->router_id, buf, + sizeof(buf)); + + table = oa->ospf6->brouter_table; + type = OSPF6_DEST_TYPE_ROUTER; + options[0] = router_lsa->options[0]; + options[1] = router_lsa->options[1]; + options[2] = router_lsa->options[2]; + cost = OSPF6_ABR_SUMMARY_METRIC(router_lsa); + SET_FLAG(router_bits, OSPF6_ROUTER_BIT_E); + } else + assert(0); + + /* Find existing route */ + route = ospf6_route_lookup(&prefix, table); + if (route) + ospf6_route_lock(route); + while (route && ospf6_route_is_prefix(&prefix, route)) { + if (route->path.area_id == oa->area_id + && route->path.origin.type == lsa->header->type + && route->path.origin.id == lsa->header->id + && route->path.origin.adv_router == lsa->header->adv_router + && !CHECK_FLAG(route->flag, OSPF6_ROUTE_WAS_REMOVED)) + old = route; + route = ospf6_route_next(route); + } + if (route) + ospf6_route_unlock(route); + + /* (1) if cost == LSInfinity or if the LSA is MaxAge */ + if (cost == OSPF_LS_INFINITY) { + if (is_debug) + zlog_debug("cost is LS_INFINITY, ignore"); + if (old) + ospf6_route_remove(old, table); + return; + } + if (OSPF6_LSA_IS_MAXAGE(lsa)) { + if (is_debug) + zlog_debug("LSA is MaxAge, ignore"); + if (old) + ospf6_route_remove(old, table); + return; + } + + /* (2) if the LSA is self-originated, ignore */ + if (lsa->header->adv_router == oa->ospf6->router_id) { + if (is_debug) + zlog_debug("LSA is self-originated, ignore"); + if (old) + ospf6_route_remove(old, table); + return; } - } - - if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_ROUTER)) - { - /* To pass test suites */ - if (! OSPF6_OPT_ISSET (router_lsa->options, OSPF6_OPT_R) || - ! OSPF6_OPT_ISSET (router_lsa->options, OSPF6_OPT_V6)) - { - if (is_debug) - zlog_debug ("Prefix has NU/LA bit set, ignore"); - if (old) - ospf6_route_remove (old, table); - - return; + + /* (3) if the prefix is equal to an active configured address range */ + /* or if the NU bit is set in the prefix */ + if (lsa->header->type == htons(OSPF6_LSTYPE_INTER_PREFIX)) { + range = ospf6_route_lookup(&prefix, oa->range_table); + if (range) { + if (is_debug) + zlog_debug( + "Prefix is equal to address range, ignore"); + if (old) + ospf6_route_remove(old, table); + return; + } + + if (CHECK_FLAG(prefix_lsa->prefix.prefix_options, + OSPF6_PREFIX_OPTION_NU) + || CHECK_FLAG(prefix_lsa->prefix.prefix_options, + OSPF6_PREFIX_OPTION_LA)) { + if (is_debug) + zlog_debug("Prefix has NU/LA bit set, ignore"); + if (old) + ospf6_route_remove(old, table); + return; + } } - /* Avoid infinite recursion if someone has maliciously announced an - Inter-Router LSA for an ABR - */ - if (lsa->header->adv_router == router_lsa->router_id) - { - if (is_debug) - zlog_debug ("Ignorning Inter-Router LSA for an ABR (%s)", - buf); - if (old) - ospf6_route_remove (old, table); - - return; + + if (lsa->header->type == htons(OSPF6_LSTYPE_INTER_ROUTER)) { + /* To pass test suites */ + if (!OSPF6_OPT_ISSET(router_lsa->options, OSPF6_OPT_R) + || !OSPF6_OPT_ISSET(router_lsa->options, OSPF6_OPT_V6)) { + if (is_debug) + zlog_debug("Prefix has NU/LA