#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#define foreach_nat_out2in_ed_error \
-_(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \
-_(OUT2IN_PACKETS, "Good out2in packets processed") \
-_(OUT_OF_PORTS, "Out of ports") \
+_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
+_(OUT2IN_PACKETS, "good out2in packets processed") \
+_(OUT_OF_PORTS, "out of ports") \
_(BAD_ICMP_TYPE, "unsupported ICMP type") \
-_(NO_TRANSLATION, "No translation") \
-_(MAX_SESSIONS_EXCEEDED, "Maximum sessions exceeded") \
-_(DROP_FRAGMENT, "Drop fragment") \
-_(MAX_REASS, "Maximum reassemblies exceeded") \
-_(MAX_FRAG, "Maximum fragments per reassembly exceeded")
+_(NO_TRANSLATION, "no translation") \
+_(MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded") \
+_(DROP_FRAGMENT, "drop fragment") \
+_(MAX_REASS, "maximum reassemblies exceeded") \
+_(MAX_FRAG, "maximum fragments per reassembly exceeded")\
+_(NON_SYN, "non-SYN packet try to create session") \
+_(TCP_PACKETS, "TCP packets") \
+_(UDP_PACKETS, "UDP packets") \
+_(ICMP_PACKETS, "ICMP packets") \
+_(OTHER_PACKETS, "other protocol packets") \
+_(FRAGMENTS, "fragments") \
+_(CACHED_FRAGMENTS, "cached fragments") \
+_(PROCESSED_FRAGMENTS, "processed fragments")
typedef enum
{
s->out2in.port,
s->in2out.fib_index);
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
+
if (is_twice_nat_session (s))
{
for (i = 0; i < vec_len (sm->twice_nat_addresses); i++)
&ctx))
nat_log_notice ("in2out-ed key add failed");
+ snat_ipfix_logging_nat44_ses_create (s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->in2out.protocol,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
+
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
+
return s;
}
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;
stats_node_index = is_slow_path ? nat44_ed_out2in_slowpath_node.index :
nat44_ed_out2in_node.index;
nat44_ed_out2in_unknown_proto (sm, b0, ip0, rx_fib_index0,
thread_index, now, vm,
node);
+ other_packets++;
if (!sm->forwarding_enabled)
{
if (!s0)
next0 = icmp_out2in_ed_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
+ icmp_packets++;
goto trace00;
}
}
if (ip4_is_fragment (ip0))
{
next0 = NAT44_ED_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace00;
}
if (PREDICT_FALSE (identity_nat0))
goto trace00;
+ 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;
+ goto trace00;
+ }
+
/* Create session initiated by host from external network */
s0 = create_session_for_static_mapping_ed (sm, b0, l_key0,
e_key0, node,
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
tcp0->checksum = ip_csum_fold (sum0);
+ tcp_packets++;
if (nat44_set_tcp_session_state_o2i
(sm, s0, tcp0, thread_index))
goto trace00;
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
udp0->checksum = 0;
+ udp_packets++;
}
/* Accounting */
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 != NAT44_ED_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
next1 = NAT44_ED_OUT2IN_NEXT_LOOKUP;
vnet_buffer (b1)->snat.flags = 0;
nat44_ed_out2in_unknown_proto (sm, b1, ip1, rx_fib_index1,
thread_index, now, vm,
node);
+ other_packets++;
if (!sm->forwarding_enabled)
{
if (!s1)
next1 = icmp_out2in_ed_slow_path
(sm, b1, ip1, icmp1, sw_if_index1, rx_fib_index1, node,
next1, now, thread_index, &s1);
+ icmp_packets++;
goto trace01;
}
}
if (ip4_is_fragment (ip1))
{
next1 = NAT44_ED_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace01;
}
if (PREDICT_FALSE (identity_nat1))
goto trace01;
+ 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;
+ goto trace01;
+ }
+
/* Create session initiated by host from external network */
s1 = create_session_for_static_mapping_ed (sm, b1, l_key1,
e_key1, node,
ip1->src_address.as_u32 = s1->ext_host_nat_addr.as_u32;
}
tcp1->checksum = ip_csum_fold (sum1);
+ tcp_packets++;
if (nat44_set_tcp_session_state_o2i
(sm, s1, tcp1, thread_index))
goto trace01;
ip1->src_address.as_u32 = s1->ext_host_nat_addr.as_u32;
}
udp1->checksum = 0;
+ udp_packets++;
}
/* Accounting */
t->session_index = s1 - tsm->sessions;
}
- pkts_processed += next1 != NAT44_ED_OUT2IN_NEXT_DROP;
+ pkts_processed += next1 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
/* verify speculative enqueues, maybe switch current next frame */
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
nat44_ed_out2in_unknown_proto (sm, b0, ip0, rx_fib_index0,
thread_index, now, vm,
node);
+ other_packets++;
if (!sm->forwarding_enabled)
{
if (!s0)
next0 = icmp_out2in_ed_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
+ icmp_packets++;
goto trace0;
}
}
if (ip4_is_fragment (ip0))
{
next0 = NAT44_ED_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace0;
}
if (PREDICT_FALSE (identity_nat0))
goto trace0;
+ 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;
+ goto trace0;
+ }
+
/* Create session initiated by host from external network */
s0 = create_session_for_static_mapping_ed (sm, b0, l_key0,
e_key0, node,
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
tcp0->checksum = ip_csum_fold (sum0);
+ tcp_packets++;
if (nat44_set_tcp_session_state_o2i
(sm, s0, tcp0, thread_index))
goto trace0;
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
udp0->checksum = 0;
+ udp_packets++;
}
/* Accounting */
t->session_index = s0 - tsm->sessions;
}
- pkts_processed += next0 != NAT44_ED_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 == NAT44_ED_OUT2IN_NEXT_LOOKUP;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
vlib_node_increment_counter (vm, stats_node_index,
NAT_OUT2IN_ED_ERROR_OUT2IN_PACKETS,
pkts_processed);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT_OUT2IN_ED_ERROR_TCP_PACKETS, tcp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT_OUT2IN_ED_ERROR_UDP_PACKETS, udp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT_OUT2IN_ED_ERROR_ICMP_PACKETS,
+ icmp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT_OUT2IN_ED_ERROR_OTHER_PACKETS,
+ other_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT_OUT2IN_ED_ERROR_FRAGMENTS, fragments);
return frame->n_vectors;
}
goto trace0;
}
+ 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;
+ goto trace0;
+ }
+
/* Create session initiated by host from external network */
s0 = create_session_for_static_mapping_ed (sm, b0, l_key0,
e_key0, node,
u32 len = vec_len (fragments_to_loopback);
if (len <= VLIB_FRAME_SIZE)
{
- clib_memcpy (from, fragments_to_loopback,
- sizeof (u32) * len);
+ clib_memcpy_fast (from, fragments_to_loopback,
+ sizeof (u32) * len);
n_left_from = len;
vec_reset_length (fragments_to_loopback);
}
else
{
- clib_memcpy (from,
- fragments_to_loopback + (len -
- VLIB_FRAME_SIZE),
- sizeof (u32) * VLIB_FRAME_SIZE);
+ 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;
}
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