#undef _
};
-typedef enum
-{
- NAT_IN2OUT_ED_NEXT_LOOKUP,
- NAT_IN2OUT_ED_NEXT_DROP,
- NAT_IN2OUT_ED_NEXT_ICMP_ERROR,
- NAT_IN2OUT_ED_NEXT_SLOW_PATH,
- NAT_IN2OUT_ED_NEXT_REASS,
- NAT_IN2OUT_ED_N_NEXT,
-} nat_in2out_ed_next_t;
-
typedef struct
{
u32 sw_if_index;
next0 = icmp_in2out (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, thread_index, p_s0, 0);
snat_session_t *s0 = *p_s0;
- if (PREDICT_TRUE (next0 != NAT_IN2OUT_ED_NEXT_DROP && s0))
+ if (PREDICT_TRUE (next0 != NAT_NEXT_DROP && s0))
{
/* Accounting */
nat44_session_update_counters (s0, now,
b->error = node->errors[NAT_IN2OUT_ED_ERROR_MAX_SESSIONS_EXCEEDED];
nat_ipfix_logging_max_sessions (thread_index, sm->max_translations);
nat_elog_notice ("maximum sessions exceeded");
- return NAT_IN2OUT_ED_NEXT_DROP;
+ return NAT_NEXT_DROP;
}
key0.addr = key->l_addr;
{
nat_elog_notice ("addresses exhausted");
b->error = node->errors[NAT_IN2OUT_ED_ERROR_OUT_OF_PORTS];
- return NAT_IN2OUT_ED_NEXT_DROP;
+ return NAT_NEXT_DROP;
}
}
else
if (!tcp_is_init (tcp))
{
b->error = node->errors[NAT_IN2OUT_ED_ERROR_NON_SYN];
- return NAT_IN2OUT_ED_NEXT_DROP;
+ return NAT_NEXT_DROP;
}
}
if (!is_sm)
snat_free_outside_address_and_port (sm->addresses,
thread_index, &key1);
- return NAT_IN2OUT_ED_NEXT_DROP;
+ return NAT_NEXT_DROP;
}
s = nat_ed_session_alloc (sm, u, thread_index, now);
if (!is_sm)
snat_free_outside_address_and_port (sm->addresses,
thread_index, &key1);
- return NAT_IN2OUT_ED_NEXT_DROP;
+ return NAT_NEXT_DROP;
}
user_session_increment (sm, u, is_sm);
if (err != 0)
{
b->error = node->errors[err];
- next = NAT_IN2OUT_ED_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
key.fib_index = rx_fib_index;
if (PREDICT_FALSE (icmp_is_error_message (icmp)))
{
b->error = node->errors[NAT_IN2OUT_ED_ERROR_BAD_ICMP_TYPE];
- next = NAT_IN2OUT_ED_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
next = slow_path_ed (sm, b, rx_fib_index, &kv, &s, node, next,
thread_index, vlib_time_now (sm->vlib_main), 0);
- if (PREDICT_FALSE (next == NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_FALSE (next == NAT_NEXT_DROP))
goto out;
if (!s)
!icmp_is_error_message (icmp)))
{
b->error = node->errors[NAT_IN2OUT_ED_ERROR_BAD_ICMP_TYPE];
- next = NAT_IN2OUT_ED_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
int is_output_feature)
{
u32 n_left_from, *from, *to_next, pkts_processed = 0, stats_node_index;
- nat_in2out_ed_next_t next_index;
+ nat_next_t next_index;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
u32 thread_index = vm->thread_index;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
u32 tcp_packets = 0, udp_packets = 0, icmp_packets = 0, other_packets =
- 0, fragments = 0;
+ 0, fragments = 0, def_slow, def_reass;
+
+ def_slow = is_output_feature ? NAT_NEXT_IN2OUT_ED_OUTPUT_SLOW_PATH :
+ NAT_NEXT_IN2OUT_ED_SLOW_PATH;
+
+ def_reass = is_output_feature ? NAT_NEXT_IN2OUT_ED_OUTPUT_REASS :
+ NAT_NEXT_IN2OUT_ED_REASS;
stats_node_index = is_slow_path ? sm->ed_in2out_slowpath_node_index :
sm->ed_in2out_node_index;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- next0 = NAT_IN2OUT_ED_NEXT_LOOKUP;
-
if (is_output_feature)
- iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
+ {
+ // output feature fast path is enabled on the arc
+ // we need new arc_next feature
+ if (PREDICT_TRUE (!is_slow_path))
+ {
+ vnet_feature_next (&nat_buffer_opaque (b0)->arc_next, b0);
+ vnet_feature_next (&nat_buffer_opaque (b1)->arc_next, b1);
+ }
+
+ iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
+ iph_offset1 = vnet_buffer (b1)->ip.save_rewrite_length;
+ }
+
+ next0 = nat_buffer_opaque (b0)->arc_next;
+ next1 = nat_buffer_opaque (b1)->arc_next;
ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
iph_offset0);
icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = NAT_IN2OUT_ED_NEXT_ICMP_ERROR;
+ next0 = NAT_NEXT_ICMP_ERROR;
goto trace00;
}
thread_index, now, vm,
node);
if (!s0)
- next0 = NAT_IN2OUT_ED_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
other_packets++;
goto trace00;
}
{
if (PREDICT_FALSE (proto0 == ~0))
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace00;
}
if (ip4_is_fragment (ip0))
{
- next0 = NAT_IN2OUT_ED_NEXT_REASS;
+ next0 = def_reass;
fragments++;
goto trace00;
}
if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace00;
}
}
slow_path_ed (sm, b0, rx_fib_index0, &kv0, &s0, node,
next0, thread_index, now, tcp0);
- if (PREDICT_FALSE (next0 == NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_FALSE (next0 == NAT_NEXT_DROP))
goto trace00;
if (PREDICT_FALSE (!s0))
}
else
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace00;
}
}
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 == NAT_IN2OUT_ED_NEXT_LOOKUP;
-
-
- next1 = NAT_IN2OUT_ED_NEXT_LOOKUP;
-
- if (is_output_feature)
- iph_offset1 = vnet_buffer (b1)->ip.save_rewrite_length;
+ pkts_processed += next0 == nat_buffer_opaque (b0)->arc_next;
ip1 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b1) +
iph_offset1);
icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next1 = NAT_IN2OUT_ED_NEXT_ICMP_ERROR;
+ next1 = NAT_NEXT_ICMP_ERROR;
goto trace01;
}
thread_index, now, vm,
node);
if (!s1)
- next1 = NAT_IN2OUT_ED_NEXT_DROP;
+ next1 = NAT_NEXT_DROP;
other_packets++;
goto trace01;
}
{
if (PREDICT_FALSE (proto1 == ~0))
{
- next1 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next1 = def_slow;
goto trace01;
}
if (ip4_is_fragment (ip1))
{
- next1 = NAT_IN2OUT_ED_NEXT_REASS;
+ next1 = def_reass;
fragments++;
goto trace01;
}
if (PREDICT_FALSE (proto1 == SNAT_PROTOCOL_ICMP))
{
- next1 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next1 = def_slow;
goto trace01;
}
}
slow_path_ed (sm, b1, rx_fib_index1, &kv1, &s1, node,
next1, thread_index, now, tcp1);
- if (PREDICT_FALSE (next1 == NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_FALSE (next1 == NAT_NEXT_DROP))
goto trace01;
if (PREDICT_FALSE (!s1))
}
else
{
- next1 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next1 = def_slow;
goto trace01;
}
}
t->session_index = s1 - tsm->sessions;
}
- pkts_processed += next1 == NAT_IN2OUT_ED_NEXT_LOOKUP;
+ pkts_processed += next1 == nat_buffer_opaque (b1)->arc_next;
+
/* verify speculative enqueues, maybe switch current next frame */
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- next0 = NAT_IN2OUT_ED_NEXT_LOOKUP;
if (is_output_feature)
- iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
+ {
+ // output feature fast path is enabled on the arc
+ // we need new arc_next feature
+ if (PREDICT_TRUE (!is_slow_path))
+ vnet_feature_next (&nat_buffer_opaque (b0)->arc_next, b0);
+
+ iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
+ }
+
