File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / quagga / isisd / isisd.h
Revision 1.1.1.2 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Oct 9 09:22:28 2012 UTC (11 years, 9 months ago) by misho
Branches: quagga, MAIN
CVS tags: v0_99_22p0, v0_99_22, v0_99_21, HEAD
quagga

    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:   u_int32_t router_id;          /* Router ID from zebra */
   44:   struct list *area_list;	/* list of IS-IS areas */
   45:   struct list *init_circ_list;
   46:   struct list *nexthops;	/* IPv4 next hops from this IS */
   47: #ifdef HAVE_IPV6
   48:   struct list *nexthops6;	/* IPv6 next hops from this IS */
   49: #endif				/* HAVE_IPV6 */
   50:   u_char max_area_addrs;	/* maximumAreaAdresses */
   51:   struct area_addr *man_area_addrs;	/* manualAreaAddresses */
   52:   u_int32_t debugs;		/* bitmap for debug */
   53:   time_t uptime;		/* when did we start */
   54:   struct thread *t_dync_clean;	/* dynamic hostname cache cleanup thread */
   55: 
   56:   /* Redistributed external information. */
   57:   struct route_table *external_info[ZEBRA_ROUTE_MAX + 1];
   58:   /* Redistribute metric info. */
   59:   struct
   60:   {
   61:     int type;			/* Internal or External  */
   62:     int value;			/* metric value */
   63:   } dmetric[ZEBRA_ROUTE_MAX + 1];
   64: 
   65:   struct
   66:   {
   67:     char *name;
   68:     struct route_map *map;
   69:   } rmap[ZEBRA_ROUTE_MAX + 1];
   70: #ifdef HAVE_IPV6
   71:   struct
   72:   {
   73:     struct
   74:     {
   75:       char *name;
   76:       struct route_map *map;
   77:     } rmap[ZEBRA_ROUTE_MAX + 1];
   78:   } inet6_afmode;
   79: #endif
   80: };
   81: 
   82: extern struct isis *isis;
   83: 
   84: struct isis_area
   85: {
   86:   struct isis *isis;				  /* back pointer */
   87:   dict_t *lspdb[ISIS_LEVELS];			  /* link-state dbs */
   88:   struct isis_spftree *spftree[ISIS_LEVELS];	  /* The v4 SPTs */
   89:   struct route_table *route_table[ISIS_LEVELS];	  /* IPv4 routes */
   90: #ifdef HAVE_IPV6
   91:   struct isis_spftree *spftree6[ISIS_LEVELS];	  /* The v6 SPTs */
   92:   struct route_table *route_table6[ISIS_LEVELS];  /* IPv6 routes */
   93: #endif
   94:   unsigned int min_bcast_mtu;
   95:   struct list *circuit_list;	/* IS-IS circuits */
   96:   struct flags flags;
   97:   struct thread *t_tick;	/* LSP walker */
   98:   struct thread *t_lsp_refresh[ISIS_LEVELS];
   99:   int lsp_regenerate_pending[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:   /* are we overloaded? */
  118:   char overload_bit;
  119:   u_int16_t lsp_refresh[ISIS_LEVELS];
  120:   /* minimum time allowed before lsp retransmission */
  121:   u_int16_t lsp_gen_interval[ISIS_LEVELS];
  122:   /* min interval between between consequtive SPFs */
  123:   u_int16_t min_spf_interval[ISIS_LEVELS];
  124:   /* the percentage of LSP mtu size used, before generating a new frag */
  125:   int lsp_frag_threshold;
  126:   int ip_circuits;
  127:   /* logging adjacency changes? */
  128:   u_char log_adj_changes;
  129: #ifdef HAVE_IPV6
  130:   int ipv6_circuits;
  131: #endif				/* HAVE_IPV6 */
  132:   /* Counters */
  133:   u_int32_t circuit_state_changes;
  134: 
  135: #ifdef TOPOLOGY_GENERATE
  136:   struct list *topology;
  137:   u_char topology_baseis[ISIS_SYS_ID_LEN];  /* IS for the first IS emulated. */
  138:   char *topology_basedynh;                /* Dynamic hostname base. */
  139:   char top_params[200];                   /* FIXME: what is reasonable? */
  140: #endif /* TOPOLOGY_GENERATE */
  141: };
  142: 
  143: void isis_init (void);
  144: void isis_new(unsigned long);
  145: struct isis_area *isis_area_create(const char *);
  146: struct isis_area *isis_area_lookup (const char *);
  147: int isis_area_get (struct vty *vty, const char *area_tag);
  148: void print_debug(struct vty *, int, int);
  149: 
  150: /* Master of threads. */
  151: extern struct thread_master *master;
  152: 
  153: #define DEBUG_ADJ_PACKETS                (1<<0)
  154: #define DEBUG_CHECKSUM_ERRORS            (1<<1)
  155: #define DEBUG_LOCAL_UPDATES              (1<<2)
  156: #define DEBUG_PROTOCOL_ERRORS            (1<<3)
  157: #define DEBUG_SNP_PACKETS                (1<<4)
  158: #define DEBUG_UPDATE_PACKETS             (1<<5)
  159: #define DEBUG_SPF_EVENTS                 (1<<6)
  160: #define DEBUG_SPF_STATS                  (1<<7)
  161: #define DEBUG_SPF_TRIGGERS               (1<<8)
  162: #define DEBUG_RTE_EVENTS                 (1<<9)
  163: #define DEBUG_EVENTS                     (1<<10)
  164: #define DEBUG_ZEBRA                      (1<<11)
  165: #define DEBUG_PACKET_DUMP                (1<<12)
  166: 
  167: #endif /* ISISD_H */

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