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    1: /*
    2:  * IS-IS Rout(e)ing protocol - isisd.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 ISISD_H
   24: #define ISISD_H
   25: 
   26: #define ISISD_VERSION "0.0.7"
   27: 
   28: /* uncomment if you are a developer in bug hunt */
   29: /* #define EXTREME_DEBUG  */
   30: /* #define EXTREME_TLV_DEBUG */
   31: 
   32: struct rmap
   33: {
   34:   char *name;
   35:   struct route_map *map;
   36: };
   37: 
   38: struct isis
   39: {
   40:   u_long process_id;
   41:   int sysid_set;
   42:   u_char sysid[ISIS_SYS_ID_LEN];	/* SystemID for this IS */
   43:   struct list *area_list;	/* list of IS-IS areas */
   44:   struct list *init_circ_list;
   45:   struct list *nexthops;	/* IPv4 next hops from this IS */
   46: #ifdef HAVE_IPV6
   47:   struct list *nexthops6;	/* IPv6 next hops from this IS */
   48: #endif				/* HAVE_IPV6 */
   49:   u_char max_area_addrs;	/* maximumAreaAdresses */
   50:   struct area_addr *man_area_addrs;	/* manualAreaAddresses */
   51:   u_int32_t debugs;		/* bitmap for debug */
   52:   time_t uptime;		/* when did we start */
   53:   struct thread *t_dync_clean;	/* dynamic hostname cache cleanup thread */
   54: 
   55:   /* Redistributed external information. */
   56:   struct route_table *external_info[ZEBRA_ROUTE_MAX + 1];
   57:   /* Redistribute metric info. */
   58:   struct
   59:   {
   60:     int type;			/* Internal or External  */
   61:     int value;			/* metric value */
   62:   } dmetric[ZEBRA_ROUTE_MAX + 1];
   63: 
   64:   struct
   65:   {
   66:     char *name;
   67:     struct route_map *map;
   68:   } rmap[ZEBRA_ROUTE_MAX + 1];
   69: #ifdef HAVE_IPV6
   70:   struct
   71:   {
   72:     struct
   73:     {
   74:       char *name;
   75:       struct route_map *map;
   76:     } rmap[ZEBRA_ROUTE_MAX + 1];
   77:   } inet6_afmode;
   78: #endif
   79: };
   80: 
   81: struct isis_area
   82: {
   83:   struct isis *isis;				  /* back pointer */
   84:   dict_t *lspdb[ISIS_LEVELS];			  /* link-state dbs */
   85:   struct isis_spftree *spftree[ISIS_LEVELS];	  /* The v4 SPTs */
   86:   struct route_table *route_table[ISIS_LEVELS];	  /* IPv4 routes */
   87: #ifdef HAVE_IPV6
   88:   struct isis_spftree *spftree6[ISIS_LEVELS];	  /* The v6 SPTs */
   89:   struct route_table *route_table6[ISIS_LEVELS];  /* IPv6 routes */
   90: #endif
   91:   unsigned int min_bcast_mtu;
   92:   struct list *circuit_list;	/* IS-IS circuits */
   93:   struct flags flags;
   94:   struct thread *t_tick;	/* LSP walker */
   95:   struct thread *t_remove_aged;
   96:   struct thread *t_lsp_l1_regenerate;
   97:   struct thread *t_lsp_l2_regenerate;
   98:   int lsp_regenerate_pending[ISIS_LEVELS];
   99:   struct thread *t_lsp_refresh[ISIS_LEVELS];
  100: 
  101:   /*
  102:    * Configurables 
  103:    */
  104:   struct isis_passwd area_passwd;
  105:   struct isis_passwd domain_passwd;
  106:   /* do we support dynamic hostnames?  */
  107:   char dynhostname;
  108:   /* do we support new style metrics?  */
  109:   char newmetric;
  110:   char oldmetric;
  111:   /* identifies the routing instance   */
  112:   char *area_tag;
  113:   /* area addresses for this area      */
  114:   struct list *area_addrs;
  115:   u_int16_t max_lsp_lifetime[ISIS_LEVELS];
  116:   char is_type;			/* level-1 level-1-2 or level-2-only */
  117:   u_int16_t lsp_refresh[ISIS_LEVELS];
  118:   /* minimum time allowed before lsp retransmission */
  119:   u_int16_t lsp_gen_interval[ISIS_LEVELS];
  120:   /* min interval between between consequtive SPFs */
  121:   u_int16_t min_spf_interval[ISIS_LEVELS];
  122:   /* the percentage of LSP mtu size used, before generating a new frag */
  123:   int lsp_frag_threshold;
  124:   int ip_circuits;
  125: #ifdef HAVE_IPV6
  126:   int ipv6_circuits;
  127: #endif				/* HAVE_IPV6 */
  128:   /* Counters */
  129:   u_int32_t circuit_state_changes;
  130: 
  131: #ifdef TOPOLOGY_GENERATE
  132:   struct list *topology;
  133:   char topology_baseis[ISIS_SYS_ID_LEN];  /* IS for the first IS emulated. */
  134:   char *topology_basedynh;                /* Dynamic hostname base. */
  135:   char top_params[200];                   /* FIXME: what is reasonable? */
  136: #endif /* TOPOLOGY_GENERATE */
  137: };
  138: 
  139: void isis_init (void);
  140: struct isis_area *isis_area_lookup (const char *);
  141: 
  142: #define DEBUG_ADJ_PACKETS                (1<<0)
  143: #define DEBUG_CHECKSUM_ERRORS            (1<<1)
  144: #define DEBUG_LOCAL_UPDATES              (1<<2)
  145: #define DEBUG_PROTOCOL_ERRORS            (1<<3)
  146: #define DEBUG_SNP_PACKETS                (1<<4)
  147: #define DEBUG_UPDATE_PACKETS             (1<<5)
  148: #define DEBUG_SPF_EVENTS                 (1<<6)
  149: #define DEBUG_SPF_STATS                  (1<<7)
  150: #define DEBUG_SPF_TRIGGERS               (1<<8)
  151: #define DEBUG_RTE_EVENTS                 (1<<9)
  152: #define DEBUG_EVENTS                     (1<<10)
  153: #define DEBUG_ZEBRA                      (1<<11)
  154: 
  155: #endif /* ISISD_H */