+ next0 = nat_buffer_opaque (b0)->arc_next;
ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
iph_offset0);
icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = NAT_IN2OUT_ED_NEXT_ICMP_ERROR;
+ next0 = NAT_NEXT_ICMP_ERROR;
goto trace0;
}
thread_index, now, vm,
node);
if (!s0)
- next0 = NAT_IN2OUT_ED_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
other_packets++;
goto trace0;
}
{
if (PREDICT_FALSE (proto0 == ~0))
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace0;
}
if (ip4_is_fragment (ip0))
{
- next0 = NAT_IN2OUT_ED_NEXT_REASS;
+ next0 = def_reass;
fragments++;
goto trace0;
}
if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace0;
}
}
slow_path_ed (sm, b0, rx_fib_index0, &kv0, &s0, node,
next0, thread_index, now, tcp0);
- if (PREDICT_FALSE (next0 == NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_FALSE (next0 == NAT_NEXT_DROP))
goto trace0;
if (PREDICT_FALSE (!s0))
}
else
{
- next0 = NAT_IN2OUT_ED_NEXT_SLOW_PATH;
+ next0 = def_slow;
goto trace0;
}
}
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 == NAT_IN2OUT_ED_NEXT_LOOKUP;
+ pkts_processed += next0 == nat_buffer_opaque (b0)->arc_next;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
return frame->n_vectors;
}
-VLIB_NODE_FN (nat44_ed_in2out_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_ed_in2out_node_fn_inline (vm, node, frame, 0, 0);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_in2out_node) = {
- .name = "nat44-ed-in2out",
- .vector_size = sizeof (u32),
- .format_trace = format_nat_in2out_ed_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
- .error_strings = nat_in2out_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
- },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (nat44_ed_in2out_output_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_ed_in2out_node_fn_inline (vm, node, frame, 0, 1);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_in2out_output_node) = {
- .name = "nat44-ed-in2out-output",
- .vector_size = sizeof (u32),
- .format_trace = format_nat_in2out_ed_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
- .error_strings = nat_in2out_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass-output",
- },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (nat44_ed_in2out_slowpath_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_ed_in2out_node_fn_inline (vm, node, frame, 1, 0);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_in2out_slowpath_node) = {
- .name = "nat44-ed-in2out-slowpath",
- .vector_size = sizeof (u32),
- .format_trace = format_nat_in2out_ed_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
- .error_strings = nat_in2out_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
- },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (nat44_ed_in2out_output_slowpath_node) (vlib_main_t * vm,
- vlib_node_runtime_t *
- node,
- vlib_frame_t * frame)
-{
- return nat44_ed_in2out_node_fn_inline (vm, node, frame, 1, 1);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_in2out_output_slowpath_node) = {
- .name = "nat44-ed-in2out-output-slowpath",
- .vector_size = sizeof (u32),
- .format_trace = format_nat_in2out_ed_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
- .error_strings = nat_in2out_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
- },
-};
-/* *INDENT-ON* */
-
static inline uword
nat44_ed_in2out_reass_node_fn_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
int is_output_feature)
{
u32 n_left_from, *from, *to_next;
- nat_in2out_ed_next_t next_index;
+ nat_next_t next_index;
u32 pkts_processed = 0, cached_fragments = 0;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
b0 = vlib_get_buffer (vm, bi0);
- next0 = NAT_IN2OUT_ED_NEXT_LOOKUP;
+ next0 = nat_buffer_opaque (b0)->arc_next;
sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
rx_fib_index0 =
if (PREDICT_FALSE (nat_reass_is_drop_frag (0)))
{
- next0 = NAT_IN2OUT_ED_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_DROP_FRAGMENT];
goto trace0;
}
if (PREDICT_FALSE (!reass0))
{
- next0 = NAT_IN2OUT_ED_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_MAX_REASS];
nat_elog_notice ("maximum reassemblies exceeded");
goto trace0;
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
- if (PREDICT_TRUE (next0 != NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_TRUE (next0 != NAT_NEXT_DROP))
{
if (s0)
reass0->sess_index = s0 - per_thread_data->sessions;
&s0, node, next0, thread_index, now,
tcp0);
- if (PREDICT_FALSE (next0 == NAT_IN2OUT_ED_NEXT_DROP))
+ if (PREDICT_FALSE (next0 == NAT_NEXT_DROP))
goto trace0;
if (PREDICT_FALSE (!s0))
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_MAX_FRAG];
nat_elog_notice
("maximum fragments per reassembly exceeded");
- next0 = NAT_IN2OUT_ED_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
cached0 = 1;
}
else
{
- pkts_processed += next0 != NAT_IN2OUT_ED_NEXT_DROP;
+ pkts_processed += next0 == nat_buffer_opaque (b0)->arc_next;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
nat_send_all_to_node (vm, fragments_to_drop, node,
&node->errors[NAT_IN2OUT_ED_ERROR_DROP_FRAGMENT],
- NAT_IN2OUT_ED_NEXT_DROP);
+ NAT_NEXT_DROP);
vec_free (fragments_to_drop);
vec_free (fragments_to_loopback);
return frame->n_vectors;
}
+VLIB_NODE_FN (nat44_ed_in2out_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_in2out_node_fn_inline (vm, node, frame, 0, 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_in2out_node) = {
+ .name = "nat44-ed-in2out",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_in2out_ed_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
+ .error_strings = nat_in2out_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN (nat44_ed_in2out_output_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_in2out_node_fn_inline (vm, node, frame, 0, 1);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_in2out_output_node) = {
+ .name = "nat44-ed-in2out-output",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_in2out_ed_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
+ .error_strings = nat_in2out_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN (nat44_ed_in2out_slowpath_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_in2out_node_fn_inline (vm, node, frame, 1, 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_in2out_slowpath_node) = {
+ .name = "nat44-ed-in2out-slowpath",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_in2out_ed_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
+ .error_strings = nat_in2out_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN (nat44_ed_in2out_output_slowpath_node) (vlib_main_t * vm,
+ vlib_node_runtime_t *
