Radio

Files
file	radio.h

Enumerations
enum	moep80211_chan_width {   MOEP80211_CHAN_WIDTH_20_NOHT, MOEP80211_CHAN_WIDTH_20, MOEP80211_CHAN_WIDTH_40, MOEP80211_CHAN_WIDTH_80,   MOEP80211_CHAN_WIDTH_80P80, MOEP80211_CHAN_WIDTH_160 }
	channel width definition More...

Functions
moep_dev_t	moep_dev_radio_open (const char *devname, u32 freq, enum moep80211_chan_width chan_width, u32 freq1, u32 freq2, int mtu, struct moep_frame_ops *l2_ops)
	open a radio device More...
moep_frame_t	moep_frame_radio_create (struct moep_frame_ops *l2_ops)
	create a radio frame More...
struct moep80211_radiotap *	moep_frame_radiotap (moep_frame_t frame)
	radiotap header More...

Detailed Description

Enumeration Type Documentation

enum moep80211_chan_width

channel width definition

Enumerator
MOEP80211_CHAN_WIDTH_20_NOHT	20 MHz, non-HT channel
MOEP80211_CHAN_WIDTH_20	20 MHz, HT channel
MOEP80211_CHAN_WIDTH_40	40 MHz channel This channel type requires the parameter freq1 to be specified.
MOEP80211_CHAN_WIDTH_80	80 MHz channel This channel type requires the parameter freq1 to be specified.
MOEP80211_CHAN_WIDTH_80P80	80+80 MHz channel This channel type requires the parameters freq1 and freq2 to be specified.
MOEP80211_CHAN_WIDTH_160	160 MHz channel This channel type requires the parameter freq1 to be specified.

Function Documentation

moep_dev_t moep_dev_radio_open	(	const char *	devname,
		u32	freq,
		enum moep80211_chan_width	chan_width,
		u32	freq1,
		u32	freq2,
		int	mtu,
		struct moep_frame_ops *	l2_ops
	)

open a radio device

The function moep_dev_radio_open() is used to open a radio device. This function is only useful, if you want to create a new layer 2 module based on the radio module.

Parameters

devname	the device name; This can either be the physical device name e.g. 'phy0' or an interface name e.g. 'wlan1'.
freq	the channel frequency in MHz
chan_width	the channel width
freq1	the first center frequency in MHz; This value may be ignored depending on the channel width.
freq2	the second center frequency in MHz; This value may be ignored depending on the channel width.
mtu	the MTU of the device; This includes all headers.
l2_ops	frame header operations for layer 2

Returns

This function returns a moep device.

Return values

NULL	on error, errno is set appropriately.

Errors

These are some standard errors generated and returned by this function. Additional errors may be generated and returned from the underlying system calls.

EINVAL	Invalid argument
EMFILE	Too many open files; Some filedescriptors are too big for select.
ENOMEM	Not enough memory available

moep_frame_t moep_frame_radio_create

(

struct moep_frame_ops *

l2_ops

)

create a radio frame

The function moep_frame_radio_create() is used to create a radio frame with the given frame header operations for layer 2.

Parameters

l2_ops

frame header operations for layer 2

Returns

This function returns a moep frame.

Return values

NULL	on error, errno is set appropriately.

Errors

The error values are the same as for moep_frame_create().

struct moep80211_radiotap* moep_frame_radiotap

(

moep_frame_t

frame

)

radiotap header

The function moep_frame_radiotap() is used to get the radiotap header of a frame.

Parameters

frame

the frame

Returns

This function returns the radiotap header.

Return values

NULL	on error, errno is set appropriately.

Errors

EACCES	The frame is not a radio frame.
ENOMEM	Not enough memory available.