diff options
author | Harald Welte <laforge@gnumonks.org> | 2010-02-20 20:34:29 +0100 |
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committer | Harald Welte <laforge@gnumonks.org> | 2010-02-20 20:34:29 +0100 |
commit | ec8b4501c7b0bfb286db7789635168d1b84f9105 (patch) | |
tree | 0db0073e589513d803d2b5be80580191e215dbe3 /include/osmocore/gsmtap.h |
intial checkin of the libosmocore project
Diffstat (limited to 'include/osmocore/gsmtap.h')
-rw-r--r-- | include/osmocore/gsmtap.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/osmocore/gsmtap.h b/include/osmocore/gsmtap.h new file mode 100644 index 00000000..81b9cc06 --- /dev/null +++ b/include/osmocore/gsmtap.h @@ -0,0 +1,62 @@ +#ifndef _GSMTAP_H +#define _GSMTAP_H + +/* gsmtap header, pseudo-header in front of the actua GSM payload*/ + +#include <stdint.h> + +#define GSMTAP_VERSION 0x01 + +#define GSMTAP_TYPE_UM 0x01 +#define GSMTAP_TYPE_ABIS 0x02 +#define GSMTAP_TYPE_UM_BURST 0x03 /* raw burst bits */ + +#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 + +#define GSMTAP_UDP_PORT 4729 + +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) */ + uint8_t noise_db; /* noise figure in dB */ + uint8_t signal_db; /* signal level in dB */ + + uint32_t frame_number; /* GSM Frame Number (FN) */ + + uint8_t burst_type; /* Type of burst, see above */ + uint8_t antenna_nr; /* Antenna Number */ + uint16_t res; /* reserved for future use (RFU) */ + +} __attribute__((packed)); + + +/* PCAP related definitions */ +#define TCPDUMP_MAGIC 0xa1b2c3d4 +#ifndef LINKTYPE_GSMTAP +#define LINKTYPE_GSMTAP 2342 +#endif +struct pcap_timeval { + int32_t tv_sec; + int32_t tv_usec; +}; + +struct pcap_sf_pkthdr { + struct pcap_timeval ts; /* time stamp */ + uint32_t caplen; /* lenght of portion present */ + uint32_t len; /* length of this packet */ +}; + +#endif /* _GSMTAP_H */ |