+DECLARE_HOOK(isis_adj_ip_enabled_hook,
+ (struct isis_adjacency *adj, int family), (adj, family))
+DECLARE_HOOK(isis_adj_ip_disabled_hook,
+ (struct isis_adjacency *adj, int family), (adj, family))
+void isis_log_adj_change(struct isis_adjacency *adj,
+ enum isis_adj_state old_state,
+ enum isis_adj_state new_state, const char *reason);
+void isis_adj_state_change(struct isis_adjacency **adj,