ospfd.h
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上传日期:2009-11-15
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- /*
- * OSPFd main header.
- * Copyright (C) 1998, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada
- *
- * 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 GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
- #ifndef _ZEBRA_OSPFD_H
- #define _ZEBRA_OSPFD_H
- #include "filter.h"
- #define OSPF_VERSION 2
- /* Default protocol, port number. */
- #ifndef IPPROTO_OSPFIGP
- #define IPPROTO_OSPFIGP 89
- #endif /* IPPROTO_OSPFIGP */
- /* IP precedence. */
- #ifndef IPTOS_PREC_INTERNETCONTROL
- #define IPTOS_PREC_INTERNETCONTROL 0xC0
- #endif /* IPTOS_PREC_INTERNETCONTROL */
- /* VTY port number. */
- #define OSPF_VTY_PORT 2604
- #define OSPF_VTYSH_PATH "/tmp/.ospfd"
- /* IP TTL for OSPF protocol. */
- #define OSPF_IP_TTL 1
- #define OSPF_VL_IP_TTL 100
- /* Default configuration file name for ospfd. */
- #define OSPF_DEFAULT_CONFIG "ospfd.conf"
- /* Architectual Constants */
- #ifdef DEBUG
- #define OSPF_LS_REFRESH_TIME 60
- #else
- #define OSPF_LS_REFRESH_TIME 1800
- #endif
- #define OSPF_MIN_LS_INTERVAL 5
- #define OSPF_MIN_LS_ARRIVAL 1
- #define OSPF_LSA_MAXAGE 3600
- #define OSPF_CHECK_AGE 300
- #define OSPF_LSA_MAXAGE_DIFF 900
- #define OSPF_LS_INFINITY 0xffffff
- #define OSPF_DEFAULT_DESTINATION 0x00000000 /* 0.0.0.0 */
- #define OSPF_INITIAL_SEQUENCE_NUMBER 0x80000001
- #define OSPF_MAX_SEQUENCE_NUMBER 0x7fffffff
- #define OSPF_LSA_MAXAGE_CHECK_INTERVAL 30
- #define OSPF_ALLSPFROUTERS 0xe0000005 /* 224.0.0.5 */
- #define OSPF_ALLDROUTERS 0xe0000006 /* 224.0.0.6 */
- #ifdef HAVE_NSSA
- #define OSPF_LOOPer 0x7f000000 /* 127.0.0.0 */
- #endif /* HAVE_NSSA */
- #define OSPF_AREA_BACKBONE 0x00000000 /* 0.0.0.0 */
- /* OSPF Authentication Type. */
- #define OSPF_AUTH_NULL 0
- #define OSPF_AUTH_SIMPLE 1
- #define OSPF_AUTH_CRYPTOGRAPHIC 2
- /* For Interface authentication setting default */
- #define OSPF_AUTH_NOTSET -1
- /* For the consumption and sanity of the command handler */
- /* DO NIOT REMOVE!!! Need to detect whether a value has
- been given or not in VLink command handlers */
- #define OSPF_AUTH_CMD_NOTSEEN -2
- /* OSPF SPF timer values. */
- #define OSPF_SPF_DELAY_DEFAULT 5
- #define OSPF_SPF_HOLDTIME_DEFAULT 10
- /* OSPF interface default values. */
- #define OSPF_OUTPUT_COST_DEFAULT 10
- #define OSPF_ROUTER_DEAD_INTERVAL_DEFAULT 40
- #define OSPF_HELLO_INTERVAL_DEFAULT 10
- #define OSPF_ROUTER_PRIORITY_DEFAULT 1
- #define OSPF_RETRANSMIT_INTERVAL_DEFAULT 5
- #define OSPF_TRANSMIT_DELAY_DEFAULT 1
- #define OSPF_DEFAULT_BANDWIDTH 10000 /* Kbps */
- #define OSPF_DEFAULT_REF_BANDWIDTH 100000 /* Kbps */
- #define OSPF_POLL_INTERVAL_DEFAULT 60
- #define OSPF_NEIGHBOR_PRIORITY_DEFAULT 0
- /* OSPF options. */
- #define OSPF_OPTION_T 0x01 /* TOS. */
- #define OSPF_OPTION_E 0x02
- #define OSPF_OPTION_MC 0x04
- #define OSPF_OPTION_NP 0x08
- #define OSPF_OPTION_EA 0x10
- #define OSPF_OPTION_DC 0x20
- #define OSPF_OPTION_O 0x40
- /* OSPF Database Description flags. */
- #define OSPF_DD_FLAG_MS 0x01
- #define OSPF_DD_FLAG_M 0x02
- #define OSPF_DD_FLAG_I 0x04
- #define OSPF_DD_FLAG_ALL 0x07
- /* Timer value. */
