ospf6d/ospf6_nssa.h

   1 /*
   2  * OSPFv3 Not So Stubby Area implementation.
   3  *
   4  * Copyright (C) 2021 Kaushik Nath
   5  * Copyright (C) 2021 Soman K.S
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #ifndef OSPF6_NSSA_H
  23 #define OSPF6_NSSA_H
  24
  25 #define OSPF6_OPTION_NP         0x08
  26 #define OSPF6_LS_INFINITY       0xffffff
  27
  28 #define OSPF6_OPT_N             (1 << 3) /* Handling Type-7 LSA Capability */
  29
  30 #define OSPF6_DEBUG_NSSA        0x09
  31 /* Debug option */
  32 extern unsigned char config_debug_ospf6_nssa;
  33
  34 #define OSPF6_DEBUG_NSSA_ON() (config_debug_ospf6_nssa = 1)
  35 #define OSPF6_DEBUG_NSSA_OFF() (config_debug_ospf6_nssa = 0)
  36 #define IS_OSPF6_DEBUG_NSSA config_debug_ospf6_nssa
  37
  38 #define CHECK_LSA_TYPE_1_TO_5_OR_7(type)                                       \
  39         ((type == OSPF6_ROUTER_LSA_MIN_SIZE)                                   \
  40          || (type == OSPF6_NETWORK_LSA_MIN_SIZE)                               \
  41          || (type == OSPF6_LINK_LSA_MIN_SIZE)                                  \
  42          || (type == OSPF6_INTRA_PREFIX_LSA_MIN_SIZE)                          \
  43          || (type == OSPF6_AS_NSSA_LSA))
  44
  45 #define OSPF6_LSA_APPROVED      0x08
  46 #define OSPF6_LSA_LOCAL_XLT     0x40
  47
  48 #define OSPF6_ABR_TASK_DELAY    5
  49
  50 int ospf6_area_nssa_no_summary_set(struct ospf6 *ospf6, struct in_addr area_id);
  51 int ospf6_area_nssa_unset(struct ospf6 *ospf6, struct ospf6_area *area);
  52 int ospf6_area_nssa_set(struct ospf6 *ospf6, struct ospf6_area *area);
  53
  54 extern void ospf6_nssa_lsa_flush(struct ospf6 *ospf6, struct prefix_ipv6 *p);
  55 extern struct ospf6_lsa *ospf6_translated_nssa_refresh(struct ospf6_area *oa,
  56                                                        struct ospf6_lsa *type7,
  57                                                        struct ospf6_lsa *type5);
  58
  59 extern void ospf6_asbr_nssa_redist_task(struct ospf6 *ospf6);
  60
  61 extern void ospf6_schedule_abr_task(struct ospf6 *ospf6);
  62 extern void ospf6_area_nssa_update(struct ospf6_area *area);
  63 void ospf6_asbr_prefix_readvertise(struct ospf6 *ospf6);
  64 extern void ospf6_nssa_lsa_originate(struct ospf6_route *route,
  65                                      struct ospf6_area *area, bool p_bit);
  66 extern void install_element_ospf6_debug_nssa(void);
  67 extern void ospf6_abr_nssa_type_7_defaults(struct ospf6 *osof6);
  68 int ospf6_redistribute_check(struct ospf6 *ospf6, struct ospf6_route *route,
  69                              int type);
  70 extern void ospf6_abr_check_translate_nssa(struct ospf6_area *area,
  71                                            struct ospf6_lsa *lsa);
  72 extern void ospf6_abr_nssa_check_status(struct ospf6 *ospf6);
  73 extern void config_write_ospf6_debug_nssa(struct vty *vty);
  74 #endif /* OSPF6_NSSA_H */