ef5baf3486
There is a common macro __rte_packed for packing structs, which is now used where appropriate for consistency. Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 1982, 1986, 1990, 1993
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* The Regents of the University of California.
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* Copyright(c) 2010-2014 Intel Corporation.
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* All rights reserved.
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*/
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#ifndef _RTE_TCP_H_
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#define _RTE_TCP_H_
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/**
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* @file
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*
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* TCP-related defines
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*/
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#include <stdint.h>
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#include <rte_byteorder.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* TCP Header
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*/
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struct rte_tcp_hdr {
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rte_be16_t src_port; /**< TCP source port. */
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rte_be16_t dst_port; /**< TCP destination port. */
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rte_be32_t sent_seq; /**< TX data sequence number. */
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rte_be32_t recv_ack; /**< RX data acknowledgment sequence number. */
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uint8_t data_off; /**< Data offset. */
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uint8_t tcp_flags; /**< TCP flags */
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rte_be16_t rx_win; /**< RX flow control window. */
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rte_be16_t cksum; /**< TCP checksum. */
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rte_be16_t tcp_urp; /**< TCP urgent pointer, if any. */
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} __rte_packed;
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/**
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* TCP Flags
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*/
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#define RTE_TCP_CWR_FLAG 0x80 /**< Congestion Window Reduced */
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#define RTE_TCP_ECE_FLAG 0x40 /**< ECN-Echo */
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#define RTE_TCP_URG_FLAG 0x20 /**< Urgent Pointer field significant */
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#define RTE_TCP_ACK_FLAG 0x10 /**< Acknowledgment field significant */
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#define RTE_TCP_PSH_FLAG 0x08 /**< Push Function */
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#define RTE_TCP_RST_FLAG 0x04 /**< Reset the connection */
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#define RTE_TCP_SYN_FLAG 0x02 /**< Synchronize sequence numbers */
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#define RTE_TCP_FIN_FLAG 0x01 /**< No more data from sender */
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#ifdef __cplusplus
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}
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#endif
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#endif /* RTE_TCP_H_ */
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