return 0;
}
-static_always_inline f64
-nat44_minimal_timeout (snat_main_t * sm)
-{
- f64 min_timeout;
-
- min_timeout = clib_min (sm->udp_timeout, sm->icmp_timeout);
- min_timeout = clib_min (min_timeout, sm->icmp_timeout);
- min_timeout = clib_min (min_timeout, sm->tcp_transitory_timeout);
- min_timeout = clib_min (min_timeout, sm->tcp_established_timeout);
-
- return min_timeout;
-}
-
static_always_inline snat_session_t *
nat44_session_reuse_old (snat_main_t * sm, snat_user_t * u,
snat_session_t * s, u32 thread_index, f64 now)
return s;
}
-
static_always_inline snat_session_t *
nat44_session_alloc_new (snat_main_per_thread_data_t * tsm, snat_user_t * u,
f64 now)
elt = pool_elt_at_index (tsm->list_pool, elt->next);
nat44_free_session_data (sm, s, thread_index, 0);
- // TODO: needs refactoring as in nat44_user_session_cleanup
nat44_delete_session (sm, s, thread_index);
}
}
return rv;
}
-static_always_inline u32
-nat44_user_session_cleanup (snat_user_t * u, u32 thread_index, f64 now)
-{
- u32 cleared = 0;
- dlist_elt_t *elt;
- snat_session_t *s;
- u64 sess_timeout_time;
-
- snat_main_t *sm = &snat_main;
- snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
-
- if (now < u->min_session_timeout)
- goto done;
- u->min_session_timeout = now + sm->min_timeout;
-
- // get head
- elt = pool_elt_at_index (tsm->list_pool,
- u->sessions_per_user_list_head_index);
- // get first element
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
-
- while (elt->value != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, elt->value);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
-
- sess_timeout_time = s->last_heard +
- (f64) nat44_session_get_timeout (sm, s);
-
- if (s->tcp_close_timestamp)
- {
- sess_timeout_time =
- clib_min (sess_timeout_time, s->tcp_close_timestamp);
- }
-
- if (now < sess_timeout_time)
- continue;
-
- // do cleanup of this call (refactor for ED NAT44 only)
- nat44_free_session_data (sm, s, thread_index, 0);
-
- clib_dlist_remove (tsm->list_pool, s->per_user_index);
- pool_put_index (tsm->list_pool, s->per_user_index);
- clib_dlist_remove (tsm->global_lru_pool, s->global_lru_index);
- pool_put_index (tsm->global_lru_pool, s->global_lru_index);
- pool_put (tsm->sessions, s);
- vlib_set_simple_counter (&sm->total_sessions, thread_index, 0,
- pool_elts (tsm->sessions));
-
- if (snat_is_session_static (s))
- u->nstaticsessions--;
- else
- u->nsessions--;
-
- cleared++;
- }
-done:
- return cleared;
-}
-
-static_always_inline u32
-nat44_users_cleanup (u32 thread_index, f64 now)
-{
- snat_main_t *sm = &snat_main;
- snat_main_per_thread_data_t *tsm;
-
- u32 cleared = 0;
-
- snat_user_key_t u_key;
- clib_bihash_kv_8_8_t kv;
-
- snat_user_t *u = 0;
- u32 pool_index;
-
- tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
-
- if (now < tsm->min_session_timeout)
- goto done;
- tsm->min_session_timeout = now + sm->min_timeout;
- // consider
- tsm->cleanup_timeout = tsm->min_session_timeout;
-
- pool_index = ~0;
- do
- {
- pool_index = pool_next_index (tsm->users, pool_index);
- if (pool_index == ~0)
- break;
- u = pool_elt_at_index (tsm->users, pool_index);
-
- cleared += nat44_user_session_cleanup (u, thread_index, now);
-
- if (u->nstaticsessions == 0 && u->nsessions == 0)
- {
- u_key.addr.as_u32 = u->addr.as_u32;
- u_key.fib_index = u->fib_index;
- kv.key = u_key.as_u64;
-
- // delete user
- pool_put_index (tsm->list_pool,
- u->sessions_per_user_list_head_index);
- pool_put (tsm->users, u);
- clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 0);
-
- // update total users counter
- vlib_set_simple_counter (&sm->total_users, thread_index, 0,
- pool_elts (tsm->users));
- }
- }
- while (1);
- tsm->cleared += cleared;
- tsm->cleanup_runs++;
-done:
- return cleared;
-}
-
-static_always_inline u32
-nat44_out_of_ports_cleanup (u32 thread_index, f64 now)
-{
- return nat44_users_cleanup (thread_index, now);
-}
-
-static_always_inline u32
-nat44_max_translations_per_user_cleanup (snat_user_t * u, u32 thread_index,
- f64 now)
-{
- return nat44_user_session_cleanup (u, thread_index, now);
-}
-
-static_always_inline u32
-nat44_force_users_cleanup (void)
-{
- snat_main_t *sm = &snat_main;
- snat_main_per_thread_data_t *tsm;
-
- f64 now = vlib_time_now (vlib_get_main ());
- u32 cleared = 0;
-
- if (sm->num_workers > 1)
- {
- /* *INDENT-OFF* */
- vec_foreach (tsm, sm->per_thread_data)
- {
- cleared += nat44_users_cleanup (tsm->thread_index, now);
- }
- /* *INDENT-ON* */
- }
- else
- {
- tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- cleared += nat44_users_cleanup (tsm->thread_index, now);
- }
- return cleared;
-}
-
#endif /* included_nat44_inlines_h__ */
/*
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