+ node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_in2out_node_fn_inline (vm, node, frame, 1, 1);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_in2out_output_slowpath_node) = {
+ .name = "nat44-ed-in2out-output-slowpath",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_in2out_ed_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
+ .error_strings = nat_in2out_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+
VLIB_NODE_FN (nat44_ed_in2out_reass_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
VLIB_REGISTER_NODE (nat44_ed_in2out_reass_node) = {
.name = "nat44-ed-in2out-reass",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_reass_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
.error_strings = nat_in2out_ed_error_strings,
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
- },
};
/* *INDENT-ON* */
VLIB_REGISTER_NODE (nat44_ed_in2out_reass_output_node) = {
.name = "nat44-ed-in2out-reass-output",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_reass_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
.error_strings = nat_in2out_ed_error_strings,
- .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
- .next_nodes = {
- [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
- [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
- [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
- [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
- },
+};
+/* *INDENT-ON* */
+
+static u8 *
+format_nat_pre_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ nat_pre_trace_t *t = va_arg (*args, nat_pre_trace_t *);
+ return format (s, "in2out next_index %d", t->next_index);
+}
+
+VLIB_NODE_FN (nat_pre_in2out_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat_pre_node_fn_inline (vm, node, frame,
+ NAT_NEXT_IN2OUT_ED_FAST_PATH);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat_pre_in2out_node) = {
+ .name = "nat-pre-in2out",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_pre_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = 0,
};
/* *INDENT-ON* */
snat_main_t snat_main;
/* *INDENT-OFF* */
-
/* Hook up input features */
+VNET_FEATURE_INIT (nat_pre_in2out, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat-pre-in2out",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+};
+VNET_FEATURE_INIT (nat_pre_out2in, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat-pre-out2in",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
+};
+VNET_FEATURE_INIT (snat_in2out_worker_handoff, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-in2out-worker-handoff",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+};
+VNET_FEATURE_INIT (snat_out2in_worker_handoff, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-out2in-worker-handoff",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
+};
VNET_FEATURE_INIT (ip4_snat_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out",
.node_name = "nat44-ed-classify",
.runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
-VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "nat44-in2out-worker-handoff",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
-};
-VNET_FEATURE_INIT (ip4_snat_out2in_worker_handoff, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "nat44-out2in-worker-handoff",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
- "ip4-dhcp-client-detect"),
-};
VNET_FEATURE_INIT (ip4_nat_handoff_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-handoff-classify",
else if (sm->deterministic)
feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in";
else if (sm->endpoint_dependent)
- feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in";
+ {
+ feature_name = is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ }
else
feature_name = is_inside ? "nat44-in2out" : "nat44-out2in";
}
if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1)
- sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index,
- NAT_FQ_NELTS);
+ sm->fq_in2out_index =
+ vlib_frame_queue_main_init (sm->handoff_in2out_index, NAT_FQ_NELTS);
if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1)
- sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
- NAT_FQ_NELTS);
+ sm->fq_out2in_index =
+ vlib_frame_queue_main_init (sm->handoff_out2in_index, NAT_FQ_NELTS);
if (!is_inside)
{
else if (sm->endpoint_dependent)
{
del_feature_name = "nat44-ed-classify";
- feature_name = !is_inside ? "nat44-ed-in2out" :
- "nat44-ed-out2in";
+ feature_name = !is_inside ? "nat-pre-in2out" :
+ "nat-pre-out2in";
}
else
{
}
else if (sm->endpoint_dependent)
{
- del_feature_name = !is_inside ? "nat44-ed-in2out" :
- "nat44-ed-out2in";
+ del_feature_name = !is_inside ? "nat-pre-in2out" :
+ "nat-pre-out2in";
+
feature_name = "nat44-ed-classify";
}
else
{
if (sm->endpoint_dependent)
{
- vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in",
+ vnet_feature_enable_disable ("ip4-unicast", "nat-pre-out2in",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output",
sw_if_index, !is_del, 0, 0);
fq:
if (sm->fq_in2out_output_index == ~0 && sm->num_workers > 1)
sm->fq_in2out_output_index =
- vlib_frame_queue_main_init (sm->in2out_output_node_index, 0);
+ vlib_frame_queue_main_init (sm->handoff_in2out_output_index, 0);
if (sm->fq_out2in_index == ~0 && sm->num_workers > 1)
sm->fq_out2in_index =
- vlib_frame_queue_main_init (sm->out2in_node_index, 0);
+ vlib_frame_queue_main_init (sm->handoff_out2in_index, 0);
/* *INDENT-OFF* */
pool_foreach (i, sm->output_feature_interfaces,
node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
sm->error_node_index = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-in2out");
+ sm->pre_in2out_node_index = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-out2in");
+ sm->pre_out2in_node_index = node->index;
+
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-in2out");
+ sm->pre_in2out_node_index = node->index;
+
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-out2in");
+ sm->pre_out2in_node_index = node->index;
+
+ // TODO: output ?? (special node)
+
node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out");
sm->in2out_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out-output");
{
sm->worker_in2out_cb = nat44_ed_get_worker_in2out_cb;
sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb;
+
+ sm->handoff_out2in_index = nat_pre_out2in_node.index;
+ sm->handoff_in2out_index = nat_pre_in2out_node.index;
+ // TODO: test
+ sm->handoff_in2out_output_index = nat44_ed_in2out_output_node.index;
+
sm->in2out_node_index = nat44_ed_in2out_node.index;
sm->in2out_output_node_index = nat44_ed_in2out_output_node.index;
sm->out2in_node_index = nat44_ed_out2in_node.index;
+
sm->icmp_match_in2out_cb = icmp_match_in2out_ed;
