From: Mohsin Kazmi <sykazmi@cisco.com>
Date: Wed, 18 Jan 2023 19:34:00 +0000 (+0000)
Subject: af_packet: add the missing header-len for packets with checksum offload
X-Git-Tag: v23.10-rc0~299
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=8a0fd0669047c90d410d2ed5cb508bfe778b932a;p=vpp.git

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

Type: fix

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ifb790c25b38b2b1865cda7d95891bddd4195c601
---

diff --git a/src/plugins/af_packet/device.c b/src/plugins/af_packet/device.c
index b38d58cced1..27f5559c8cd 100644
--- 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);
 	}
     }
 }