isisd/isisd.h

   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   int lsp_regenerate_pending[ISIS_LEVELS];
  97   struct thread *t_lsp_refresh[ISIS_LEVELS];
  98
  99   /*
 100    * Configurables
 101    */
 102   struct isis_passwd area_passwd;
 103   struct isis_passwd domain_passwd;
 104   /* do we support dynamic hostnames?  */
 105   char dynhostname;
 106   /* do we support new style metrics?  */
 107   char newmetric;
 108   char oldmetric;
 109   /* identifies the routing instance   */
 110   char *area_tag;
 111   /* area addresses for this area      */
 112   struct list *area_addrs;
 113   u_int16_t max_lsp_lifetime[ISIS_LEVELS];
 114   char is_type;                 /* level-1 level-1-2 or level-2-only */
 115   u_int16_t lsp_refresh[ISIS_LEVELS];
 116   /* minimum time allowed before lsp retransmission */
 117   u_int16_t lsp_gen_interval[ISIS_LEVELS];
 118   /* min interval between between consequtive SPFs */
 119   u_int16_t min_spf_interval[ISIS_LEVELS];
 120   /* the percentage of LSP mtu size used, before generating a new frag */
 121   int lsp_frag_threshold;
 122   int ip_circuits;
 123 #ifdef HAVE_IPV6
 124   int ipv6_circuits;
 125 #endif                          /* HAVE_IPV6 */
 126   /* Counters */
 127   u_int32_t circuit_state_changes;
 128
 129 #ifdef TOPOLOGY_GENERATE
 130   struct list *topology;
 131   char topology_baseis[ISIS_SYS_ID_LEN];  /* IS for the first IS emulated. */
 132   char *topology_basedynh;                /* Dynamic hostname base. */
 133   char top_params[200];                   /* FIXME: what is reasonable? */
 134 #endif /* TOPOLOGY_GENERATE */
 135 };
 136
 137 void isis_init (void);
 138 struct isis_area *isis_area_lookup (const char *);
 139
 140 #define DEBUG_ADJ_PACKETS                (1<<0)
 141 #define DEBUG_CHECKSUM_ERRORS            (1<<1)
 142 #define DEBUG_LOCAL_UPDATES              (1<<2)
 143 #define DEBUG_PROTOCOL_ERRORS            (1<<3)
 144 #define DEBUG_SNP_PACKETS                (1<<4)
 145 #define DEBUG_UPDATE_PACKETS             (1<<5)
 146 #define DEBUG_SPF_EVENTS                 (1<<6)
 147 #define DEBUG_SPF_STATS                  (1<<7)
 148 #define DEBUG_SPF_TRIGGERS               (1<<8)
 149 #define DEBUG_RTE_EVENTS                 (1<<9)
 150 #define DEBUG_EVENTS                     (1<<10)
 151 #define DEBUG_ZEBRA                      (1<<11)
 152
 153 #endif /* ISISD_H */