} \
while (0)
-/* *INDENT-OFF* */
/* Hook up input features */
VNET_FEATURE_INIT (nat_pre_in2out, static) = {
.arc_name = "ip4-unicast",
.version = VPP_BUILD_VER,
.description = "Network Address Translation (NAT)",
};
-/* *INDENT-ON* */
static void nat44_ed_db_init (u32 translations, u32 translation_buckets);
static void nat44_ed_db_free ();
-static u32
-nat44_ed_get_worker_out2in_cb (vlib_buffer_t * b, ip4_header_t * ip,
- u32 rx_fib_index, u8 is_output);
-
-static u32
-nat44_ed_get_worker_in2out_cb (ip4_header_t * ip, u32 rx_fib_index,
- u8 is_output);
-
u32 nat_calc_bihash_buckets (u32 n_elts);
u8 *
vlib_thread_main_t *tm = vlib_get_thread_main ();
/* Check if address already exists */
- /* *INDENT-OFF* */
vec_foreach (ap, twice_nat ? sm->twice_nat_addresses : sm->addresses)
{
if (ap->addr.as_u32 == addr->as_u32)
return VNET_API_ERROR_VALUE_EXIST;
}
}
- /* *INDENT-ON* */
if (twice_nat)
vec_add2 (sm->twice_nat_addresses, ap, 1);
else
ap->fib_index = ~0;
- /* *INDENT-OFF* */
#define _(N, i, n, s) \
clib_memset(ap->busy_##n##_port_refcounts, 0, sizeof(ap->busy_##n##_port_refcounts));\
ap->busy_##n##_ports = 0; \
vec_validate_init_empty (ap->busy_##n##_ports_per_thread, tm->n_vlib_mains - 1, 0);
foreach_nat_protocol
#undef _
- /* *INDENT-ON* */
if (twice_nat)
return 0;
/* Add external address to FIB */
- /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces)
{
if (nat_interface_is_inside (i))
snat_add_del_addr_to_fib (addr, 32, i->sw_if_index, 1);
break;
}
- /* *INDENT-ON* */
return 0;
}
is_snat_address_used_in_static_mapping (snat_main_t * sm, ip4_address_t addr)
{
snat_static_mapping_t *m;
- /* *INDENT-OFF* */
pool_foreach (m, sm->static_mappings)
{
if (is_addr_only_static_mapping (m) ||
if (m->external_addr.as_u32 == addr.as_u32)
return 1;
}
- /* *INDENT-ON* */
return 0;
}
{
snat_session_t *s;
u32 *indexes_to_free = NULL;
- /* *INDENT-OFF* */
pool_foreach (s, tsm->sessions) {
if (s->in2out.fib_index != fib_index ||
s->in2out.addr.as_u32 != l_addr.as_u32)
if (!addr_only)
break;
}
- /* *INDENT-ON* */
u32 *ses_index;
vec_foreach (ses_index, indexes_to_free)
{
{
if (is_identity_static_mapping (m))
{
- /* *INDENT-OFF* */
pool_foreach (local, m->locals)
{
if (local->vrf_id == vrf_id)
return VNET_API_ERROR_VALUE_EXIST;
}
- /* *INDENT-ON* */
pool_get (m->locals, local);
local->vrf_id = vrf_id;
local->fib_index =
ip4_header_t ip = {
.src_address = m->local_addr,
};
- vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index, 0));
+ vec_add1 (m->workers, nat44_ed_get_in2out_worker_index (
+ 0, &ip, m->fib_index, 0));
tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
}
else
if (vrf_id == ~0)
vrf_id = sm->inside_vrf_id;
- /* *INDENT-OFF* */
pool_foreach (local, m->locals)
{
if (local->vrf_id == vrf_id)
find = local - m->locals;
}
- /* *INDENT-ON* */
if (find == ~0)
return VNET_API_ERROR_NO_SUCH_ENTRY;
return 0;
/* Add/delete external address to FIB */
- /* *INDENT-OFF* */
pool_foreach (interface, sm->interfaces)
{
if (nat_interface_is_inside (interface))
snat_add_del_addr_to_fib (&e_addr, 32, interface->sw_if_index, is_add);
break;
}
- /* *INDENT-ON* */
return 0;
}
ip4_header_t ip = {
.src_address = locals[i].addr,
};
- bitmap =