sm->icmp_match_out2in_cb = icmp_match_out2in_ed;
nat_affinity_init (vm);
{
sm->worker_in2out_cb = snat_get_worker_in2out_cb;
sm->worker_out2in_cb = snat_get_worker_out2in_cb;
+
+ sm->handoff_out2in_index = snat_in2out_node.index;
+ sm->handoff_in2out_index = snat_out2in_node.index;
+ // TODO: test
+ sm->handoff_in2out_output_index = snat_in2out_output_node.index;
+
sm->in2out_node_index = snat_in2out_node.index;
sm->in2out_output_node_index = snat_in2out_output_node.index;
sm->out2in_node_index = snat_out2in_node.index;
sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
}
+VLIB_NODE_FN (nat_default_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat_default_node) = {
+ .name = "nat-default",
+ .vector_size = sizeof (u32),
+ .format_trace = 0,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = 0,
+ .n_next_nodes = NAT_N_NEXT,
+ .next_nodes = {
+ [NAT_NEXT_DROP] = "error-drop",
+ [NAT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
+ [NAT_NEXT_IN2OUT_PRE] = "nat-pre-in2out",
+ [NAT_NEXT_OUT2IN_PRE] = "nat-pre-out2in",
+ [NAT_NEXT_IN2OUT_ED_FAST_PATH] = "nat44-ed-in2out",
+ [NAT_NEXT_IN2OUT_ED_SLOW_PATH] = "nat44-ed-in2out-slowpath",
+ [NAT_NEXT_IN2OUT_ED_OUTPUT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
+ [NAT_NEXT_IN2OUT_ED_REASS] = "nat44-ed-in2out-reass",
+ [NAT_NEXT_IN2OUT_ED_OUTPUT_REASS] = "nat44-ed-in2out-reass-output",
+ [NAT_NEXT_OUT2IN_ED_FAST_PATH] = "nat44-ed-out2in",
+ [NAT_NEXT_OUT2IN_ED_SLOW_PATH] = "nat44-ed-out2in-slowpath",
+ [NAT_NEXT_OUT2IN_ED_REASS] = "nat44-ed-out2in-reass",
+ },
+};
+/* *INDENT-ON* */
+
/*
* fd.io coding-style-patch-verification: ON
*
/* NAT buffer flags */
#define SNAT_FLAG_HAIRPINNING (1 << 0)
+typedef struct
+{
+ u32 arc_next;
+} nat_buffer_opaque_t;
+
+typedef enum
+{
+ NAT_NEXT_DROP,
+ NAT_NEXT_ICMP_ERROR,
+ NAT_NEXT_IN2OUT_PRE,
+ NAT_NEXT_OUT2IN_PRE,
+ NAT_NEXT_IN2OUT_ED_FAST_PATH,
+ NAT_NEXT_IN2OUT_ED_SLOW_PATH,
+ NAT_NEXT_IN2OUT_ED_OUTPUT_SLOW_PATH,
+ NAT_NEXT_IN2OUT_ED_REASS,
+ NAT_NEXT_IN2OUT_ED_OUTPUT_REASS,
+ NAT_NEXT_OUT2IN_ED_FAST_PATH,
+ NAT_NEXT_OUT2IN_ED_SLOW_PATH,
+ NAT_NEXT_OUT2IN_ED_REASS,
+ NAT_N_NEXT,
+} nat_next_t;
+
+typedef struct
+{
+ u32 next_index;
+} nat_pre_trace_t;
+
+#define nat_buffer_opaque(b) \
+ ((nat_buffer_opaque_t *)((vnet_buffer_opaque2_t *)b->opaque2)->__unused2)
+
+/*
+STATIC_ASSERT (sizeof (nat_buffer_opaque_t) <=
+ STRUCT_SIZE_OF (vnet_buffer_opaque_t, unused),
+ "Custom meta-data too large for vnet_buffer_opaque_t");
+
+#define nat_buffer_opaque(b) \
+ ((nat_buffer_opaque_t *)((u8 *)((b)->opaque) + \
+ STRUCT_OFFSET_OF (vnet_buffer_opaque_t, unused)))*/
+
/* session key (4-tuple) */
typedef struct
{
/* node indexes */
u32 error_node_index;
+ /* handoff fq nodes */
+ u32 handoff_out2in_index;
+ u32 handoff_in2out_index;
+ u32 handoff_in2out_output_index;
+
+ /* respect feature arc nodes */
+ u32 pre_out2in_node_index;
+ u32 pre_in2out_node_index;
+
u32 in2out_node_index;
u32 in2out_output_node_index;
u32 in2out_fast_node_index;
} snat_runtime_t;
extern snat_main_t snat_main;
+
+// nat pre ed next_node feature classification
+extern vlib_node_registration_t nat_default_node;
+extern vlib_node_registration_t nat_pre_in2out_node;
+extern vlib_node_registration_t nat_pre_out2in_node;
+
extern vlib_node_registration_t snat_in2out_node;
extern vlib_node_registration_t snat_in2out_output_node;
extern vlib_node_registration_t snat_out2in_node;
static inline uword
nat44_classify_node_fn_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, int is_ed)
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
nat44_classify_next_t next_index;
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
u32 thread_index = vm->thread_index;
- snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
u32 *fragments_to_drop = 0;
u32 *fragments_to_loopback = 0;
u32 next_in2out = 0, next_out2in = 0, frag_cached = 0;
{
u32 bi0;
vlib_buffer_t *b0;
- u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT, sw_if_index0, rx_fib_index0;
+ u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
ip4_header_t *ip0;
snat_address_t *ap;
snat_session_key_t m_key0;
clib_bihash_kv_8_8_t kv0, value0;
- clib_bihash_kv_16_8_t ed_kv0, ed_value0;
udp_header_t *udp0;
nat_reass_ip4_t *reass0;
u8 cached0 = 0;
ip0 = vlib_buffer_get_current (b0);
udp0 = ip4_next_header (ip0);
- if (is_ed && ip0->protocol != IP_PROTOCOL_ICMP)
+ /* *INDENT-OFF* */
+ vec_foreach (ap, sm->addresses)
+ {
+ if (ip0->dst_address.as_u32 == ap->addr.as_u32)
+ {
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ goto enqueue0;
+ }
+ }
+ /* *INDENT-ON* */
+
+ if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
+ m_key0.addr = ip0->dst_address;
+ m_key0.port = 0;
+ m_key0.protocol = 0;
+ m_key0.fib_index = 0;
+ kv0.key = m_key0.as_u64;
+ /* try to classify the fragment based on IP header alone */
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external,
+ &kv0, &value0))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
+ if (m->local_addr.as_u32 != m->external_addr.as_u32)
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ goto enqueue0;
+ }
if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0))
{
/* process leading fragment/whole packet (with L4 header) */
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 =
- fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
- sw_if_index0);
- make_ed_kv (&ed_kv0, &ip0->src_address, &ip0->dst_address,
- ip0->protocol, rx_fib_index0, udp0->src_port,
- udp0->dst_port);
+ m_key0.port = clib_net_to_host_u16 (udp0->dst_port);
+ m_key0.protocol = ip_proto_to_snat_proto (ip0->protocol);
+ kv0.key = m_key0.as_u64;
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv0, &value0))
+ {
+ m =
+ pool_elt_at_index (sm->static_mappings, value0.value);
+ if (m->local_addr.as_u32 != m->external_addr.as_u32)
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ }
if (ip4_is_fragment (ip0))
{
reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
nat_elog_notice ("maximum reassemblies exceeded");
goto enqueue0;
}
- if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0,
- &ed_value0))
+ /* save classification for future fragments and set past
+ * fragments to be looped over and reprocessed */
+ if (next0 == NAT44_CLASSIFY_NEXT_OUT2IN)
+ reass0->classify_next =
+ NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN;
+ else
+ reass0->classify_next =
+ NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT;
+ nat_ip4_reass_get_frags (reass0,
+ &fragments_to_loopback);
+ }
+ }
+ else
+ {
+ /* process non-first fragment */
+ reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
+ ip0->dst_address,
