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authorFlorin Coras <fcoras@cisco.com>2019-11-26 18:43:25 -0800
committerAndrew Yourtchenko <ayourtch@gmail.com>2020-08-12 07:43:14 +0000
commit2b9bf4f4a723d2bcedcbea096c30fe4f4fa7f2a1 (patch)
tree6e530dec1bdce214c3c754b5431b3d6279356e0f
parentc7e400f8af801639ba9b855da78eb0d8fca9032f (diff)
ip: init l3_hdr_offset when pushing an ip4 header
Type: fix Change-Id: I87503b9a981724b1f3ff1c45a4a5f7a43024ca76 Signed-off-by: Florin Coras <fcoras@cisco.com> (cherry picked from commit 757de9873bbaf2d21d107da42c6bbeb2804c7fcc)
-rw-r--r--src/vnet/ip/ip4.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index 2a3743febb3..339b84b1b62 100644
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -401,16 +401,14 @@ vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b,
ih->src_address.as_u32 = src->as_u32;
ih->dst_address.as_u32 = dst->as_u32;
+ vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
+ b->flags |= VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+
/* Offload ip4 header checksum generation */
if (csum_offload)
{
ih->checksum = 0;
- b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4;
- vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
- vnet_buffer (b)->l4_hdr_offset = vnet_buffer (b)->l3_hdr_offset +
- sizeof (*ih);
- b->flags |=
- VNET_BUFFER_F_L3_HDR_OFFSET_VALID | VNET_BUFFER_F_L4_HDR_OFFSET_VALID;
+ b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
}
else
ih->checksum = ip4_header_checksum (ih);