diff options
Diffstat (limited to 'src/vnet/ip/ip4.h')
| -rw-r--r-- | src/vnet/ip/ip4.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h index 19198bcb66b..872b516cfa9 100644 --- a/src/vnet/ip/ip4.h +++ b/src/vnet/ip/ip4.h @@ -347,8 +347,18 @@ 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; - ih->checksum = 0; - b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4; + /* Offload ip4 header checksum generation */ + if (1) + { + 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); + } + else + ih->checksum = ip4_header_checksum (ih); + return ih; } #endif /* included_ip_ip4_h */ |