/* Represents the metadata fields of struct flow. */
struct flow_metadata {
ovs_be64 tun_id; /* Encapsulating tunnel ID. */
+ ovs_be32 tun_src; /* Tunnel outer IPv4 src addr */
+ ovs_be32 tun_dst; /* Tunnel outer IPv4 dst addr */
ovs_be64 metadata; /* OpenFlow 1.1+ metadata field. */
uint32_t regs[FLOW_N_REGS]; /* Registers. */
uint16_t in_port; /* OpenFlow port or zero. */