Bastian Bloessl
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2013 Bastian Bloessl <bloessl@ccs-labs.org>
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef INCLUDED_IEEE802_11_OFDM_UTILS_H
|
|
#define INCLUDED_IEEE802_11_OFDM_UTILS_H
|
|
|
|
#include <ieee802-11/api.h>
|
|
|
|
/**
|
|
* Define structure for the MAC header of a data frame.
|
|
* Values as stored as MSB, but standard mandates LSB
|
|
* representation. Bit utils functions can help changing
|
|
* endiannes
|
|
*/
|
|
struct MAC_DATAFRAME_HEADER {
|
|
char frame_control[2]; //protocol version, type, subtype, to_ds, from_ds, ...
|
|
char duration[2]; //duration field
|
|
char address1[6]; //address 1 indicating BSSID: 6 bytes MAC address
|
|
char address2[6]; //address 2 indicating receiver
|
|
char address3[6]; //address 3 indicating sender
|
|
char sequence[2]; //sequence number plus fragment number
|
|
};
|
|
|
|
enum ENCODING {
|
|
BPSK_1_2 = 0,
|
|
BPSK_3_4 = 1,
|
|
QPSK_1_2 = 2,
|
|
QPSK_3_4 = 3,
|
|
QAM16_1_2 = 4,
|
|
QAM16_3_4 = 5,
|
|
QAM64_2_3 = 6,
|
|
QAM64_3_4 = 7,
|
|
};
|
|
|
|
/**
|
|
* OFDM parameters
|
|
*/
|
|
class ofdm_param {
|
|
public:
|
|
ofdm_param(ENCODING e);
|
|
|
|
// data rate
|
|
ENCODING encoding;
|
|
// rate field of the SIGNAL header
|
|
char rate_field;
|
|
// number of coded bits per sub carrier
|
|
int n_bpsc;
|
|
// number of coded bits per OFDM symbol
|
|
int n_cbps;
|
|
// number of data bits per OFDM symbol
|
|
int n_dbps;
|
|
|
|
void print_out();
|
|
};
|
|
|
|
/**
|
|
* packet specific parameters
|
|
*/
|
|
class tx_param {
|
|
public:
|
|
tx_param(ofdm_param &ofdm, int psdu_length);
|
|
// PSDU size in bytes
|
|
int psdu_size;
|
|
// number of OFDM symbols (17-11)
|
|
int n_sym;
|
|
// number of data bits in the DATA field, including service and padding (17-12)
|
|
int n_data;
|
|
// number of padding bits in the DATA field (17-13)
|
|
int n_pad;
|
|
int n_encoded_bits;
|
|
|
|
void print_out();
|
|
};
|
|
|
|
#endif /* INCLUDED_IEEE802_11_OFDM_UTILS_H */
|