diff options
Diffstat (limited to 'VNFs/DPPD-PROX/prox_cksum.c')
| -rw-r--r-- | VNFs/DPPD-PROX/prox_cksum.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/prox_cksum.c b/VNFs/DPPD-PROX/prox_cksum.c index add52f2b..58e05a6b 100644 --- a/VNFs/DPPD-PROX/prox_cksum.c +++ b/VNFs/DPPD-PROX/prox_cksum.c @@ -112,6 +112,10 @@ inline void prox_ip_udp_cksum(struct rte_mbuf *mbuf, struct ipv4_hdr *pip, uint1 } else #endif prox_tcp_cksum_sw(tcp, l4_len, pip->src_addr, pip->dst_addr); + } else if (pip->next_proto_id == IPPROTO_IGMP) { + struct igmpv2_hdr *igmp = (struct igmpv2_hdr *)(((uint8_t*)pip) + l3_len); + // Not sure NIC can offload IGMP checkum => do it in software + prox_igmp_cksum_sw(igmp, l4_len); } } @@ -153,3 +157,10 @@ inline void prox_tcp_cksum_sw(struct tcp_hdr *tcp, uint16_t len, uint32_t src_ip uint16_t csum = checksum_byte_seq((uint16_t *)tcp, len); tcp->cksum = csum; } + +inline void prox_igmp_cksum_sw(struct igmpv2_hdr *igmp, uint16_t len) +{ + igmp->checksum = 0; + uint16_t csum = checksum_byte_seq((uint16_t *)igmp, len); + igmp->checksum = csum; +} |