Functions
int	offchannel_send_action (struct wpa_supplicant wpa_s, unsigned int freq, const u8 dst, const u8 src, const u8 bssid, const u8 buf, size_t len, unsigned int wait_time, void(tx_cb)(struct wpa_supplicant wpa_s, unsigned int freq, const u8 dst, const u8 src, const u8 bssid, const u8 *data, size_t data_len, enum offchannel_send_action_resultresult), int no_cck)
	Request off-channel Action frame TX. More...

void	offchannel_send_action_done (struct wpa_supplicant *wpa_s)
	Notify completion of Action frame sequence. More...

void	offchannel_remain_on_channel_cb (struct wpa_supplicant *wpa_s, unsigned int freq, unsigned int duration)
	Remain-on-channel callback function. More...

void	offchannel_cancel_remain_on_channel_cb (struct wpa_supplicant *wpa_s, unsigned int freq)
	Remain-on-channel stopped callback. More...

void	offchannel_deinit (struct wpa_supplicant *wpa_s)
	Deinit off-channel operations. More...

void	offchannel_send_action_tx_status (struct wpa_supplicant wpa_s, const u8 dst, const u8 *data, size_t data_len, enum offchannel_send_action_result result)
	TX status callback. More...

const void *	offchannel_pending_action_tx (struct wpa_supplicant *wpa_s)
	Check whether there is a pending Action TX. More...

void	offchannel_clear_pending_action_tx (struct wpa_supplicant *wpa_s)
	Clear pending Action frame TX. More...

Detailed Description

Function Documentation

void offchannel_cancel_remain_on_channel_cb	(	struct wpa_supplicant *	wpa_s,
		unsigned int	freq
	)

Remain-on-channel stopped callback.

Parameters

wpa_s	Pointer to wpa_supplicant data
freq	Frequency (in MHz) of the selected channel

This function is called whenever the driver notifies termination of a remain-on-channel operation.

void offchannel_clear_pending_action_tx ( struct wpa_supplicant * wpa_s )

Clear pending Action frame TX.

Parameters

wpa_s Pointer to wpa_supplicant data

void offchannel_deinit ( struct wpa_supplicant * wpa_s )

Deinit off-channel operations.

Parameters

wpa_s Pointer to wpa_supplicant data

This function is used to free up any allocated resources for off-channel operations.

const void* offchannel_pending_action_tx ( struct wpa_supplicant * wpa_s )

Check whether there is a pending Action TX.

Parameters

wpa_s Pointer to wpa_supplicant data

Returns: Pointer to pending frame or NULL if no pending operation

This function can be used to check whether there is a pending Action frame TX operation. The returned pointer should be used only for checking whether it is NULL (no pending frame) or to print the pointer value in debug information (i.e., the pointer should not be dereferenced).

void offchannel_remain_on_channel_cb	(	struct wpa_supplicant *	wpa_s,
		unsigned int	freq,
		unsigned int	duration
	)

Remain-on-channel callback function.

Parameters

wpa_s	Pointer to wpa_supplicant data
freq	Frequency (in MHz) of the selected channel
duration	Duration of the remain-on-channel operation in milliseconds

This function is called whenever the driver notifies beginning of a remain-on-channel operation.

int offchannel_send_action	(	struct wpa_supplicant *	wpa_s,
		unsigned int	freq,
		const u8 *	dst,
		const u8 *	src,
		const u8 *	bssid,
		const u8 *	buf,
		size_t	len,
		unsigned int	wait_time,
		void()(struct wpa_supplicant wpa_s, unsigned int freq, const u8 dst, const u8 src, const u8 bssid, const u8 data, size_t data_len, enum offchannel_send_action_resultresult)	tx_cb,
		int	no_cck
	)

Request off-channel Action frame TX.

Parameters

wpa_s	Pointer to wpa_supplicant data
freq	The frequency in MHz indicating the channel on which the frame is to transmitted or 0 for the current channel (only if associated)
dst	Action frame destination MAC address
src	Action frame source MAC address
bssid	Action frame BSSID
buf	Frame to transmit starting from the Category field
len	Length of buf in bytes
wait_time	Wait time for response in milliseconds
tx_cb	Callback function for indicating TX status or NULL for now callback
no_cck	Whether CCK rates are to be disallowed for TX rate selection

Returns: 0 on success or -1 on failure

This function is used to request an Action frame to be transmitted on the current operating channel or on another channel (off-channel). The actual frame transmission will be delayed until the driver is ready on the specified channel. The wait_time parameter can be used to request the driver to remain awake on the channel to wait for a response.

void offchannel_send_action_done ( struct wpa_supplicant * wpa_s )

Notify completion of Action frame sequence.

Parameters

wpa_s Pointer to wpa_supplicant data

This function can be used to cancel a wait for additional response frames on the channel that was used with offchannel_send_action().

void offchannel_send_action_tx_status	(	struct wpa_supplicant *	wpa_s,
		const u8 *	dst,
		const u8 *	data,
		size_t	data_len,
		enum offchannel_send_action_result	result
	)

TX status callback.

Parameters

wpa_s	Pointer to wpa_supplicant data
dst	Destination MAC address of the transmitted Action frame
data	Transmitted frame payload
data_len	Length of data in bytes
result	TX status

This function is called whenever the driver indicates a TX status event for a frame sent by offchannel_send_action() using wpa_drv_send_action().

Functions

Detailed Description

Function Documentation