ospf6d/ospf6_intra.h

   1 /*
   2  * Copyright (C) 2003 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_INTRA_H
  23 #define OSPF6_INTRA_H
  24
  25 /* Router-LSA */
  26 struct ospf6_router_lsa
  27 {
  28   u_char bits;
  29   u_char options[3];
  30   /* followed by ospf6_router_lsdesc(s) */
  31 };
  32
  33 /* Link State Description in Router-LSA */
  34 struct ospf6_router_lsdesc
  35 {
  36   u_char    type;
  37   u_char    reserved;
  38   u_int16_t metric;                /* output cost */
  39   u_int32_t interface_id;
  40   u_int32_t neighbor_interface_id;
  41   u_int32_t neighbor_router_id;
  42 };
  43
  44 #define OSPF6_ROUTER_LSDESC_POINTTOPOINT       1
  45 #define OSPF6_ROUTER_LSDESC_TRANSIT_NETWORK    2
  46 #define OSPF6_ROUTER_LSDESC_STUB_NETWORK       3
  47 #define OSPF6_ROUTER_LSDESC_VIRTUAL_LINK       4
  48
  49 #define ROUTER_LSDESC_IS_TYPE(t,x)                         \
  50   ((((struct ospf6_router_lsdesc *)(x))->type ==           \
  51    OSPF6_ROUTER_LSDESC_ ## t) ? 1 : 0)
  52 #define ROUTER_LSDESC_GET_METRIC(x)                        \
  53   (ntohs (((struct ospf6_router_lsdesc *)(x))->metric))
  54 #define ROUTER_LSDESC_GET_IFID(x)                          \
  55   (ntohl (((struct ospf6_router_lsdesc *)(x))->interface_id))
  56 #define ROUTER_LSDESC_GET_NBR_IFID(x)                      \
  57   (ntohl (((struct ospf6_router_lsdesc *)(x))->neighbor_interface_id))
  58 #define ROUTER_LSDESC_GET_NBR_ROUTERID(x)                  \
  59   (((struct ospf6_router_lsdesc *)(x))->neighbor_router_id)
  60
  61 /* Network-LSA */
  62 struct ospf6_network_lsa
  63 {
  64   u_char reserved;
  65   u_char options[3];
  66   /* followed by ospf6_netowrk_lsd(s) */
  67 };
  68
  69 /* Link State Description in Router-LSA */
  70 struct ospf6_network_lsdesc
  71 {
  72   u_int32_t router_id;
  73 };
  74 #define NETWORK_LSDESC_GET_NBR_ROUTERID(x)                  \
  75   (((struct ospf6_network_lsdesc *)(x))->router_id)
  76
  77 /* Link-LSA */
  78 struct ospf6_link_lsa
  79 {
  80   u_char          priority;
  81   u_char          options[3];
  82   struct in6_addr linklocal_addr;
  83   u_int32_t       prefix_num;
  84   /* followed by ospf6 prefix(es) */
  85 };
  86
  87 /* Intra-Area-Prefix-LSA */
  88 struct ospf6_intra_prefix_lsa
  89 {
  90   u_int16_t prefix_num;
  91   u_int16_t ref_type;
  92   u_int32_t ref_id;
  93   u_int32_t ref_adv_router;
  94   /* followed by ospf6 prefix(es) */
  95 };
  96
  97 \f
  98 #define OSPF6_ROUTER_LSA_SCHEDULE(oa) \
  99   do { \
 100     if (! (oa)->thread_router_lsa) \
 101       (oa)->thread_router_lsa = \
 102         thread_add_event (master, ospf6_router_lsa_originate, oa, 0); \
 103   } while (0)
 104 #define OSPF6_NETWORK_LSA_SCHEDULE(oi) \
 105   do { \
 106     if (! (oi)->thread_network_lsa) \
 107       (oi)->thread_network_lsa = \
 108         thread_add_event (master, ospf6_network_lsa_originate, oi, 0); \
 109   } while (0)
 110 #define OSPF6_LINK_LSA_SCHEDULE(oi) \
 111   do { \
 112     if (! (oi)->thread_link_lsa) \
 113       (oi)->thread_link_lsa = \
 114         thread_add_event (master, ospf6_link_lsa_originate, oi, 0); \
 115   } while (0)
 116 #define OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oa) \
 117   do { \
 118     if (! (oa)->thread_intra_prefix_lsa) \
 119       (oa)->thread_intra_prefix_lsa = \
 120         thread_add_event (master, ospf6_intra_prefix_lsa_originate_stub, \
 121                           oa, 0); \
 122   } while (0)
 123 #define OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi) \
 124   do { \
 125     if (! (oi)->thread_intra_prefix_lsa) \
 126       (oi)->thread_intra_prefix_lsa = \
 127         thread_add_event (master, ospf6_intra_prefix_lsa_originate_transit, \
 128                           oi, 0); \
 129   } while (0)
 130
 131 /* Function Prototypes */
 132 char *ospf6_router_lsdesc_lookup (u_char type, u_int32_t interface_id,
 133                             u_int32_t neighbor_interface_id,
 134                             u_int32_t neighbor_router_id,
 135                             struct ospf6_lsa *lsa);
 136 char *ospf6_network_lsdesc_lookup (u_int32_t router_id,
 137                                    struct ospf6_lsa *lsa);
 138
 139 int ospf6_router_lsa_originate (struct thread *);
 140 int ospf6_network_lsa_originate (struct thread *);
 141 int ospf6_link_lsa_originate (struct thread *);
 142 int ospf6_intra_prefix_lsa_originate_transit (struct thread *);
 143 int ospf6_intra_prefix_lsa_originate_stub (struct thread *);
 144 void ospf6_intra_prefix_lsa_add (struct ospf6_lsa *lsa);
 145 void ospf6_intra_prefix_lsa_remove (struct ospf6_lsa *lsa);
 146
 147 void ospf6_intra_route_calculation (struct ospf6_area *oa);
 148 void ospf6_intra_asbr_calculation (struct ospf6_area *oa);
 149
 150 void ospf6_intra_init ();
 151
 152 #endif /* OSPF6_LSA_H */
 153