| #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 */ |