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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _GTP_H_
#define _GTP_H_
/* General GTP protocol related definitions. */
#define GTP0_PORT 3386
#define GTP1U_PORT 2152
#define GTP_TPDU 255
struct gtp0_header { /* According to GSM TS 09.60. */
__u8 flags;
__u8 type;
__be16 length;
__be16 seq;
__be16 flow;
__u8 number;
__u8 spare[3];
__be64 tid;
} __attribute__ ((packed));
struct gtp1_header { /* According to 3GPP TS 29.060. */
__u8 flags;
__u8 type;
__be16 length;
__be32 tid;
} __attribute__ ((packed));
#define GTP1_F_NPDU 0x01
#define GTP1_F_SEQ 0x02
#define GTP1_F_EXTHDR 0x04
#define GTP1_F_MASK 0x07
#endif