- #define OSPF_ROUTER_ID_UPDATE_DELAY 1
- #define OSPF_LS_REFRESH_SHIFT (60 * 15)
- #define OSPF_LS_REFRESH_JITTER 60
- /* OSPF master for system wide configuration and variables. */
- struct ospf_master
- {
- /* OSPF instance. */
- struct list *ospf;
- /* OSPF thread master. */
- struct thread_master *master;
- /* Zebra interface list. */
- struct list *iflist;
- /* Redistributed external information. */
- struct route_table *external_info[ZEBRA_ROUTE_MAX + 1];
- #define EXTERNAL_INFO(T) om->external_info[T]
- /* OSPF start time. */
- time_t start_time;
- /* Various OSPF global configuration. */
- u_char options;
- };
- /* OSPF instance structure. */
- struct ospf
- {
- /* OSPF Router ID. */
- struct in_addr router_id; /* Configured automatically. */
- struct in_addr router_id_static; /* Configured manually. */
- /* ABR/ASBR internal flags. */
- u_char flags;
- #define OSPF_FLAG_ABR 0x0001
- #define OSPF_FLAG_ASBR 0x0002
- /* ABR type. */
- u_char abr_type;
- #define OSPF_ABR_UNKNOWN 0
- #define OSPF_ABR_STAND 1
- #define OSPF_ABR_IBM 2
- #define OSPF_ABR_CISCO 3
- #define OSPF_ABR_SHORTCUT 4
- /* NSSA ABR */
- u_char anyNSSA; /* Bump for every NSSA attached. */
- /* Configured variables. */
- u_char config;
- #define OSPF_RFC1583_COMPATIBLE (1 << 0)
- #define OSPF_OPAQUE_CAPABLE (1 << 2)
- #ifdef HAVE_OPAQUE_LSA
- /* Opaque-LSA administrative flags. */
- u_char opaque;
- #define OPAQUE_OPERATION_READY_BIT (1 << 0)
- #define OPAQUE_BLOCK_TYPE_09_LSA_BIT (1 << 1)
- #define OPAQUE_BLOCK_TYPE_10_LSA_BIT (1 << 2)
- #define OPAQUE_BLOCK_TYPE_11_LSA_BIT (1 << 3)
- #endif /* HAVE_OPAQUE_LSA */
- int spf_delay; /* SPF delay time. */
- int spf_holdtime; /* SPF hold time. */
- int default_originate; /* Default information originate. */
- #define DEFAULT_ORIGINATE_NONE 0
- #define DEFAULT_ORIGINATE_ZEBRA 1
- #define DEFAULT_ORIGINATE_ALWAYS 2
- u_int32_t ref_bandwidth; /* Reference Bandwidth (Kbps). */
- struct route_table *networks; /* OSPF config networks. */
- list vlinks; /* Configured Virtual-Links. */
- list areas; /* OSPF areas. */
- struct route_table *nbr_nbma;
- struct ospf_area *backbone; /* Pointer to the Backbone Area. */
- list oiflist; /* ospf interfaces */
- /* LSDB of AS-external-LSAs. */
- struct ospf_lsdb *lsdb;
-
- /* Flags. */
- int external_origin; /* AS-external-LSA origin flag. */
- int ase_calc; /* ASE calculation flag. */
- #ifdef HAVE_OPAQUE_LSA
- list opaque_lsa_self; /* Type-11 Opaque-LSAs */
- #endif /* HAVE_OPAQUE_LSA */
- /* Routing tables. */
- struct route_table *old_table; /* Old routing table. */
- struct route_table *new_table; /* Current routing table. */
- struct route_table *old_rtrs; /* Old ABR/ASBR RT. */
- struct route_table *new_rtrs; /* New ABR/ASBR RT. */
- struct route_table *new_external_route; /* New External Route. */
- struct route_table *old_external_route; /* Old External Route. */
-
- struct route_table *external_lsas; /* Database of external LSAs,
- prefix is LSA's adv. network*/
- /* Time stamps. */
- time_t ts_spf; /* SPF calculation time stamp. */
- list maxage_lsa; /* List of MaxAge LSA for deletion. */
- int redistribute; /* Num of redistributed protocols. */
- /* Threads. */
- struct thread *t_router_id_update; /* Router ID update timer. */
