Merge tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Quite a few changes:
 * the applicable eth_hw_addr_set() and const hw_addr changes
 * various code cleanups/refactorings
 * stack usage reductions across the wireless stack
 * some unstructured find_ie() -> structured find_element()
   changes
 * a few more pieces of multi-BSSID support
 * some 6 GHz regulatory support
 * 6 GHz support in hwsim, for testing userspace code
 * Light Communications (LC, 802.11bb) early band definitions
   to be able to add a first driver soon

* tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits)
  cfg80211: fix kernel-doc for MBSSID EMA
  mac80211: Prevent AP probing during suspend
  nl80211: Add LC placeholder band definition to nl80211_band
  ...
====================

Link: https://lore.kernel.org/r/20211021154953.134849-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

5 files changed, 270 insertions, 2 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index a1a7eda35cb5..e5c65eedb133 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1988,6 +1988,44 @@ int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
 			      int mcs, bool ext_nss_bw_capable,
 			      unsigned int max_vht_nss);
 
+/**
+ * enum ieee80211_ap_reg_power - regulatory power for a Access Point
+ *
+ * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
+ * @IEEE80211_REG_LPI: Indoor Access Point
+ * @IEEE80211_REG_SP: Standard power Access Point
+ * @IEEE80211_REG_VLP: Very low power Access Point
+ * @IEEE80211_REG_AP_POWER_AFTER_LAST: internal
+ * @IEEE80211_REG_AP_POWER_MAX: maximum value
+ */
+enum ieee80211_ap_reg_power {
+	IEEE80211_REG_UNSET_AP,
+	IEEE80211_REG_LPI_AP,
+	IEEE80211_REG_SP_AP,
+	IEEE80211_REG_VLP_AP,
+	IEEE80211_REG_AP_POWER_AFTER_LAST,
+	IEEE80211_REG_AP_POWER_MAX =
+		IEEE80211_REG_AP_POWER_AFTER_LAST - 1,
+};
+
+/**
+ * enum ieee80211_client_reg_power - regulatory power for a client
+ *
+ * @IEEE80211_REG_UNSET_CLIENT: Client has no regulatory power mode
+ * @IEEE80211_REG_DEFAULT_CLIENT: Default Client
+ * @IEEE80211_REG_SUBORDINATE_CLIENT: Subordinate Client
+ * @IEEE80211_REG_CLIENT_POWER_AFTER_LAST: internal
+ * @IEEE80211_REG_CLIENT_POWER_MAX: maximum value
+ */
+enum ieee80211_client_reg_power {
+	IEEE80211_REG_UNSET_CLIENT,
+	IEEE80211_REG_DEFAULT_CLIENT,
+	IEEE80211_REG_SUBORDINATE_CLIENT,
+	IEEE80211_REG_CLIENT_POWER_AFTER_LAST,
+	IEEE80211_REG_CLIENT_POWER_MAX =
+		IEEE80211_REG_CLIENT_POWER_AFTER_LAST - 1,
+};
+
 /* 802.11ax HE MAC capabilities */
 #define IEEE80211_HE_MAC_CAP0_HTC_HE				0x01
 #define IEEE80211_HE_MAC_CAP0_TWT_REQ				0x02
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 62dd8422e0dc..7c9d5db4f0e6 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -740,6 +740,22 @@ struct cfg80211_tid_config {
 };
 
 /**
+ * struct cfg80211_fils_aad - FILS AAD data
+ * @macaddr: STA MAC address
+ * @kek: FILS KEK
+ * @kek_len: FILS KEK length
+ * @snonce: STA Nonce
+ * @anonce: AP Nonce
+ */
+struct cfg80211_fils_aad {
+	const u8 *macaddr;
+	const u8 *kek;
+	u8 kek_len;
+	const u8 *snonce;
+	const u8 *anonce;
+};
+
+/**
  * cfg80211_get_chandef_type - return old channel type from chandef
  * @chandef: the channel definition
  *
@@ -1041,6 +1057,36 @@ struct cfg80211_crypto_settings {
 };
 
