[mirror_frr.git] / isisd / isis_circuit.h

/*
 * 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"

#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 */
Commit	Line	Data
eb5d44eb	1	/*
	2	* IS-IS Rout(e)ing protocol - isis_circuit.h
	3	*
	4	* Copyright (C) 2001,2002 Sampo Saaristo
	5	* Tampere University of Technology
	6	* Institute of Communications Engineering
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public Licenseas published by the Free
	10	* Software Foundation; either version 2 of the License, or (at your option)
	11	* any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,but WITHOUT
	14	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	15	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	16	* more details.
	17
	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; if not, write to the Free Software Foundation, Inc.,
	20	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	21	*/
	22
	23	#ifndef ISIS_CIRCUIT_H
	24	#define ISIS_CIRCUIT_H
	25
91283e76 DS	26	#include "vty.h"
91283e76 DS	27
eb5d44eb	28	#define CIRCUIT_MAX 255
eb5d44eb	29
f390d2c7	30	struct password
f390d2c7	31	{
eb5d44eb	32	struct password *next;
f390d2c7	33	int len;
f390d2c7	34	u_char *pass;
eb5d44eb	35	};
eb5d44eb	36
f390d2c7	37	struct metric
f390d2c7	38	{
eb5d44eb	39	u_char metric_default;
	40	u_char metric_error;
	41	u_char metric_expense;
	42	u_char metric_delay;
	43	};
	44
f390d2c7	45	struct isis_bcast_info
	46	{
	47	u_char snpa[ETH_ALEN]; /* SNPA of this circuit */
	48	char run_dr_elect[2]; /* Should we run dr election ? */
	49	struct thread t_run_dr[2]; / DR election thread */
	50	struct thread t_send_lan_hello[2]; / send LAN IIHs in this thread */
	51	struct list adjdb[2]; / adjacency dbs */
	52	struct list lan_neighs[2]; / list of lx neigh snpa */
	53	char is_dr[2]; /* Are we level x DR ? */
	54	u_char l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
	55	u_char l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
	56	struct thread t_refresh_pseudo_lsp[2]; / refresh pseudo-node LSPs */
eb5d44eb	57	};
eb5d44eb	58
f390d2c7	59	struct isis_p2p_info
	60	{
	61	struct isis_adjacency *neighbor;
	62	struct thread t_send_p2p_hello; / send P2P IIHs in this thread */
eb5d44eb	63	};
eb5d44eb	64
f390d2c7	65	struct isis_circuit
f390d2c7	66	{
eb5d44eb	67	int state;
f390d2c7	68	u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
	69	struct isis_area area; / back pointer to the area */
	70	struct interface interface; / interface info from z */
	71	int fd; /* IS-IS l1/2 socket */
238497fc	72	int sap_length; /* SAP length for DLPI */
f390d2c7	73	struct nlpids nlpids;
eb5d44eb	74	/*
	75	* Threads
	76	*/
	77	struct thread *t_read;
	78	struct thread *t_send_csnp[2];
	79	struct thread *t_send_psnp[2];
f390d2c7	80	struct list lsp_queue; / LSPs to be txed (both levels) */
3f045a08 JB	81	time_t lsp_queue_last_cleared;/* timestamp used to enforce transmit interval;
	82	* for scalability, use one timestamp per
	83	* circuit, instead of one per lsp per circuit
	84	*/
eb5d44eb	85	/* there is no real point in two streams, just for programming kicker */
f390d2c7	86	int (rx) (struct isis_circuit circuit, u_char * ssnpa);
	87	struct stream rcv_stream; / Stream for receiving */
	88	int (tx) (struct isis_circuit circuit, int level);
	89	struct stream snd_stream; / Stream for sending */
	90	int idx; /* idx in S[RM\|SN] flags */
3f045a08 JB	91	#define CIRCUIT_T_UNKNOWN 0
	92	#define CIRCUIT_T_BROADCAST 1
	93	#define CIRCUIT_T_P2P 2
	94	#define CIRCUIT_T_LOOPBACK 3
f390d2c7	95	int circ_type; /* type of the physical interface */
