#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat44_inlines.h>
+#include <nat/nat_syslog.h>
+#include <nat/nat_ha.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
return s;
}
-vlib_node_registration_t snat_out2in_node;
-vlib_node_registration_t snat_out2in_fast_node;
-vlib_node_registration_t nat44_out2in_reass_node;
-
#define foreach_snat_out2in_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")\
+_(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
{
SNAT_OUT2IN_N_NEXT,
} snat_out2in_next_t;
+#ifndef CLIB_MARCH_VARIANT
int
nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg)
{
{
s_kv.key = s->in2out.as_u64;
if (clib_bihash_add_del_8_8 (&tsm->in2out, &s_kv, 0))
- nat_log_warn ("out2in key del failed");
+ nat_elog_warn ("out2in key del failed");
- snat_ipfix_logging_nat44_ses_delete (s->in2out.addr.as_u32,
+ snat_ipfix_logging_nat44_ses_delete (ctx->thread_index,
+ 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_apmdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port,
+ s->in2out.protocol);
+
+ nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
+ s->ext_host_port, s->out2in.protocol, s->out2in.fib_index,
+ ctx->thread_index);
+
if (!snat_is_session_static (s))
snat_free_outside_address_and_port (sm->addresses, ctx->thread_index,
&s->out2in);
return 0;
}
+#endif
/**
* @brief Create session for static mapping.
udp_header_t *udp0;
nat44_is_idle_session_ctx_t ctx0;
+ nat44_session_try_cleanup (&in2out.addr, in2out.fib_index, thread_index,
+ now);
+
if (PREDICT_FALSE (maximum_sessions_exceeded (sm, thread_index)))
{
b0->error = node->errors[SNAT_OUT2IN_ERROR_MAX_SESSIONS_EXCEEDED];
- nat_log_notice ("maximum sessions exceeded");
+ nat_elog_notice ("maximum sessions exceeded");
return 0;
}
nat_user_get_or_create (sm, &in2out.addr, in2out.fib_index, thread_index);
if (!u)
{
- nat_log_warn ("create NAT user failed");
+ nat_elog_warn ("create NAT user failed");
return 0;
}
- s = nat_session_alloc_or_recycle (sm, u, thread_index);
+ s = nat_session_alloc_or_recycle (sm, u, thread_index, now);
if (!s)
{
nat44_delete_user_with_no_session (sm, u, thread_index);
- nat_log_warn ("create NAT session failed");
+ nat_elog_warn ("create NAT session failed");
return 0;
}
if (clib_bihash_add_or_overwrite_stale_8_8
(&sm->per_thread_data[thread_index].in2out, &kv0,
nat44_i2o_is_idle_session_cb, &ctx0))
- nat_log_notice ("in2out key add failed");
+ nat_elog_notice ("in2out key add failed");
kv0.key = s->out2in.as_u64;
if (clib_bihash_add_or_overwrite_stale_8_8
(&sm->per_thread_data[thread_index].out2in, &kv0,
nat44_o2i_is_idle_session_cb, &ctx0))
- nat_log_notice ("out2in key add failed");
+ nat_elog_notice ("out2in key add failed");
/* log NAT event */
- snat_ipfix_logging_nat44_ses_create (s->in2out.addr.as_u32,
+ snat_ipfix_logging_nat44_ses_create (thread_index,
+ 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_apmadd (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port, &s->out2in.addr,
+ s->out2in.port, s->in2out.protocol);
+
+ nat_ha_sadd (&s->in2out.addr, s->in2out.port, &s->out2in.addr,
+ s->out2in.port, &s->ext_host_addr, s->ext_host_port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ s->in2out.protocol, s->in2out.fib_index, s->flags,
+ thread_index, 0);
+
return s;
}
+#ifndef CLIB_MARCH_VARIANT
static_always_inline
snat_out2in_error_t icmp_get_key (ip4_header_t * ip0,
snat_session_key_t * p_key0)
*(snat_session_t **) d = s0;
return next0;
}
+#endif
+#ifndef CLIB_MARCH_VARIANT
/**
* Get address and port values to be used for ICMP packet translation
*
*p_dont_translate = dont_translate;
return next0;
}
+#endif
+#ifndef CLIB_MARCH_VARIANT
u32
icmp_out2in (snat_main_t * sm,
vlib_buffer_t * b0,
out:
return next0;
}
-
+#endif
static inline u32