 /**
+ * struct cfg80211_mbssid_config - AP settings for multi bssid
+ *
+ * @tx_wdev: pointer to the transmitted interface in the MBSSID set
+ * @index: index of this AP in the multi bssid group.
+ * @ema: set to true if the beacons should be sent out in EMA mode.
+ */
+struct cfg80211_mbssid_config {
+	struct wireless_dev *tx_wdev;
+	u8 index;
+	bool ema;
+};
+
+/**
+ * struct cfg80211_mbssid_elems - Multiple BSSID elements
+ *
+ * @cnt: Number of elements in array %elems.
+ *
+ * @elem: Array of multiple BSSID element(s) to be added into Beacon frames.
+ * @elem.data: Data for multiple BSSID elements.
+ * @elem.len: Length of data.
+ */
+struct cfg80211_mbssid_elems {
+	u8 cnt;
+	struct {
+		const u8 *data;
+		size_t len;
+	} elem[];
+};
+
+/**
  * struct cfg80211_beacon_data - beacon data
  * @head: head portion of beacon (before TIM IE)
  *	or %NULL if not changed
@@ -1058,6 +1104,7 @@ struct cfg80211_crypto_settings {
  * @assocresp_ies_len: length of assocresp_ies in octets
  * @probe_resp_len: length of probe response template (@probe_resp)
  * @probe_resp: probe response template (AP mode only)
+ * @mbssid_ies: multiple BSSID elements
  * @ftm_responder: enable FTM responder functionality; -1 for no change
  *	(which also implies no change in LCI/civic location data)
  * @lci: Measurement Report element content, starting with Measurement Token
@@ -1075,6 +1122,7 @@ struct cfg80211_beacon_data {
 	const u8 *probe_resp;
 	const u8 *lci;
 	const u8 *civicloc;
+	struct cfg80211_mbssid_elems *mbssid_ies;
 	s8 ftm_responder;
 
 	size_t head_len, tail_len;
@@ -1189,6 +1237,7 @@ enum cfg80211_ap_settings_flags {
  * @he_oper: HE operation IE (or %NULL if HE isn't enabled)
  * @fils_discovery: FILS discovery transmission parameters
  * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters
+ * @mbssid_config: AP settings for multiple bssid
  */
 struct cfg80211_ap_settings {
 	struct cfg80211_chan_def chandef;
@@ -1221,6 +1270,7 @@ struct cfg80211_ap_settings {
 	struct cfg80211_he_bss_color he_bss_color;
 	struct cfg80211_fils_discovery fils_discovery;
 	struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp;
+	struct cfg80211_mbssid_config mbssid_config;
 };
 
 /**
@@ -4018,6 +4068,10 @@ struct mgmt_frame_regs {
  * @set_sar_specs: Update the SAR (TX power) settings.
  *
  * @color_change: Initiate a color change.
+ *
+ * @set_fils_aad: Set FILS AAD data to the AP driver so that the driver can use
+ *	those to decrypt (Re)Association Request and encrypt (Re)Association
+ *	Response frame.
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -4348,6 +4402,8 @@ struct cfg80211_ops {
 	int	(*color_change)(struct wiphy *wiphy,
 				struct net_device *dev,
 				struct cfg80211_color_change_settings *params);
+	int     (*set_fils_aad)(struct wiphy *wiphy, struct net_device *dev,
+				struct cfg80211_fils_aad *fils_aad);
 };
 
 /*
@@ -4981,6 +5037,13 @@ struct wiphy_iftype_akm_suites {
  *	%NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes
  * @sar_capa: SAR control capabilities
  * @rfkill: a pointer to the rfkill structure
+ *
+ * @mbssid_max_interfaces: maximum number of interfaces supported by the driver
+ *	in a multiple BSSID set. This field must be set to a non-zero value
+ *	by the driver to advertise MBSSID support.
+ * @ema_max_profile_periodicity: maximum profile periodicity supported by
+ *	the driver. Setting this field to a non-zero value indicates that the
+ *	driver supports enhanced multi-BSSID advertisements (EMA AP).
  */
 struct wiphy {
 	struct mutex mtx;
@@ -5125,6 +5188,9 @@ struct wiphy {
 
 	struct rfkill *rfkill;
 