3f045a08	96	int circ_type_config; /* config type of the physical interface */
f390d2c7	97	union
f390d2c7	98	{
eb5d44eb	99	struct isis_bcast_info bc;
	100	struct isis_p2p_info p2p;
	101	} u;
3f045a08 JB	102	u_char priority[2]; /* l1/2 IS configured priority */
3f045a08 JB	103	int pad_hellos; /* add padding to Hello PDUs ? */
f390d2c7	104	char ext_domain; /* externalDomain (boolean) */
3f045a08	105	int lsp_regenerate_pending[ISIS_LEVELS];
eb5d44eb	106	/*
	107	* Configurables
	108	*/
f390d2c7	109	struct isis_passwd passwd; /* Circuit rx/tx password */
3f045a08	110	int is_type; /* circuit is type == level of circuit
f390d2c7	111	* diffrenciated from circuit type (media) */
	112	u_int32_t hello_interval[2]; /* l1HelloInterval in msecs */
	113	u_int16_t hello_multiplier[2]; /* l1HelloMultiplier */
	114	u_int16_t csnp_interval[2]; /* level-1 csnp-interval in seconds */
	115	u_int16_t psnp_interval[2]; /* level-1 psnp-interval in seconds */
	116	struct metric metrics[2]; /* l1XxxMetric */
f21fb272	117	u_int32_t te_metric[2];
f390d2c7	118	int ip_router; /* Route IP ? */
3f045a08	119	int is_passive; /* Is Passive ? */
f390d2c7	120	struct list ip_addrs; / our IP addresses */
eb5d44eb	121	#ifdef HAVE_IPV6
f390d2c7	122	int ipv6_router; /* Route IPv6 ? */
	123	struct list ipv6_link; / our link local IPv6 addresses */
	124	struct list ipv6_non_link; / our non-link local IPv6 addresses */
	125	#endif /* HAVE_IPV6 */
eb5d44eb	126	u_int16_t upadjcount[2];
3f045a08 JB	127	#define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01
3f045a08 JB	128	u_char flags;
eb5d44eb	129	/*
	130	* Counters as in 10589--11.2.5.9
	131	*/
f390d2c7	132	u_int32_t adj_state_changes; /* changesInAdjacencyState */
	133	u_int32_t init_failures; /* intialisationFailures */
	134	u_int32_t ctrl_pdus_rxed; /* controlPDUsReceived */
	135	u_int32_t ctrl_pdus_txed; /* controlPDUsSent */
	136	u_int32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges */
	137	u_int32_t rej_adjacencies; /* rejectedAdjacencies */
eb5d44eb	138	};
eb5d44eb	139
f390d2c7	140	void isis_circuit_init (void);
f390d2c7	141	struct isis_circuit *isis_circuit_new (void);
3f045a08	142	void isis_circuit_del (struct isis_circuit *circuit);
f390d2c7	143	struct isis_circuit circuit_lookup_by_ifp (struct interface ifp,
	144	struct list *list);
	145	struct isis_circuit circuit_scan_by_ifp (struct interface ifp);
f390d2c7	146	void isis_circuit_configure (struct isis_circuit *circuit,
f390d2c7	147	struct isis_area *area);
f390d2c7	148	void isis_circuit_deconfigure (struct isis_circuit *circuit,
f390d2c7	149	struct isis_area *area);
f390d2c7	150	void isis_circuit_if_add (struct isis_circuit *circuit,
f390d2c7	151	struct interface *ifp);
3f045a08 JB	152	void isis_circuit_if_del (struct isis_circuit *circuit,
	153	struct interface *ifp);
	154	void isis_circuit_if_bind (struct isis_circuit *circuit,
	155	struct interface *ifp);
	156	void isis_circuit_if_unbind (struct isis_circuit *circuit,
	157	struct interface *ifp);
f390d2c7	158	void isis_circuit_add_addr (struct isis_circuit *circuit,
	159	struct connected *conn);
	160	void isis_circuit_del_addr (struct isis_circuit *circuit,
	161	struct connected *conn);
3f045a08 JB	162	int isis_circuit_up (struct isis_circuit *circuit);
	163	void isis_circuit_down (struct isis_circuit *);
	164	void circuit_update_nlpids (struct isis_circuit *circuit);
	165	void isis_circuit_print_vty (struct isis_circuit circuit, struct vty vty,
	166	char detail);
	167
eb5d44eb	168	#endif /* _ZEBRA_ISIS_CIRCUIT_H */