- clib_bitmap_set (bitmap,
- sm->worker_in2out_cb (&ip, m->fib_index, 0),
- 1);
+ bitmap = clib_bitmap_set (
+ bitmap,
+ nat44_ed_get_in2out_worker_index (0, &ip, m->fib_index, 0), 1);
}
}
/* Assign workers */
if (sm->num_workers > 1)
{
- /* *INDENT-OFF* */
clib_bitmap_foreach (i, bitmap)
{
vec_add1(m->workers, i);
}
- /* *INDENT-ON* */
}
}
else
return VNET_API_ERROR_UNSPECIFIED;
}
- /* *INDENT-OFF* */
pool_foreach (local, m->locals)
{
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
sm->fib_src_low);
if (!out2in_only)
{
-init_nat_k(& kv, local->addr, local->port, local->fib_index, m->proto);
- if (clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0))
- {
+ init_nat_k (&kv, local->addr, local->port, local->fib_index,
+ m->proto);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv,
+ 0))
+ {
nat_elog_err (sm, "static_mapping_by_local key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
ip4_header_t ip = {
.src_address = local->addr,
};
- tsm =
- vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, m->fib_index, 0));
+ tsm = vec_elt_at_index (
+ sm->per_thread_data,
+ nat44_ed_get_in2out_worker_index (0, &ip, m->fib_index, 0));
}
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
}
- /* *INDENT-ON* */
if (m->affinity)
nat_affinity_flush_service (m->affinity_per_service_list_head_index);
pool_free (m->locals);
if (!is_lb_static_mapping (m))
return VNET_API_ERROR_INVALID_VALUE;
- /* *INDENT-OFF* */
pool_foreach (local, m->locals)
{
if ((local->addr.as_u32 == l_addr.as_u32) && (local->port == l_port) &&
break;
}
}
- /* *INDENT-ON* */
if (is_add)
{
ip4_header_t ip = {
.src_address = local->addr,
};
- tsm = vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, m->fib_index,
- 0));
+ tsm = vec_elt_at_index (
+ sm->per_thread_data,
+ nat44_ed_get_in2out_worker_index (0, &ip, m->fib_index, 0));
}
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
/* Delete sessions */
- /* *INDENT-OFF* */
pool_foreach (s, tsm->sessions) {
if (!(is_lb_session (s)))
continue;
nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
- /* *INDENT-ON* */
pool_put (m->locals, match_local);
}
vec_free (m->workers);
- /* *INDENT-OFF* */
pool_foreach (local, m->locals)
{
vec_add1 (locals, local - m->locals);
if (sm->num_workers > 1)
{
ip4_header_t ip;
- ip.src_address.as_u32 = local->addr.as_u32,
- bitmap = clib_bitmap_set (bitmap,
- sm->worker_in2out_cb (&ip, local->fib_index, 0),
- 1);
+ ip.src_address.as_u32 = local->addr.as_u32,
+ bitmap = clib_bitmap_set (
+ bitmap,
+ nat44_ed_get_in2out_worker_index (0, &ip, local->fib_index, 0), 1);
}
}
- /* *INDENT-ON* */
ASSERT (vec_len (locals) > 1);
/* Assign workers */
if (sm->num_workers > 1)
{
- /* *INDENT-OFF* */
clib_bitmap_foreach (i, bitmap) { vec_add1(m->workers, i); }
- /* *INDENT-ON* */
}
return 0;
if (delete_sm)
{
ip4_address_t pool_addr = { 0 };
- /* *INDENT-OFF* */
pool_foreach (m, sm->static_mappings)
{
if (m->external_addr.as_u32 == addr.as_u32)
is_identity_static_mapping(m),
pool_addr, 0);
}
- /* *INDENT-ON* */
}
else
{
snat_main_per_thread_data_t *tsm;
snat_main_t *sm = &snat_main;
- /* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
{
vec_foreach (per_vrf_sessions, tsm->per_vrf_sessions_vec)
