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-rw-r--r--src/plugins/snat/in2out.c70
-rw-r--r--src/plugins/snat/out2in.c38
2 files changed, 56 insertions, 52 deletions
diff --git a/src/plugins/snat/in2out.c b/src/plugins/snat/in2out.c
index b4961365309..8825158aee1 100644
--- a/src/plugins/snat/in2out.c
+++ b/src/plugins/snat/in2out.c
@@ -417,15 +417,17 @@ static u32 slow_path (snat_main_t *sm, vlib_buffer_t *b0,
}
static_always_inline
-snat_in2out_error_t icmp_get_key(icmp46_header_t *icmp0,
+snat_in2out_error_t icmp_get_key(ip4_header_t *ip0,
snat_session_key_t *p_key0)
{
+ icmp46_header_t *icmp0;
snat_session_key_t key0;
icmp_echo_header_t *echo0, *inner_echo0 = 0;
ip4_header_t *inner_ip0 = 0;
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))
@@ -433,6 +435,7 @@ snat_in2out_error_t icmp_get_key(icmp46_header_t *icmp0,
if (PREDICT_FALSE(icmp0->type != ICMP4_echo_request))
return SNAT_IN2OUT_ERROR_BAD_ICMP_TYPE;
key0.protocol = SNAT_PROTOCOL_ICMP;
+ key0.addr = ip0->src_address;
key0.port = echo0->identifier;
}
else
@@ -440,6 +443,7 @@ snat_in2out_error_t icmp_get_key(icmp46_header_t *icmp0,
inner_ip0 = (ip4_header_t *)(echo0+1);
l4_header = ip4_next_header (inner_ip0);
key0.protocol = ip_proto_to_snat_proto (inner_ip0->protocol);
+ key0.addr = inner_ip0->dst_address;
switch (key0.protocol)
{
case SNAT_PROTOCOL_ICMP:
@@ -496,14 +500,13 @@ u32 icmp_match_in2out_slow(snat_main_t *sm, vlib_node_runtime_t *node,
sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index (sw_if_index0);
- err = icmp_get_key (icmp0, &key0);
+ err = icmp_get_key (ip0, &key0);
if (err != -1)
{
b0->error = node->errors[err];
next0 = SNAT_IN2OUT_NEXT_DROP;
goto out;
}
- key0.addr = ip0->src_address;
key0.fib_index = rx_fib_index0;
kv0.key = key0.as_u64;
@@ -578,14 +581,13 @@ u32 icmp_match_in2out_fast(snat_main_t *sm, vlib_node_runtime_t *node,
sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index (sw_if_index0);
- err = icmp_get_key (icmp0, &key0);
+ err = icmp_get_key (ip0, &key0);
if (err != -1)
{
b0->error = node->errors[err];
next0 = SNAT_IN2OUT_NEXT_DROP;
goto out2;
}
- key0.addr = ip0->src_address;
key0.fib_index = rx_fib_index0;
if (snat_static_mapping_match(sm, key0, &sm0, 0))
@@ -694,7 +696,7 @@ static inline u32 icmp_in2out (snat_main_t *sm,
old_addr0 = inner_ip0->dst_address.as_u32;
inner_ip0->dst_address = sm0.addr;
- new_addr0 = inner_ip0->src_address.as_u32;
+ new_addr0 = inner_ip0->dst_address.as_u32;
sum0 = icmp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t,
@@ -955,8 +957,6 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
next0 = next1 = SNAT_IN2OUT_NEXT_LOOKUP;
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
-
if (PREDICT_FALSE(ip0->ttl == 1))
{
vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
@@ -967,6 +967,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
goto trace00;
}
+ proto0 = ip_proto_to_snat_proto (ip0->protocol);
+
/* Next configured feature, probably ip4-lookup */
if (is_slow_path)
{
@@ -1095,18 +1097,18 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
rx_fib_index1 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
sw_if_index1);
- proto1 = ip_proto_to_snat_proto (ip1->protocol);
-
- if (PREDICT_FALSE(ip0->ttl == 1))
+ if (PREDICT_FALSE(ip1->ttl == 1))
