mirror of https://gerrit.osmocom.org/libosmocore
129 lines
4.4 KiB
C
129 lines
4.4 KiB
C
#ifndef _GSMTAP_H
|
|
#define _GSMTAP_H
|
|
|
|
/* gsmtap header, pseudo-header in front of the actua GSM payload */
|
|
|
|
/* GSMTAP is a generic header format for GSM protocol captures,
|
|
* it uses the IANA-assigned UDP port number 4729 and carries
|
|
* payload in various formats of GSM interfaces such as Um MAC
|
|
* blocks or Um bursts.
|
|
*
|
|
* Example programs generating GSMTAP data are airprobe
|
|
* (http://airprobe.org/) or OsmocomBB (http://bb.osmocom.org/)
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
|
|
/* The GSMTAP format definition is maintained in libosmocore,
|
|
* specifically the latest version can always be obtained from
|
|
* http://cgit.osmocom.org/cgit/libosmocore/tree/include/osmocom/core/gsmtap.h
|
|
*
|
|
* If you want to introduce new protocol/burst/channel types or extend
|
|
* GSMTAP in any way, please contact the GSMTAP maintainer at either the
|
|
* public openbsc@lists.osmocom.org mailing list, or privately at
|
|
* Harald Welte <laforge@gnumonks.org>.
|
|
*
|
|
* Your cooperation ensures that all projects will use the same GSMTAP
|
|
* definitions and remain compatible with each other.
|
|
*/
|
|
|
|
#define GSMTAP_VERSION 0x02
|
|
|
|
#define GSMTAP_TYPE_UM 0x01
|
|
#define GSMTAP_TYPE_ABIS 0x02
|
|
#define GSMTAP_TYPE_UM_BURST 0x03 /* raw burst bits */
|
|
#define GSMTAP_TYPE_SIM 0x04
|
|
#define GSMTAP_TYPE_TETRA_I1 0x05 /* tetra air interface */
|
|
#define GSMTAP_TYPE_TETRA_I1_BURST 0x06 /* tetra air interface */
|
|
#define GSMTAP_TYPE_WMX_BURST 0x07 /* WiMAX burst */
|
|
#define GSMTAP_TYPE_GB_LLC 0x08 /* GPRS Gb interface: LLC */
|
|
#define GSMTAP_TYPE_GB_SNDCP 0x09 /* GPRS Gb interface: SNDCP */
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
|
|
/* sub-types for TYPE_UM_BURST */
|
|
#define GSMTAP_BURST_UNKNOWN 0x00
|
|
#define GSMTAP_BURST_FCCH 0x01
|
|
#define GSMTAP_BURST_PARTIAL_SCH 0x02
|
|
#define GSMTAP_BURST_SCH 0x03
|
|
#define GSMTAP_BURST_CTS_SCH 0x04
|
|
#define GSMTAP_BURST_COMPACT_SCH 0x05
|
|
#define GSMTAP_BURST_NORMAL 0x06
|
|
#define GSMTAP_BURST_DUMMY 0x07
|
|
#define GSMTAP_BURST_ACCESS 0x08
|
|
#define GSMTAP_BURST_NONE 0x09
|
|
/* WiMAX bursts */
|
|
#define GSMTAP_BURST_CDMA_CODE 0x10 /* WiMAX CDMA Code Attribute burst */
|
|
#define GSMTAP_BURST_FCH 0x11 /* WiMAX FCH burst */
|
|
#define GSMTAP_BURST_FFB 0x12 /* WiMAX Fast Feedback burst */
|
|
#define GSMTAP_BURST_PDU 0x13 /* WiMAX PDU burst */
|
|
#define GSMTAP_BURST_HACK 0x14 /* WiMAX HARQ ACK burst */
|
|
#define GSMTAP_BURST_PHY_ATTRIBUTES 0x15 /* WiMAX PHY Attributes burst */
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
|
|
/* sub-types for TYPE_UM */
|
|
#define GSMTAP_CHANNEL_UNKNOWN 0x00
|
|
#define GSMTAP_CHANNEL_BCCH 0x01
|
|
#define GSMTAP_CHANNEL_CCCH 0x02
|
|
#define GSMTAP_CHANNEL_RACH 0x03
|
|
#define GSMTAP_CHANNEL_AGCH 0x04
|
|
#define GSMTAP_CHANNEL_PCH 0x05
|
|
#define GSMTAP_CHANNEL_SDCCH 0x06
|
|
#define GSMTAP_CHANNEL_SDCCH4 0x07
|
|
#define GSMTAP_CHANNEL_SDCCH8 0x08
|
|
#define GSMTAP_CHANNEL_TCH_F 0x09
|
|
#define GSMTAP_CHANNEL_TCH_H 0x0a
|
|
#define GSMTAP_CHANNEL_CBCH51 0x0b
|
|
#define GSMTAP_CHANNEL_CBCH52 0x0c
|
|
#define GSMTAP_CHANNEL_PDCH 0x0d
|
|
#define GSMTAP_CHANNEL_PTCCH 0x0e
|
|
#define GSMTAP_CHANNEL_PACCH 0x0f
|
|
#define GSMTAP_CHANNEL_ACCH 0x80
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
|
|
/* sub-types for TYPE_TETRA_AIR */
|
|
#define GSMTAP_TETRA_BSCH 0x01
|
|
#define GSMTAP_TETRA_AACH 0x02
|
|
#define GSMTAP_TETRA_SCH_HU 0x03
|
|
#define GSMTAP_TETRA_SCH_HD 0x04
|
|
#define GSMTAP_TETRA_SCH_F 0x05
|
|
#define GSMTAP_TETRA_BNCH 0x06
|
|
#define GSMTAP_TETRA_STCH 0x07
|
|
#define GSMTAP_TETRA_TCH_F 0x08
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
|
|
/* flags for the ARFCN */
|
|
#define GSMTAP_ARFCN_F_PCS 0x8000
|
|
#define GSMTAP_ARFCN_F_UPLINK 0x4000
|
|
#define GSMTAP_ARFCN_MASK 0x3fff
|
|
|
|
/* IANA-assigned well-known UDP port for GSMTAP messages */
|
|
#define GSMTAP_UDP_PORT 4729
|
|
|
|
/* ====== DO NOT MAKE UNAPPROVED MODIFICATIONS HERE ===== */
|
|
struct gsmtap_hdr {
|
|
uint8_t version; /* version, set to 0x01 currently */
|
|
uint8_t hdr_len; /* length in number of 32bit words */
|
|
uint8_t type; /* see GSMTAP_TYPE_* */
|
|
uint8_t timeslot; /* timeslot (0..7 on Um) */
|
|
|
|
uint16_t arfcn; /* ARFCN (frequency) */
|
|
int8_t signal_dbm; /* signal level in dBm */
|
|
int8_t snr_db; /* signal/noise ratio in dB */
|
|
|
|
uint32_t frame_number; /* GSM Frame Number (FN) */
|
|
|
|
uint8_t sub_type; /* Type of burst/channel, see above */
|
|
uint8_t antenna_nr; /* Antenna Number */
|
|
uint8_t sub_slot; /* sub-slot within timeslot */
|
|
uint8_t res; /* reserved for future use (RFU) */
|
|
|
|
} __attribute__((packed));
|
|
|
|
#endif /* _GSMTAP_H */
|