#include <nat/nat_syslog.h>
#include <nat/nat_ha.h>
-#define foreach_nat_out2in_ed_error \
-_(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")\
-_(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
-{
-#define _(sym,str) NAT_OUT2IN_ED_ERROR_##sym,
- foreach_nat_out2in_ed_error
-#undef _
- NAT_OUT2IN_ED_N_ERROR,
-} nat_out2in_ed_error_t;
-
static char *nat_out2in_ed_error_strings[] = {
#define _(sym,string) string,
foreach_nat_out2in_ed_error
#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,
return s;
}
-static_always_inline int
-icmp_get_ed_key (ip4_header_t * ip0, nat_ed_ses_key_t * p_key0)
-{
- icmp46_header_t *icmp0;
- nat_ed_ses_key_t key0;
- icmp_echo_header_t *echo0, *inner_echo0 = 0;
- ip4_header_t *inner_ip0;
- void *l4_header = 0;
- icmp46_header_t *inner_icmp0;
-
- icmp0 = (icmp46_header_t *) ip4_next_header (ip0);
- echo0 = (icmp_echo_header_t *) (icmp0 + 1);
-
- if (!icmp_is_error_message (icmp0))
- {
- key0.proto = IP_PROTOCOL_ICMP;
- key0.l_addr = ip0->dst_address;
- key0.r_addr = ip0->src_address;
- key0.l_port = echo0->identifier;
- key0.r_port = 0;
- }
- else
- {
- inner_ip0 = (ip4_header_t *) (echo0 + 1);
- l4_header = ip4_next_header (inner_ip0);
- key0.proto = inner_ip0->protocol;
- key0.l_addr = inner_ip0->src_address;
- key0.r_addr = inner_ip0->dst_address;
- switch (ip_proto_to_snat_proto (inner_ip0->protocol))
- {
- case SNAT_PROTOCOL_ICMP:
- inner_icmp0 = (icmp46_header_t *) l4_header;
- inner_echo0 = (icmp_echo_header_t *) (inner_icmp0 + 1);
- key0.l_port = inner_echo0->identifier;
- key0.r_port = 0;
- break;
- case SNAT_PROTOCOL_UDP:
- case SNAT_PROTOCOL_TCP:
- key0.l_port = ((tcp_udp_header_t *) l4_header)->src_port;
- key0.r_port = ((tcp_udp_header_t *) l4_header)->dst_port;
- break;
- default:
- return -1;
- }
- }
- *p_key0 = key0;
- return 0;
-}
-
static int
next_src_nat (snat_main_t * sm, ip4_header_t * ip, u8 proto, u16 src_port,
u16 dst_port, u32 thread_index, u32 rx_fib_index)
if (ip->protocol == IP_PROTOCOL_ICMP)
{
- if (icmp_get_ed_key (ip, &key))
+ if (get_icmp_o2i_ed_key (ip, &key))
return;
}
else if (ip->protocol == IP_PROTOCOL_UDP || ip->protocol == IP_PROTOCOL_TCP)
ip4_header_t ip_wkr = {
.src_address = ip->dst_address,
};
- u32 thread_index = sm->worker_in2out_cb (&ip_wkr, rx_fib_index);
+ u32 thread_index = sm->worker_in2out_cb (&ip_wkr, rx_fib_index, 0);
create_bypass_for_fwd (sm, ip, rx_fib_index, thread_index);
}
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
rx_fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
- if (icmp_get_ed_key (ip, &key))
+ 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;
}
}
src_address);
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;
- new_port0 = tcp0->dst_port = s0->in2out.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->src_address.as_u32,
+ s0->ext_host_nat_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, udp0->src_port,
+ s0->ext_host_nat_port, ip4_header_t,
+ length);
+ udp0->src_port = s0->ext_host_nat_port;
+ ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ udp_packets++;
+ }
else
{
- udp0->dst_port = s0->in2out.port;
- if (is_twice_nat_session (s0))
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->src_port = s0->ext_host_nat_port;
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
- udp0->checksum = 0;
udp_packets++;
}
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;
}
}
src_address);
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;
- new_port1 = tcp1->dst_port = s1->in2out.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->src_address.as_u32,
+ s1->ext_host_nat_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum1 = ip_csum_update (sum1, udp1->src_port,
+ s1->ext_host_nat_port, ip4_header_t,
+ length);
+ udp1->src_port = s1->ext_host_nat_port;
+ ip1->src_address.as_u32 = s1->ext_host_nat_addr.as_u32;
+ }
+ udp1->checksum = ip_csum_fold (sum1);
+ udp_packets++;
+ }
else
{
- udp1->dst_port = s1->in2out.port;
- if (is_twice_nat_session (s1))
+ if (PREDICT_FALSE (is_twice_nat_session (s1)))
{
udp1->src_port = s1->ext_host_nat_port;
ip1->src_address.as_u32 = s1->ext_host_nat_addr.as_u32;
}
- udp1->checksum = 0;
udp_packets++;
}
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;
}
}
src_address);
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;
- new_port0 = tcp0->dst_port = s0->in2out.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->src_address.as_u32,
+ s0->ext_host_nat_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, udp0->src_port,
+ s0->ext_host_nat_port, ip4_header_t,
+ length);
+ udp0->src_port = s0->ext_host_nat_port;
+ ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ udp_packets++;
+ }
else
{
- udp0->dst_port = s0->in2out.port;
- if (is_twice_nat_session (s0))
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->src_port = s0->ext_host_nat_port;
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
- udp0->checksum = 0;
udp_packets++;
}
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;
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,
}
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->src_address.as_u32,
+ s0->ext_host_nat_addr.as_u32,
+ ip4_header_t, dst_address);
+ sum0 = ip_csum_update (sum0, udp0->src_port,
+ s0->ext_host_nat_port,
+ ip4_header_t, length);
+ udp0->src_port = s0->ext_host_nat_port;
+ ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
+ }
+ udp0->checksum = ip_csum_fold (sum0);
+ }
else
{
- old_port0 = udp0->dst_port;
- udp0->dst_port = s0->in2out.port;
- if (is_twice_nat_session (s0))
+ if (PREDICT_FALSE (is_twice_nat_session (s0)))
{
udp0->src_port = s0->ext_host_nat_port;
ip0->src_address.as_u32 = s0->ext_host_nat_addr.as_u32;
}
- udp0->checksum = 0;
}
}
}
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 / blobdiff