ospf_interface.h
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上传日期:2009-11-15
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- /*
- * OSPF Interface functions.
- * Copyright (C) 1999 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_OSPF_INTERFACE_H
- #define _ZEBRA_OSPF_INTERFACE_H
- #define OSPF_AUTH_SIMPLE_SIZE 8
- #define OSPF_AUTH_MD5_SIZE 16
- #define IF_OSPF_IF_INFO(I) ((struct ospf_if_info *)((I)->info))
- #define IF_DEF_PARAMS(I) (IF_OSPF_IF_INFO (I)->def_params)
- #define IF_OIFS(I) (IF_OSPF_IF_INFO (I)->oifs)
- #define IF_OIFS_PARAMS(I) (IF_OSPF_IF_INFO (I)->params)
-
- #define OSPF_IF_PARAM_CONFIGURED(S, P) ((S) && (S)->P##__config)
- #define OSPF_IF_PARAM(O, P)
- (OSPF_IF_PARAM_CONFIGURED ((O)->params, P)?
- (O)->params->P:IF_DEF_PARAMS((O)->ifp)->P)
- #define DECLARE_IF_PARAM(T, P) T P; u_char P##__config:1
- #define UNSET_IF_PARAM(S, P) ((S)->P##__config) = 0
- #define SET_IF_PARAM(S, P) ((S)->P##__config) = 1
- struct ospf_if_params
- {
- DECLARE_IF_PARAM (u_int32_t, transmit_delay); /* Interface Transmisson Delay */
- DECLARE_IF_PARAM (u_int32_t, output_cost_cmd);/* Command Interface Output Cost */
- DECLARE_IF_PARAM (u_int32_t, retransmit_interval); /* Retransmission Interval */
- DECLARE_IF_PARAM (u_char, passive_interface); /* OSPF Interface is passive */
- DECLARE_IF_PARAM (u_char, priority); /* OSPF Interface priority */
- DECLARE_IF_PARAM (u_char, type); /* type of interface */
- #define OSPF_IF_ACTIVE 0
- #define OSPF_IF_PASSIVE 1
-
- DECLARE_IF_PARAM (u_int32_t, v_hello); /* Hello Interval */
- DECLARE_IF_PARAM (u_int32_t, v_wait); /* Router Dead Interval */
- /* Authentication data. */
- u_char auth_simple[OSPF_AUTH_SIMPLE_SIZE + 1]; /* Simple password. */
- u_char auth_simple__config:1;
-
- DECLARE_IF_PARAM (list, auth_crypt); /* List of Auth cryptographic data. */
- DECLARE_IF_PARAM (int, auth_type); /* OSPF authentication type */
- };
- struct ospf_if_info
- {
- struct ospf_if_params *def_params;
- struct route_table *params;
- struct route_table *oifs;
- };
- struct ospf_interface;
- struct ospf_vl_data
- {
- struct in_addr vl_peer; /* Router-ID of the peer for VLs. */
- struct in_addr vl_area_id; /* Transit area for this VL. */
- int format; /* area ID format */
- struct ospf_interface *vl_oi; /* Interface data structure for the VL. */
- struct ospf_interface *out_oi; /* The interface to go out. */
- struct in_addr peer_addr; /* Address used to reach the peer. */
- u_char flags;
- };
- #define OSPF_VL_MAX_COUNT 256
- #define OSPF_VL_MTU 1500
- #define OSPF_VL_FLAG_APPROVED 0x01
- struct crypt_key
- {
- u_char key_id;
- u_char auth_key[OSPF_AUTH_MD5_SIZE + 1];
- };
- /* OSPF interface structure. */
- struct ospf_interface
- {
- /* This interface's parent ospf instance. */
- struct ospf *ospf;
- /* OSPF Area. */
- struct ospf_area *area;
- /* Interface data from zebra. */
- struct interface *ifp;
- struct ospf_vl_data *vl_data; /* Data for Virtual Link */
-
- /* Packet send buffer. */
- struct ospf_fifo *obuf; /* Output queue */
- /* OSPF Network Type. */
- u_char type;
- #define OSPF_IFTYPE_NONE 0
- #define OSPF_IFTYPE_POINTOPOINT 1
- #define OSPF_IFTYPE_BROADCAST 2
- #define OSPF_IFTYPE_NBMA 3
- #define OSPF_IFTYPE_POINTOMULTIPOINT 4
- #define OSPF_IFTYPE_VIRTUALLINK 5
- #define OSPF_IFTYPE_LOOPBACK 6
- #define OSPF_IFTYPE_MAX 7
- /* State of Interface State Machine. */
- u_char state;
- struct prefix *address; /* Interface prefix */
- struct connected *connected; /* Pointer to connected */
- /* Configured varables. */
- struct ospf_if_params *params;
- u_int32_t crypt_seqnum; /* Cryptographic Sequence Number */
- u_int32_t output_cost; /* Acutual Interface Output Cost */
- /* Neighbor information. */
- struct route_table *nbrs; /* OSPF Neighbor List */
- struct ospf_neighbor *nbr_self; /* Neighbor Self */
- #define DR(I) ((I)->nbr_self->d_router)
- #define BDR(I) ((I)->nbr_self->bd_router)
- #define OPTIONS(I) ((I)->nbr_self->options)
- #define PRIORITY(I) ((I)->nbr_self->priority)
- /* List of configured NBMA neighbor. */
- list nbr_nbma;
- /* self-originated LSAs. */
- struct ospf_lsa *network_lsa_self; /* network-LSA. */
