void
isis_adj_state_change (struct isis_adjacency *adj, enum isis_adj_state state,
const char *reason)
{
int old_state;
int level = adj->level;
struct isis_circuit *circuit;
old_state = adj->adj_state;
adj->adj_state = state;
circuit = adj->circuit;
Log(LOG_DEBUG, "DEBUG ( default/core/ISIS ): ISIS-Adj (%s): Adjacency state change %d->%d: %s\n",
circuit->area->area_tag, old_state, state, reason ? reason : "unspecified");
if (state == ISIS_ADJ_UP)
{
/* update counter & timers for debugging purposes */
adj->last_flap = time (NULL);
adj->flaps++;
/* 7.3.17 - going up on P2P -> send CSNP */
send_csnp (circuit, 1);
send_csnp (circuit, 2);
}
else if (state == ISIS_ADJ_DOWN)
{ /* p2p interface */
adj->circuit->u.p2p.neighbor = NULL;
isis_delete_adj (adj, NULL);
}
return;
}
void
isis_adj_state_change (struct isis_adjacency *adj, enum isis_adj_state state,
const char *reason)
{
int old_state;
int level = adj->level;
struct isis_circuit *circuit;
old_state = adj->adj_state;
adj->adj_state = state;
circuit = adj->circuit;
if (isis->debugs & DEBUG_ADJ_PACKETS)
{
zlog_debug ("ISIS-Adj (%s): Adjacency state change %d->%d: %s",
circuit->area->area_tag,
old_state, state, reason ? reason : "unspecified");
}
if (circuit->circ_type == CIRCUIT_T_BROADCAST)
{
if (state == ISIS_ADJ_UP)
circuit->upadjcount[level - 1]++;
if (state == ISIS_ADJ_DOWN)
{
isis_delete_adj (adj, adj->circuit->u.bc.adjdb[level - 1]);
circuit->upadjcount[level - 1]--;
}
list_delete_all_node (circuit->u.bc.lan_neighs[level - 1]);
isis_adj_build_neigh_list (circuit->u.bc.adjdb[level - 1],
circuit->u.bc.lan_neighs[level - 1]);
}
else if (state == ISIS_ADJ_UP)
{ /* p2p interface */
if (adj->sys_type == ISIS_SYSTYPE_UNKNOWN)
send_hello (circuit, 1);
/* update counter & timers for debugging purposes */
adj->last_flap = time (NULL);
adj->flaps++;
/* 7.3.17 - going up on P2P -> send CSNP */
/* FIXME: yup, I know its wrong... but i will do it! (for now) */
send_csnp (circuit, 1);
send_csnp (circuit, 2);
}
else if (state == ISIS_ADJ_DOWN)
{ /* p2p interface */
adj->circuit->u.p2p.neighbor = NULL;
isis_delete_adj (adj, NULL);
}
return;
}
void
isis_adj_state_change (struct isis_adjacency *adj, enum isis_adj_state new_state,
const char *reason)
{
int old_state;
int level;
struct isis_circuit *circuit;
old_state = adj->adj_state;
adj->adj_state = new_state;
circuit = adj->circuit;
if (isis->debugs & DEBUG_ADJ_PACKETS)
{
zlog_debug ("ISIS-Adj (%s): Adjacency state change %d->%d: %s",
circuit->area->area_tag,
old_state, new_state, reason ? reason : "unspecified");
}
if (circuit->area->log_adj_changes)
{
const char *adj_name;
struct isis_dynhn *dyn;
dyn = dynhn_find_by_id (adj->sysid);
if (dyn)
adj_name = (const char *)dyn->name.name;
else
adj_name = adj->sysid ? sysid_print (adj->sysid) : "unknown";
zlog_info ("%%ADJCHANGE: Adjacency to %s (%s) changed from %s to %s, %s",
adj_name,
adj->circuit->interface->name,
adj_state2string (old_state),
adj_state2string (new_state),
reason ? reason : "unspecified");
}
if (circuit->circ_type == CIRCUIT_T_BROADCAST)
{
for (level = IS_LEVEL_1; level <= IS_LEVEL_2; level++)
{
if ((adj->level & level) == 0)
continue;
if (new_state == ISIS_ADJ_UP)
{
circuit->upadjcount[level - 1]++;
isis_event_adjacency_state_change (adj, new_state);
/* update counter & timers for debugging purposes */
adj->last_flap = time (NULL);
adj->flaps++;
}
else if (new_state == ISIS_ADJ_DOWN)
{
listnode_delete (circuit->u.bc.adjdb[level - 1], adj);
circuit->upadjcount[level - 1]--;
if (circuit->upadjcount[level - 1] == 0)
{
/* Clean lsp_queue when no adj is up. */
if (circuit->lsp_queue)
list_delete_all_node (circuit->lsp_queue);
}
isis_event_adjacency_state_change (adj, new_state);
isis_delete_adj (adj);
}
if (circuit->u.bc.lan_neighs[level - 1])
{
list_delete_all_node (circuit->u.bc.lan_neighs[level - 1]);
isis_adj_build_neigh_list (circuit->u.bc.adjdb[level - 1],
circuit->u.bc.lan_neighs[level - 1]);
}
/* On adjacency state change send new pseudo LSP if we are the DR */
if (circuit->u.bc.is_dr[level - 1])
lsp_regenerate_schedule_pseudo (circuit, level);
}
}
else if (circuit->circ_type == CIRCUIT_T_P2P)
{
for (level = IS_LEVEL_1; level <= IS_LEVEL_2; level++)
{
if ((adj->level & level) == 0)
continue;
if (new_state == ISIS_ADJ_UP)
{
circuit->upadjcount[level - 1]++;
isis_event_adjacency_state_change (adj, new_state);
if (adj->sys_type == ISIS_SYSTYPE_UNKNOWN)
send_hello (circuit, level);
/* update counter & timers for debugging purposes */
adj->last_flap = time (NULL);
adj->flaps++;
/* 7.3.17 - going up on P2P -> send CSNP */
/* FIXME: yup, I know its wrong... but i will do it! (for now) */
send_csnp (circuit, level);
}
else if (new_state == ISIS_ADJ_DOWN)
{
if (adj->circuit->u.p2p.neighbor == adj)
adj->circuit->u.p2p.neighbor = NULL;
circuit->upadjcount[level - 1]--;
if (circuit->upadjcount[level - 1] == 0)
{
/* Clean lsp_queue when no adj is up. */
if (circuit->lsp_queue)
list_delete_all_node (circuit->lsp_queue);
}
isis_event_adjacency_state_change (adj, new_state);
isis_delete_adj (adj);
}
}
}
return;
}