+ ip0->fragment_id,
+ ip0->protocol,
+ 1,
+ &fragments_to_drop);
+ if (PREDICT_FALSE (!reass0))
+ {
+ next0 = NAT44_CLASSIFY_NEXT_DROP;
+ b0->error =
+ node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
+ nat_elog_notice ("maximum reassemblies exceeded");
+ goto enqueue0;
+ }
+ if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE)
+ /* first fragment still hasn't arrived */
+ {
+ if (nat_ip4_reass_add_fragment
+ (thread_index, reass0, bi0, &fragments_to_drop))
+ {
+ b0->error =
+ node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG];
+ nat_elog_notice
+ ("maximum fragments per reassembly exceeded");
+ next0 = NAT44_CLASSIFY_NEXT_DROP;
+ goto enqueue0;
+ }
+ cached0 = 1;
+ goto enqueue0;
+ }
+ else if (reass0->classify_next ==
+ NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN)
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ else if (reass0->classify_next ==
+ NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT)
+ next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
+ }
+ }
+
+ enqueue0:
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ nat44_classify_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->cached = cached0;
+ if (!cached0)
+ t->next_in2out = next0 == NAT44_CLASSIFY_NEXT_IN2OUT ? 1 : 0;
+ }
+
+ if (cached0)
+ {
+ n_left_to_next++;
+ to_next--;
+ frag_cached++;
+ }
+ else
+ {
+ next_in2out += next0 == NAT44_CLASSIFY_NEXT_IN2OUT;
+ next_out2in += next0 == NAT44_CLASSIFY_NEXT_OUT2IN;
+
+ /* verify speculative enqueue, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ if (n_left_from == 0 && vec_len (fragments_to_loopback))
+ {
+ from = vlib_frame_vector_args (frame);
+ u32 len = vec_len (fragments_to_loopback);
+ if (len <= VLIB_FRAME_SIZE)
+ {
+ clib_memcpy_fast (from, fragments_to_loopback,
+ sizeof (u32) * len);
+ n_left_from = len;
+ vec_reset_length (fragments_to_loopback);
+ }
+ else
+ {
+ clib_memcpy_fast (from, fragments_to_loopback +
+ (len - VLIB_FRAME_SIZE),
+ sizeof (u32) * VLIB_FRAME_SIZE);
+ n_left_from = VLIB_FRAME_SIZE;
+ _vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE;
+ }
+ }
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ nat_send_all_to_node (vm, fragments_to_drop, node, 0,
+ NAT44_CLASSIFY_NEXT_DROP);
+
+ vec_free (fragments_to_drop);
+
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT44_CLASSIFY_ERROR_NEXT_IN2OUT, next_in2out);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT44_CLASSIFY_ERROR_NEXT_OUT2IN, next_out2in);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT44_CLASSIFY_ERROR_FRAG_CACHED, frag_cached);
+
+ return frame->n_vectors;
+}
+
+static inline uword
+nat44_ed_classify_node_fn_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next;
+ nat44_classify_next_t next_index;
+ snat_main_t *sm = &snat_main;
+ snat_static_mapping_t *m;
+ u32 thread_index = vm->thread_index;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
+ u32 *fragments_to_drop = 0;
+ u32 *fragments_to_loopback = 0;
+ u32 next_in2out = 0, next_out2in = 0, frag_cached = 0;
+ u8 in_loopback = 0;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 =
+ NAT_NEXT_IN2OUT_ED_FAST_PATH, sw_if_index0, rx_fib_index0;
+ ip4_header_t *ip0;
+ snat_address_t *ap;
+ snat_session_key_t m_key0;
+ clib_bihash_kv_8_8_t kv0, value0;
+ clib_bihash_kv_16_8_t ed_kv0, ed_value0;
+ udp_header_t *udp0;
+ nat_reass_ip4_t *reass0;
+ u8 cached0 = 0;
+
+ /* speculatively enqueue b0 to the current next frame */
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ ip0 = vlib_buffer_get_current (b0);
+ udp0 = ip4_next_header (ip0);
+
+ if (!in_loopback)
+ {
+ u32 arc_next = 0;
+
+ vnet_feature_next (&arc_next, b0);
+ nat_buffer_opaque (b0)->arc_next = arc_next;
+ }
+
+ if (ip0->protocol != IP_PROTOCOL_ICMP)
+ {
+ if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0))
+ {
+ /* process leading fragment/whole packet (with L4 header) */
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ rx_fib_index0 =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ sw_if_index0);
+ make_ed_kv (&ed_kv0, &ip0->src_address,
+ &ip0->dst_address, ip0->protocol,
+ rx_fib_index0, udp0->src_port, udp0->dst_port);
+ if (ip4_is_fragment (ip0))
+ {
+ reass0 =
+ nat_ip4_reass_find_or_create (ip0->src_address,
+ ip0->dst_address,
+ ip0->fragment_id,
+ ip0->protocol, 1,
+ &fragments_to_drop);
+ if (PREDICT_FALSE (!reass0))
+ {
+ next0 = NAT_NEXT_DROP;
+ b0->error =
+ node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
+ nat_elog_notice ("maximum reassemblies exceeded");
+ goto enqueue0;
+ }
+ if (!clib_bihash_search_16_8
+ (&tsm->in2out_ed, &ed_kv0, &ed_value0))
{
/* session exists so classify as IN2OUT,
* save this information for future fragments and set
else
{
/* process whole packet */
- if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0,
- &ed_value0))
+ if (!clib_bihash_search_16_8
+ (&tsm->in2out_ed, &ed_kv0, &ed_value0))
goto enqueue0;
/* session doesn't exist so continue in code */
}
&fragments_to_drop);
if (PREDICT_FALSE (!reass0))
{
- next0 = NAT44_CLASSIFY_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error =
node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
nat_elog_notice ("maximum reassemblies exceeded");
goto enqueue0;
}
/* check if first fragment has arrived */
- if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE &&
- !(reass0->flags & NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE))
+ if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE
+ && !(reass0->flags &
+ NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE))
{
/* first fragment still hasn't arrived, cache this fragment */
if (nat_ip4_reass_add_fragment
node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG];
nat_elog_notice
("maximum fragments per reassembly exceeded");
- next0 = NAT44_CLASSIFY_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto enqueue0;
}
cached0 = 1;
{
if (ip0->dst_address.as_u32 == ap->addr.as_u32)
{
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
goto enqueue0;
}
}
{
m = pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
goto enqueue0;
}
if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0))
m =
pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
}
if (ip4_is_fragment (ip0))
{
&fragments_to_drop);
if (PREDICT_FALSE (!reass0))
{
- next0 = NAT44_CLASSIFY_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error =
node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
nat_elog_notice ("maximum reassemblies exceeded");
}
/* save classification for future fragments and set past
* fragments to be looped over and reprocessed */
- if (next0 == NAT44_CLASSIFY_NEXT_OUT2IN)
- reass0->classify_next =
- NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN;
+ if (next0 == NAT_NEXT_OUT2IN_ED_FAST_PATH)
+ reass0->classify_next = NAT_NEXT_OUT2IN_ED_REASS;
else
- reass0->classify_next =
- NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT;
+ reass0->classify_next = NAT_NEXT_IN2OUT_ED_REASS;
nat_ip4_reass_get_frags (reass0,
&fragments_to_loopback);
}
&fragments_to_drop);
if (PREDICT_FALSE (!reass0))
{
- next0 = NAT44_CLASSIFY_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error =
node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
nat_elog_notice ("maximum reassemblies exceeded");
node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG];
nat_elog_notice
("maximum fragments per reassembly exceeded");
- next0 = NAT44_CLASSIFY_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto enqueue0;
}
cached0 = 1;
}
else if (reass0->classify_next ==
NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
else if (reass0->classify_next ==
NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT)
- next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
+ next0 = NAT_NEXT_IN2OUT_ED_FAST_PATH;
}
}
vlib_add_trace (vm, node, b0, sizeof (*t));
t->cached = cached0;
if (!cached0)
- t->next_in2out = next0 == NAT44_CLASSIFY_NEXT_IN2OUT ? 1 : 0;
+ t->next_in2out =
+ next0 == NAT_NEXT_IN2OUT_ED_FAST_PATH ? 1 : 0;
}
if (cached0)
}
else
{
- next_in2out += next0 == NAT44_CLASSIFY_NEXT_IN2OUT;
- next_out2in += next0 == NAT44_CLASSIFY_NEXT_OUT2IN;
+ next_in2out += next0 == NAT_NEXT_IN2OUT_ED_FAST_PATH;
+ next_out2in += next0 == NAT_NEXT_OUT2IN_ED_FAST_PATH;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
if (n_left_from == 0 && vec_len (fragments_to_loopback))
{
+ in_loopback = 1;
from = vlib_frame_vector_args (frame);
u32 len = vec_len (fragments_to_loopback);
if (len <= VLIB_FRAME_SIZE)
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
+ return nat44_classify_node_fn_inline (vm, node, frame);
}
/* *INDENT-OFF* */
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame, 1);
+ return nat44_ed_classify_node_fn_inline (vm, node, frame);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat44_ed_classify_node) = {
.name = "nat44-ed-classify",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_classify_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
- .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
- .next_nodes = {
- [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-ed-in2out",
- [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-ed-out2in",
- [NAT44_CLASSIFY_NEXT_DROP] = "error-drop",
- },
};
/* *INDENT-ON* */
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
+ return nat44_classify_node_fn_inline (vm, node, frame);
}
/* *INDENT-OFF* */
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
+ return nat44_classify_node_fn_inline (vm, node, frame);
}
/* *INDENT-OFF* */
#include <vnet/fib/ip4_fib.h>
#include <vppinfra/error.h>
#include <nat/nat.h>
+#include <nat/nat_inlines.h>
typedef struct
{
VLIB_REGISTER_NODE (snat_in2out_worker_handoff_node) = {
.name = "nat44-in2out-worker-handoff",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_handoff_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN(nat44_handoff_error_strings),
.error_strings = nat44_handoff_error_strings,
- .n_next_nodes = 1,
- .next_nodes = {
- [0] = "error-drop",
- },
};
/* *INDENT-ON* */
VLIB_REGISTER_NODE (snat_in2out_output_worker_handoff_node) = {
.name = "nat44-in2out-output-worker-handoff",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_handoff_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN(nat44_handoff_error_strings),
.error_strings = nat44_handoff_error_strings,
- .n_next_nodes = 1,
- .next_nodes = {
- [0] = "error-drop",
- },
};
/* *INDENT-ON* */
VLIB_REGISTER_NODE (snat_out2in_worker_handoff_node) = {
.name = "nat44-out2in-worker-handoff",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_handoff_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN(nat44_handoff_error_strings),
.error_strings = nat44_handoff_error_strings,
- .n_next_nodes = 1,
- .next_nodes = {
- [0] = "error-drop",
- },
};
/* *INDENT-ON* */
#include <nat/nat.h>
#include <nat/nat_ha.h>
+static inline uword
+nat_pre_node_fn_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u32 def_next)
+{
+ u32 n_left_from, *from, *to_next;
+ u16 next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 next0, next1;
+ u32 arc_next0, arc_next1;
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
+ }
+
+ /* speculatively enqueue b0 and b1 to the current next frame */
+ to_next[0] = bi0 = from[0];
+ to_next[1] = bi1 = from[1];
+ from += 2;
+ to_next += 2;
+ n_left_from -= 2;
+ n_left_to_next -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+
+ next0 = def_next;
+ next1 = def_next;
+
+ vnet_feature_next (&arc_next0, b0);
+ vnet_feature_next (&arc_next1, b1);
+
+ nat_buffer_opaque (b0)->arc_next = arc_next0;
+ nat_buffer_opaque (b1)->arc_next = arc_next1;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ nat_pre_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ nat_pre_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+ }
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 next0;
+ u32 arc_next0;
+ u32 bi0;
+ vlib_buffer_t *b0;
+
+ /* speculatively enqueue b0 to the current next frame */
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ next0 = def_next;
+ vnet_feature_next (&arc_next0, b0);
+ nat_buffer_opaque (b0)->arc_next = arc_next0;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ nat_pre_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+
+ /* verify speculative enqueue, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
always_inline u32
ip_proto_to_snat_proto (u8 ip_proto)
{
return 1;
snat_interface_t *i;
- pool_foreach (i, sm->interfaces, (
- {
- /* NAT packet aimed at outside interface */
- if ((nat_interface_is_outside (i))
- && (sw_if_index ==
- i->sw_if_index)) return 0;}
- ));
+ /* *INDENT-OFF* */
+ pool_foreach (i, sm->interfaces, ({
+ /* NAT packet aimed at outside interface */
+ if ((nat_interface_is_outside (i)) && (sw_if_index == i->sw_if_index))
+ return 0;
+ }));
+ /* *INDENT-ON* */
}
return 1;
#undef _
};
-typedef enum
-{
- NAT44_ED_OUT2IN_NEXT_DROP,
- NAT44_ED_OUT2IN_NEXT_LOOKUP,
- NAT44_ED_OUT2IN_NEXT_ICMP_ERROR,
- NAT44_ED_OUT2IN_NEXT_IN2OUT,
- NAT44_ED_OUT2IN_NEXT_SLOW_PATH,
- NAT44_ED_OUT2IN_NEXT_REASS,
- NAT44_ED_OUT2IN_N_NEXT,
-} nat44_ed_out2in_next_t;
-
typedef struct
{
u32 sw_if_index;
next0 = icmp_out2in (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, thread_index, p_s0, 0);
snat_session_t *s0 = *p_s0;
- if (PREDICT_TRUE (next0 != NAT44_ED_OUT2IN_NEXT_DROP && s0))