- #ifdef HAVE_OPAQUE_LSA
- list opaque_lsa_self; /* Type-9 Opaque-LSAs */
- #endif /* HAVE_OPAQUE_LSA */
- struct route_table *ls_upd_queue;
- list ls_ack; /* Link State Acknowledgment list. */
-
- struct
- {
- list ls_ack;
- struct in_addr dst;
- } ls_ack_direct;
- /* Timer values. */
- u_int32_t v_ls_ack; /* Delayed Link State Acknowledgment */
- /* Threads. */
- struct thread *t_hello; /* timer */
- struct thread *t_wait; /* timer */
- struct thread *t_ls_ack; /* timer */
- struct thread *t_ls_ack_direct; /* event */
- struct thread *t_ls_upd_event; /* event */
- struct thread *t_network_lsa_self; /* self-originated network-LSA
- reflesh thread. timer */
- #ifdef HAVE_OPAQUE_LSA
- struct thread *t_opaque_lsa_self; /* Type-9 Opaque-LSAs */
- #endif /* HAVE_OPAQUE_LSA */
- int on_write_q;
-
- /* Statistics fields. */
- u_int32_t hello_in; /* Hello message input count. */
- u_int32_t hello_out; /* Hello message output count. */
- u_int32_t db_desc_in; /* database desc. message input count. */
- u_int32_t db_desc_out; /* database desc. message output count. */
- u_int32_t ls_req_in; /* LS request message input count. */
- u_int32_t ls_req_out; /* LS request message output count. */
- u_int32_t ls_upd_in; /* LS update message input count. */
- u_int32_t ls_upd_out; /* LS update message output count. */
- u_int32_t ls_ack_in; /* LS Ack message input count. */
- u_int32_t ls_ack_out; /* LS Ack message output count. */
- u_int32_t discarded; /* discarded input count by error. */
- u_int32_t state_change; /* Number of status change. */
- u_int32_t full_nbrs;
- };
- /* Prototypes. */
- char *ospf_if_name (struct ospf_interface *);
- struct ospf_interface *ospf_if_new (struct ospf *, struct interface *,
- struct prefix *);
- void ospf_if_cleanup (struct ospf_interface *);
- void ospf_if_free (struct ospf_interface *);
- int ospf_if_up (struct ospf_interface *);
- int ospf_if_down (struct ospf_interface *);
- int ospf_if_is_up (struct ospf_interface *);
- struct ospf_interface *ospf_if_lookup_by_name (char *);
- struct ospf_interface *ospf_if_lookup_by_local_addr (struct ospf *,
- struct interface *,
- struct in_addr);
- struct ospf_interface *ospf_if_lookup_by_prefix (struct ospf *,
- struct prefix_ipv4 *);
- struct ospf_interface *ospf_if_addr_local (struct in_addr);
- struct ospf_interface *ospf_if_lookup_recv_if (struct ospf *, struct in_addr);
- struct ospf_interface *ospf_if_is_configured (struct ospf *, struct in_addr *);
- struct ospf_if_params *ospf_lookup_if_params (struct interface *,
- struct in_addr);
- struct ospf_if_params *ospf_get_if_params (struct interface *, struct in_addr);
- void ospf_del_if_params (struct ospf_if_params *);
- void ospf_free_if_params (struct interface *, struct in_addr);
- void ospf_if_update_params (struct interface *, struct in_addr);
- int ospf_if_new_hook (struct interface *);
- void ospf_if_init ();
- void ospf_if_stream_set (struct ospf_interface *);
- void ospf_if_stream_unset (struct ospf_interface *);
- void ospf_if_reset_variables (struct ospf_interface *);
- int ospf_if_is_enable (struct ospf_interface *);
- int ospf_if_get_output_cost (struct ospf_interface *);
- void ospf_if_recalculate_output_cost (struct interface *);
- struct ospf_interface *ospf_vl_new (struct ospf *, struct ospf_vl_data *);
- struct ospf_vl_data *ospf_vl_data_new (struct ospf_area *, struct in_addr);
- struct ospf_vl_data *ospf_vl_lookup (struct ospf_area *, struct in_addr);
- void ospf_vl_data_free (struct ospf_vl_data *);
- void ospf_vl_add (struct ospf *, struct ospf_vl_data *);
- void ospf_vl_delete (struct ospf *, struct ospf_vl_data *);
- void ospf_vl_up_check (struct ospf_area *, struct in_addr, struct vertex *);
- void ospf_vl_unapprove (struct ospf *);
- void ospf_vl_shut_unapproved (struct ospf *);
- int ospf_full_virtual_nbrs (struct ospf_area *);
- int ospf_vls_in_area (struct ospf_area *);
- struct crypt_key *ospf_crypt_key_lookup (list, u_char);
- struct crypt_key *ospf_crypt_key_new ();
- void ospf_crypt_key_add (list, struct crypt_key *);
- int ospf_crypt_key_delete (list, u_char);
- #endif /* _ZEBRA_OSPF_INTERFACE_H */