{
vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = SNAT_IN2OUT_NEXT_ICMP_ERROR;
+ next1 = SNAT_IN2OUT_NEXT_ICMP_ERROR;
goto trace01;
}
+ proto1 = ip_proto_to_snat_proto (ip1->protocol);
+
/* Next configured feature, probably ip4-lookup */
if (is_slow_path)
{
@@ -1270,8 +1272,6 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
sw_if_index0);
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
-
if (PREDICT_FALSE(ip0->ttl == 1))
{
vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
@@ -1282,6 +1282,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
+ proto0 = ip_proto_to_snat_proto (ip0->protocol);
+
/* Next configured feature, probably ip4-lookup */
if (is_slow_path)
{
@@ -1565,6 +1567,7 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
{
clib_warning("no match for internal host %U",
format_ip4_address, &ip0->src_address);
+ next0 = SNAT_IN2OUT_NEXT_DROP;
b0->error = node->errors[SNAT_IN2OUT_ERROR_NO_TRANSLATION];
goto trace0;
}
@@ -1587,12 +1590,12 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
ses0 = snat_det_ses_create(dm0, &ip0->src_address, tcp0->src, &key0);
break;
}
- if (PREDICT_FALSE(!ses0))
- {
- next0 = SNAT_IN2OUT_NEXT_DROP;
- b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
- goto trace0;
- }
+ if (PREDICT_FALSE(!ses0))
+ {
+ next0 = SNAT_IN2OUT_NEXT_DROP;
+ b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
+ goto trace0;
+ }
}
new_port0 = ses0->out.out_port;
@@ -1686,13 +1689,13 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
{
clib_warning("no match for internal host %U",
format_ip4_address, &ip0->src_address);
+ next1 = SNAT_IN2OUT_NEXT_DROP;
b1->error = node->errors[SNAT_IN2OUT_ERROR_NO_TRANSLATION];
goto trace1;
}
snat_det_forward(dm1, &ip1->src_address, &new_addr1, &lo_port1);
-
ses1 = snat_det_find_ses_by_in(dm1, &ip1->src_address, tcp1->src);
if (PREDICT_FALSE(!ses1))
{
@@ -1709,12 +1712,12 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
ses1 = snat_det_ses_create(dm1, &ip1->src_address, tcp1->src, &key1);
break;
}
- if (PREDICT_FALSE(!ses1))
- {
- next1 = SNAT_IN2OUT_NEXT_DROP;
- b1->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
- goto trace1;
- }
+ if (PREDICT_FALSE(!ses1))
+ {
+ next1 = SNAT_IN2OUT_NEXT_DROP;
+ b1->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
+ goto trace1;
+ }
}
new_port1 = ses1->out.out_port;
@@ -1842,6 +1845,7 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
{
clib_warning("no match for internal host %U",
format_ip4_address, &ip0->src_address);
+ next0 = SNAT_IN2OUT_NEXT_DROP;
b0->error = node->errors[SNAT_IN2OUT_ERROR_NO_TRANSLATION];
goto trace00;
}
@@ -1864,12 +1868,12 @@ snat_det_in2out_node_fn (vlib_main_t * vm,
ses0 = snat_det_ses_create(dm0, &ip0->src_address, tcp0->src, &key0);
break;
}
- if (PREDICT_FALSE(!ses0))
- {
- next0 = SNAT_IN2OUT_NEXT_DROP;
- b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
- goto trace00;
- }
+ if (PREDICT_FALSE(!ses0))
+ {
+ next0 = SNAT_IN2OUT_NEXT_DROP;
+ b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
+ goto trace00;
+ }
}
new_port0 = ses0->out.out_port;
diff --git a/src/plugins/snat/out2in.c b/src/plugins/snat/out2in.c
index 656e42dbd81..f0555a1b2d3 100644
--- a/src/plugins/snat/out2in.c
+++ b/src/plugins/snat/out2in.c