}
}
}
- /* *INDENT-ON* */
}
void
return VNET_API_ERROR_UNSUPPORTED;
}
- /* *INDENT-OFF* */
pool_foreach (i, sm->output_feature_interfaces)
{
if (i->sw_if_index == sw_if_index)
return VNET_API_ERROR_VALUE_EXIST;
}
}
- /* *INDENT-ON* */
if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast";
if (!is_inside)
{
- /* *INDENT-OFF* */
vec_foreach (outside_fib, sm->outside_fibs)
{
if (outside_fib->fib_index == fib_index)
goto feature_set;
}
}
- /* *INDENT-ON* */
if (!is_del)
{
vec_add2 (sm->outside_fibs, outside_fib, 1);
}
feature_set:
- /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces)
{
if (i->sw_if_index == sw_if_index)
goto fib;
}
}
- /* *INDENT-ON* */
if (is_del)
{
/* Add/delete external addresses to FIB */
fib:
- /* *INDENT-OFF* */
vec_foreach (ap, sm->addresses)
snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
}
- /* *INDENT-ON* */
return 0;
}
return VNET_API_ERROR_UNSUPPORTED;
}
- /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces)
{
if (i->sw_if_index == sw_if_index)
return VNET_API_ERROR_VALUE_EXIST;
}
}
- /* *INDENT-ON* */
update_per_vrf_sessions_vec (fib_index, is_del);
if (!is_inside)
{
- /* *INDENT-OFF* */
vec_foreach (outside_fib, sm->outside_fibs)
{
if (outside_fib->fib_index == fib_index)
goto feature_set;
}
}
- /* *INDENT-ON* */
if (!is_del)
{
vec_add2 (sm->outside_fibs, outside_fib, 1);
sm->fq_out2in_index =
vlib_frame_queue_main_init (sm->out2in_node_index, 0);
- /* *INDENT-OFF* */
pool_foreach (i, sm->output_feature_interfaces)
{
if (i->sw_if_index == sw_if_index)
goto fib;
}
}
- /* *INDENT-ON* */
if (is_del)
{
if (is_inside)
return 0;
- /* *INDENT-OFF* */
vec_foreach (ap, sm->addresses)
snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
}
- /* *INDENT-ON* */
return 0;
}
return VNET_API_ERROR_INVALID_WORKER;
vec_free (sm->workers);
- /* *INDENT-OFF* */
clib_bitmap_foreach (i, bitmap)
{
vec_add1(sm->workers, i);
sm->per_thread_data[sm->first_worker_index + i].thread_index = i;
j++;
}
- /* *INDENT-ON* */
sm->port_per_thread = (0xffff - 1024) / _vec_len (sm->workers);
return;
}
- /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces)
{
if (i->sw_if_index == sw_if_index)
match = 1;
}
}
- /* *INDENT-ON* */
if (!match)
return;
vlib_node_t *node;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-out2in");
- sm->in2out_node_index = node->index;
+ sm->out2in_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-in2out");
- sm->out2in_node_index = node->index;
+ sm->in2out_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-in2out-output");
sm->in2out_output_node_index = node->index;
sm->outside_fib_index = fib_table_find_or_create_and_lock (
FIB_PROTOCOL_IP4, c.outside_vrf, sm->fib_src_hi);
- sm->worker_in2out_cb = nat44_ed_get_worker_in2out_cb;
- sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb;
-
nat44_ed_db_init (sm->max_translations_per_thread, sm->translation_buckets);
nat_affinity_enable ();
}
int
-snat_static_mapping_match (snat_main_t * sm,
- ip4_address_t match_addr,
- u16 match_port,
- u32 match_fib_index,
- nat_protocol_t match_protocol,
- ip4_address_t * mapping_addr,
- u16 * mapping_port,
- u32 * mapping_fib_index,
- u8 by_external,
- u8 * is_addr_only,
