#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 |