bit set, ignore"); + if (old) + ospf6_route_remove(old, table); + + return; + } + /* Avoid infinite recursion if someone has maliciously announced + an + Inter-Router LSA for an ABR + */ + if (lsa->header->adv_router == router_lsa->router_id) { + if (is_debug) + zlog_debug( + "Ignorning Inter-Router LSA for an ABR (%s)", + buf); + if (old) + ospf6_route_remove(old, table); + + return; + } + } + + /* (4) if the routing table entry for the ABR does not exist */ + ospf6_linkstate_prefix(lsa->header->adv_router, htonl(0), &abr_prefix); + abr_entry = ospf6_route_lookup(&abr_prefix, oa->ospf6->brouter_table); + if (abr_entry == NULL || abr_entry->path.area_id != oa->area_id + || CHECK_FLAG(abr_entry->flag, OSPF6_ROUTE_REMOVE) + || !CHECK_FLAG(abr_entry->path.router_bits, OSPF6_ROUTER_BIT_B)) { + if (is_debug) + zlog_debug("ABR router entry does not exist, ignore"); + if (old) + ospf6_route_remove(old, table); + return; + } + + /* Check import list */ + if (IMPORT_NAME(oa)) { + if (IMPORT_LIST(oa) == NULL) + IMPORT_LIST(oa) = + access_list_lookup(AFI_IP6, IMPORT_NAME(oa)); + + if (IMPORT_LIST(oa)) + if (access_list_apply(IMPORT_LIST(oa), &prefix) + == FILTER_DENY) { + if (is_debug) + zlog_debug( + "Prefix was denied by import-list"); + if (old) + ospf6_route_remove(old, table); + return; + } + } + + /* Check input prefix-list */ + if (PREFIX_NAME_IN(oa)) { + if (PREFIX_LIST_IN(oa) == NULL) + PREFIX_LIST_IN(oa) = + prefix_list_lookup(AFI_IP6, PREFIX_NAME_IN(oa)); + + if (PREFIX_LIST_IN(oa)) + if (prefix_list_apply(PREFIX_LIST_IN(oa), &prefix) + != PREFIX_PERMIT) { + if (is_debug) + zlog_debug( + "Prefix was denied by prefix-list"); + if (old) + ospf6_route_remove(old, table); + return; + } + } + + /* (5),(6): the path preference is handled by the sorting + in the routing table. Always install the path by substituting + old route (if any). */ + if (old) + route = ospf6_route_copy(old); + else + route = ospf6_route_create(); + + route->type = type; + route->prefix = prefix; + route->path.origin.type = lsa->header->type; + route->path.origin.id = lsa->header->id; + route->path.origin.adv_router = lsa->header->adv_router; + route->path.router_bits = router_bits; + route->path.options[0] = options[0]; + route->path.options[1] = options[1]; + route->path.options[2] = options[2]; + route->path.prefix_options = prefix_options; + route->path.area_id = oa->area_id; + route->path.type = OSPF6_PATH_TYPE_INTER; + route->path.cost = abr_entry->path.cost + cost; + + ospf6_route_copy_nexthops(route, abr_entry); + + /* (7) If the routes are identical, copy the next hops over to existing + route. ospf6's route table implementation will otherwise string both + routes, but keep the older one as the best route since the routes + are identical. + */ + old = ospf6_route_lookup(&prefix, table); + + if (old && (ospf6_route_cmp(route, old) == 0)) { + ospf6_route_merge_nexthops(old, route); + /* Update RIB/FIB */ + if (table->hook_add) + (*table->hook_add)(old); + + /* Delete new route */ + ospf6_route_delete(route); + } else { + if (is_debug) + zlog_debug("Install route: %s", buf); + /* ospf6_ia_add_nw_route (table, &prefix, route); */ + ospf6_route_add(route, table); } - } - - /* (4) if the routing table entry for the ABR does not exist */ - ospf6_linkstate_prefix (lsa->header->adv_router, htonl (0), &abr_prefix); - abr_entry = ospf6_route_lookup (&abr_prefix, oa->ospf6->brouter_table); - if (abr_entry == NULL || abr_entry->path.area_id != oa->area_id || - CHECK_FLAG (abr_entry->flag, OSPF6_ROUTE_REMOVE) || - ! CHECK_FLAG (abr_entry->path.router_bits, OSPF6_ROUTER_BIT_B)) - { - if (is_debug) - zlog_debug ("ABR router entry does not exist, ignore"); - if (old) - ospf6_route_remove (old, table); - return; - } - - /* Check import list */ - if (IMPORT_NAME (oa)) - { - if (IMPORT_LIST (oa) == NULL) - IMPORT_LIST (oa) = access_list_lookup (AFI_IP6, IMPORT_NAME (oa)); - - if (IMPORT_LIST (oa)) - if (access_list_apply (IMPORT_LIST (oa), &prefix) == FILTER_DENY) - { - if (is_debug) - zlog_debug ("Prefix was denied by import-list"); - if (old) - ospf6_route_remove (old, table); - return; - } - } - - /* Check input prefix-list */ - if (PREFIX_NAME_IN (oa)) - { - if (PREFIX_LIST_IN (oa) == NULL) - PREFIX_LIST_IN (oa) = prefix_list_lookup (AFI_IP6, PREFIX_NAME_IN (oa)); - - if (PREFIX_LIST_IN (oa)) - if (prefix_list_apply (PREFIX_LIST_IN (oa), &prefix) != PREFIX_PERMIT) - { - if (is_debug) - zlog_debug ("Prefix was denied by prefix-list"); - if (old) - ospf6_route_remove (old, table); - return; - } - } - - /* (5),(6): the path preference is handled by the sorting - in the routing table. Always install the path by substituting - old route (if any). */ - if (old) - route = ospf6_route_copy (old); - else - route = ospf6_route_create (); - - route->type = type; - route->prefix = prefix; - route->path.origin.type = lsa->header->type; - route->path.origin.id = lsa->header->id; - route->path.origin.adv_router = lsa->header->adv_router; - route->path.router_bits = router_bits; - route->path.options[0] = options[0]; - route->path.options[1] = options[1]; - route->path.options[2] = options[2]; - route->path.prefix_options = prefix_options; - route->path.area_id = oa->area_id; - route->path.type = OSPF6_PATH_TYPE_INTER; - route->path.cost = abr_entry->path.cost + cost; - - ospf6_route_copy_nexthops (route, abr_entry); - - /* (7) If the routes are identical, copy the next hops over to existing - route. ospf6's route table implementation will otherwise string both - routes, but keep the older one as the best route since the routes - are identical. - */ - old = ospf6_route_lookup (&prefix, table); - - if (old && (ospf6_route_cmp (route, old) == 0)) - { - ospf6_route_merge_nexthops (old, route); - /* Update RIB/FIB */ - if (table->hook_add) - (*table->hook_add) (old); - - /* Delete new route */ - ospf6_route_delete (route); - } - else - { - if (is_debug) - zlog_debug ("Install route: %s", buf); - /* ospf6_ia_add_nw_route (table, &prefix, route); */ - ospf6_route_add (route, table); - } } -void -ospf6_abr_examin_brouter (u_int32_t router_id) +void