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Document offchannel Action frame TX functions

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Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-12-22 11:06:56 +02:00
parent 3ab35a6603
commit b4419c62ad
2 changed files with 70 additions and 3 deletions
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63
wpa_supplicant/offchannel.c
View File

@ -132,6 +132,17 @@ static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
}
/**
* offchannel_send_action_tx_status - TX status callback
* @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().
*/
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)
@ -164,6 +175,27 @@ void offchannel_send_action_tx_status(
}
/**
* offchannel_send_action - Request off-channel Action frame TX
* @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.
*/
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,
@ -266,6 +298,13 @@ int offchannel_send_action(struct wpa_supplicant *wpa_s, unsigned int freq,
}
/**
* offchannel_send_send_action_done - Notify completion of Action frame sequence
* @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_done(struct wpa_supplicant *wpa_s)
{
wpa_printf(MSG_DEBUG, "Off-channel: Action frame sequence done "
@ -284,6 +323,15 @@ void offchannel_send_action_done(struct wpa_supplicant *wpa_s)
}
/**
* offchannel_remain_on_channel_cb - Remain-on-channel callback function
* @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.
*/
void offchannel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq, unsigned int duration)
{
@ -293,6 +341,14 @@ void offchannel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
}
/**
* offchannel_cancel_remain_on_channel_cb - Remain-on-channel stopped callback
* @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_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq)
{
@ -300,6 +356,13 @@ void offchannel_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
}
/**
* offchannel_deinit - Deinit off-channel operations
* @wpa_s: Pointer to wpa_supplicant data
*
* This function is used to free up any allocated resources for off-channel
* operations.
*/
void offchannel_deinit(struct wpa_supplicant *wpa_s)
{
wpabuf_free(wpa_s->pending_action_tx);

10
wpa_supplicant/wpa_supplicant_i.h
View File

@ -249,11 +249,15 @@ struct wpa_global {
};
/**
* offchannel_send_action_result - Result of offchannel send Action frame
*/
enum offchannel_send_action_result {
OFFCHANNEL_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
OFFCHANNEL_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged
OFFCHANNEL_SEND_ACTION_SUCCESS /**< Frame was send and acknowledged */,
OFFCHANNEL_SEND_ACTION_NO_ACK /**< Frame was sent, but not acknowledged
*/,
OFFCHANNEL_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
OFFCHANNEL_SEND_ACTION_FAILED /**< Frame was not sent due to a failure
*/
};
struct wps_ap_info {