- if (PREDICT_FALSE (ip4_is_fragment (ip0)))
- {
- if (PREDICT_FALSE (nat_reass_is_drop_frag (0)))
- return vlib_get_thread_index ();
-
- nat_reass_ip4_t *reass;
- reass = nat_ip4_reass_find (ip0->src_address, ip0->dst_address,
- ip0->fragment_id, ip0->protocol);
-
- if (reass && (reass->thread_index != (u32) ~ 0))
- return reass->thread_index;
-
- if (ip4_is_first_fragment (ip0))
- {
- reass =
- nat_ip4_reass_create (ip0->src_address, ip0->dst_address,
- ip0->fragment_id, ip0->protocol);
- if (!reass)
- goto no_reass;
-
- if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
- {
- m_key.addr = ip0->dst_address;
- m_key.port = clib_net_to_host_u16 (port);
- m_key.protocol = proto;
- m_key.fib_index = rx_fib_index0;
- kv.key = m_key.as_u64;
- if (!clib_bihash_search_8_8
- (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- reass->thread_index = m->workers[0];
- return reass->thread_index;
- }
- }
- reass->thread_index = sm->first_worker_index;
- reass->thread_index +=
- sm->workers[(clib_net_to_host_u16 (port) - 1024) /
- sm->port_per_thread];
- return reass->thread_index;
- }
- else
- return vlib_get_thread_index ();
- }
-
-no_reass: