+vrf_table_t *
+nat44_ed_get_vrf_table (u32 table_vrf_id)
+{
+ snat_main_t *sm = &snat_main;
+ vrf_table_t *t;
+
+ pool_foreach (t, sm->vrf_tables)
+ {
+ if (table_vrf_id == t->table_vrf_id)
+ {
+ return t;
+ }
+ }
+ return NULL;
+}
+
+vrf_route_t *
+nat44_ed_get_vrf_route (vrf_table_t *t, u32 vrf_id)
+{
+ vrf_route_t *r;
+
+ pool_foreach (r, t->routes)
+ {
+ if (vrf_id == r->vrf_id)
+ {
+ return r;
+ }
+ }
+ return NULL;
+}
+
+int
+nat44_ed_add_del_vrf_table (u32 table_vrf_id, bool is_add)
+{
+ snat_main_t *sm = &snat_main;
+ vrf_table_t *t;
+ vrf_route_t *r;
+
+ t = nat44_ed_get_vrf_table (table_vrf_id);
+ if (t)
+ {
+ if (is_add)
+ {
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+ pool_foreach (r, t->routes)
+ {
+ fib_table_unlock (r->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
+ }
+ fib_table_unlock (t->table_fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
+
+ pool_free (t->routes);
+ pool_put (sm->vrf_tables, t);
+ }
+ else
+ {
+ if (!is_add)
+ {
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
+ pool_get (sm->vrf_tables, t);
+ clib_memset (t, 0, sizeof (*t));
+ t->table_vrf_id = table_vrf_id;
+ t->table_fib_index = fib_table_find_or_create_and_lock (
+ FIB_PROTOCOL_IP4, table_vrf_id, sm->fib_src_low);
+ }
+
+ return 0;
+}
+
+void
+nat44_ed_del_vrf_tables ()
+{
+ snat_main_t *sm = &snat_main;
+ vrf_table_t *t;
+ vrf_route_t *r;
+
+ pool_foreach (t, sm->vrf_tables)
+ {
+ pool_foreach (r, t->routes)
+ {
+ fib_table_unlock (r->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
+ }
+ fib_table_unlock (t->table_fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
+ pool_free (t->routes);
+ }
+ pool_free (sm->vrf_tables);
+}
+
+int
+nat44_ed_add_del_vrf_route (u32 table_vrf_id, u32 vrf_id, bool is_add)
+{
+ snat_main_t *sm = &snat_main;
+ vrf_table_t *t;
+ vrf_route_t *r;
+
+ t = nat44_ed_get_vrf_table (table_vrf_id);
+ if (!t)
+ {
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
+
+ r = nat44_ed_get_vrf_route (t, vrf_id);
+ if (r)
+ {
+ if (is_add)
+ {
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+ fib_table_unlock (r->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
+ pool_put (t->routes, r);
+ }
+ else
+ {
+ if (!is_add)
+ {
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
+ pool_get (t->routes, r);
+ clib_memset (r, 0, sizeof (*r));
+ r->vrf_id = vrf_id;
+ r->fib_index = fib_table_find_or_create_and_lock (
+ FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low);
+ }
+
+ return 0;
+}
+