diff options
| author | songyanchao <[email protected]> | 2024-04-14 13:24:41 +0800 |
|---|---|---|
| committer | songyanchao <[email protected]> | 2024-04-17 02:23:06 +0000 |
| commit | 5a83f0d644a8564791c531d82a79e1aa4899f882 (patch) | |
| tree | 5093a72b84233bd58baad5480edcdc61feab2f83 /service/src | |
| parent | 0077eda5753ba103b891a3e91b3816e6d772c966 (diff) | |
🐞 fix: Constructed the source port for VXLAN encapsulation.
Constructed the source port for VXLAN encapsulation.
Diffstat (limited to 'service/src')
| -rw-r--r-- | service/src/node_etherfabric.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/service/src/node_etherfabric.c b/service/src/node_etherfabric.c index 0a959f4..60c2276 100644 --- a/service/src/node_etherfabric.c +++ b/service/src/node_etherfabric.c @@ -657,6 +657,15 @@ static struct rte_node_register ef_ingress_node_base = { RTE_NODE_REGISTER(ef_ingress_node_base); +/* Generate the source port for VXLAN encapsulation, rfc7348 */ +static inline uint16_t generate_vxlan_src_port(struct rte_mbuf * mbuf) +{ + uint16_t min = 49152; + uint16_t range = 65535 - 49152 + 1; + + return min + (uint16_t)(mbuf->hash.usr % range); +} + /* Fill Ether IPv4 Udp Vxlan hdr for the constructed packet */ static inline int vxlan_encap_constructed_pkt(struct rte_mbuf * mbuf, struct mrb_metadata * mrb_meta, struct ef_peer * ef_peer_item, struct mr_dev_desc * dev_desc) @@ -682,7 +691,7 @@ static inline int vxlan_encap_constructed_pkt(struct rte_mbuf * mbuf, struct mrb /* TODO: the source port need to be fill with the hash of inner 2-tuple or 4-tuple, * ignore the udp checksum */ - p_udp_hdr->src_port = htons(4789); + p_udp_hdr->src_port = htons(generate_vxlan_src_port(mbuf)); p_udp_hdr->dst_port = htons(4789); p_udp_hdr->dgram_len = htons(rte_pktmbuf_pkt_len(mbuf)); p_udp_hdr->dgram_cksum = 0; |