+	u8 mbssid_max_interfaces;
+	u8 ema_max_profile_periodicity;
+
 	char priv[] __aligned(NETDEV_ALIGN);
 };
 
@@ -5492,7 +5558,7 @@ struct wireless_dev {
 	unsigned long unprot_beacon_reported;
 };
 
-static inline u8 *wdev_address(struct wireless_dev *wdev)
+static inline const u8 *wdev_address(struct wireless_dev *wdev)
 {
 	if (wdev->netdev)
 		return wdev->netdev->dev_addr;
@@ -6311,6 +6377,17 @@ static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid,
 }
 
 /**
+ * cfg80211_get_ies_channel_number - returns the channel number from ies
+ * @ie: IEs
+ * @ielen: length of IEs
+ * @band: enum nl80211_band of the channel
+ *
+ * Returns the channel number, or -1 if none could be determined.
+ */
+int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen,
+				    enum nl80211_band band);
+
+/**
  * cfg80211_is_element_inherited - returns if element ID should be inherited
  * @element: element to check
  * @non_inherit_element: non inheritance element
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 618d1f427cb2..dd757f0987b0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -632,6 +632,10 @@ struct ieee80211_fils_discovery {
  * @s1g: BSS is S1G BSS (affects Association Request format).
  * @beacon_tx_rate: The configured beacon transmit rate that needs to be passed
  *	to driver when rate control is offloaded to firmware.
+ * @power_type: power type of BSS for 6 GHz
+ * @tx_pwr_env: transmit power envelope array of BSS.
+ * @tx_pwr_env_num: number of @tx_pwr_env.
+ * @pwr_reduction: power constraint of BSS.
  */
 struct ieee80211_bss_conf {
 	const u8 *bssid;
@@ -702,6 +706,10 @@ struct ieee80211_bss_conf {
 	u32 unsol_bcast_probe_resp_interval;
 	bool s1g;
 	struct cfg80211_bitrate_mask beacon_tx_rate;
+	enum ieee80211_ap_reg_power power_type;
+	struct ieee80211_tx_pwr_env tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
+	u8 tx_pwr_env_num;
+	u8 pwr_reduction;
 };
 
 /**
@@ -1715,6 +1723,7 @@ enum ieee80211_offload_flags {
  *	write-protected by sdata_lock and local->mtx so holding either is fine
  *	for read access.
  * @color_change_color: the bss color that will be used after the change.
+ * @mbssid_tx_vif: Pointer to the transmitting interface if MBSSID is enabled.
  */
 struct ieee80211_vif {
 	enum nl80211_iftype type;
@@ -1746,6 +1755,8 @@ struct ieee80211_vif {
 	bool color_change_active;
 	u8 color_change_color;
 
