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authorOle Troan <ot@cisco.com>2019-11-04 13:43:17 +0100
committerOle Trøan <otroan@employees.org>2019-11-04 12:52:13 +0000
commita519f213f45e79383bac6baa332c4607e65604bb (patch)
tree76c7c4dab6da83fde43c87d0d677abaa04067edc /src
parent2e8b0618b12d317f2a4632e69a0663dcd8dde472 (diff)
nat: revert fix dual-loop tcp checksum botch
This reverts commit 9654a37fac7fe2b425576eb0237b8d24ae44e1b1. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I93ed5a48303421de43f5494c11db2be9a3c8ce57
Diffstat (limited to 'src')
-rwxr-xr-xsrc/plugins/nat/out2in.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/src/plugins/nat/out2in.c b/src/plugins/nat/out2in.c
index 9549a45c07e..83c099d1bd2 100755
--- a/src/plugins/nat/out2in.c
+++ b/src/plugins/nat/out2in.c
@@ -893,6 +893,9 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
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;
@@ -914,9 +917,6 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
{
if (PREDICT_FALSE (udp0->checksum))
{
- old_port0 = udp0->dst_port;
- new_port0 = udp0->dst_port = s0->in2out.port;
-
sum0 = udp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,
@@ -1070,12 +1070,11 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
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,
@@ -1091,9 +1090,6 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
{
if (PREDICT_FALSE (udp1->checksum))
{
- old_port1 = udp1->dst_port;
- new_port1 = udp1->dst_port = s1->in2out.port;
-
sum1 = udp1->checksum;
sum1 = ip_csum_update (sum1, old_addr1, new_addr1,
ip4_header_t,
@@ -1284,12 +1280,11 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
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,
@@ -1305,9 +1300,6 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
{
if (PREDICT_FALSE (udp0->checksum))
{
- old_port0 = udp0->dst_port;
- new_port0 = udp0->dst_port = s0->in2out.port;
-
sum0 = udp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
ip4_header_t,