+ l4_hdr_sz = vnet_buffer2 (b0)->gso_l4_hdr_sz;
+ if (b0->flags & VNET_BUFFER_F_IS_IP6)
+ hdr_len = sizeof (ethernet_header_t) + sizeof (ip6_header_t) +
+ l4_hdr_sz;
+ else
+ hdr_len = sizeof (ethernet_header_t) + sizeof (ip4_header_t) +
+ l4_hdr_sz;