+	struct ieee80211_vif *mbssid_tx_vif;
+
 	/* must be last */
 	u8 drv_priv[] __aligned(sizeof(void *));
 };
diff --git a/include/uapi/linux/nl80211-vnd-intel.h b/include/uapi/linux/nl80211-vnd-intel.h
index 0bf177b84fd9..4ed7d0b24512 100644
--- a/include/uapi/linux/nl80211-vnd-intel.h
+++ b/include/uapi/linux/nl80211-vnd-intel.h
@@ -13,6 +13,35 @@
  * enum iwl_mvm_vendor_cmd - supported vendor commands
  * @IWL_MVM_VENDOR_CMD_GET_CSME_CONN_INFO: reports CSME connection info.
  * @IWL_MVM_VENDOR_CMD_HOST_GET_OWNERSHIP: asks for ownership on the device.
+ *	This is useful when the CSME firmware owns the device and the kernel
+ *	wants to use it. In case the CSME firmware has no connection active the
+ *	kernel will manage on its own to get ownership of the device.
+ *	When the CSME firmware has an active connection, the user space
+ *	involvement is required. The kernel will assert the RFKILL signal with
+ *	the "device not owned" reason so that nobody can touch the device. Then
+ *	the user space can run the following flow to be able to get connected
+ *	to the very same AP the CSME firmware is currently connected to:
+ *
+ *	1) The user space (NetworkManager) boots and sees that the device is
+ *	    in RFKILL because the host doesn't own the device
+ *	2) The user space asks the kernel what AP the CSME firmware is
+ *	   connected to (with %IWL_MVM_VENDOR_CMD_GET_CSME_CONN_INFO)
+ *	3) The user space checks if it has a profile that matches the reply
+ *	   from the CSME firmware
+ *	4) The user space installs a network to the wpa_supplicant with a
+ *	   specific BSSID and a specific frequency
+ *	5) The user space prevents any type of full scan
+ *	6) The user space asks iwlmei to request ownership on the device (with
+ *	   this command)
+ *	7) iwlmei requests ownership from the CSME firmware
+ *	8) The CSME firmware grants ownership
+ *	9) iwlmei tells iwlwifi to lift the RFKILL
+ *	10) RFKILL OFF is reported to user space
+ *	11) The host boots the device, loads the firwmare, and connects to a
+ *	    specific BSSID without scanning including IP as fast as it can
+ *	12) The host reports to the CSME firmware that there is a connection
+ *	13) The TCP connection is preserved and the host has connectivity
+ *
  * @IWL_MVM_VENDOR_CMD_ROAMING_FORBIDDEN_EVENT: notifies if roaming is allowed.
  *	It contains a &IWL_MVM_VENDOR_ATTR_ROAMING_FORBIDDEN and a
  *	&IWL_MVM_VENDOR_ATTR_VIF_ADDR attributes.
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index c2efea98e060..61cab81e920d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -301,6 +301,29 @@
  */
 
 /**
+ * DOC: FILS shared key crypto offload
+ *
+ * This feature is applicable to drivers running in AP mode.
+ *
+ * FILS shared key crypto offload can be advertised by drivers by setting
+ * @NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD flag. The drivers that support
+ * FILS shared key crypto offload should be able to encrypt and decrypt
+ * association frames for FILS shared key authentication as per IEEE 802.11ai.
+ * With this capability, for FILS key derivation, drivers depend on userspace.
+ *
+ * After FILS key derivation, userspace shares the FILS AAD details with the
+ * driver and the driver stores the same to use in decryption of association
+ * request and in encryption of association response. The below parameters
+ * should be given to the driver in %NL80211_CMD_SET_FILS_AAD.
+ *	%NL80211_ATTR_MAC - STA MAC address, used for storing FILS AAD per STA
+ *	%NL80211_ATTR_FILS_KEK - Used for encryption or decryption
+ *	%NL80211_ATTR_FILS_NONCES - Used for encryption or decryption
+ *			(STA Nonce 16 bytes followed by AP Nonce 16 bytes)
+ *
+ * Once the association is done, the driver cleans the FILS AAD data.
+ */
+
+/**
  * enum nl80211_commands - supported nl80211 commands
  *
  * @NL80211_CMD_UNSPEC: unspecified command to catch errors
@@ -337,7 +360,10 @@
  * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
  *	%NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
  *	userspace to request deletion of a virtual interface, then requires
- *	attribute %NL80211_ATTR_IFINDEX.
+ *	attribute %NL80211_ATTR_IFINDEX. If multiple BSSID advertisements are
+ *	enabled using %NL80211_ATTR_MBSSID_CONFIG, %NL80211_ATTR_MBSSID_ELEMS,
+ *	and if this command is used for the transmitting interface, then all
+ *	the non-transmitting interfaces are deleted as well.
  *
  * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
  *	by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
@@ -1200,6 +1226,12 @@
  * @NL80211_CMD_COLOR_CHANGE_COMPLETED: Notify userland that the color change
  *	has completed
  *
+ * @NL80211_CMD_SET_FILS_AAD: Set FILS AAD data to the driver using -
+ *	&NL80211_ATTR_MAC - for STA MAC address
+ *	&NL80211_ATTR_FILS_KEK - for KEK
+ *	&NL80211_ATTR_FILS_NONCES - for FILS Nonces
+ *		(STA Nonce 16 bytes followed by AP Nonce 16 bytes)
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -1440,6 +1472,8 @@ enum nl80211_commands {
 	NL80211_CMD_COLOR_CHANGE_ABORTED,
 	NL80211_CMD_COLOR_CHANGE_COMPLETED,
 