- struct thread *t_router_lsa_update; /* router-LSA update timer. */
- struct thread *t_abr_task; /* ABR task timer. */
- struct thread *t_asbr_check; /* ASBR check timer. */
- struct thread *t_distribute_update; /* Distirbute list update timer. */
- struct thread *t_spf_calc; /* SPF calculation timer. */
- struct thread *t_ase_calc; /* ASE calculation timer. */
- struct thread *t_external_lsa; /* AS-external-LSA origin timer. */
- #ifdef HAVE_OPAQUE_LSA
- struct thread *t_opaque_lsa_self; /* Type-11 Opaque-LSAs origin event. */
- #endif /* HAVE_OPAQUE_LSA */
- struct thread *t_maxage; /* MaxAge LSA remover timer. */
- struct thread *t_maxage_walker; /* MaxAge LSA checking timer. */
- struct thread *t_write;
- struct thread *t_read;
- int fd;
- list oi_write_q;
-
- /* Distribute lists out of other route sources. */
- struct
- {
- char *name;
- struct access_list *list;
- } dlist[ZEBRA_ROUTE_MAX];
- #define DISTRIBUTE_NAME(O,T) (O)->dlist[T].name
- #define DISTRIBUTE_LIST(O,T) (O)->dlist[T].list
- /* 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 [ZEBRA_ROUTE_MAX + 1];
- /* For redistribute route map. */
- struct
- {
- char *name;
- struct route_map *map;
- } route_map [ZEBRA_ROUTE_MAX + 1]; /* +1 is for default-information */
- #define ROUTEMAP_NAME(O,T) (O)->route_map[T].name
- #define ROUTEMAP(O,T) (O)->route_map[T].map
-
- int default_metric; /* Default metric for redistribute. */
- #define OSPF_LSA_REFRESHER_GRANULARITY 10
- #define OSPF_LSA_REFRESHER_SLOTS ((OSPF_LS_REFRESH_TIME +
- OSPF_LS_REFRESH_SHIFT)/10 + 1)
- struct
- {
- u_int16_t index;
- list qs[OSPF_LSA_REFRESHER_SLOTS];
- } lsa_refresh_queue;
-
- struct thread *t_lsa_refresher;
- time_t lsa_refresher_started;
- #define OSPF_LSA_REFRESH_INTERVAL_DEFAULT 10
- u_int16_t lsa_refresh_interval;
-
- /* Distance parameter. */
- u_char distance_all;
- u_char distance_intra;
- u_char distance_inter;
- u_char distance_external;
- /* Statistics for LSA origination. */
- u_int32_t lsa_originate_count;
- /* Statistics for LSA used for new instantiation. */
- u_int32_t rx_lsa_count;
-
- struct route_table *distance_table;
- };
- /* OSPF area structure. */
- struct ospf_area
- {
- /* OSPF instance. */
- struct ospf *ospf;
- /* Zebra interface list belonging to the area. */
- list oiflist;
- /* Area ID. */
- struct in_addr area_id;
- /* Area ID format. */
- char format;
- #define OSPF_AREA_ID_FORMAT_ADDRESS 1
- #define OSPF_AREA_ID_FORMAT_DECIMAL 2
- /* Address range. */
- list address_range;
- /* Configured variables. */
- int external_routing; /* ExternalRoutingCapability. */
- #define OSPF_AREA_DEFAULT 0
- #define OSPF_AREA_STUB 1
- #define OSPF_AREA_NSSA 2
- #define OSPF_AREA_TYPE_MAX 3
- int no_summary; /* Don't inject summaries into stub.*/
- int shortcut_configured; /* Area configured as shortcut. */
- #define OSPF_SHORTCUT_DEFAULT 0
- #define OSPF_SHORTCUT_ENABLE 1
- #define OSPF_SHORTCUT_DISABLE 2
- int shortcut_capability; /* Other ABRs agree on S-bit */
- u_int32_t default_cost; /* StubDefaultCost. */
- int auth_type; /* Authentication type. */
- u_char NSSATranslatorRole; /* NSSA Role during configuration */
- #define OSPF_NSSA_ROLE_NEVER 0