- twice_nat_type_t * twice_nat,
- lb_nat_type_t * lb, ip4_address_t * ext_host_addr,
- u8 * is_identity_nat, snat_static_mapping_t ** out)
+snat_static_mapping_match (vlib_main_t *vm, snat_main_t *sm,
+ ip4_address_t match_addr, u16 match_port,
+ u32 match_fib_index, nat_protocol_t match_protocol,
+ ip4_address_t *mapping_addr, u16 *mapping_port,
+ u32 *mapping_fib_index, u8 by_external,
+ u8 *is_addr_only, twice_nat_type_t *twice_nat,
+ lb_nat_type_t *lb, ip4_address_t *ext_host_addr,
+ u8 *is_identity_nat, snat_static_mapping_t **out)
{
clib_bihash_kv_8_8_t kv, value;
clib_bihash_8_8_t *mapping_hash;
{
if (PREDICT_FALSE (lb != 0))
*lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT;
- if (m->affinity && !nat_affinity_find_and_lock (ext_host_addr[0],
- match_addr,
- match_protocol,
- match_port,
- &backend_index))
+ if (m->affinity && !nat_affinity_find_and_lock (
+ vm, ext_host_addr[0], match_addr,
+ match_protocol, match_port, &backend_index))
{
local = pool_elt_at_index (m->locals, backend_index);
*mapping_addr = local->addr;
.src_address = local->addr,
};
- if (sm->worker_in2out_cb (&ip, m->fib_index, 0) ==
- thread_index)
- {
- vec_add1 (tmp, i);
- }
- }
+ if (nat44_ed_get_in2out_worker_index (0, &ip, m->fib_index,
+ 0) == thread_index)
+ {
+ vec_add1 (tmp, i);
+ }
+ }
ASSERT (vec_len (tmp) != 0);
}
else
return 0;
}
-static u32
-nat44_ed_get_worker_in2out_cb (ip4_header_t *ip, u32 rx_fib_index,
- u8 is_output)
+u32
+nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
+ u32 rx_fib_index, u8 is_output)
{
snat_main_t *sm = &snat_main;
u32 next_worker_index = sm->first_worker_index;
u32 hash;
clib_bihash_kv_16_8_t kv16, value16;
- snat_main_per_thread_data_t *tsm;
- udp_header_t *udp;
-
- if (PREDICT_FALSE (is_output))
- {
- u32 fib_index = sm->outside_fib_index;
- nat_outside_fib_t *outside_fib;
- fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_len = 32,
- .fp_addr = {
- .ip4.as_u32 = ip->dst_address.as_u32,
- }
- ,
- };
-
- udp = ip4_next_header (ip);
- switch (vec_len (sm->outside_fibs))
+ u32 fib_index = rx_fib_index;
+ if (b)
+ {
+ if (PREDICT_FALSE (is_output))
{
- case 0:
fib_index = sm->outside_fib_index;
- break;
- case 1:
- fib_index = sm->outside_fibs[0].fib_index;
- break;
- default:
- /* *INDENT-OFF* */
- vec_foreach (outside_fib, sm->outside_fibs)
- {
- fei = fib_table_lookup (outside_fib->fib_index, &pfx);
- if (FIB_NODE_INDEX_INVALID != fei)
- {
- if (fib_entry_get_resolving_interface (fei) != ~0)
- {
- fib_index = outside_fib->fib_index;
- break;
- }
- }
- }
- /* *INDENT-ON* */
- break;
+ nat_outside_fib_t *outside_fib;
+ fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = 32,
+ .fp_addr = {
+ .ip4.as_u32 = ip->dst_address.as_u32,
+ } ,
+ };
+
+ switch (vec_len (sm->outside_fibs))
+ {
+ case 0:
+ fib_index = sm->outside_fib_index;
+ break;
+ case 1:
+ fib_index = sm->outside_fibs[0].fib_index;
+ break;
+ default:
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ fei = fib_table_lookup (outside_fib->fib_index, &pfx);
+ if (FIB_NODE_INDEX_INVALID != fei)
+ {
+ if (fib_entry_get_resolving_interface (fei) != ~0)
+ {
+ fib_index = outside_fib->fib_index;
+ break;
+ }
+ }
+ }
+ break;
+ }
}
