diff options
Diffstat (limited to 'gsm-tvoid/src/lib/gsmtap.h')
| -rw-r--r-- | gsm-tvoid/src/lib/gsmtap.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gsm-tvoid/src/lib/gsmtap.h b/gsm-tvoid/src/lib/gsmtap.h new file mode 100644 index 0000000..6676d9a --- /dev/null +++ b/gsm-tvoid/src/lib/gsmtap.h @@ -0,0 +1,26 @@ +#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 */ |