diff options
Diffstat (limited to 'ospf6d/ospf6_asbr.h')
| -rw-r--r-- | ospf6d/ospf6_asbr.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/ospf6d/ospf6_asbr.h b/ospf6d/ospf6_asbr.h new file mode 100644 index 0000000..d63e467 --- /dev/null +++ b/ospf6d/ospf6_asbr.h @@ -0,0 +1,172 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2001 Yasuhiro Ohara + */ + +#ifndef OSPF6_ASBR_H +#define OSPF6_ASBR_H + +/* for struct ospf6_prefix */ +#include "ospf6_proto.h" +/* for struct ospf6_lsa */ +#include "ospf6_lsa.h" +/* for struct ospf6_route */ +#include "ospf6_route.h" + +/* Debug option */ +extern unsigned char conf_debug_ospf6_asbr; +#define OSPF6_DEBUG_ASBR_ON() (conf_debug_ospf6_asbr = 1) +#define OSPF6_DEBUG_ASBR_OFF() (conf_debug_ospf6_asbr = 0) +#define IS_OSPF6_DEBUG_ASBR (conf_debug_ospf6_asbr) + +struct ospf6_external_info { + /* External route type */ + int type; + + /* Originating Link State ID */ + uint32_t id; + + struct in6_addr forwarding; + + route_tag_t tag; + + ifindex_t ifindex; + +}; + +/* OSPF6 ASBR Summarisation */ +typedef enum { + OSPF6_ROUTE_AGGR_NONE = 0, + OSPF6_ROUTE_AGGR_ADD, + OSPF6_ROUTE_AGGR_DEL, + OSPF6_ROUTE_AGGR_MODIFY +} ospf6_aggr_action_t; + +#define OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE 0x1 +#define OSPF6_EXTERNAL_AGGRT_ORIGINATED 0x2 + +#define OSPF6_EXTERNAL_RT_COUNT(aggr) \ + (((struct ospf6_external_aggr_rt *)aggr)->match_extnl_hash->count) + +struct ospf6_external_aggr_rt { + /* range address and masklen */ + struct prefix p; + + /* use bits for OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE and + * OSPF6_EXTERNAL_AGGRT_ORIGINATED + */ + uint16_t aggrflags; + + /* To store external metric-type */ + uint8_t mtype; + + /* Route tag for summary address */ + route_tag_t tag; + + /* To store aggregated metric config */ + int metric; + + /* To Store the LS ID when LSA is originated */ + uint32_t id; + + /* Action to be done after delay timer expiry */ + int action; + + /* OSPFv3 route generated by summary address. */ + struct ospf6_route *route; + + /* Hash table of matching external routes */ + struct hash *match_extnl_hash; +}; + +/* AS-External-LSA */ +#define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE 4U /* w/o IPv6 prefix */ +struct ospf6_as_external_lsa { + uint32_t bits_metric; + + struct ospf6_prefix prefix; + /* followed by none or one forwarding address */ + /* followed by none or one external route tag */ + /* followed by none or one referenced LS-ID */ +}; + +#define OSPF6_ASBR_BIT_T ntohl (0x01000000) +#define OSPF6_ASBR_BIT_F ntohl (0x02000000) +#define OSPF6_ASBR_BIT_E ntohl (0x04000000) + +#define OSPF6_ASBR_METRIC(E) (ntohl ((E)->bits_metric & htonl (0x00ffffff))) +#define OSPF6_ASBR_METRIC_SET(E, C) \ + { \ + (E)->bits_metric &= htonl(0xff000000); \ + (E)->bits_metric |= htonl(0x00ffffff) & htonl(C); \ + } + +extern void ospf6_asbr_lsa_add(struct ospf6_lsa *lsa); + +extern void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa, + struct ospf6_route *asbr_entry); +extern void ospf6_asbr_lsentry_add(struct ospf6_route *asbr_entry, + struct ospf6 *ospf6); +extern void ospf6_asbr_lsentry_remove(struct ospf6_route *asbr_entry, + struct ospf6 *ospf6); + +extern int ospf6_asbr_is_asbr(struct ospf6 *o); +extern void ospf6_asbr_redistribute_add(int type, ifindex_t ifindex, + struct prefix *prefix, + unsigned int nexthop_num, + const struct in6_addr *nexthop, + route_tag_t tag, struct ospf6 *ospf6); +extern void ospf6_asbr_redistribute_remove(int type, ifindex_t ifindex, + struct prefix *prefix, + struct ospf6 *ospf6); + +extern int ospf6_redistribute_config_write(struct vty *vty, + struct ospf6 *ospf6); + +extern void ospf6_asbr_init(void); +extern void ospf6_asbr_redistribute_disable(struct ospf6 *ospf6); +extern void ospf6_asbr_redistribute_reset(struct ospf6 *ospf6); +extern void ospf6_asbr_terminate(void); +extern void ospf6_asbr_send_externals_to_area(struct ospf6_area *); +extern void ospf6_asbr_remove_externals_from_area(struct ospf6_area *oa); + +extern int config_write_ospf6_debug_asbr(struct vty *vty); +extern int ospf6_distribute_config_write(struct vty *vty, struct ospf6 *ospf6); +extern void install_element_ospf6_debug_asbr(void); +extern void ospf6_asbr_update_route_ecmp_path(struct ospf6_route *old, + struct ospf6_route *route, + struct ospf6 *ospf6); +extern void ospf6_asbr_distribute_list_update(struct ospf6 *ospf6, + struct ospf6_redist *red); +struct ospf6_redist *ospf6_redist_lookup(struct ospf6 *ospf6, int type, + unsigned short instance); +extern void ospf6_asbr_routemap_update(const char *mapname); +extern struct ospf6_lsa * +ospf6_as_external_lsa_originate(struct ospf6_route *route, + struct ospf6 *ospf6); +extern void ospf6_asbr_status_update(struct ospf6 *ospf6, int status); + +int ospf6_asbr_external_rt_advertise(struct ospf6 *ospf6, + struct prefix *p); +int ospf6_external_aggr_delay_timer_set(struct ospf6 *ospf6, uint16_t interval); +int ospf6_asbr_external_rt_no_advertise(struct ospf6 *ospf6, + struct prefix *p); + +struct ospf6_external_aggr_rt * +ospf6_external_aggr_config_lookup(struct ospf6 *ospf6, struct prefix *p); + +int ospf6_external_aggr_config_set(struct ospf6 *ospf6, struct prefix *p, + route_tag_t tag, int metric, int mtype); + +int ospf6_external_aggr_config_unset(struct ospf6 *ospf6, + struct prefix *p); +void ospf6_handle_external_lsa_origination(struct ospf6 *ospf6, + struct ospf6_route *rt, + struct prefix *p); +void ospf6_external_aggregator_free(struct ospf6_external_aggr_rt *aggr); +void ospf6_unset_all_aggr_flag(struct ospf6 *ospf6); +void ospf6_fill_aggr_route_details(struct ospf6 *ospf6, + struct ospf6_external_aggr_rt *aggr); +void ospf6_asbr_summary_config_delete(struct ospf6 *ospf6, + struct route_node *rn); +#endif /* OSPF6_ASBR_H */ |