Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 87bbbe22 authored by Arik Nemtsov's avatar Arik Nemtsov Committed by John W. Linville
Browse files

nl80211: Add probe response offload attribute 



Notify user-space about probe-response offloading support in the driver.

A wiphy flag is used to indicate support and a bitmap of protocols
determines which protocols are supported.

Signed-off-by: default avatarGuy Eilam <guy@wizery.com>
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d64d373f

include/linux/nl80211.h

+28 −0
Original line number Diff line number Diff line
@@ -1160,6 +1160,11 @@ enum nl80211_commands { 
 *

 * @NL80211_ATTR_FEATURE_FLAGS: This u32 attribute contains flags from

 *	&enum nl80211_feature_flags and is advertised in wiphy information.

 * @NL80211_ATTR_PROBE_RESP_OFFLOAD: Indicates that the HW responds to probe

 *

 *	requests while operating in AP-mode.

 *	This attribute holds a bitmap of the supported protocols for

 *	offloading (see &enum nl80211_probe_resp_offload_support_attr).

 *

 * @NL80211_ATTR_MAX: highest attribute number currently defined

 * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -1395,6 +1400,8 @@ enum nl80211_attrs { 


	NL80211_ATTR_FEATURE_FLAGS,



	NL80211_ATTR_PROBE_RESP_OFFLOAD,



	/* add attributes here, update the policy in nl80211.c */



	__NL80211_ATTR_AFTER_LAST,
@@ -2727,4 +2734,25 @@ enum nl80211_feature_flags { 
	NL80211_FEATURE_SK_TX_STATUS	= 1 << 0,

};



/**

 * enum nl80211_probe_resp_offload_support_attr - optional supported

 *	protocols for probe-response offloading by the driver/FW.

 *	To be used with the %NL80211_ATTR_PROBE_RESP_OFFLOAD attribute.

 *	Each enum value represents a bit in the bitmap of supported

 *	protocols. Typically a subset of probe-requests belonging to a

 *	supported protocol will be excluded from offload and uploaded

 *	to the host.

 *

 * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS: Support for WPS ver. 1

 * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2: Support for WPS ver. 2

 * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P: Support for P2P

 * @NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U: Support for 802.11u

 */

enum nl80211_probe_resp_offload_support_attr {

	NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS =	1<<0,

	NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 =	1<<1,

	NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P =	1<<2,

	NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U =	1<<3,

};



#endif /* __LINUX_NL80211_H */

include/net/cfg80211.h

+10 −0
Original line number Diff line number Diff line
@@ -1694,6 +1694,8 @@ struct cfg80211_ops { 
 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes

 *	when there are virtual interfaces in AP mode by calling

 *	cfg80211_report_obss_beacon().

 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device

 *	responds to probe-requests in hardware.

 */

enum wiphy_flags {

	WIPHY_FLAG_CUSTOM_REGULATORY		= BIT(0),
@@ -1714,6 +1716,7 @@ enum wiphy_flags { 
	WIPHY_FLAG_TDLS_EXTERNAL_SETUP		= BIT(16),

	WIPHY_FLAG_HAVE_AP_SME			= BIT(17),

	WIPHY_FLAG_REPORTS_OBSS			= BIT(18),

	WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD	= BIT(19),

};



/**
@@ -1982,6 +1985,13 @@ struct wiphy { 
	u32 available_antennas_tx;

	u32 available_antennas_rx;



	/*

	 * Bitmap of supported protocols for probe response offloading

	 * see &enum nl80211_probe_resp_offload_support_attr. Only valid

	 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.

	 */

	u32 probe_resp_offload;



	/* If multiple wiphys are registered and you're handed e.g.

	 * a regular netdev with assigned ieee80211_ptr, you won't

	 * know whether it points to a wiphy your driver has registered

net/wireless/nl80211.c

+4 −0
Original line number Diff line number Diff line
@@ -759,6 +759,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, 
	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,

		    dev->wiphy.available_antennas_rx);



	if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)

		NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,

			    dev->wiphy.probe_resp_offload);



	if ((dev->wiphy.available_antennas_tx ||

	     dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {

		u32 tx_ant = 0, rx_ant = 0;