icmp_out2in_slow_path (snat_main_t * sm,
/* Accounting */
nat44_session_update_counters (s0, now,
vlib_buffer_length_in_chain
- (sm->vlib_main, b0));
+ (sm->vlib_main, b0), thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s0, thread_index);
}
return 0;
}
-static uword
-snat_out2in_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
snat_out2in_next_t next_index;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
u32 thread_index = vm->thread_index;
+ u32 tcp_packets = 0, udp_packets = 0, icmp_packets = 0, other_packets =
+ 0, fragments = 0;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
next0 = SNAT_OUT2IN_NEXT_DROP;
}
}
+ other_packets++;
goto trace0;
}
if (PREDICT_FALSE (ip4_is_fragment (ip0)))
{
next0 = SNAT_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace0;
}
next0 = icmp_out2in_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
+ icmp_packets++;
goto trace0;
}
dst_address /* changed member */ );
ip0->checksum = ip_csum_fold (sum0);
+ old_port0 = udp0->dst_port;
+ new_port0 = udp0->dst_port = s0->in2out.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->dst_port;
- tcp0->dst_port = s0->in2out.port;
- new_port0 = tcp0->dst_port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
ip4_header_t /* cheat */ ,
length /* changed member */ );
tcp0->checksum = ip_csum_fold (sum0);
+ tcp_packets++;
}
else
{
- old_port0 = udp0->dst_port;
- udp0->dst_port = s0->in2out.port;
- udp0->checksum = 0;
+ if (PREDICT_FALSE (udp0->checksum))
+ {
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
+ ip4_header_t,
+ dst_address /* changed member */ );
+ sum0 = ip_csum_update (sum0, old_port0, new_port0,
+ ip4_header_t /* cheat */ ,
+ length /* changed member */ );
+ udp0->checksum = ip_csum_fold (sum0);
+ }
+ udp_packets++;
}
/* Accounting */
nat44_session_update_counters (s0, now,
- vlib_buffer_length_in_chain (vm,
- b0));
+ vlib_buffer_length_in_chain (vm, b0),
+ thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s0, thread_index);
trace0:
s0 - sm->per_thread_data[thread_index].sessions;
}
- pkts_processed += next0 != SNAT_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 == SNAT_OUT2IN_NEXT_LOOKUP;
ip1 = vlib_buffer_get_current (b1);
next1 = SNAT_OUT2IN_NEXT_DROP;
}
}
+ other_packets++;
goto trace1;
}
if (PREDICT_FALSE (ip4_is_fragment (ip1)))
{
next1 = SNAT_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace1;
}
next1 = icmp_out2in_slow_path
(sm, b1, ip1, icmp1, sw_if_index1, rx_fib_index1, node,
next1, now, thread_index, &s1);
+ icmp_packets++;
goto trace1;
}
dst_address /* changed member */ );
ip1->checksum = ip_csum_fold (sum1);
+ old_port1 = udp1->dst_port;
+ new_port1 = udp1->dst_port = s1->in2out.port;
+
if (PREDICT_TRUE (proto1 == SNAT_PROTOCOL_TCP))
{
- old_port1 = tcp1->dst_port;
- tcp1->dst_port = s1->in2out.port;
- new_port1 = tcp1->dst_port;
-
sum1 = tcp1->checksum;
sum1 = ip_csum_update (sum1, old_addr1, new_addr1,
ip4_header_t,
ip4_header_t /* cheat */ ,
length /* changed member */ );
tcp1->checksum = ip_csum_fold (sum1);
+ tcp_packets++;
}
else
{
- old_port1 = udp1->dst_port;
- udp1->dst_port = s1->in2out.port;
- udp1->checksum = 0;
+ if (PREDICT_FALSE (udp1->checksum))
+ {
+ sum1 = udp1->checksum;
+ sum1 = ip_csum_update (sum1, old_addr1, new_addr1,
+ ip4_header_t,
+ dst_address /* changed member */ );
+ sum1 = ip_csum_update (sum1, old_port1, new_port1,
+ ip4_header_t /* cheat */ ,
+ length /* changed member */ );
+ udp1->checksum = ip_csum_fold (sum1);
+ }
+ udp_packets++;
}
/* Accounting */
nat44_session_update_counters (s1, now,
- vlib_buffer_length_in_chain (vm,
- b1));
+ vlib_buffer_length_in_chain (vm, b1),
+ thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s1, thread_index);
trace1:
s1 - sm->per_thread_data[thread_index].sessions;