- #define OSPF_NSSA_ROLE_ALWAYS 1
- #define OSPF_NSSA_ROLE_CANDIDATE 2
- u_char NSSATranslator; /* NSSA Role after election process */
- u_char transit; /* TransitCapability. */
- #define OSPF_TRANSIT_FALSE 0
- #define OSPF_TRANSIT_TRUE 1
- struct route_table *ranges; /* Configured Area Ranges. */
- /* Area related LSDBs[Type1-4]. */
- struct ospf_lsdb *lsdb;
- /* Self-originated LSAs. */
- struct ospf_lsa *router_lsa_self;
- #ifdef HAVE_OPAQUE_LSA
- list opaque_lsa_self; /* Type-10 Opaque-LSAs */
- #endif /* HAVE_OPAQUE_LSA */
- /* Area announce list. */
- struct
- {
- char *name;
- struct access_list *list;
- } export;
- #define EXPORT_NAME(A) (A)->export.name
- #define EXPORT_LIST(A) (A)->export.list
- /* Area acceptance list. */
- struct
- {
- char *name;
- struct access_list *list;
- } import;
- #define IMPORT_NAME(A) (A)->import.name
- #define IMPORT_LIST(A) (A)->import.list
- /* Type 3 LSA Area prefix-list. */
- struct
- {
- char *name;
- struct prefix_list *list;
- } plist_in;
- #define PREFIX_LIST_IN(A) (A)->plist_in.list
- #define PREFIX_NAME_IN(A) (A)->plist_in.name
- struct
- {
- char *name;
- struct prefix_list *list;
- } plist_out;
- #define PREFIX_LIST_OUT(A) (A)->plist_out.list
- #define PREFIX_NAME_OUT(A) (A)->plist_out.name
- /* Shortest Path Tree. */
- struct vertex *spf;
- /* Threads. */
- struct thread *t_router_lsa_self;/* Self-originated router-LSA timer. */
- #ifdef HAVE_OPAQUE_LSA
- struct thread *t_opaque_lsa_self; /* Type-10 Opaque-LSAs origin. */
- #endif /* HAVE_OPAQUE_LSA */
- /* Statistics field. */
- u_int32_t spf_calculation; /* SPF Calculation Count. */
- /* Router count. */
- u_int32_t abr_count; /* ABR router in this area. */
- u_int32_t asbr_count; /* ASBR router in this area. */
- /* Counters. */
- u_int32_t act_ints; /* Active interfaces. */
- u_int32_t full_nbrs; /* Fully adjacent neighbors. */
- u_int32_t full_vls; /* Fully adjacent virtual neighbors. */
- };
- /* OSPF config network structure. */
- struct ospf_network
- {
- /* Area ID. */
- struct in_addr area_id;
- int format;
- };
- /* OSPF NBMA neighbor structure. */
- struct ospf_nbr_nbma
- {
- /* Neighbor IP address. */
- struct in_addr addr;
- /* OSPF interface. */
- struct ospf_interface *oi;
- /* OSPF neighbor structure. */
- struct ospf_neighbor *nbr;
- /* Neighbor priority. */
- u_char priority;
- /* Poll timer value. */
- u_int32_t v_poll;
- /* Poll timer thread. */
- struct thread *t_poll;
- /* State change. */
- u_int32_t state_change;
- };
- /* Macro. */
- #define OSPF_AREA_SAME(X,Y)
- (memcmp ((X->area_id), (Y->area_id), IPV4_MAX_BYTELEN) == 0)
- #define IS_OSPF_ABR(O) ((O)->flags & OSPF_FLAG_ABR)
- #define IS_OSPF_ASBR(O) ((O)->flags & OSPF_FLAG_ASBR)
- #define OSPF_IS_AREA_ID_BACKBONE(I) ((I).s_addr == OSPF_AREA_BACKBONE)
- #define OSPF_IS_AREA_BACKBONE(A) OSPF_IS_AREA_ID_BACKBONE ((A)->area_id)
- #ifdef roundup
- # define ROUNDUP(val, gran) roundup(val, gran)
- #else /* roundup */
- # define ROUNDUP(val, gran) (((val) - 1 | (gran) - 1) + 1)
- #endif /* roundup */
- #define LSA_OPTIONS_GET(area)
- (((area)->external_routing == OSPF_AREA_DEFAULT) ? OSPF_OPTION_E : 0)
- #ifdef HAVE_NSSA
- #define LSA_NSSA_GET(area)
- (((area)->external_routing == OSPF_AREA_NSSA) ?
