beacon.c File Reference

#include "beacon.h"
#include "../../core/frame/tag.h"
#include "../../core/frame/tag_iterator.h"
#include "../../core/misc/byteswap.h"
#include "../../core/misc/epoch.h"
#include "common.h"
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

Go to the source code of this file.

Functions
size_t	libwifi_get_beacon_length (struct libwifi_beacon *beacon)
	The length of a beacon frame is the sum of the header length, the fixed parameters length, and the tagged parameters length. More...
int	libwifi_set_beacon_ssid (struct libwifi_beacon *beacon, const char *ssid)
	Simple helper to set the beacon SSID tag by removing it and then adding it back with the new value. More...
int	libwifi_set_beacon_channel (struct libwifi_beacon *beacon, uint8_t channel)
	Simple helper to set the beacon DS tag by removing it and then adding it back with the new value. More...
int	libwifi_create_beacon (struct libwifi_beacon *beacon, const unsigned char receiver[6], const unsigned char transmitter[6], const unsigned char address3[6], const char *ssid, uint8_t channel)
	The generated beacon frame is made with sane defaults defined in common.h. More...
size_t	libwifi_dump_beacon (struct libwifi_beacon *beacon, unsigned char *buf, size_t buf_len)
	Copy a libwifi_beacon into a regular unsigned char buffer. More...
void	libwifi_free_beacon (struct libwifi_beacon *beacon)
	Because the tagged parameters memory is managed inside of the library, the library must be the one to free it, too. More...

Function Documentation

libwifi_create_beacon()

int libwifi_create_beacon	(	struct libwifi_beacon *	beacon,
		const unsigned char	receiver[6],
		const unsigned char	transmitter[6],
		const unsigned char	address3[6],
		const char *	ssid,
		uint8_t	channel
	)

The generated beacon frame is made with sane defaults defined in common.h.

Generate a populated libwifi beacon.

Two tagged parameters are also added to the beacon: SSID and Channel.

Definition at line 81 of file beacon.c.

libwifi_dump_beacon()

size_t libwifi_dump_beacon	(	struct libwifi_beacon *	beacon,
		unsigned char *	buf,
		size_t	buf_len
	)

Copy a libwifi_beacon into a regular unsigned char buffer.

Dump a struct libwifi_beacon into a raw format for packet injection.

This is useful when injecting generated libwifi frames.

Definition at line 114 of file beacon.c.

libwifi_free_beacon()

void libwifi_free_beacon

(

struct libwifi_beacon *

beacon

)

Because the tagged parameters memory is managed inside of the library, the library must be the one to free it, too.

Free any memory claimed by a struct libwifi_beacon back to the system.

Definition at line 137 of file beacon.c.

libwifi_get_beacon_length()

size_t libwifi_get_beacon_length

(

struct libwifi_beacon *

beacon

)

The length of a beacon frame is the sum of the header length, the fixed parameters length, and the tagged parameters length.

Calculate the length of a given struct libwifi_beacon.

Definition at line 33 of file beacon.c.

libwifi_set_beacon_channel()

int libwifi_set_beacon_channel	(	struct libwifi_beacon *	beacon,
		uint8_t	channel
	)

Simple helper to set the beacon DS tag by removing it and then adding it back with the new value.

Set the channel of a struct libwifi_beacon.

Definition at line 60 of file beacon.c.

libwifi_set_beacon_ssid()

int libwifi_set_beacon_ssid	(	struct libwifi_beacon *	beacon,
		const char *	ssid
	)

Simple helper to set the beacon SSID tag by removing it and then adding it back with the new value.

Set the SSID of a struct libwifi_beacon.

Definition at line 42 of file beacon.c.