int
oneway_received (struct thread *thread)
{
struct ospf6_neighbor *on;
struct ospf6_lsa *lsa;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state < OSPF6_NEIGHBOR_TWOWAY)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *1Way-Received*", on->name);
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_INIT, on);
thread_add_event (master, neighbor_change, on->ospf6_if, 0);
ospf6_lsdb_remove_all (on->summary_list);
ospf6_lsdb_remove_all (on->request_list);
for (lsa = ospf6_lsdb_head (on->retrans_list); lsa;
lsa = ospf6_lsdb_next (lsa))
{
ospf6_decrement_retrans_count (lsa);
ospf6_lsdb_remove (lsa, on->retrans_list);
}
THREAD_OFF (on->thread_send_dbdesc);
THREAD_OFF (on->thread_send_lsreq);
THREAD_OFF (on->thread_send_lsupdate);
THREAD_OFF (on->thread_send_lsack);
return 0;
}
int
exchange_done (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state != OSPF6_NEIGHBOR_EXCHANGE)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *ExchangeDone*", on->name);
THREAD_OFF (on->thread_send_dbdesc);
ospf6_lsdb_remove_all (on->dbdesc_list);
/* XXX
thread_add_timer (master, ospf6_neighbor_last_dbdesc_release, on,
on->ospf6_if->dead_interval);
*/
if (on->request_list->count == 0)
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_FULL, on);
else
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_LOADING, on);
return 0;
}
int
bad_lsreq (struct thread *thread)
{
struct ospf6_neighbor *on;
struct ospf6_lsa *lsa;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state < OSPF6_NEIGHBOR_EXCHANGE)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *BadLSReq*", on->name);
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_EXSTART, on);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT);
ospf6_lsdb_remove_all (on->summary_list);
ospf6_lsdb_remove_all (on->request_list);
for (lsa = ospf6_lsdb_head (on->retrans_list); lsa;
lsa = ospf6_lsdb_next (lsa))
{
ospf6_decrement_retrans_count (lsa);
ospf6_lsdb_remove (lsa, on->retrans_list);
}
THREAD_OFF (on->thread_send_dbdesc);
on->thread_send_dbdesc =
thread_add_event (master, ospf6_dbdesc_send, on, 0);
return 0;
}
int
twoway_received (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state > OSPF6_NEIGHBOR_INIT)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *2Way-Received*", on->name);
thread_add_event (master, neighbor_change, on->ospf6_if, 0);
if (! need_adjacency (on))
{
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_TWOWAY, on);
return 0;
}
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_EXSTART, on);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT);
THREAD_OFF (on->thread_send_dbdesc);
on->thread_send_dbdesc =
thread_add_event (master, ospf6_dbdesc_send, on, 0);
return 0;
}
static void
ospf6_neighbor_state_change (u_char next_state, struct ospf6_neighbor *on)
{
u_char prev_state;
prev_state = on->state;
on->state = next_state;
if (prev_state == next_state)
return;
gettimeofday (&on->last_changed, (struct timezone *) NULL);
/* log */
if (IS_OSPF6_DEBUG_NEIGHBOR (STATE))
{
zlog_info ("Neighbor state change %s: [%s]->[%s]", on->name,
ospf6_neighbor_state_str[prev_state],
ospf6_neighbor_state_str[next_state]);
}
if (prev_state == OSPF6_NEIGHBOR_FULL || next_state == OSPF6_NEIGHBOR_FULL)
{
OSPF6_ROUTER_LSA_SCHEDULE (on->ospf6_if->area);
if (on->ospf6_if->state == OSPF6_INTERFACE_DR)
{
OSPF6_NETWORK_LSA_SCHEDULE (on->ospf6_if);
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT (on->ospf6_if);
}
OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB (on->ospf6_if->area);
}
#ifdef XXX
if (prev_state == NBS_FULL || next_state == NBS_FULL)
nbs_full_change (on->ospf6_interface);
/* check for LSAs that already reached MaxAge */
if ((prev_state == OSPF6_NEIGHBOR_EXCHANGE ||
prev_state == OSPF6_NEIGHBOR_LOADING) &&
(next_state != OSPF6_NEIGHBOR_EXCHANGE &&
next_state != OSPF6_NEIGHBOR_LOADING))
{
ospf6_maxage_remover ();
}
#endif /*XXX*/
}
int
ospf6_bfd_down (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *BFD Down*", on->name);