}
- pkts_processed += next1 != SNAT_OUT2IN_NEXT_DROP;
+ pkts_processed += next1 == SNAT_OUT2IN_NEXT_LOOKUP;
/* verify speculative enqueues, maybe switch current next frame */
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
next0 = SNAT_OUT2IN_NEXT_DROP;
}
}
+ other_packets++;
goto trace00;
}
if (PREDICT_FALSE (ip4_is_fragment (ip0)))
{
next0 = SNAT_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace00;
}
next0 = icmp_out2in_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, now, thread_index, &s0);
+ icmp_packets++;
goto trace00;
}
dst_address /* changed member */ );
ip0->checksum = ip_csum_fold (sum0);
+ old_port0 = udp0->dst_port;
+ new_port0 = udp0->dst_port = s0->in2out.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->dst_port;
- tcp0->dst_port = s0->in2out.port;
- new_port0 = tcp0->dst_port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
ip4_header_t /* cheat */ ,
length /* changed member */ );
tcp0->checksum = ip_csum_fold (sum0);
+ tcp_packets++;
}
else
{
- old_port0 = udp0->dst_port;
- udp0->dst_port = s0->in2out.port;
- udp0->checksum = 0;
+ if (PREDICT_FALSE (udp0->checksum))
+ {
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
+ ip4_header_t,
+ dst_address /* changed member */ );
+ sum0 = ip_csum_update (sum0, old_port0, new_port0,
+ ip4_header_t /* cheat */ ,
+ length /* changed member */ );
+ udp0->checksum = ip_csum_fold (sum0);
+ }
+ udp_packets++;
}
/* Accounting */
nat44_session_update_counters (s0, now,
- vlib_buffer_length_in_chain (vm,
- b0));
+ vlib_buffer_length_in_chain (vm, b0),
+ thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s0, thread_index);
trace00:
s0 - sm->per_thread_data[thread_index].sessions;
}
- pkts_processed += next0 != SNAT_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 == SNAT_OUT2IN_NEXT_LOOKUP;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, snat_out2in_node.index,
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
SNAT_OUT2IN_ERROR_OUT2IN_PACKETS,
pkts_processed);
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
+ SNAT_OUT2IN_ERROR_TCP_PACKETS, tcp_packets);
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
+ SNAT_OUT2IN_ERROR_UDP_PACKETS, udp_packets);
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
+ SNAT_OUT2IN_ERROR_ICMP_PACKETS, icmp_packets);
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
+ SNAT_OUT2IN_ERROR_OTHER_PACKETS,
+ other_packets);
+ vlib_node_increment_counter (vm, sm->out2in_node_index,
+ SNAT_OUT2IN_ERROR_FRAGMENTS, fragments);
+
return frame->n_vectors;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (snat_out2in_node) = {
- .function = snat_out2in_node_fn,
.name = "nat44-out2in",
.vector_size = sizeof (u32),
.format_trace = format_snat_out2in_trace,
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (snat_out2in_node, snat_out2in_node_fn);
-
-static uword
-nat44_out2in_reass_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (nat44_out2in_reass_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
snat_out2in_next_t next_index;
- u32 pkts_processed = 0;
+ u32 pkts_processed = 0, cached_fragments = 0;
snat_main_t *sm = &snat_main;
f64 now = vlib_time_now (vm);
u32 thread_index = vm->thread_index;
{
next0 = SNAT_OUT2IN_NEXT_DROP;
b0->error = node->errors[SNAT_OUT2IN_ERROR_MAX_REASS];
- nat_log_notice ("maximum reassemblies exceeded");
+ nat_elog_notice ("maximum reassemblies exceeded");
goto trace0;
}
if (PREDICT_FALSE (reass0->sess_index == (u32) ~ 0))
{
if (nat_ip4_reass_add_fragment
- (reass0, bi0, &fragments_to_drop))
+ (thread_index, reass0, bi0, &fragments_to_drop))
{
b0->error = node->errors[SNAT_OUT2IN_ERROR_MAX_FRAG];
- nat_log_notice
+ nat_elog_notice
("maximum fragments per reassembly exceeded");
