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authorFilip Varga <fivarga@cisco.com>2020-02-13 14:52:18 +0100
committerOle Trøan <otroan@employees.org>2020-02-20 09:29:41 +0000
commit98301bd5603ce691d809759ec444641953cb5caa (patch)
tree00db0e0d15d4faf4d5e3788df736301379e48e9b /src/plugins/nat/nat44
parent1284f8c71da8ec35cba04351cf62cba7bdd7f847 (diff)
nat: user deletion function & extra metrics
Type: improvement Signed-off-by: Filip Varga <fivarga@cisco.com> Change-Id: Ia5dbfe864c18e953ff49147a9a4684d2ca14b96e
Diffstat (limited to 'src/plugins/nat/nat44')
-rw-r--r--src/plugins/nat/nat44/inlines.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/plugins/nat/nat44/inlines.h b/src/plugins/nat/nat44/inlines.h
index 52dd37c9321..0c8487b473d 100644
--- a/src/plugins/nat/nat44/inlines.h
+++ b/src/plugins/nat/nat44/inlines.h
@@ -41,6 +41,74 @@ nat44_session_cleanup (snat_session_t * s, u32 thread_index)
}
static_always_inline void
+nat44_user_del_sessions (snat_user_t * u, u32 thread_index)
+{
+ dlist_elt_t *elt;
+ snat_session_t *s;
+
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
+
+ // 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);
+ nat44_session_cleanup (s, thread_index);
+ }
+}
+
+static_always_inline int
+nat44_user_del (ip4_address_t * addr, u32 fib_index)
+{
+ int rv = 1;
+
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+
+ snat_user_key_t user_key;
+ clib_bihash_kv_8_8_t kv, value;
+
+ user_key.addr.as_u32 = addr->as_u32;
+ user_key.fib_index = fib_index;
+ kv.key = user_key.as_u64;
+
+ if (sm->num_workers > 1)
+ {
+ /* *INDENT-OFF* */
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ nat44_user_del_sessions (
+ pool_elt_at_index (tsm->users, value.value),
+ tsm->thread_index);
+ rv = 0;
+ break;
+ }
+ }
+ /* *INDENT-ON* */
+ }
+ else
+ {
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ nat44_user_del_sessions (pool_elt_at_index
+ (tsm->users, value.value),
+ tsm->thread_index);
+ rv = 0;
+ }
+ }
+ return rv;
+}
+
+static_always_inline void
nat44_user_try_cleanup (snat_user_t * u, u32 thread_index, f64 now)
{
dlist_elt_t *elt;