@@ -227,20 +227,23 @@ create_session_for_static_mapping (snat_main_t *sm,
}
static_always_inline
-snat_out2in_error_t icmp_get_key(icmp46_header_t *icmp0,
+snat_out2in_error_t icmp_get_key(ip4_header_t *ip0,
snat_session_key_t *p_key0)
{
+ icmp46_header_t *icmp0;
snat_session_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.protocol = SNAT_PROTOCOL_ICMP;
+ key0.addr = ip0->dst_address;
key0.port = echo0->identifier;
}
else
@@ -248,6 +251,7 @@ snat_out2in_error_t icmp_get_key(icmp46_header_t *icmp0,
inner_ip0 = (ip4_header_t *)(echo0+1);
l4_header = ip4_next_header (inner_ip0);
key0.protocol = ip_proto_to_snat_proto (inner_ip0->protocol);
+ key0.addr = inner_ip0->src_address;
switch (key0.protocol)
{
case SNAT_PROTOCOL_ICMP:
@@ -328,14 +332,13 @@ u32 icmp_match_out2in_slow(snat_main_t *sm, vlib_node_runtime_t *node,
sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index (sw_if_index0);
- err = icmp_get_key (icmp0, &key0);
+ err = icmp_get_key (ip0, &key0);
if (err != -1)
{
b0->error = node->errors[SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL];
next0 = SNAT_OUT2IN_NEXT_DROP;
goto out;
}
- key0.addr = ip0->dst_address;
key0.fib_index = rx_fib_index0;
kv0.key = key0.as_u64;
@@ -407,7 +410,6 @@ u32 icmp_match_out2in_fast(snat_main_t *sm, vlib_node_runtime_t *node,
u8 *p_dont_translate, void *d)
{
ip4_header_t *ip0;
- icmp46_header_t *icmp0;
u32 sw_if_index0;
u32 rx_fib_index0;
snat_session_key_t key0;
@@ -417,18 +419,16 @@ u32 icmp_match_out2in_fast(snat_main_t *sm, vlib_node_runtime_t *node,
int err;
ip0 = vlib_buffer_get_current (b0);
- icmp0 = (icmp46_header_t *) ip4_next_header (ip0);
sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index (sw_if_index0);
- err = icmp_get_key (icmp0, &key0);
+ err = icmp_get_key (ip0, &key0);
if (err != -1)
{
b0->error = node->errors[err];
next0 = SNAT_OUT2IN_NEXT_DROP;
goto out2;
}
- key0.addr = ip0->dst_address;
key0.fib_index = rx_fib_index0;
if (snat_static_mapping_match(sm, key0, &sm0, 1))
@@ -693,11 +693,6 @@ snat_out2in_node_fn (vlib_main_t * vm,
rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
sw_if_index0);
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
-
- if (PREDICT_FALSE (proto0 == ~0))
- goto trace0;
-
if (PREDICT_FALSE(ip0->ttl == 1))
{
vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
@@ -708,6 +703,11 @@ snat_out2in_node_fn (vlib_main_t * vm,
goto trace0;
}
+ proto0 = ip_proto_to_snat_proto (ip0->protocol);
+
+ if (PREDICT_FALSE (proto0 == ~0))
+ goto trace0;
+
if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
{
next0 = icmp_out2in_slow_path
@@ -828,21 +828,21 @@ snat_out2in_node_fn (vlib_main_t * vm,
rx_fib_index1 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
sw_if_index1);
- proto1 = ip_proto_to_snat_proto (ip1->protocol);
-
- if (PREDICT_FALSE (proto1 == ~0))
- goto trace1;
-
- if (PREDICT_FALSE(ip0->ttl == 1))
+ if (PREDICT_FALSE(ip1->ttl == 1))
{
vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded,
ICMP4_time_exceeded_ttl_exceeded_in_transit,
0);
- next0 = SNAT_OUT2IN_NEXT_ICMP_ERROR;
+ next1 = SNAT_OUT2IN_NEXT_ICMP_ERROR;
goto trace1;
}
+ proto1 = ip_proto_to_snat_proto (ip1->protocol);
+
+ if (PREDICT_FALSE (proto1 == ~0))
+ goto trace1;
+
if (PREDICT_FALSE (proto1 == SNAT_PROTOCOL_ICMP))
{
next1 = icmp_out2in_slow_path