on->drouter = on->prev_drouter = 0;
on->bdrouter = on->prev_bdrouter = 0;
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_DOWN, on);
thread_add_event (master, neighbor_change, on->ospf6_if, 0);
return 0;
}
int
loading_done (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state != OSPF6_NEIGHBOR_LOADING)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *LoadingDone*", on->name);
assert (on->request_list->count == 0);
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_FULL, on);
return 0;
}
int
hello_received (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *HelloReceived*", on->name);
/* reset Inactivity Timer */
THREAD_OFF (on->inactivity_timer);
on->inactivity_timer = thread_add_timer (master, inactivity_timer, on,
on->ospf6_if->dead_interval);
if (on->state <= OSPF6_NEIGHBOR_DOWN)
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_INIT, on);
return 0;
}
int
adj_ok (struct thread *thread)
{
struct ospf6_neighbor *on;
struct ospf6_lsa *lsa;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *AdjOK?*", on->name);
if (on->state == OSPF6_NEIGHBOR_TWOWAY && need_adjacency (on))
{
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_EXSTART, on);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT);
SET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT);
THREAD_OFF (on->thread_send_dbdesc);
on->thread_send_dbdesc =
thread_add_event (master, ospf6_dbdesc_send, on, 0);
}
else if (on->state >= OSPF6_NEIGHBOR_EXSTART &&
! need_adjacency (on))
{
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_TWOWAY, on);
ospf6_lsdb_remove_all (on->summary_list);
ospf6_lsdb_remove_all (on->request_list);
for (lsa = ospf6_lsdb_head (on->retrans_list); lsa;
lsa = ospf6_lsdb_next (lsa))
{
ospf6_decrement_retrans_count (lsa);
ospf6_lsdb_remove (lsa, on->retrans_list);
}
}
return 0;
}
int
inactivity_timer (struct thread *thread)
{
struct ospf6_neighbor *on;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *InactivityTimer*", on->name);
on->inactivity_timer = NULL;
on->drouter = on->prev_drouter = 0;
on->bdrouter = on->prev_bdrouter = 0;
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_DOWN, on);
thread_add_event (master, neighbor_change, on->ospf6_if, 0);
listnode_delete (on->ospf6_if->neighbor_list, on);
ospf6_neighbor_delete (on);
return 0;
}
int
negotiation_done (struct thread *thread)
{
struct ospf6_neighbor *on;
struct ospf6_lsa *lsa;
on = (struct ospf6_neighbor *) THREAD_ARG (thread);
assert (on);
if (on->state != OSPF6_NEIGHBOR_EXSTART)
return 0;
if (IS_OSPF6_DEBUG_NEIGHBOR (EVENT))
zlog_info ("Neighbor Event %s: *NegotiationDone*", on->name);
/* clear ls-list */
ospf6_lsdb_remove_all (on->summary_list);
ospf6_lsdb_remove_all (on->request_list);
for (lsa = ospf6_lsdb_head (on->retrans_list); lsa;
lsa = ospf6_lsdb_next (lsa))
{
ospf6_decrement_retrans_count (lsa);
ospf6_lsdb_remove (lsa, on->retrans_list);
}
/* Interface scoped LSAs */
for (lsa = ospf6_lsdb_head (on->ospf6_if->lsdb); lsa;
lsa = ospf6_lsdb_next (lsa))
{
if (OSPF6_LSA_IS_MAXAGE (lsa))
{
ospf6_increment_retrans_count (lsa);
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->retrans_list);
}
else
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->summary_list);
}
/* Area scoped LSAs */
for (lsa = ospf6_lsdb_head (on->ospf6_if->area->lsdb); lsa;
lsa = ospf6_lsdb_next (lsa))
{
if (OSPF6_LSA_IS_MAXAGE (lsa))
{
ospf6_increment_retrans_count (lsa);
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->retrans_list);
}
else
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->summary_list);
}
/* AS scoped LSAs */
for (lsa = ospf6_lsdb_head (on->ospf6_if->area->ospf6->lsdb); lsa;
lsa = ospf6_lsdb_next (lsa))
{
if (OSPF6_LSA_IS_MAXAGE (lsa))
{
ospf6_increment_retrans_count (lsa);
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->retrans_list);
}
else
ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->summary_list);
}
UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT);
ospf6_neighbor_state_change (OSPF6_NEIGHBOR_EXCHANGE, on);
return 0;
}
