isisd/isisd.h - quagga - Gitiles

 /*
  * IS-IS Rout(e)ing protocol - isisd.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 ISISD_H
 #define ISISD_H

 #define ISISD_VERSION "0.0.7"

 #include "isisd/isis_constants.h"
 #include "isisd/isis_common.h"
 #include "isisd/isis_redist.h"
 #include "isis_flags.h"
 #include "dict.h"

 /* uncomment if you are a developer in bug hunt */
 /* #define EXTREME_DEBUG  */
 /* #define EXTREME_TLV_DEBUG */

 struct isis
 {
   u_long process_id;
   int sysid_set;
   u_char sysid[ISIS_SYS_ID_LEN];	/* SystemID for this IS */
   u_int32_t router_id;          /* Router ID from zebra */
   struct list *area_list;	/* list of IS-IS areas */
   struct list *init_circ_list;
   struct list *nexthops;	/* IPv4 next hops from this IS */
 #ifdef HAVE_IPV6
   struct list *nexthops6;	/* IPv6 next hops from this IS */
 #endif				/* HAVE_IPV6 */
   u_char max_area_addrs;	/* maximumAreaAdresses */
   struct area_addr *man_area_addrs;	/* manualAreaAddresses */
   u_int32_t debugs;		/* bitmap for debug */
   time_t uptime;		/* when did we start */
   struct thread *t_dync_clean;	/* dynamic hostname cache cleanup thread */

   struct route_table *ext_info[REDIST_PROTOCOL_COUNT];
 };

 extern struct isis *isis;

 struct isis_area
 {
   struct isis *isis;				  /* back pointer */
   dict_t *lspdb[ISIS_LEVELS];			  /* link-state dbs */
   struct isis_spftree *spftree[ISIS_LEVELS];	  /* The v4 SPTs */
   struct route_table *route_table[ISIS_LEVELS];	  /* IPv4 routes */
 #ifdef HAVE_IPV6
   struct isis_spftree *spftree6[ISIS_LEVELS];	  /* The v6 SPTs */
   struct route_table *route_table6[ISIS_LEVELS];  /* IPv6 routes */
 #endif
 #define DEFAULT_LSP_MTU 1497
   unsigned int lsp_mtu;				  /* Size of LSPs to generate */
   struct list *circuit_list;	/* IS-IS circuits */
   struct flags flags;
   struct thread *t_tick;	/* LSP walker */
   struct thread *t_lsp_refresh[ISIS_LEVELS];
   /* t_lsp_refresh is used in two ways:
    * a) regular refresh of LSPs
    * b) (possibly throttled) updates to LSPs
    *
    * The lsp_regenerate_pending flag tracks whether the timer is active
    * for the a) or the b) case.
    *
    * It is of utmost importance to clear this flag when the timer is
    * rescheduled for normal refresh, because otherwise, updates will
    * be delayed until the next regular refresh.
    */
   int lsp_regenerate_pending[ISIS_LEVELS];

   /*
    * Configurables
    */
   struct isis_passwd area_passwd;
   struct isis_passwd domain_passwd;
   /* do we support dynamic hostnames?  */
   char dynhostname;
   /* do we support new style metrics?  */
   char newmetric;
   char oldmetric;
   /* identifies the routing instance   */
   char *area_tag;
   /* area addresses for this area      */
   struct list *area_addrs;
   u_int16_t max_lsp_lifetime[ISIS_LEVELS];
   char is_type;			/* level-1 level-1-2 or level-2-only */
   /* are we overloaded? */
   char overload_bit;
   /* L1/L2 router identifier for inter-area traffic */
   char attached_bit;
   u_int16_t lsp_refresh[ISIS_LEVELS];
   /* minimum time allowed before lsp retransmission */
   u_int16_t lsp_gen_interval[ISIS_LEVELS];
   /* min interval between between consequtive SPFs */
   u_int16_t min_spf_interval[ISIS_LEVELS];
   /* the percentage of LSP mtu size used, before generating a new frag */
   int lsp_frag_threshold;
   int ip_circuits;
   /* logging adjacency changes? */
   u_char log_adj_changes;
 #ifdef HAVE_IPV6
   int ipv6_circuits;
 #endif				/* HAVE_IPV6 */
   /* Counters */
   u_int32_t circuit_state_changes;
   struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT]
                                     [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS];
   struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS];

