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authorFlorin Coras <fcoras@cisco.com>2017-11-27 04:34:14 -0500
committerDave Barach <openvpp@barachs.net>2017-11-28 13:21:26 +0000
commitf988e696149f42828444c69762c036d9684b6bb0 (patch)
tree8e62fbd53a713e64be7c0441f0399aa023a949d8 /src/vnet/tcp/tcp_input.c
parentaf6f93a4eb4740ac13b1d65eb44da442976fa809 (diff)
tcp: fix retransmissions under buffer shortage
- add debugging scaffolding for simulating buffer shortage Change-Id: Ice519d74f9c4e4094c4586c548185135b7bb5f2d Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_input.c')
-rw-r--r--src/vnet/tcp/tcp_input.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 614b94a4b06..702a94f3a98 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -3001,6 +3001,9 @@ tcp46_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
goto done;
}
+ vnet_buffer (b0)->tcp.hdr_offset = (u8 *) tcp0
+ - (u8 *) vlib_buffer_get_current (b0);
+
/* Session exists */
if (PREDICT_TRUE (0 != tconn))
{
@@ -3014,8 +3017,6 @@ tcp46_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vnet_buffer (b0)->tcp.ack_number =
clib_net_to_host_u32 (tcp0->ack_number);
- vnet_buffer (b0)->tcp.hdr_offset = (u8 *) tcp0
- - (u8 *) vlib_buffer_get_current (b0);
vnet_buffer (b0)->tcp.data_offset = n_advance_bytes0;
vnet_buffer (b0)->tcp.data_len = n_data_bytes0;