+ if (PREDICT_TRUE (next0 != NAT_NEXT_DROP && s0))
{
/* Accounting */
nat44_session_update_counters (s0, now,
if (get_icmp_o2i_ed_key (ip, &key))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_UNSUPPORTED_PROTOCOL];
- next = NAT44_ED_OUT2IN_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
key.fib_index = rx_fib_index;
goto out;
}
b->error = node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next = NAT44_ED_OUT2IN_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
else
if (next_src_nat (sm, ip, key.proto, key.l_port, key.r_port,
thread_index, rx_fib_index))
{
- next = NAT44_ED_OUT2IN_NEXT_IN2OUT;
+ next = NAT_NEXT_IN2OUT_ED_FAST_PATH;
goto out;
}
if (sm->num_workers > 1)
(icmp->type != ICMP4_echo_request || !is_addr_only)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_BAD_ICMP_TYPE];
- next = NAT44_ED_OUT2IN_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
if (!s)
{
- next = NAT44_ED_OUT2IN_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
}
!icmp_is_error_message (icmp)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_BAD_ICMP_TYPE];
- next = NAT44_ED_OUT2IN_NEXT_DROP;
+ next = NAT_NEXT_DROP;
goto out;
}
vlib_frame_t * frame, int is_slow_path)
{
u32 n_left_from, *from, *to_next, pkts_processed = 0, stats_node_index;
- nat44_ed_out2in_next_t next_index;
+ nat_next_t next_index;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
u32 thread_index = vm->thread_index;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- next0 = NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ next0 = nat_buffer_opaque (b0)->arc_next;
+ next1 = nat_buffer_opaque (b1)->arc_next;
+
vnet_buffer (b0)->snat.flags = 0;
ip0 = vlib_buffer_get_current (b0);
icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = NAT44_ED_OUT2IN_NEXT_ICMP_ERROR;
+ next0 = NAT_NEXT_ICMP_ERROR;
goto trace00;
}
if (!sm->forwarding_enabled)
{
if (!s0)
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace00;
}
}
{
if (PREDICT_FALSE (proto0 == ~0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace00;
}
if (ip4_is_fragment (ip0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_REASS;
+ next0 = NAT_NEXT_OUT2IN_ED_REASS;
fragments++;
goto trace00;
}
if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace00;
}
}
clib_host_to_net_u16
(UDP_DST_PORT_dhcp_to_client))))
{
- vnet_feature_next (&next0, b0);
goto trace00;
}
{
b0->error =
node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
}
else
{
udp0->src_port, udp0->dst_port,
thread_index, rx_fib_index0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_IN2OUT;
+ next0 = NAT_NEXT_IN2OUT_ED_FAST_PATH;
goto trace00;
}
if (sm->num_workers > 1)
if ((proto0 == SNAT_PROTOCOL_TCP) && !tcp_is_init (tcp0))
{
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace00;
}
if (!s0)
{
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace00;
}
}
else
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace00;
}
}
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ pkts_processed += next0 == nat_buffer_opaque (b0)->arc_next;
- next1 = NAT44_ED_OUT2IN_NEXT_LOOKUP;
vnet_buffer (b1)->snat.flags = 0;
ip1 = vlib_buffer_get_current (b1);
icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next1 = NAT44_ED_OUT2IN_NEXT_ICMP_ERROR;
+ next1 = NAT_NEXT_ICMP_ERROR;
goto trace01;
}
if (!sm->forwarding_enabled)
{
if (!s1)
- next1 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next1 = NAT_NEXT_DROP;
goto trace01;
}
}
{
if (PREDICT_FALSE (proto1 == ~0))
{
- next1 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next1 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace01;
}
if (ip4_is_fragment (ip1))
{
- next1 = NAT44_ED_OUT2IN_NEXT_REASS;
+ next1 = NAT_NEXT_OUT2IN_ED_REASS;
fragments++;
goto trace01;
}
if (PREDICT_FALSE (proto1 == SNAT_PROTOCOL_ICMP))
{
- next1 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next1 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace01;
}
}
clib_host_to_net_u16
(UDP_DST_PORT_dhcp_to_client))))
{
- vnet_feature_next (&next1, b1);
goto trace01;
}
{
b1->error =
node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next1 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next1 = NAT_NEXT_DROP;
}
else
{
udp1->src_port, udp1->dst_port,
thread_index, rx_fib_index1))
{
- next1 = NAT44_ED_OUT2IN_NEXT_IN2OUT;
+ next1 = NAT_NEXT_IN2OUT_ED_FAST_PATH;
goto trace01;
}
if (sm->num_workers > 1)
if ((proto1 == SNAT_PROTOCOL_TCP) && !tcp_is_init (tcp1))
{
b1->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
- next1 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next1 = NAT_NEXT_DROP;
goto trace01;
}
if (!s1)
{
- next1 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next1 = NAT_NEXT_DROP;
goto trace01;
}
}
else
{
- next1 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next1 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace01;
}
}
t->session_index = s1 - tsm->sessions;
}
- pkts_processed += next1 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ pkts_processed += next1 == nat_buffer_opaque (b1)->arc_next;
/* verify speculative enqueues, maybe switch current next frame */
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- next0 = NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ next0 = nat_buffer_opaque (b0)->arc_next;
+
vnet_buffer (b0)->snat.flags = 0;
ip0 = vlib_buffer_get_current (b0);
icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = NAT44_ED_OUT2IN_NEXT_ICMP_ERROR;
+ next0 = NAT_NEXT_ICMP_ERROR;
goto trace0;
}
if (!sm->forwarding_enabled)
{
if (!s0)
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
}
{
if (PREDICT_FALSE (proto0 == ~0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
if (ip4_is_fragment (ip0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_REASS;
+ next0 = NAT_NEXT_OUT2IN_ED_REASS;
fragments++;
goto trace0;
}
if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
}
clib_host_to_net_u16
(UDP_DST_PORT_dhcp_to_client))))
{
- vnet_feature_next (&next0, b0);
goto trace0;
}
{
b0->error =
node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
}
else
{
udp0->src_port, udp0->dst_port,
thread_index, rx_fib_index0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_IN2OUT;
+ next0 = NAT_NEXT_IN2OUT_ED_FAST_PATH;
goto trace0;
}
if (sm->num_workers > 1)
if ((proto0 == SNAT_PROTOCOL_TCP) && !tcp_is_init (tcp0))
{
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
if (!s0)
{
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
}
else
{
- next0 = NAT44_ED_OUT2IN_NEXT_SLOW_PATH;
+ next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
}
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ pkts_processed += next0 == nat_buffer_opaque (b0)->arc_next;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
