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openairinterface5g/openair2/UTIL/OPT/mac_pcap.h
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>
#define MAC_LTE_DLT 147
/********************************************************/
/* Definitions and descriptions come from:
http://wiki.wireshark.org/Development/LibpcapFileFormat */
/* This structure gets written to the start of the file */
typedef struct pcap_hdr_s {
unsigned int magic_number; /* magic number */
unsigned short version_major; /* major version number */
unsigned short version_minor; /* minor version number */
unsigned int thiszone; /* GMT to local correction */
unsigned int sigfigs; /* accuracy of timestamps */
unsigned int snaplen; /* max length of captured packets, in octets */
unsigned int network; /* data link type */
} pcap_hdr_t;
/* This structure precedes each packet */
typedef struct pcaprec_hdr_s {
unsigned int ts_sec; /* timestamp seconds */
unsigned int ts_usec; /* timestamp microseconds */
unsigned int incl_len; /* number of octets of packet saved in file */
unsigned int orig_len; /* actual length of packet */
} pcaprec_hdr_t;
/* Context information for every MAC PDU that will be logged */
typedef struct MAC_Context_Info_t {
unsigned short radioType;
unsigned char direction;
unsigned char rntiType;
unsigned short rnti;
unsigned short ueid;
unsigned char isRetx;
unsigned char crcStatusOK;
unsigned short sysFrameNumber;
unsigned short subFrameNumber;
unsigned int subframesSinceCaptureStart;
} MAC_Context_Info_t;
pcap_hdr_t file_header = {
0xa1b2c3d4, /* magic number */
2, 4, /* version number is 2.4 */
0, /* timezone */
0, /* sigfigs - apparently all tools do this */
65535, /* snaplen - this should be long enough */
MAC_LTE_DLT /* Data Link Type (DLT). Set as unused value 147 for now */
};