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- /*
- * IS-IS Rout(e)ing protocol - isis_circuit.h
- *
- * Copyright (C) 2001,2002 Sampo Saaristo
- * Tampere University of Technology
- * Institute of Communications Engineering
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public Licenseas published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program 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; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #ifndef ISIS_CIRCUIT_H
- #define ISIS_CIRCUIT_H
- #include "vty.h"
- #include "if.h"
- #include "isis_constants.h"
- #include "isis_common.h"
- #define CIRCUIT_MAX 255
- struct password
- {
- struct password *next;
- int len;
- u_char *pass;
- };
- struct metric
- {
- u_char metric_default;
- u_char metric_error;
- u_char metric_expense;
- u_char metric_delay;
- };
- struct isis_bcast_info
- {
- u_char snpa[ETH_ALEN]; /* SNPA of this circuit */
- char run_dr_elect[2]; /* Should we run dr election ? */
- struct thread *t_run_dr[2]; /* DR election thread */
- struct thread *t_send_lan_hello[2]; /* send LAN IIHs in this thread */
- struct list *adjdb[2]; /* adjacency dbs */
- struct list *lan_neighs[2]; /* list of lx neigh snpa */
- char is_dr[2]; /* Are we level x DR ? */
- u_char l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
- u_char l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
- struct thread *t_refresh_pseudo_lsp[2]; /* refresh pseudo-node LSPs */
- };
- struct isis_p2p_info
- {
- struct isis_adjacency *neighbor;
- struct thread *t_send_p2p_hello; /* send P2P IIHs in this thread */
- };
- struct isis_circuit
- {
- int state;
- u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
- struct isis_area *area; /* back pointer to the area */
- struct interface *interface; /* interface info from z */
- int fd; /* IS-IS l1/2 socket */
- int sap_length; /* SAP length for DLPI */
- struct nlpids nlpids;
- /*
- * Threads
- */
- struct thread *t_read;
- struct thread *t_send_csnp[2];
- struct thread *t_send_psnp[2];
- struct list *lsp_queue; /* LSPs to be txed (both levels) */
- time_t lsp_queue_last_cleared;/* timestamp used to enforce transmit interval;
- * for scalability, use one timestamp per
- * circuit, instead of one per lsp per circuit
- */
- /* there is no real point in two streams, just for programming kicker */
- int (*rx) (struct isis_circuit * circuit, u_char * ssnpa);
- struct stream *rcv_stream; /* Stream for receiving */
- int (*tx) (struct isis_circuit * circuit, int level);
- struct stream *snd_stream; /* Stream for sending */
- int idx; /* idx in S[RM|SN] flags */
- #define CIRCUIT_T_UNKNOWN 0
- #define CIRCUIT_T_BROADCAST 1
- #define CIRCUIT_T_P2P 2
- #define CIRCUIT_T_LOOPBACK 3
- int circ_type; /* type of the physical interface */
- int circ_type_config; /* config type of the physical interface */
- union
- {
- struct isis_bcast_info bc;
- struct isis_p2p_info p2p;
- } u;
- u_char priority[2]; /* l1/2 IS configured priority */
- int pad_hellos; /* add padding to Hello PDUs ? */
- char ext_domain; /* externalDomain (boolean) */
- int lsp_regenerate_pending[ISIS_LEVELS];
- /*
- * Configurables
- */
- struct isis_passwd passwd; /* Circuit rx/tx password */
- int is_type; /* circuit is type == level of circuit
- * differentiated from circuit type (media) */
- u_int32_t hello_interval[2]; /* l1HelloInterval in msecs */
- u_int16_t hello_multiplier[2]; /* l1HelloMultiplier */
- u_int16_t csnp_interval[2]; /* level-1 csnp-interval in seconds */
- u_int16_t psnp_interval[2]; /* level-1 psnp-interval in seconds */
- u_int8_t metric[2];
- u_int32_t te_metric[2];
- struct mpls_te_circuit *mtc; /* Support for MPLS-TE parameters - see isis_te.[c,h] */
- int ip_router; /* Route IP ? */
- int is_passive; /* Is Passive ? */
- struct list *ip_addrs; /* our IP addresses */
- #ifdef HAVE_IPV6
- int ipv6_router; /* Route IPv6 ? */
- struct list *ipv6_link; /* our link local IPv6 addresses */
- struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
- #endif /* HAVE_IPV6 */
- u_int16_t upadjcount[2];
- #define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01
- u_char flags;
- /*
- * Counters as in 10589--11.2.5.9
- */
- u_int32_t adj_state_changes; /* changesInAdjacencyState */
- u_int32_t init_failures; /* intialisationFailures */
- u_int32_t ctrl_pdus_rxed; /* controlPDUsReceived */
- u_int32_t ctrl_pdus_txed; /* controlPDUsSent */
- u_int32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges */
- u_int32_t rej_adjacencies; /* rejectedAdjacencies */
- };
- void isis_circuit_init (void);
- struct isis_circuit *isis_circuit_new (void);
- void isis_circuit_del (struct isis_circuit *circuit);
- struct isis_circuit *circuit_lookup_by_ifp (struct interface *ifp,
- struct list *list);
- struct isis_circuit *circuit_scan_by_ifp (struct interface *ifp);
- void isis_circuit_configure (struct isis_circuit *circuit,
- struct isis_area *area);
- void isis_circuit_deconfigure (struct isis_circuit *circuit,
- struct isis_area *area);
- void isis_circuit_if_add (struct isis_circuit *circuit,
- struct interface *ifp);
- void isis_circuit_if_del (struct isis_circuit *circuit,
- struct interface *ifp);
- void isis_circuit_if_bind (struct isis_circuit *circuit,
- struct interface *ifp);
- void isis_circuit_if_unbind (struct isis_circuit *circuit,
- struct interface *ifp);
- void isis_circuit_add_addr (struct isis_circuit *circuit,
- struct connected *conn);
- void isis_circuit_del_addr (struct isis_circuit *circuit,
- struct connected *conn);
- int isis_circuit_up (struct isis_circuit *circuit);
- void isis_circuit_down (struct isis_circuit *);
- void circuit_update_nlpids (struct isis_circuit *circuit);
- void isis_circuit_print_vty (struct isis_circuit *circuit, struct vty *vty,
- char detail);
- size_t isis_circuit_pdu_size(struct isis_circuit *circuit);
- void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream);
- struct isis_circuit *isis_circuit_create (struct isis_area *area, struct interface *ifp);
- void isis_circuit_af_set (struct isis_circuit *circuit, bool ip_router, bool ipv6_router);
- int isis_circuit_passive_set (struct isis_circuit *circuit, bool passive);
- void isis_circuit_is_type_set (struct isis_circuit *circuit, int is_type);
- int isis_circuit_circ_type_set (struct isis_circuit *circuit, int circ_type);
- int isis_circuit_metric_set (struct isis_circuit *circuit, int level, int metric);
- int isis_circuit_passwd_unset (struct isis_circuit *circuit);
- int isis_circuit_passwd_cleartext_set (struct isis_circuit *circuit, const char *passwd);
- int isis_circuit_passwd_hmac_md5_set (struct isis_circuit *circuit, const char *passwd);
- #endif /* _ZEBRA_ISIS_CIRCUIT_H */
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