next0 = SNAT_OUT2IN_NEXT_DROP;
goto trace0;
if (PREDICT_FALSE (ip4_is_first_fragment (ip0)))
{
+ old_port0 = udp0->dst_port;
+ new_port0 = udp0->dst_port = s0->in2out.port;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->dst_port;
- tcp0->dst_port = s0->in2out.port;
- new_port0 = tcp0->dst_port;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
length /* changed member */ );
tcp0->checksum = ip_csum_fold (sum0);
}
- else
+ else if (udp0->checksum)
{
- old_port0 = udp0->dst_port;
- udp0->dst_port = s0->in2out.port;
- udp0->checksum = 0;
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
+ ip4_header_t,
+ dst_address /* changed member */ );
+ sum0 = ip_csum_update (sum0, old_port0, new_port0,
+ ip4_header_t /* cheat */ ,
+ length /* changed member */ );
+ udp0->checksum = ip_csum_fold (sum0);
}
}
/* Accounting */
nat44_session_update_counters (s0, now,
- vlib_buffer_length_in_chain (vm,
- b0));
+ vlib_buffer_length_in_chain (vm, b0),
+ thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s0, thread_index);
{
n_left_to_next++;
to_next--;
+ cached_fragments++;
}
else
{
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, nat44_out2in_reass_node.index,
- SNAT_OUT2IN_ERROR_OUT2IN_PACKETS,
+ vlib_node_increment_counter (vm, sm->out2in_reass_node_index,
+ SNAT_OUT2IN_ERROR_PROCESSED_FRAGMENTS,
pkts_processed);
+ vlib_node_increment_counter (vm, sm->out2in_reass_node_index,
+ SNAT_OUT2IN_ERROR_CACHED_FRAGMENTS,
+ cached_fragments);
nat_send_all_to_node (vm, fragments_to_drop, node,
&node->errors[SNAT_OUT2IN_ERROR_DROP_FRAGMENT],
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat44_out2in_reass_node) = {
- .function = nat44_out2in_reass_node_fn,
.name = "nat44-out2in-reass",
.vector_size = sizeof (u32),
.format_trace = format_nat44_reass_trace,
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (nat44_out2in_reass_node,
- nat44_out2in_reass_node_fn);
-
-static uword
-snat_out2in_fast_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
snat_out2in_next_t next_index;
if (PREDICT_FALSE (new_port0 != udp0->dst_port))
{
+ old_port0 = udp0->dst_port;
+ udp0->dst_port = new_port0;
+
if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
{
- old_port0 = tcp0->dst_port;
- tcp0->dst_port = new_port0;
-
sum0 = tcp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
dst_address /* changed member */ );
-
sum0 = ip_csum_update (sum0, old_port0, new_port0,
ip4_header_t /* cheat */ ,
length /* changed member */ );
tcp0->checksum = ip_csum_fold (sum0);
}
- else
+ else if (udp0->checksum)
{
- old_port0 = udp0->dst_port;
- udp0->dst_port = new_port0;
- udp0->checksum = 0;
+ sum0 = udp0->checksum;
+ sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
+ ip4_header_t,
+ dst_address /* changed member */ );
+ sum0 = ip_csum_update (sum0, old_port0, new_port0,
+ ip4_header_t /* cheat */ ,
+ length /* changed member */ );
+ udp0->checksum = ip_csum_fold (sum0);
}
}
else
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
dst_address /* changed member */ );
-
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 /* changed member */ );
+ udp0->checksum = ip_csum_fold (sum0);
+ }
}
trace00:
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, snat_out2in_fast_node.index,
+ vlib_node_increment_counter (vm, sm->out2in_fast_node_index,
SNAT_OUT2IN_ERROR_OUT2IN_PACKETS,
pkts_processed);
return frame->n_vectors;
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (snat_out2in_fast_node) = {
- .function = snat_out2in_fast_node_fn,
.name = "nat44-out2in-fast",
.vector_size = sizeof (u32),
.format_trace = format_snat_out2in_fast_trace,
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (snat_out2in_fast_node,
- snat_out2in_fast_node_fn);
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff