ospf6d/ospf6_route.h

   1 /*
   2  * Copyright (C) 1999 Yasuhiro Ohara
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GNU Zebra; see the file COPYING.  If not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef OSPF6_ROUTE_H
  23 #define OSPF6_ROUTE_H
  24
  25 #include "ospf6_hook.h"
  26 #include "ospf6_linklist.h"
  27
  28 struct ospf6_route_table
  29 {
  30   char name[128];
  31
  32   int freeze;
  33
  34   /* radix tree */
  35   struct route_table *table;
  36
  37   /* list of hooks */
  38   struct linklist *hook_list[3];
  39   void (*hook_add) (void *);
  40   void (*hook_change) (void *);
  41   void (*hook_remove) (void *);
  42
  43   u_int32_t route_id;
  44 };
  45
  46 \f
  47
  48 struct ospf6_route
  49 {
  50   /* Destination ID */
  51   struct prefix prefix;
  52
  53   /* Destination Type */
  54   u_char type;
  55 };
  56
  57 /* Path */
  58 struct ls_origin
  59 {
  60   u_int16_t type;
  61   u_int32_t id;
  62   u_int32_t adv_router;
  63 };
  64
  65 struct ospf6_path
  66 {
  67   /* Link State Origin */
  68   struct ls_origin origin;
  69
  70   /* Router bits */
  71   u_char router_bits;
  72
  73   /* Optional Capabilities */
  74   u_char capability[3];
  75
  76   /* Prefix Options */
  77   u_char prefix_options;
  78
  79   /* Associated Area */
  80   u_int32_t area_id;
  81
  82   /* Path-type */
  83   u_char type;
  84
  85   /* Cost */
  86   u_int8_t metric_type;
  87   u_int32_t cost;
  88   u_int32_t cost_e2;
  89 };
  90
  91 /* Nexthop */
  92 struct ospf6_nexthop
  93 {
  94   /* Interface index */
  95   unsigned int ifindex;
  96
  97   /* IP address, if any */
  98   struct in6_addr address;
  99 };
 100
 101 struct ospf6_route_node
 102 {
 103   struct ospf6_route_table *table;
 104   int count;
 105   u_int32_t route_id;
 106
 107   struct route_node  *route_node;
 108   struct ospf6_route  route;
 109   struct linklist    *path_list;
 110 };
 111
 112 struct ospf6_path_node
 113 {
 114   struct ospf6_route_node *route_node;
 115   struct ospf6_path        path;
 116   struct linklist         *nexthop_list;
 117 };
 118
 119 struct ospf6_nexthop_node
 120 {
 121   int            flag;
 122   struct timeval installed;
 123
 124   struct ospf6_path_node *path_node;
 125   struct ospf6_nexthop    nexthop;
 126 };
 127
 128 struct ospf6_route_req
 129 {
 130   struct ospf6_route_table *table;
 131   struct route_node    *route_node;
 132   struct linklist_node  path_lnode;
 133   struct linklist_node  nexthop_lnode;
 134   u_int32_t route_id;
 135
 136   int count;
 137   struct ospf6_route   route;
 138   struct ospf6_path    path;
 139   struct ospf6_nexthop nexthop;
 140 };
 141
 142 #define OSPF6_DEST_TYPE_NONE       0
 143 #define OSPF6_DEST_TYPE_ROUTER     1
 144 #define OSPF6_DEST_TYPE_NETWORK    2
 145 #define OSPF6_DEST_TYPE_DISCARD    3
 146 #define OSPF6_DEST_TYPE_MAX        4
 147
 148 #define OSPF6_PATH_TYPE_NONE       0
 149 #define OSPF6_PATH_TYPE_INTRA      1
 150 #define OSPF6_PATH_TYPE_INTER      2
 151 #define OSPF6_PATH_TYPE_EXTERNAL1  3
 152 #define OSPF6_PATH_TYPE_EXTERNAL2  4
 153 #define OSPF6_PATH_TYPE_ZOFFSET    5
 154 #define OSPF6_PATH_TYPE_ZSYSTEM  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_SYSTEM)
 155 #define OSPF6_PATH_TYPE_ZKERNEL  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_KERNEL)
 156 #define OSPF6_PATH_TYPE_ZCONNECT (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_CONNECT)
 157 #define OSPF6_PATH_TYPE_ZSTATIC  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_STATIC)
 158 #define OSPF6_PATH_TYPE_ZRIP     (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_RIP)
 159 #define OSPF6_PATH_TYPE_ZRIPNG   (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_RIPNG)
 160 #define OSPF6_PATH_TYPE_ZOSPF    (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_OSPF)
 161 #define OSPF6_PATH_TYPE_ZOSPF6   (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_OSPF6)
 162 #define OSPF6_PATH_TYPE_ZBGP     (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_BGP)
 163 #define OSPF6_PATH_TYPE_MAX      (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_MAX)
 164
 165 #define OSPF6_ROUTE_FLAG_ROUTE_CHANGE      0x01
 166 #define OSPF6_ROUTE_FLAG_PATH_CHANGE       0x02
 167 #define OSPF6_ROUTE_FLAG_ADD               0x04
 168 #define OSPF6_ROUTE_FLAG_REMOVE            0x08
 169 #define OSPF6_ROUTE_FLAG_CHANGE            0x10
 170
 171 int ospf6_route_lookup (struct ospf6_route_req *request,
 172                         struct prefix *prefix,
 173                         struct ospf6_route_table *table);
 174 void ospf6_route_head  (struct ospf6_route_req *request,
 175                         struct ospf6_route_table *table);
 176 int  ospf6_route_end   (struct ospf6_route_req *request);
 177 void ospf6_route_next  (struct ospf6_route_req *request);
 178
 179 void ospf6_route_add (struct ospf6_route_req *, struct ospf6_route_table *);
 180 void ospf6_route_remove (struct ospf6_route_req *, struct ospf6_route_table *);
 181 void ospf6_route_remove_all (struct ospf6_route_table *);
 182
 183 struct ospf6_route_table *ospf6_route_table_create ();
 184 void ospf6_route_table_delete (struct ospf6_route_table *);
 185
 186 void ospf6_route_table_freeze (struct ospf6_route_table *);
 187 void ospf6_route_table_thaw (struct ospf6_route_table *);
 188
 189 void ospf6_route_log_request (char *what, char *where,
 190                               struct ospf6_route_req *request);
 191
 192 void
 193 ospf6_route_hook_register (void (*add)    (struct ospf6_route_req *),
 194                            void (*change) (struct ospf6_route_req *),
 195                            void (*remove) (struct ospf6_route_req *),
 196                            struct ospf6_route_table *table);
 197 void
 198 ospf6_route_hook_unregister (void (*add)    (struct ospf6_route_req *),
 199                              void (*change) (struct ospf6_route_req *),
 200                              void (*remove) (struct ospf6_route_req *),
 201                              struct ospf6_route_table *table);
 202
 203 void ospf6_route_init ();
 204
 205 int ospf6_route_table_show (struct vty *, int, char **,
 206                             struct ospf6_route_table *);
 207
 208 #endif /* OSPF6_ROUTE_H */
 209