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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 1982, 1986, 1990, 1993
* The Regents of the University of California.
* Copyright(c) 2010-2014 Intel Corporation.
* All rights reserved.
*/
#ifndef _RTE_GTP_H_
#define _RTE_GTP_H_
/**
* @file
*
* GTP-related defines
*/
#include <stdint.h>
#include <rte_byteorder.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* Simplified GTP protocol header.
* Contains 8-bit header info, 8-bit message type,
* 16-bit payload length after mandatory header, 32-bit TEID.
* No optional fields and next extension header.
*/
struct rte_gtp_hdr {
uint8_t gtp_hdr_info; /**< GTP header info */
uint8_t msg_type; /**< GTP message type */
uint16_t plen; /**< Total payload length */
uint32_t teid; /**< Tunnel endpoint ID */
} __rte_packed;
/** GTP header length */
#define RTE_ETHER_GTP_HLEN \
(sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr))
/* GTP next protocal type */
#define RTE_GTP_TYPE_IPV4 0x40 /**< GTP next protocal type IPv4 */
#define RTE_GTP_TYPE_IPV6 0x60 /**< GTP next protocal type IPv6 */
/* GTP destination port number */
#define RTE_GTPC_UDP_PORT 2123 /**< GTP-C UDP destination port */
#define RTE_GTPU_UDP_PORT 2152 /**< GTP-U UDP destination port */
#ifdef __cplusplus
}
#endif
#endif /* RTE_GTP_H_ */
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