diff options
| author |   Damjan Marion <damarion@cisco.com> | 2018-01-15 17:57:00 +0100 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2018-01-17 14:38:24 +0000 |
| commit | faf9a5a01ea8b20f1282db22c5b6f70880187f3f (patch) | |
| tree | 80a25e47fb2dd4cce6d06aac587a406b98e80283 | |
| parent | d3046598b0954f20031852ad55bcf2d4900c01bf (diff) | |
Fix checksum offload sssue caused by overwriten lX_hdr_offset
This happens when 2 packets belonging to 2 different interfaces hit
dual loop in the ethernet-input. Packets go to slow path which doesn't
set l2 hdr offset correctly for l3 packets.
Change-Id: I61d87c079db0b2e21f8af6f6b600bff14030535d
Signed-off-by: Damjan Marion <damarion@cisco.com>
| -rwxr-xr-x | src/vnet/ethernet/node.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c index 3760877dc79..a2e7524a5b2 100755 --- a/src/vnet/ethernet/node.c +++ b/src/vnet/ethernet/node.c @@ -229,6 +229,8 @@ determine_next_node (ethernet_main_t * em, u32 is_l20, u32 type0, vlib_buffer_t * b0, u8 * error0, u8 * next0) { + u32 eth_start = vnet_buffer (b0)->l2_hdr_offset; + vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start; if (PREDICT_FALSE (*error0 != ETHERNET_ERROR_NONE)) { // some error occurred @@ -238,8 +240,6 @@ determine_next_node (ethernet_main_t * em, { *next0 = em->l2_next; // record the L2 len and reset the buffer so the L2 header is preserved - u32 eth_start = vnet_buffer (b0)->l2_hdr_offset; - vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start; ASSERT (vnet_buffer (b0)->l2.l2_len == ethernet_buffer_header_size (b0)); vlib_buffer_advance (b0, -ethernet_buffer_header_size (b0)); |