diff options
Diffstat (limited to 'udp_vu.c')
| -rw-r--r-- | udp_vu.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -103,6 +103,7 @@ static void udp_vu_prepare(const struct ctx *c, struct iov_tail *data, bool ipv4 = inany_v4(&toside->eaddr) && inany_v4(&toside->oaddr); struct ethhdr eh; struct udphdr uh; + bool no_csum; /* ethernet header */ memcpy(eh.h_dest, c->guest_mac, sizeof(eh.h_dest)); @@ -114,17 +115,19 @@ static void udp_vu_prepare(const struct ctx *c, struct iov_tail *data, eh.h_proto = htons(ETH_P_IPV6); IOV_PUSH_HEADER(data, eh); + no_csum = vu_has_feature(c->vdev, VIRTIO_NET_F_GUEST_CSUM) && !*c->pcap; + /* initialize header */ if (ipv4) { struct iphdr iph = (struct iphdr)L2_BUF_IP4_INIT(IPPROTO_UDP); - udp_update_hdr4(&iph, &uh, payload, toside, dlen, !*c->pcap); + udp_update_hdr4(&iph, &uh, payload, toside, dlen, no_csum); IOV_PUSH_HEADER(data, iph); } else { struct ipv6hdr ip6h = (struct ipv6hdr)L2_BUF_IP6_INIT(IPPROTO_UDP); - udp_update_hdr6(&ip6h, &uh, payload, toside, dlen, !*c->pcap); + udp_update_hdr6(&ip6h, &uh, payload, toside, dlen, no_csum); IOV_PUSH_HEADER(data, ip6h); } |