LXR dpdk/lib/net/rte

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 1982, 1986, 1990, 1993
   3 *      The Regents of the University of California.
   4 * Copyright(c) 2010-2014 Intel Corporation.
   5 * All rights reserved.
   6 */
   7
   8#ifndef _RTE_TCP_H_
   9#define _RTE_TCP_H_
  10
  11/**
  12 * @file
  13 *
  14 * TCP-related defines
  15 */
  16
  17#include <stdint.h>
  18
  19#include <rte_byteorder.h>
  20
  21#ifdef __cplusplus
  22extern "C" {
  23#endif
  24
  25/**
  26 * TCP Header
  27 */
  28struct rte_tcp_hdr {
  29        rte_be16_t src_port; /**< TCP source port. */
  30        rte_be16_t dst_port; /**< TCP destination port. */
  31        rte_be32_t sent_seq; /**< TX data sequence number. */
  32        rte_be32_t recv_ack; /**< RX data acknowledgment sequence number. */
  33        uint8_t  data_off;   /**< Data offset. */
  34        uint8_t  tcp_flags;  /**< TCP flags */
  35        rte_be16_t rx_win;   /**< RX flow control window. */
  36        rte_be16_t cksum;    /**< TCP checksum. */
  37        rte_be16_t tcp_urp;  /**< TCP urgent pointer, if any. */
  38} __rte_packed;
  39
  40/**
  41 * TCP Flags
  42 */
  43#define RTE_TCP_CWR_FLAG 0x80 /**< Congestion Window Reduced */
  44#define RTE_TCP_ECE_FLAG 0x40 /**< ECN-Echo */
  45#define RTE_TCP_URG_FLAG 0x20 /**< Urgent Pointer field significant */
  46#define RTE_TCP_ACK_FLAG 0x10 /**< Acknowledgment field significant */
  47#define RTE_TCP_PSH_FLAG 0x08 /**< Push Function */
  48#define RTE_TCP_RST_FLAG 0x04 /**< Reset the connection */
  49#define RTE_TCP_SYN_FLAG 0x02 /**< Synchronize sequence numbers */
  50#define RTE_TCP_FIN_FLAG 0x01 /**< No more data from sender */
  51
  52#ifdef __cplusplus
  53}
  54#endif
  55
  56#endif /* RTE_TCP_H_ */
  57