- init_ed_k (&kv16, ip->src_address, udp->src_port, ip->dst_address,
- udp->dst_port, fib_index, ip->protocol);
+ init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ fib_index, ip->protocol);
- if (PREDICT_TRUE (
- !clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
+ if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
- tsm =
- vec_elt_at_index (sm->per_thread_data,
- ed_value_get_thread_index (&value16));
- next_worker_index += tsm->thread_index;
-
- nat_elog_debug_handoff (
- sm, "HANDOFF IN2OUT-OUTPUT-FEATURE (session)", next_worker_index,
- fib_index, clib_net_to_host_u32 (ip->src_address.as_u32),
- clib_net_to_host_u32 (ip->dst_address.as_u32));
+ next_worker_index = ed_value_get_thread_index (&value16);
+ vnet_buffer2 (b)->nat.cached_session_index =
+ ed_value_get_session_index (&value16);
+ goto out;
+ }
- return next_worker_index;
+ // dst NAT
+ init_ed_k (&kv16, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ rx_fib_index, ip->protocol);
+ if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
+ {
+ next_worker_index = ed_value_get_thread_index (&value16);
+ vnet_buffer2 (b)->nat.cached_dst_nat_session_index =
+ ed_value_get_session_index (&value16);
+ goto out;
}
}
else
next_worker_index += sm->workers[hash % _vec_len (sm->workers)];
+out:
if (PREDICT_TRUE (!is_output))
{
nat_elog_debug_handoff (sm, "HANDOFF IN2OUT", next_worker_index,
return next_worker_index;
}
-static u32
-nat44_ed_get_worker_out2in_cb (vlib_buffer_t * b, ip4_header_t * ip,
- u32 rx_fib_index, u8 is_output)
+u32
+nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
+ u32 rx_fib_index, u8 is_output)
{
snat_main_t *sm = &snat_main;
clib_bihash_kv_8_8_t kv, value;
snat_main_per_thread_data_t *tsm;
u32 proto, next_worker_index = 0;
- udp_header_t *udp;
u16 port;
snat_static_mapping_t *m;
u32 hash;
if (PREDICT_TRUE (proto == NAT_PROTOCOL_UDP || proto == NAT_PROTOCOL_TCP))
{
- udp = ip4_next_header (ip);
-
- init_ed_k (&kv16, ip->dst_address, udp->dst_port, ip->src_address,
- udp->src_port, rx_fib_index, ip->protocol);
+ init_ed_k (&kv16, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ rx_fib_index, ip->protocol);
if (PREDICT_TRUE (
!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
goto done;
}
- udp = ip4_next_header (ip);
- port = udp->dst_port;
+ port = vnet_buffer (b)->ip.reass.l4_dst_port;
if (PREDICT_FALSE (ip->protocol == IP_PROTOCOL_ICMP))
{
+ udp_header_t *udp = ip4_next_header (ip);
icmp46_header_t *icmp = (icmp46_header_t *) udp;
icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1);
if (!icmp_type_is_error_message
ip.dst_address.as_u32 = ip.src_address.as_u32 = addr->as_u32;
if (sm->num_workers > 1)
- tsm =
- vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, fib_index, 0));
+ tsm = vec_elt_at_index (
+ sm->per_thread_data,
+ nat44_ed_get_in2out_worker_index (0, &ip, fib_index, 0));
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
return 0;
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat_default_node) = {
.name = "nat-default",
.vector_size = sizeof (u32),
[NAT_NEXT_OUT2IN_CLASSIFY] = "nat44-out2in-worker-handoff",
},
};
-/* *INDENT-ON* */
void
nat_6t_l3_l4_csum_calc (nat_6t_flow_t *f)
Code Review / vpp.git / blobdiff