 #ifdef TOPOLOGY_GENERATE
   struct list *topology;
   u_char topology_baseis[ISIS_SYS_ID_LEN];  /* IS for the first IS emulated. */
   char *topology_basedynh;                /* Dynamic hostname base. */
   char top_params[200];                   /* FIXME: what is reasonable? */
 #endif /* TOPOLOGY_GENERATE */
 };

 void isis_init (void);
 void isis_new(unsigned long);
 struct isis_area *isis_area_create(const char *);
 struct isis_area *isis_area_lookup (const char *);
 int isis_area_get (struct vty *vty, const char *area_tag);
 void print_debug(struct vty *, int, int);

 void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit);
 void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit);
 void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname);
 void isis_area_metricstyle_set(struct isis_area *area, bool old_metric,
 			       bool new_metric);
 void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu);
 void isis_area_is_type_set(struct isis_area *area, int is_type);
 void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level,
 			            uint16_t max_lsp_lifetime);
 void isis_area_lsp_refresh_set(struct isis_area *area, int level,
 			       uint16_t lsp_refresh);

 void isis_vty_init (void);

 /* Master of threads. */
 extern struct thread_master *master;

 #define DEBUG_ADJ_PACKETS                (1<<0)
 #define DEBUG_CHECKSUM_ERRORS            (1<<1)
 #define DEBUG_LOCAL_UPDATES              (1<<2)
 #define DEBUG_PROTOCOL_ERRORS            (1<<3)
 #define DEBUG_SNP_PACKETS                (1<<4)
 #define DEBUG_UPDATE_PACKETS             (1<<5)
 #define DEBUG_SPF_EVENTS                 (1<<6)
 #define DEBUG_SPF_STATS                  (1<<7)
 #define DEBUG_SPF_TRIGGERS               (1<<8)
 #define DEBUG_RTE_EVENTS                 (1<<9)
 #define DEBUG_EVENTS                     (1<<10)
 #define DEBUG_ZEBRA                      (1<<11)
 #define DEBUG_PACKET_DUMP                (1<<12)
 #define DEBUG_LSP_GEN                    (1<<13)
 #define DEBUG_LSP_SCHED                  (1<<14)

 #define lsp_debug(...) \
   do \
     { \
       if (isis->debugs & DEBUG_LSP_GEN) \
         zlog_debug(__VA_ARGS__); \
     } \
   while (0)

 #define sched_debug(...) \
   do \
     { \
       if (isis->debugs & DEBUG_LSP_SCHED) \
         zlog_debug(__VA_ARGS__); \
     } \
   while (0)

 #define DEBUG_TE                         (1<<13)

 #define IS_DEBUG_ISIS(x)                 (isis->debugs & x)

 #endif /* ISISD_H */
	/*
	* IS-IS Rout(e)ing protocol - isisd.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 ISISD_H
	#define ISISD_H

	#define ISISD_VERSION "0.0.7"

	#include "isisd/isis_constants.h"
	#include "isisd/isis_common.h"
	#include "isisd/isis_redist.h"
	#include "isis_flags.h"
	#include "dict.h"

	/* uncomment if you are a developer in bug hunt */
	/* #define EXTREME_DEBUG */
	/* #define EXTREME_TLV_DEBUG */

	struct isis
	{
	u_long process_id;
	int sysid_set;
	u_char sysid[ISIS_SYS_ID_LEN]; /* SystemID for this IS */
	u_int32_t router_id; /* Router ID from zebra */
	struct list area_list; / list of IS-IS areas */
	struct list *init_circ_list;
	struct list nexthops; / IPv4 next hops from this IS */
	#ifdef HAVE_IPV6
	struct list nexthops6; / IPv6 next hops from this IS */
	#endif /* HAVE_IPV6 */
	u_char max_area_addrs; /* maximumAreaAdresses */
	struct area_addr man_area_addrs; / manualAreaAddresses */
	u_int32_t debugs; /* bitmap for debug */
	time_t uptime; /* when did we start */
	struct thread t_dync_clean; / dynamic hostname cache cleanup thread */

	struct route_table *ext_info[REDIST_PROTOCOL_COUNT];
	};

	extern struct isis *isis;

	struct isis_area
	{
	struct isis isis; / back pointer */
	dict_t lspdb[ISIS_LEVELS]; / link-state dbs */
	struct isis_spftree spftree[ISIS_LEVELS]; / The v4 SPTs */
	struct route_table route_table[ISIS_LEVELS]; / IPv4 routes */
	#ifdef HAVE_IPV6
	struct isis_spftree spftree6[ISIS_LEVELS]; / The v6 SPTs */
	struct route_table route_table6[ISIS_LEVELS]; / IPv6 routes */
	#endif
	#define DEFAULT_LSP_MTU 1497
	unsigned int lsp_mtu; /* Size of LSPs to generate */
	struct list circuit_list; / IS-IS circuits */
	struct flags flags;
	struct thread t_tick; / LSP walker */
	struct thread *t_lsp_refresh[ISIS_LEVELS];
	/* t_lsp_refresh is used in two ways:
	* a) regular refresh of LSPs
	* b) (possibly throttled) updates to LSPs
	*
	* The lsp_regenerate_pending flag tracks whether the timer is active
	* for the a) or the b) case.
	*
	* It is of utmost importance to clear this flag when the timer is
	* rescheduled for normal refresh, because otherwise, updates will
	* be delayed until the next regular refresh.
	*/
	int lsp_regenerate_pending[ISIS_LEVELS];

