ospfd.h

router source code for the ospdf.

  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 */