return frame->n_vectors;
}
-VLIB_NODE_FN (nat44_ed_out2in_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_ed_out2in_node_fn_inline (vm, node, frame, 0);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_out2in_node) = {
- .name = "nat44-ed-out2in",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_ed_out2in_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
- .error_strings = nat_out2in_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT44_ED_OUT2IN_N_NEXT,
- .next_nodes = {
- [NAT44_ED_OUT2IN_NEXT_DROP] = "error-drop",
- [NAT44_ED_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
- [NAT44_ED_OUT2IN_NEXT_SLOW_PATH] = "nat44-ed-out2in-slowpath",
- [NAT44_ED_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT44_ED_OUT2IN_NEXT_IN2OUT] = "nat44-ed-in2out",
- [NAT44_ED_OUT2IN_NEXT_REASS] = "nat44-ed-out2in-reass",
- },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (nat44_ed_out2in_slowpath_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_ed_out2in_node_fn_inline (vm, node, frame, 1);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat44_ed_out2in_slowpath_node) = {
- .name = "nat44-ed-out2in-slowpath",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_ed_out2in_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
- .error_strings = nat_out2in_ed_error_strings,
- .runtime_data_bytes = sizeof (snat_runtime_t),
- .n_next_nodes = NAT44_ED_OUT2IN_N_NEXT,
- .next_nodes = {
- [NAT44_ED_OUT2IN_NEXT_DROP] = "error-drop",
- [NAT44_ED_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
- [NAT44_ED_OUT2IN_NEXT_SLOW_PATH] = "nat44-ed-out2in-slowpath",
- [NAT44_ED_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT44_ED_OUT2IN_NEXT_IN2OUT] = "nat44-ed-in2out",
- [NAT44_ED_OUT2IN_NEXT_REASS] = "nat44-ed-out2in-reass",
- },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (nat44_ed_out2in_reass_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+static inline uword
+nat44_ed_out2in_reass_node_fn_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
- nat44_ed_out2in_next_t next_index;
+ nat_next_t next_index;
u32 pkts_processed = 0;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- next0 = NAT44_ED_OUT2IN_NEXT_LOOKUP;
+ next0 = nat_buffer_opaque (b0)->arc_next;
sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
rx_fib_index0 =
if (PREDICT_FALSE (nat_reass_is_drop_frag (0)))
{
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_DROP_FRAGMENT];
goto trace0;
}
if (PREDICT_FALSE (!reass0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_REASS];
nat_elog_notice ("maximum reassemblies exceeded");
goto trace0;
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
- if (PREDICT_TRUE (next0 != NAT44_ED_OUT2IN_NEXT_DROP))
+ if (PREDICT_TRUE (next0 != NAT_NEXT_DROP))
{
if (s0)
reass0->sess_index = s0 - per_thread_data->sessions;
clib_host_to_net_u16
(UDP_DST_PORT_dhcp_to_client))))
{
- vnet_feature_next (&next0, b0);
goto trace0;
}
{
b0->error =
node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
}
else
{
udp0->src_port, udp0->dst_port,
thread_index, rx_fib_index0))
{
- next0 = NAT44_ED_OUT2IN_NEXT_IN2OUT;
+ next0 = NAT_NEXT_IN2OUT_ED_FAST_PATH;
goto trace0;
}
if (sm->num_workers > 1)
if ((proto0 == SNAT_PROTOCOL_TCP) && !tcp_is_init (tcp0))
{
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
{
b0->error =
node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
reass0->sess_index = s0 - per_thread_data->sessions;
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_FRAG];
nat_elog_notice
("maximum fragments per reassembly exceeded");
- next0 = NAT44_ED_OUT2IN_NEXT_DROP;
+ next0 = NAT_NEXT_DROP;
goto trace0;
}
cached0 = 1;
}
else
{
- pkts_processed += next0 != NAT44_ED_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 != NAT_NEXT_DROP;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
nat_send_all_to_node (vm, fragments_to_drop, node,
&node->errors[NAT_OUT2IN_ED_ERROR_DROP_FRAGMENT],
- NAT44_ED_OUT2IN_NEXT_DROP);
+ NAT_NEXT_DROP);
vec_free (fragments_to_drop);
vec_free (fragments_to_loopback);
return frame->n_vectors;
}
+VLIB_NODE_FN (nat44_ed_out2in_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_out2in_node_fn_inline (vm, node, frame, 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_out2in_node) = {
+ .name = "nat44-ed-out2in",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat44_ed_out2in_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
+ .error_strings = nat_out2in_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN (nat44_ed_out2in_slowpath_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_out2in_node_fn_inline (vm, node, frame, 1);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_out2in_slowpath_node) = {
+ .name = "nat44-ed-out2in-slowpath",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat44_ed_out2in_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
+ .error_strings = nat_out2in_ed_error_strings,
+ .runtime_data_bytes = sizeof (snat_runtime_t),
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN (nat44_ed_out2in_reass_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_ed_out2in_reass_node_fn_inline (vm, node, frame);
+}
+
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat44_ed_out2in_reass_node) = {
.name = "nat44-ed-out2in-reass",
.vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
.format_trace = format_nat44_reass_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
.error_strings = nat_out2in_ed_error_strings,
- .n_next_nodes = NAT44_ED_OUT2IN_N_NEXT,
- .next_nodes = {
- [NAT44_ED_OUT2IN_NEXT_DROP] = "error-drop",
- [NAT44_ED_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
- [NAT44_ED_OUT2IN_NEXT_SLOW_PATH] = "nat44-ed-out2in-slowpath",
- [NAT44_ED_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- [NAT44_ED_OUT2IN_NEXT_IN2OUT] = "nat44-ed-in2out",
- [NAT44_ED_OUT2IN_NEXT_REASS] = "nat44-ed-out2in-reass",
- },
};
/* *INDENT-ON* */
+static u8 *
+format_nat_pre_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ nat_pre_trace_t *t = va_arg (*args, nat_pre_trace_t *);
+ return format (s, "out2in next_index %d", t->next_index);
+}
+
+VLIB_NODE_FN (nat_pre_out2in_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat_pre_node_fn_inline (vm, node, frame,
+ NAT_NEXT_OUT2IN_ED_FAST_PATH);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat_pre_out2in_node) = {
+ .name = "nat-pre-out2in",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat_pre_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = 0,
+ };
+/* *INDENT-ON* */
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / commitdiff