	/*
	* Configurables
	*/
	struct isis_passwd area_passwd;
	struct isis_passwd domain_passwd;
	/* do we support dynamic hostnames? */
	char dynhostname;
	/* do we support new style metrics? */
	char newmetric;
	char oldmetric;
	/* identifies the routing instance */
	char *area_tag;
	/* area addresses for this area */
	struct list *area_addrs;
	u_int16_t max_lsp_lifetime[ISIS_LEVELS];
	char is_type; /* level-1 level-1-2 or level-2-only */
	/* are we overloaded? */
	char overload_bit;
	/* L1/L2 router identifier for inter-area traffic */
	char attached_bit;
	u_int16_t lsp_refresh[ISIS_LEVELS];
	/* minimum time allowed before lsp retransmission */
	u_int16_t lsp_gen_interval[ISIS_LEVELS];
	/* min interval between between consequtive SPFs */
	u_int16_t min_spf_interval[ISIS_LEVELS];
	/* the percentage of LSP mtu size used, before generating a new frag */
	int lsp_frag_threshold;
	int ip_circuits;
	/* logging adjacency changes? */
	u_char log_adj_changes;
	#ifdef HAVE_IPV6
	int ipv6_circuits;
	#endif /* HAVE_IPV6 */
	/* Counters */
	u_int32_t circuit_state_changes;
	struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT]
	[ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS];
	struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS];

	#ifdef TOPOLOGY_GENERATE
	struct list *topology;
	u_char topology_baseis[ISIS_SYS_ID_LEN]; /* IS for the first IS emulated. */
	char topology_basedynh; / Dynamic hostname base. */
	char top_params[200]; /* FIXME: what is reasonable? */
	#endif /* TOPOLOGY_GENERATE */
	};

	void isis_init (void);
	void isis_new(unsigned long);
	struct isis_area isis_area_create(const char );
	struct isis_area isis_area_lookup (const char );
	int isis_area_get (struct vty vty, const char area_tag);
	void print_debug(struct vty *, int, int);

	void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit);
	void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit);
	void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname);
	void isis_area_metricstyle_set(struct isis_area *area, bool old_metric,
	bool new_metric);
	void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu);
	void isis_area_is_type_set(struct isis_area *area, int is_type);
	void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level,
	uint16_t max_lsp_lifetime);
	void isis_area_lsp_refresh_set(struct isis_area *area, int level,
	uint16_t lsp_refresh);

	void isis_vty_init (void);

	/* Master of threads. */
	extern struct thread_master *master;

	#define DEBUG_ADJ_PACKETS (1<<0)
	#define DEBUG_CHECKSUM_ERRORS (1<<1)
	#define DEBUG_LOCAL_UPDATES (1<<2)
	#define DEBUG_PROTOCOL_ERRORS (1<<3)
	#define DEBUG_SNP_PACKETS (1<<4)
	#define DEBUG_UPDATE_PACKETS (1<<5)
	#define DEBUG_SPF_EVENTS (1<<6)
	#define DEBUG_SPF_STATS (1<<7)
	#define DEBUG_SPF_TRIGGERS (1<<8)
	#define DEBUG_RTE_EVENTS (1<<9)
	#define DEBUG_EVENTS (1<<10)
	#define DEBUG_ZEBRA (1<<11)
	#define DEBUG_PACKET_DUMP (1<<12)
	#define DEBUG_LSP_GEN (1<<13)
	#define DEBUG_LSP_SCHED (1<<14)

	#define lsp_debug(...) \
	do \
	{ \
	if (isis->debugs & DEBUG_LSP_GEN) \
	zlog_debug(__VA_ARGS__); \
	} \
	while (0)

	#define sched_debug(...) \
	do \
	{ \
	if (isis->debugs & DEBUG_LSP_SCHED) \
	zlog_debug(__VA_ARGS__); \
	} \
	while (0)

	#define DEBUG_TE (1<<13)

	#define IS_DEBUG_ISIS(x) (isis->debugs & x)

	#endif /* ISISD_H */