| /* 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 |
