/* * Copyright (C) 2003 Yasuhiro Ohara * * This file is part of GNU Zebra. * * GNU Zebra is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * GNU Zebra is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; see the file COPYING; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef OSPF6_TOP_H #define OSPF6_TOP_H #include "qobj.h" #include "routemap.h" struct ospf6_master { /* OSPFv3 instance. */ struct list *ospf6; /* OSPFv3 thread master. */ struct thread_master *master; }; /* ospf6->config_flags */ enum { OSPF6_LOG_ADJACENCY_CHANGES = (1 << 0), OSPF6_LOG_ADJACENCY_DETAIL = (1 << 1), OSPF6_SEND_EXTRA_DATA_TO_ZEBRA = (1 << 2), }; /* For processing route-map change update in the callback */ #define OSPF6_IS_RMAP_CHANGED 0x01 struct ospf6_redist { uint8_t instance; uint8_t flag; /* Redistribute metric info. */ struct { int type; /* External metric type (E1 or E2). */ int value; /* Value for static metric (24-bit). * -1 means metric value is not set. */ } dmetric; /* For redistribute route map. */ struct { char *name; struct route_map *map; } route_map; #define ROUTEMAP_NAME(R) (R->route_map.name) #define ROUTEMAP(R) (R->route_map.map) }; struct ospf6_gr_info { bool restart_support; bool restart_in_progress; bool prepare_in_progress; bool finishing_restart; uint32_t grace_period; struct thread *t_grace_period; }; struct ospf6_gr_helper { /* Graceful restart Helper supported configs*/ /* Supported grace interval*/ uint32_t supported_grace_time; /* Helper support * Supported : True * Not Supported : False. */ bool is_helper_supported; /* Support for strict LSA check. * if it is set,Helper aborted * upon a TOPO change. */ bool strict_lsa_check; /* Support as HELPER only for * planned restarts. */ bool only_planned_restart; /* This list contains the advertisement * routerids for which Helper support is * enabled. */ struct hash *enable_rtr_list; /* HELPER for number of active * RESTARTERs. */ int active_restarter_cnt; /* last HELPER exit reason */ uint32_t last_exit_reason; }; /* OSPFv3 top level data structure */ struct ospf6 { /* The relevant vrf_id */ vrf_id_t vrf_id; char *name; /* VRF name */ /* my router id */ in_addr_t router_id; /* static router id */ in_addr_t router_id_static; in_addr_t router_id_zebra; /* start time */ struct timeval starttime; /* list of areas */ struct list *area_list; struct ospf6_area *backbone; /* AS scope link state database */ struct ospf6_lsdb *lsdb; struct ospf6_lsdb *lsdb_self; struct ospf6_route_table *route_table; struct ospf6_route_table *brouter_table; struct ospf6_route_table *external_table; #define OSPF6_EXT_INIT_LS_ID 1 uint32_t external_id; /* OSPF6 redistribute configuration */ struct list *redist[ZEBRA_ROUTE_MAX + 1]; /* NSSA default-information-originate */ struct { /* # of NSSA areas requesting default information */ uint16_t refcnt; /* * Whether a default route known through non-OSPF protocol is * present in the RIB. */ bool status; } nssa_default_import_check; uint8_t flag; #define OSPF6_FLAG_ABR 0x04 #define OSPF6_FLAG_ASBR 0x08 int redistribute; /* Num of redistributed protocols. */ /* Configuration bitmask, refer to enum above */ uint8_t config_flags; int default_originate; /* Default information originate. */ #define DEFAULT_ORIGINATE_NONE 0 #define DEFAULT_ORIGINATE_ZEBRA 1 #define DEFAULT_ORIGINATE_ALWAYS 2 /* LSA timer parameters */ unsigned int lsa_minarrival; /* LSA minimum arrival in milliseconds. */ /* SPF parameters */ unsigned int spf_delay; /* SPF delay time. */ unsigned int spf_holdtime; /* SPF hold time. */ unsigned int spf_max_holdtime; /* SPF maximum-holdtime */ unsigned int spf_hold_multiplier; /* Adaptive multiplier for hold time */ unsigned int spf_reason; /* reason bits while scheduling SPF */ struct timeval ts_spf; /* SPF calculation time stamp. */ struct timeval ts_spf_duration; /* Execution time of last SPF */ unsigned int last_spf_reason; /* Last SPF reason */ int fd; /* Threads */ struct thread *t_spf_calc; /* SPF calculation timer. */ struct thread *t_ase_calc; /* ASE calculation timer. */ struct thread *maxage_remover; struct thread *t_distribute_update; /* Distirbute update timer. */ struct thread *t_ospf6_receive; /* OSPF6 receive timer */ struct thread *t_external_aggr; /* OSPF6 aggregation timer */ #define OSPF6_WRITE_INTERFACE_COUNT_DEFAULT 20 struct thread *t_write; int write_oi_count; /* Num of packets sent per thread invocation */ uint32_t ref_bandwidth; /* Distance parameters */ uint8_t distance_all; uint8_t distance_intra; uint8_t distance_inter; uint8_t distance_external; struct route_table *distance_table; /* Used during ospf instance going down send LSDB * update to neighbors immediatly */ uint8_t inst_shutdown; /* Max number of multiple paths * to support ECMP. */ uint16_t max_multipath; /* OSPF Graceful Restart info (restarting mode) */ struct ospf6_gr_info gr_info; /*ospf6 Graceful restart helper info */ struct ospf6_gr_helper ospf6_helper_cfg; /* Count of NSSA areas */ uint8_t anyNSSA; struct thread *t_abr_task; /* ABR task timer. */ struct list *oi_write_q; uint32_t redist_count; /* Action for aggregation of external LSAs */ int aggr_action; uint32_t seqnum_l; /* lower order Sequence Number */ uint32_t seqnum_h; /* higher order Sequence Number */ #define OSPF6_EXTL_AGGR_DEFAULT_DELAY 5 /* For ASBR summary delay timer */ uint16_t aggr_delay_interval; /* Table of configured Aggregate addresses */ struct route_table *rt_aggr_tbl; QOBJ_FIELDS; }; DECLARE_QOBJ_TYPE(ospf6); #define OSPF6_DISABLED 0x01 #define OSPF6_STUB_ROUTER 0x02 /* global pointer for OSPF top data structure */ extern struct ospf6 *ospf6; extern struct ospf6_master *om6; /* prototypes */ extern void ospf6_master_init(struct thread_master *master); extern void install_element_ospf6_clear_process(void); extern void ospf6_top_init(void); extern void ospf6_delete(struct ospf6 *o); extern bool ospf6_router_id_update(struct ospf6 *ospf6, bool init); void ospf6_restart_spf(struct ospf6 *ospf6); extern void ospf6_maxage_remove(struct ospf6 *o); extern struct ospf6 *ospf6_instance_create(const char *name); void ospf6_vrf_link(struct ospf6 *ospf6, struct vrf *vrf); void ospf6_vrf_unlink(struct ospf6 *ospf6, struct vrf *vrf); struct ospf6 *ospf6_lookup_by_vrf_id(vrf_id_t vrf_id); struct ospf6 *ospf6_lookup_by_vrf_name(const char *name); const char *ospf6_vrf_id_to_name(vrf_id_t vrf_id); void ospf6_vrf_init(void); bool ospf6_is_valid_summary_addr(struct vty *vty, struct prefix *p); #endif /* OSPF6_TOP_H */