ospf6_abr_examin_brouter(u_int32_t router_id) { - struct ospf6_lsa *lsa; - struct ospf6_area *oa; - u_int16_t type; - - if (ospf6_is_router_abr (ospf6)) - oa = ospf6->backbone; - else - oa = listgetdata(listhead(ospf6->area_list)); - - /* - * It is possible to designate a non backbone - * area first. If that is the case safely - * fall out of this function. - */ - if (oa == NULL) - return; - - type = htons (OSPF6_LSTYPE_INTER_ROUTER); - for (ALL_LSDB_TYPED_ADVRTR(oa->lsdb, type, router_id, lsa)) - ospf6_abr_examin_summary (lsa, oa); - - type = htons (OSPF6_LSTYPE_INTER_PREFIX); - for (ALL_LSDB_TYPED_ADVRTR(oa->lsdb, type, router_id, lsa)) - ospf6_abr_examin_summary (lsa, oa); + struct ospf6_lsa *lsa; + struct ospf6_area *oa; + u_int16_t type; + + if (ospf6_is_router_abr(ospf6)) + oa = ospf6->backbone; + else + oa = listgetdata(listhead(ospf6->area_list)); + + /* + * It is possible to designate a non backbone + * area first. If that is the case safely + * fall out of this function. + */ + if (oa == NULL) + return; + + type = htons(OSPF6_LSTYPE_INTER_ROUTER); + for (ALL_LSDB_TYPED_ADVRTR(oa->lsdb, type, router_id, lsa)) + ospf6_abr_examin_summary(lsa, oa); + + type = htons(OSPF6_LSTYPE_INTER_PREFIX); + for (ALL_LSDB_TYPED_ADVRTR(oa->lsdb, type, router_id, lsa)) + ospf6_abr_examin_summary(lsa, oa); } -void -ospf6_abr_reimport (struct ospf6_area *oa) +void ospf6_abr_reimport(struct ospf6_area *oa) { - struct ospf6_lsa *lsa; - u_int16_t type; + struct ospf6_lsa *lsa; + u_int16_t type; - type = htons (OSPF6_LSTYPE_INTER_ROUTER); - for (ALL_LSDB_TYPED(oa->lsdb, type, lsa)) - ospf6_abr_examin_summary (lsa, oa); + type = htons(OSPF6_LSTYPE_INTER_ROUTER); + for (ALL_LSDB_TYPED(oa->lsdb, type, lsa)) + ospf6_abr_examin_summary(lsa, oa); - type = htons (OSPF6_LSTYPE_INTER_PREFIX); - for (ALL_LSDB_TYPED(oa->lsdb, type, lsa)) - ospf6_abr_examin_summary (lsa, oa); + type = htons(OSPF6_LSTYPE_INTER_PREFIX); + for (ALL_LSDB_TYPED(oa->lsdb, type, lsa)) + ospf6_abr_examin_summary(lsa, oa); } -void -ospf6_abr_prefix_resummarize (struct ospf6 *o) +void ospf6_abr_prefix_resummarize(struct ospf6 *o) { - struct ospf6_route *route; + struct ospf6_route *route; - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Re-examining Inter-Prefix Summaries"); + if (IS_OSPF6_DEBUG_ABR) + zlog_debug("Re-examining Inter-Prefix Summaries"); - for (route = ospf6_route_head (o->route_table); route; - route = ospf6_route_next (route)) - ospf6_abr_originate_summary(route); + for (route = ospf6_route_head(o->route_table); route; + route = ospf6_route_next(route)) + ospf6_abr_originate_summary(route); - if (IS_OSPF6_DEBUG_ABR) - zlog_debug ("Finished re-examining Inter-Prefix Summaries"); + if (IS_OSPF6_DEBUG_ABR) + zlog_debug("Finished re-examining Inter-Prefix Summaries"); } /* Display functions */ -static char * -ospf6_inter_area_prefix_lsa_get_prefix_str (struct ospf6_lsa *lsa, char *buf, - int buflen, int pos) +static char *ospf6_inter_area_prefix_lsa_get_prefix_str(struct ospf6_lsa *lsa, + char *buf, int buflen, + int