ospf6_lsa_premature_aging(lsa);
}
+/* Puring Multi Link-State IDs LSAs:
+ * Same Advertising Router with Multiple Link-State IDs
+ * LSAs, purging require to traverse all Link-State IDs
+ */
+void ospf6_lsa_purge_multi_ls_id(struct ospf6_area *oa, struct ospf6_lsa *lsa)
+{
+ int ls_id = 0;
+ struct ospf6_lsa *lsa_next;
+ uint16_t type;
+
+ type = lsa->header->type;
+
+ ospf6_lsa_purge(lsa);
+
+ lsa_next = ospf6_lsdb_lookup(type, htonl(++ls_id),
+ oa->ospf6->router_id, oa->lsdb);
+ while (lsa_next) {
+ ospf6_lsa_purge(lsa_next);
+ lsa_next = ospf6_lsdb_lookup(type, htonl(++ls_id),
+ oa->ospf6->router_id, oa->lsdb);
+ }
+}
void ospf6_increment_retrans_count(struct ospf6_lsa *lsa)
{
struct timeval now;
struct ospf6_lsa *old;
- if (IS_OSPF6_DEBUG_LSA_TYPE(lsa->header->type)
- || IS_OSPF6_DEBUG_EXAMIN_TYPE(lsa->header->type))
- zlog_debug("Install LSA: %s", lsa->name);
-
/* Remove the old instance from all neighbors' Link state
retransmission list (RFC2328 13.2 last paragraph) */
old = ospf6_lsdb_lookup(lsa->header->type, lsa->header->id,
ospf6_lsa_checksum(lsa->header);
}
+ if (IS_OSPF6_DEBUG_LSA_TYPE(lsa->header->type)
+ || IS_OSPF6_DEBUG_EXAMIN_TYPE(lsa->header->type))
+ zlog_debug("%s Install LSA: %s age %d seqnum %x in LSDB.",
+ __PRETTY_FUNCTION__, lsa->name,
+ ntohs(lsa->header->age), ntohl(lsa->header->seqnum));
+
/* actually install */
lsa->installed = now;
ospf6_lsdb_add(lsa, lsa->lsdb);
/* RFC2740 section 3.5.2. Sending Link State Update packets */
/* RFC2328 section 13.3 Next step in the flooding procedure */
-static void ospf6_flood_interface(struct ospf6_neighbor *from,
- struct ospf6_lsa *lsa,
- struct ospf6_interface *oi)
+void ospf6_flood_interface(struct ospf6_neighbor *from, struct ospf6_lsa *lsa,
+ struct ospf6_interface *oi)
{
struct listnode *node, *nnode;
struct ospf6_neighbor *on;
zlog_debug(
"Requesting the same, remove it, next neighbor");
if (req == on->last_ls_req) {
+ /* sanity check refcount */
+ assert(req->lock >= 2);
ospf6_lsa_unlock(req);
on->last_ls_req = NULL;
}
ospf6_lsa_unlock(req);
on->last_ls_req = NULL;
}
- ospf6_lsdb_remove(req,
- on->request_list);
+ if (req)
+ ospf6_lsdb_remove(req,
+ on->request_list);
ospf6_check_nbr_loading(on);
/* fall through */
}
continue;
}
- /* (d) add retrans-list, schedule retransmission */
- if (is_debug)
- zlog_debug("Add retrans-list of this neighbor");
- ospf6_increment_retrans_count(lsa);
- ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->retrans_list);
- thread_add_timer(master, ospf6_lsupdate_send_neighbor, on,
- on->ospf6_if->rxmt_interval,
- &on->thread_send_lsupdate);
- retrans_added++;
+ if (ospf6->inst_shutdown) {
+ if (is_debug)
+ zlog_debug(
+ "%s: Send LSA %s (age %d) update now",
+ __PRETTY_FUNCTION__, lsa->name,
+ ntohs(lsa->header->age));
+ ospf6_lsupdate_send_neighbor_now(on, lsa);
+ continue;
+ } else {
+ /* (d) add retrans-list, schedule retransmission */
+ if (is_debug)
+ zlog_debug("Add retrans-list of this neighbor");
+ ospf6_increment_retrans_count(lsa);
+ ospf6_lsdb_add(ospf6_lsa_copy(lsa), on->retrans_list);
+ thread_add_timer(master, ospf6_lsupdate_send_neighbor,
+ on, on->ospf6_if->rxmt_interval,
+ &on->thread_send_lsupdate);
+ retrans_added++;
+ }
}
/* (2) examin next interface if not added to retrans-list */
zlog_debug("Received is duplicated LSA");
SET_FLAG(new->flag, OSPF6_LSA_DUPLICATE);
}
+ if (old->header->adv_router
+ == from->ospf6_if->area->ospf6->router_id
+ && OSPF6_LSA_IS_MAXAGE(new)) {
+ ospf6_acknowledge_lsa(new, ismore_recent, from);
+ ospf6_lsa_delete(new);
+ if (is_debug)
+ zlog_debug(
+ "%s: Received is self orig MAXAGE LSA %s, discard (ismore_recent %d)",
+ __PRETTY_FUNCTION__, old->name,
+ ismore_recent);
+ return;
+ }
}
/* if no database copy or received is more recent */
"Send back directly and then discard");
}
+ /* Neighbor router sent recent age for LSA,
+ * Router could be restarted while current copy is
+ * MAXAGEd and not removed.*/
+ if (OSPF6_LSA_IS_MAXAGE(old)
+ && !OSPF6_LSA_IS_MAXAGE(new)) {
+
+ if (is_debug)
+ zlog_debug(
+ "%s: Current copy of LSA %s is MAXAGE, but new has recent Age.",
+ old->name, __PRETTY_FUNCTION__);
+
+ ospf6_lsa_purge(old);
+ if (new->header->adv_router
+ != from->ospf6_if->area->ospf6->router_id)
+ ospf6_flood(from, new);
+
+ ospf6_install_lsa(new);
+ return;
+ }
+
/* XXX, MinLSArrival check !? RFC 2328 13 (8) */
ospf6_lsdb_add(ospf6_lsa_copy(old),
from->lsupdate_list);
thread_add_event(master, ospf6_lsupdate_send_neighbor,
from, 0, &from->thread_send_lsupdate);
+
ospf6_lsa_delete(new);
return;
}
}
}
-
DEFUN (debug_ospf6_flooding,
debug_ospf6_flooding_cmd,
"debug ospf6 flooding",
projects / mirror_frr.git / blobdiff