rte_tcp_hdr rte_ipv4_hdr

/**
* IPv4 Header
*/
struct rte_ipv4_hdr {
uint8_t version_ihl; /**< version and header length */
uint8_t type_of_service; /**< type of service */
rte_be16_t total_length; /**< length of packet */
rte_be16_t packet_id; /**< packet ID */
rte_be16_t fragment_offset; /**< fragmentation offset */
uint8_t time_to_live; /**< time to live */
uint8_t next_proto_id; /**< protocol ID */
rte_be16_t hdr_checksum; /**< header checksum */
rte_be32_t src_addr; /**< source address */
rte_be32_t dst_addr; /**< destination address */
} __attribute__((__packed__));

/**
 * TCP Header
 */
struct rte_tcp_hdr {
        rte_be16_t src_port; /**< TCP source port. */
        rte_be16_t dst_port; /**< TCP destination port. */
        rte_be32_t sent_seq; /**< TX data sequence number. */
        rte_be32_t recv_ack; /**< RX data acknowledgment sequence number. */
        uint8_t  data_off;   /**< Data offset. */
        uint8_t  tcp_flags;  /**< TCP flags */
        rte_be16_t rx_win;   /**< RX flow control window. */
        rte_be16_t cksum;    /**< TCP checksum. */
        rte_be16_t tcp_urp;  /**< TCP urgent pointer, if any. */
} __attribute__((__packed__));