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#ifndef _GSMTAP_H
#define _GSMTAP_H
/* gsmtap header, pseudo-header in front of the actua GSM payload*/
#include <sys/types.h>
#define GSMTAP_VERSION 0x02
#define GSMTAP_TYPE_UM 0x01
#define GSMTAP_TYPE_ABIS 0x02
struct gsmtap_hdr {
u_int8_t version; /* version, set to 0x01 currently */
u_int8_t hdr_len; /* length in number of 32bit words */
u_int8_t type; /* see GSMTAP_TYPE_* */
u_int8_t timeslot; /* timeslot (0..7 on Um) */
u_int16_t arfcn; /* ARFCN (frequency) */
u_int8_t noise_db;
u_int8_t signal_db;
u_int32_t frame_number;
} __attribute__((packed));
#endif /* _GSMTAP_H */
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