#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;
}
}
dst_address);
ip0->checksum = ip_csum_fold (sum0);
+ old_port0 = udp0->src_port;
+ new_port0 = udp0->src_port = s0->out2in.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->src_port;
- new_port0 = tcp0->src_port = s0->out2in.port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
dst_address);
(sm, s0, tcp0, thread_index))
goto trace00;
}
+ else if (udp0->checksum)
+ {
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
+ dst_address);
+ sum0 = ip_csum_update (sum0, old_port0, new_port0, ip4_header_t,
+ length);
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
+ {
+ sum0 = ip_csum_update (sum0, ip0->dst_address.as_u32,
+ s0->ext_host_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, tcp0->dst_port,
+ s0->ext_host_port, ip4_header_t,
+ length);
+ udp0->dst_port = s0->ext_host_port;
+ ip0->dst_address.as_u32 = s0->ext_host_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ udp_packets++;
+ }
else
{
- udp0->src_port = s0->out2in.port;
- udp0->checksum = 0;
if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->dst_port = s0->ext_host_port;
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;
}
}
dst_address);
ip1->checksum = ip_csum_fold (sum1);
+ old_port1 = udp1->src_port;
+ new_port1 = udp1->src_port = s1->out2in.port;
+
if (PREDICT_TRUE (proto1 == SNAT_PROTOCOL_TCP))
{
- old_port1 = tcp1->src_port;
- new_port1 = tcp1->src_port = s1->out2in.port;
-
sum1 = tcp1->checksum;
sum1 = ip_csum_update (sum1, old_addr1, new_addr1, ip4_header_t,
dst_address);
(sm, s1, tcp1, thread_index))
goto trace01;
}
+ else if (udp1->checksum)
+ {
+ sum1 = udp1->checksum;
+ sum1 = ip_csum_update (sum1, old_addr1, new_addr1, ip4_header_t,
+ dst_address);
+ sum1 = ip_csum_update (sum1, old_port1, new_port1, ip4_header_t,
+ length);
+
+ if (PREDICT_FALSE (is_twice_nat_session (s1)))
+ {
+ sum1 = ip_csum_update (sum1, ip1->dst_address.as_u32,
+ s1->ext_host_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum1 = ip_csum_update (sum1, tcp1->dst_port,
+ s1->ext_host_port, ip4_header_t,
+ length);
+ udp1->dst_port = s1->ext_host_port;
+ ip1->dst_address.as_u32 = s1->ext_host_addr.as_u32;
+ }
+ udp1->checksum = ip_csum_fold (sum1);
+ udp_packets++;
+ }
else
{
- udp1->src_port = s1->out2in.port;
- udp1->checksum = 0;
if (PREDICT_FALSE (is_twice_nat_session (s1)))
{
udp1->dst_port = s1->ext_host_port;
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;
}
}
dst_address);
ip0->checksum = ip_csum_fold (sum0);
+ old_port0 = udp0->src_port;
+ new_port0 = udp0->src_port = s0->out2in.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->src_port;
- new_port0 = tcp0->src_port = s0->out2in.port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
dst_address);
(sm, s0, tcp0, thread_index))
goto trace0;
}
+ else if (udp0->checksum)
+ {
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
+ dst_address);
+ sum0 = ip_csum_update (sum0, old_port0, new_port0, ip4_header_t,
+ length);
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
+ {
+ sum0 = ip_csum_update (sum0, ip0->dst_address.as_u32,
+ s0->ext_host_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, tcp0->dst_port,
+ s0->ext_host_port, ip4_header_t,
+ length);
+ udp0->dst_port = s0->ext_host_port;
+ ip0->dst_address.as_u32 = s0->ext_host_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ udp_packets++;
+ }
else
{
- udp0->src_port = s0->out2in.port;
- udp0->checksum = 0;
if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->dst_port = s0->ext_host_port;
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,
vlib_node_increment_counter (vm, stats_node_index,
NAT_IN2OUT_ED_ERROR_TCP_PACKETS, tcp_packets);
vlib_node_increment_counter (vm, stats_node_index,
- NAT_IN2OUT_ED_ERROR_UDP_PACKETS, tcp_packets);
+ NAT_IN2OUT_ED_ERROR_UDP_PACKETS, udp_packets);
vlib_node_increment_counter (vm, stats_node_index,
NAT_IN2OUT_ED_ERROR_ICMP_PACKETS,
icmp_packets);
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;
if (PREDICT_FALSE (ip4_is_first_fragment (ip0)))
{
+ old_port0 = udp0->src_port;
+ new_port0 = udp0->src_port = s0->out2in.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->src_port;
- tcp0->src_port = s0->out2in.port;
- new_port0 = tcp0->src_port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
}
tcp0->checksum = ip_csum_fold (sum0);
}
+ else if (udp0->checksum)
+ {
+ sum0 = udp0->checksum;
+ sum0 =
+ ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
+ dst_address);
+ sum0 =
+ ip_csum_update (sum0, old_port0, new_port0, ip4_header_t,
+ length);
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
+ {
+ sum0 = ip_csum_update (sum0, ip0->dst_address.as_u32,
+ s0->ext_host_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, tcp0->dst_port,
+ s0->ext_host_port, ip4_header_t,
+ length);
+ udp0->dst_port = s0->ext_host_port;
+ ip0->dst_address.as_u32 = s0->ext_host_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ }
else
{
- old_port0 = udp0->src_port;
- udp0->src_port = s0->out2in.port;
- udp0->checksum = 0;
if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->dst_port = s0->ext_host_port;
}
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* */
Code Review / vpp.git / blobdiff