99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
79 lines
2.2 KiB
C
79 lines
2.2 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_GTP_H_
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#define _RTE_GTP_H_
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/**
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* @file
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*
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* GTP-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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* Simplified GTP protocol header.
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* Contains 8-bit header info, 8-bit message type,
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* 16-bit payload length after mandatory header, 32-bit TEID.
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* No optional fields and next extension header.
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*/
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__extension__
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struct rte_gtp_hdr {
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union {
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uint8_t gtp_hdr_info; /**< GTP header info */
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struct {
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#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
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uint8_t pn:1; /**< N-PDU Number present bit */
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uint8_t s:1; /**< Sequence Number Present bit */
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uint8_t e:1; /**< Extension Present bit */
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uint8_t res1:1; /**< Reserved */
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uint8_t pt:1; /**< Protocol Type bit */
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uint8_t ver:3; /**< Version Number */
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#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
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uint8_t ver:3; /**< Version Number */
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uint8_t pt:1; /**< Protocol Type bit */
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uint8_t res1:1; /**< Reserved */
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uint8_t e:1; /**< Extension Present bit */
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uint8_t s:1; /**< Sequence Number Present bit */
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uint8_t pn:1; /**< N-PDU Number present bit */
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#endif
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};
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};
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uint8_t msg_type; /**< GTP message type */
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rte_be16_t plen; /**< Total payload length */
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rte_be32_t teid; /**< Tunnel endpoint ID */
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} __rte_packed;
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/* Optional word of GTP header, present if any of E, S, PN is set. */
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struct rte_gtp_hdr_ext_word {
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rte_be16_t sqn; /**< Sequence Number. */
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uint8_t npdu; /**< N-PDU number. */
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uint8_t next_ext; /**< Next Extension Header Type. */
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} __rte_packed;
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/** GTP header length */
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#define RTE_ETHER_GTP_HLEN \
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(sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr))
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/* GTP next protocal type */
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#define RTE_GTP_TYPE_IPV4 0x40 /**< GTP next protocal type IPv4 */
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#define RTE_GTP_TYPE_IPV6 0x60 /**< GTP next protocal type IPv6 */
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/* GTP destination port number */
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#define RTE_GTPC_UDP_PORT 2123 /**< GTP-C UDP destination port */
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#define RTE_GTPU_UDP_PORT 2152 /**< GTP-U UDP destination port */
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#ifdef __cplusplus
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}
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#endif
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#endif /* RTE_GTP_H_ */
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