af_packet: add the missing header-len for packets with checksum offload

[vpp.git] / src / plugins / af_packet / device.c

diff --git a/src/plugins/af_packet/device.c b/src/plugins/af_packet/device.c
index b38d58c..27f5559 100644 (file)
--- a/src/plugins/af_packet/device.c
+++ b/src/plugins/af_packet/device.c
@@ -343,6 +343,7 @@ fill_cksum_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
            (tcp_header_t *) (b0->data + vnet_buffer (b0)->l4_hdr_offset);
          tcp->checksum = ip4_pseudo_header_cksum (ip4);
          vnet_hdr->csum_offset = STRUCT_OFFSET_OF (tcp_header_t, checksum);
+         vnet_hdr->hdr_len = l4_hdr_offset + tcp_header_bytes (tcp);
        }
       else if (oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)
        {
@@ -350,6 +351,7 @@ fill_cksum_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
            (udp_header_t *) (b0->data + vnet_buffer (b0)->l4_hdr_offset);
          udp->checksum = ip4_pseudo_header_cksum (ip4);
          vnet_hdr->csum_offset = STRUCT_OFFSET_OF (udp_header_t, checksum);
+         vnet_hdr->hdr_len = l4_hdr_offset + sizeof (udp_header_t);
        }
     }
   else if (b0->flags & VNET_BUFFER_F_IS_IP6)
@@ -364,6 +366,7 @@ fill_cksum_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
            (tcp_header_t *) (b0->data + vnet_buffer (b0)->l4_hdr_offset);
          tcp->checksum = ip6_pseudo_header_cksum (ip6);
          vnet_hdr->csum_offset = STRUCT_OFFSET_OF (tcp_header_t, checksum);
+         vnet_hdr->hdr_len = l4_hdr_offset + tcp_header_bytes (tcp);
        }
       else if (oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)
        {
@@ -371,6 +374,7 @@ fill_cksum_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
            (udp_header_t *) (b0->data + vnet_buffer (b0)->l4_hdr_offset);
          udp->checksum = ip6_pseudo_header_cksum (ip6);
          vnet_hdr->csum_offset = STRUCT_OFFSET_OF (udp_header_t, checksum);
+         vnet_hdr->hdr_len = l4_hdr_offset + sizeof (udp_header_t);
        }
     }
 }