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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
#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
* diffrenciated 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 */
struct metric metrics[2]; /* l1XxxMetric */
u_int32_t te_metric[2];
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);
#endif /* _ZEBRA_ISIS_CIRCUIT_H */
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