- (area)->NSSATranslator : 0)
- #endif /* HAVE_NSSA */
- #define OSPF_TIMER_ON(T,F,V)
- do {
- if (!(T))
- (T) = thread_add_timer (master, (F), ospf, (V));
- } while (0)
- #define OSPF_AREA_TIMER_ON(T,F,V)
- do {
- if (!(T))
- (T) = thread_add_timer (master, (F), area, (V));
- } while (0)
- #define OSPF_POLL_TIMER_ON(T,F,V)
- do {
- if (!(T))
- (T) = thread_add_timer (master, (F), nbr_nbma, (V));
- } while (0)
- #define OSPF_POLL_TIMER_OFF(X) OSPF_TIMER_OFF((X))
- #define OSPF_TIMER_OFF(X)
- do {
- if (X)
- {
- thread_cancel (X);
- (X) = NULL;
- }
- } while (0)
- /* Extern variables. */
- extern struct ospf_master *om;
- extern struct message ospf_ism_state_msg[];
- extern struct message ospf_nsm_state_msg[];
- extern struct message ospf_lsa_type_msg[];
- extern struct message ospf_link_state_id_type_msg[];
- extern struct message ospf_redistributed_proto[];
- extern struct message ospf_network_type_msg[];
- extern int ospf_ism_state_msg_max;
- extern int ospf_nsm_state_msg_max;
- extern int ospf_lsa_type_msg_max;
- extern int ospf_link_state_id_type_msg_max;
- extern int ospf_redistributed_proto_max;
- extern int ospf_network_type_msg_max;
- extern struct zclient *zclient;
- extern struct thread_master *master;
- extern int ospf_zlog;
- /* Prototypes. */
- struct ospf *ospf_lookup ();
- struct ospf *ospf_get ();
- void ospf_finish (struct ospf *);
- int ospf_router_id_update_timer (struct thread *);
- void ospf_router_id_update ();
- int ospf_network_set (struct ospf *, struct prefix_ipv4 *, struct in_addr);
- int ospf_network_unset (struct ospf *, struct prefix_ipv4 *, struct in_addr);
- int ospf_area_stub_set (struct ospf *, struct in_addr);
- int ospf_area_stub_unset (struct ospf *, struct in_addr);
- int ospf_area_no_summary_set (struct ospf *, struct in_addr);
- int ospf_area_no_summary_unset (struct ospf *, struct in_addr);
- int ospf_area_nssa_set (struct ospf *, struct in_addr);
- int ospf_area_nssa_unset (struct ospf *, struct in_addr);
- int ospf_area_nssa_translator_role_set (struct ospf *, struct in_addr, int);
- int ospf_area_export_list_set (struct ospf *, struct ospf_area *, char *);
- int ospf_area_export_list_unset (struct ospf *, struct ospf_area *);
- int ospf_area_import_list_set (struct ospf *, struct ospf_area *, char *);
- int ospf_area_import_list_unset (struct ospf *, struct ospf_area *);
- int ospf_area_shortcut_set (struct ospf *, struct ospf_area *, int);
- int ospf_area_shortcut_unset (struct ospf *, struct ospf_area *);
- int ospf_timers_spf_set (struct ospf *, u_int32_t, u_int32_t);
- int ospf_timers_spf_unset (struct ospf *);
- int ospf_timers_refresh_set (struct ospf *, int);
- int ospf_timers_refresh_unset (struct ospf *);
- int ospf_nbr_nbma_set (struct ospf *, struct in_addr);
- int ospf_nbr_nbma_unset (struct ospf *, struct in_addr);
- int ospf_nbr_nbma_priority_set (struct ospf *, struct in_addr, u_char);
- int ospf_nbr_nbma_priority_unset (struct ospf *, struct in_addr);
- int ospf_nbr_nbma_poll_interval_set (struct ospf *, struct in_addr, int);
- int ospf_nbr_nbma_poll_interval_unset (struct ospf *, struct in_addr);
- void ospf_prefix_list_update (struct prefix_list *);
- void ospf_init ();
- void ospf_if_update (struct ospf *);
- void ospf_ls_upd_queue_empty (struct ospf_interface *);
- void ospf_terminate ();
- void ospf_nbr_nbma_if_update (struct ospf *, struct ospf_interface *);
- struct ospf_nbr_nbma *ospf_nbr_nbma_lookup (struct ospf *, struct in_addr);
- struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next (struct ospf *,
- struct in_addr *, int);
- int ospf_oi_count (struct interface *);
- struct ospf_area *ospf_area_get (struct ospf *, struct in_addr, int);
- void ospf_area_check_free (struct ospf *, struct in_addr);
- struct ospf_area *ospf_area_lookup_by_area_id (struct ospf *, struct in_addr);
- void ospf_area_add_if (struct ospf_area *, struct ospf_interface *);
- void ospf_area_del_if (struct ospf_area *, struct ospf_interface *);
- void ospf_route_map_init ();
- void ospf_snmp_init ();
- void ospf_master_init ();
- #endif /* _ZEBRA_OSPFD_H */