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bac66c5c64
If area is a normal area and has adjacencies up and then the user changes the area to a stub area, the code was leaving existing AS-External LSAs in the database and was sending AS-External LSAs into the stub area causing the adjacency to stay in Ex-Start. With this change we now cleanup the AS-External LSAs that existed when area was not a stub and do not advertise AS-External LSAs into the stub area. Signed-off-by: Lynne Morrison <lynne@voltanet.io>
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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* Copyright (C) 2001 Yasuhiro Ohara
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef OSPF6_ASBR_H
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#define OSPF6_ASBR_H
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/* for struct ospf6_prefix */
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#include "ospf6_proto.h"
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/* for struct ospf6_lsa */
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#include "ospf6_lsa.h"
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/* for struct ospf6_route */
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#include "ospf6_route.h"
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/* Debug option */
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extern unsigned char conf_debug_ospf6_asbr;
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#define OSPF6_DEBUG_ASBR_ON() (conf_debug_ospf6_asbr = 1)
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#define OSPF6_DEBUG_ASBR_OFF() (conf_debug_ospf6_asbr = 0)
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#define IS_OSPF6_DEBUG_ASBR (conf_debug_ospf6_asbr)
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struct ospf6_external_info {
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/* External route type */
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int type;
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/* Originating Link State ID */
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uint32_t id;
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struct in6_addr forwarding;
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route_tag_t tag;
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ifindex_t ifindex;
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};
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/* AS-External-LSA */
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#define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE 4U /* w/o IPv6 prefix */
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struct ospf6_as_external_lsa {
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uint32_t bits_metric;
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struct ospf6_prefix prefix;
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/* followed by none or one forwarding address */
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/* followed by none or one external route tag */
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/* followed by none or one referenced LS-ID */
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};
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#define OSPF6_ASBR_BIT_T ntohl (0x01000000)
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#define OSPF6_ASBR_BIT_F ntohl (0x02000000)
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#define OSPF6_ASBR_BIT_E ntohl (0x04000000)
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#define OSPF6_ASBR_METRIC(E) (ntohl ((E)->bits_metric & htonl (0x00ffffff)))
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#define OSPF6_ASBR_METRIC_SET(E, C) \
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{ \
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(E)->bits_metric &= htonl(0xff000000); \
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(E)->bits_metric |= htonl(0x00ffffff) & htonl(C); \
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}
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extern void ospf6_asbr_lsa_add(struct ospf6_lsa *lsa);
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extern void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa,
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struct ospf6_route *asbr_entry);
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extern void ospf6_asbr_lsentry_add(struct ospf6_route *asbr_entry,
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struct ospf6 *ospf6);
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extern void ospf6_asbr_lsentry_remove(struct ospf6_route *asbr_entry,
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struct ospf6 *ospf6);
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extern int ospf6_asbr_is_asbr(struct ospf6 *o);
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extern void ospf6_asbr_redistribute_add(int type, ifindex_t ifindex,
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struct prefix *prefix,
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unsigned int nexthop_num,
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struct in6_addr *nexthop,
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route_tag_t tag, struct ospf6 *ospf6);
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extern void ospf6_asbr_redistribute_remove(int type, ifindex_t ifindex,
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struct prefix *prefix,
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struct ospf6 *ospf6);
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extern int ospf6_redistribute_config_write(struct vty *vty,
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struct ospf6 *ospf6);
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extern void ospf6_asbr_init(void);
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extern void ospf6_asbr_redistribute_reset(struct ospf6 *ospf6);
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extern void ospf6_asbr_terminate(void);
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extern void ospf6_asbr_send_externals_to_area(struct ospf6_area *);
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extern void ospf6_asbr_remove_externals_from_area(struct ospf6_area *oa);
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extern int config_write_ospf6_debug_asbr(struct vty *vty);
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extern void install_element_ospf6_debug_asbr(void);
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extern void ospf6_asbr_update_route_ecmp_path(struct ospf6_route *old,
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struct ospf6_route *route,
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struct ospf6 *ospf6);
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extern void ospf6_asbr_distribute_list_update(int type, struct ospf6 *ospf6);
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struct ospf6_redist *ospf6_redist_lookup(struct ospf6 *ospf6, int type,
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unsigned short instance);
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#endif /* OSPF6_ASBR_H */
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