pos) { - struct ospf6_inter_prefix_lsa *prefix_lsa; - struct in6_addr in6; - - if (lsa != NULL) - { - prefix_lsa = (struct ospf6_inter_prefix_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); - - ospf6_prefix_in6_addr (&in6, &prefix_lsa->prefix); - if (buf) - { - inet_ntop (AF_INET6, &in6, buf, buflen); - sprintf (&buf[strlen(buf)], "/%d", prefix_lsa->prefix.prefix_length); + struct ospf6_inter_prefix_lsa *prefix_lsa; + struct in6_addr in6; + + if (lsa != NULL) { + prefix_lsa = + (struct ospf6_inter_prefix_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); + + ospf6_prefix_in6_addr(&in6, &prefix_lsa->prefix); + if (buf) { + inet_ntop(AF_INET6, &in6, buf, buflen); + sprintf(&buf[strlen(buf)], "/%d", + prefix_lsa->prefix.prefix_length); + } } - } - return (buf); + return (buf); } -static int -ospf6_inter_area_prefix_lsa_show (struct vty *vty, struct ospf6_lsa *lsa) +static int ospf6_inter_area_prefix_lsa_show(struct vty *vty, + struct ospf6_lsa *lsa) { - struct ospf6_inter_prefix_lsa *prefix_lsa; - char buf[INET6_ADDRSTRLEN]; + struct ospf6_inter_prefix_lsa *prefix_lsa; + char buf[INET6_ADDRSTRLEN]; - prefix_lsa = (struct ospf6_inter_prefix_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); + prefix_lsa = (struct ospf6_inter_prefix_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); - vty_out (vty, " Metric: %lu\n", - (u_long) OSPF6_ABR_SUMMARY_METRIC (prefix_lsa)); + vty_out(vty, " Metric: %lu\n", + (u_long)OSPF6_ABR_SUMMARY_METRIC(prefix_lsa)); - ospf6_prefix_options_printbuf (prefix_lsa->prefix.prefix_options, - buf, sizeof (buf)); - vty_out (vty, " Prefix Options: %s\n", buf); + ospf6_prefix_options_printbuf(prefix_lsa->prefix.prefix_options, buf, + sizeof(buf)); + vty_out(vty, " Prefix Options: %s\n", buf); - vty_out (vty, " Prefix: %s\n", - ospf6_inter_area_prefix_lsa_get_prefix_str (lsa, buf, sizeof(buf), - 0)); + vty_out(vty, " Prefix: %s\n", + ospf6_inter_area_prefix_lsa_get_prefix_str(lsa, buf, + sizeof(buf), 0)); - return 0; + return 0; } -static char * -ospf6_inter_area_router_lsa_get_prefix_str (struct ospf6_lsa *lsa, char *buf, - int buflen, int pos) +static char *ospf6_inter_area_router_lsa_get_prefix_str(struct ospf6_lsa *lsa, + char *buf, int buflen, + int pos) { - struct ospf6_inter_router_lsa *router_lsa; + struct ospf6_inter_router_lsa *router_lsa; - if (lsa != NULL) - { - router_lsa = (struct ospf6_inter_router_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); + if (lsa != NULL) { + router_lsa = + (struct ospf6_inter_router_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); - if (buf) - inet_ntop (AF_INET, &router_lsa->router_id, buf, buflen); - } + if (buf) + inet_ntop(AF_INET, &router_lsa->router_id, buf, buflen); + } - return (buf); + return (buf); } -static int -ospf6_inter_area_router_lsa_show (struct vty *vty, struct ospf6_lsa *lsa) +static int ospf6_inter_area_router_lsa_show(struct vty *vty, + struct ospf6_lsa *lsa) { - struct ospf6_inter_router_lsa *router_lsa; - char buf[64]; + struct ospf6_inter_router_lsa *router_lsa; + char buf[64]; - router_lsa = (struct ospf6_inter_router_lsa *) - OSPF6_LSA_HEADER_END (lsa->header); + router_lsa = (struct ospf6_inter_router_lsa *)OSPF6_LSA_HEADER_END( + lsa->header); - ospf6_options_printbuf (router_lsa->options, buf, sizeof (buf)); - vty_out (vty, " Options: %s\n", buf); - vty_out (vty, " Metric: %lu\n", - (u_long) OSPF6_ABR_SUMMARY_METRIC (router_lsa)); + ospf6_options_printbuf(router_lsa->options, buf, sizeof(buf)); + vty_out(vty, " Options: %s\n", buf); + vty_out(vty, " Metric: %lu\n", + (u_long)OSPF6_ABR_SUMMARY_METRIC(router_lsa)); - inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf)); - vty_out (vty, " Destination Router ID: %s\n", buf); + inet_ntop(AF_INET, &router_lsa->router_id, buf, sizeof(buf)); + vty_out(vty, " Destination Router ID: %s\n", buf); - return 0; + return 0; } /* Debug commands */ @@ -1124,8 +1090,8 @@ DEFUN (debug_ospf6_abr, "Debug OSPFv3 ABR function\n" ) { - OSPF6_DEBUG_ABR_ON (); - return CMD_SUCCESS; + OSPF6_DEBUG_ABR_ON(); + return CMD_SUCCESS; } DEFUN (no_debug_ospf6_abr, @@ -1137,50 +1103,43 @@ DEFUN (no_debug_ospf6_abr, "Debug OSPFv3 ABR function\n" ) { - OSPF6_DEBUG_ABR_OFF (); - return CMD_SUCCESS; + OSPF6_DEBUG_ABR_OFF(); + return CMD_SUCCESS; } -int -config_write_ospf6_debug_abr (struct vty *vty) +int config_write_ospf6_debug_abr(struct vty *vty) { - if (IS_OSPF6_DEBUG_ABR) - vty_out (vty, "debug ospf6 abr\n"); - return 0; + if (IS_OSPF6_DEBUG_ABR) + vty_out(vty, "debug ospf6 abr\n"); + return 0; } -void -install_element_ospf6_debug_abr (void) +void install_element_ospf6_debug_abr(void) { - install_element (ENABLE_NODE, &debug_ospf6_abr_cmd); - install_element (ENABLE_NODE, &no_debug_ospf6_abr_cmd); - install_element (CONFIG_NODE, &debug_ospf6_abr_cmd); - install_element (CONFIG_NODE, &no_debug_ospf6_abr_cmd); + install_element(ENABLE_NODE, &debug_ospf6_abr_cmd); + install_element(ENABLE_NODE, &no_debug_ospf6_abr_cmd); + install_element(CONFIG_NODE, &debug_ospf6_abr_cmd); + install_element(CONFIG_NODE, &no_debug_ospf6_abr_cmd); } -struct ospf6_lsa_handler inter_prefix_handler = -{ - OSPF6_LSTYPE_INTER_PREFIX, - "Inter-Prefix", - "IAP", - ospf6_inter_area_prefix_lsa_show, - ospf6_inter_area_prefix_lsa_get_prefix_str, +struct ospf6_lsa_handler inter_prefix_handler = { + OSPF6_LSTYPE_INTER_PREFIX, + "Inter-Prefix", + "IAP", + ospf6_inter_area_prefix_lsa_show, + ospf6_inter_area_prefix_lsa_get_prefix_str, }; -struct ospf6_lsa_handler inter_router_handler = -{ - OSPF6_LSTYPE_INTER_ROUTER, - "Inter-Router", - "IAR", - ospf6_inter_area_router_lsa_show, - ospf6_inter_area_router_lsa_get_prefix_str, +struct ospf6_lsa_handler inter_router_handler = { + OSPF6_LSTYPE_INTER_ROUTER, + "Inter-Router", + "IAR", + ospf6_inter_area_router_lsa_show, + ospf6_inter_area_router_lsa_get_prefix_str, }; -void -ospf6_abr_init (void) +void ospf6_abr_init(void) { - ospf6_install_lsa_handler (&inter_prefix_handler); - ospf6_install_lsa_handler (&inter_router_handler); + ospf6_install_lsa_handler(&inter_prefix_handler); + ospf6_install_lsa_handler(&inter_router_handler); } - - |