+	NL80211_CMD_SET_FILS_AAD,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -2593,6 +2627,18 @@ enum nl80211_commands {
  * @NL80211_ATTR_COLOR_CHANGE_ELEMS: Nested set of attributes containing the IE
  *	information for the time while performing a color switch.
  *
+ * @NL80211_ATTR_MBSSID_CONFIG: Nested attribute for multiple BSSID
+ *	advertisements (MBSSID) parameters in AP mode.
+ *	Kernel uses this attribute to indicate the driver's support for MBSSID
+ *	and enhanced multi-BSSID advertisements (EMA AP) to the userspace.
+ *	Userspace should use this attribute to configure per interface MBSSID
+ *	parameters.
+ *	See &enum nl80211_mbssid_config_attributes for details.
+ *
+ * @NL80211_ATTR_MBSSID_ELEMS: Nested parameter to pass multiple BSSID elements.
+ *	Mandatory parameter for the transmitting interface to enable MBSSID.
+ *	Optional for the non-transmitting interfaces.
+ *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3096,6 +3142,9 @@ enum nl80211_attrs {
 	NL80211_ATTR_COLOR_CHANGE_COLOR,
 	NL80211_ATTR_COLOR_CHANGE_ELEMS,
 
+	NL80211_ATTR_MBSSID_CONFIG,
+	NL80211_ATTR_MBSSID_ELEMS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -4929,6 +4978,7 @@ enum nl80211_txrate_gi {
  * @NL80211_BAND_60GHZ: around 60 GHz band (58.32 - 69.12 GHz)
  * @NL80211_BAND_6GHZ: around 6 GHz band (5.9 - 7.2 GHz)
  * @NL80211_BAND_S1GHZ: around 900MHz, supported by S1G PHYs
+ * @NL80211_BAND_LC: light communication band (placeholder)
  * @NUM_NL80211_BANDS: number of bands, avoid using this in userspace
  *	since newer kernel versions may support more bands
  */
@@ -4938,6 +4988,7 @@ enum nl80211_band {
 	NL80211_BAND_60GHZ,
 	NL80211_BAND_6GHZ,
 	NL80211_BAND_S1GHZ,
+	NL80211_BAND_LC,
 
 	NUM_NL80211_BANDS,
 };
@@ -5995,6 +6046,11 @@ enum nl80211_feature_flags {
  * @NL80211_EXT_FEATURE_BSS_COLOR: The driver supports BSS color collision
  *	detection and change announcemnts.
  *
+ * @NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD: Driver running in AP mode supports
+ *	FILS encryption and decryption for (Re)Association Request and Response
+ *	frames. Userspace has to share FILS AAD details to the driver by using
+ *	@NL80211_CMD_SET_FILS_AAD.
+ *
  * @NUM_NL80211_EXT_FEATURES: number of extended features.
  * @MAX_NL80211_EXT_FEATURES: highest extended feature index.
  */
@@ -6060,6 +6116,7 @@ enum nl80211_ext_feature_index {
 	NL80211_EXT_FEATURE_SECURE_RTT,
 	NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE,
 	NL80211_EXT_FEATURE_BSS_COLOR,
+	NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD,
 
 	/* add new features before the definition below */
 	NUM_NL80211_EXT_FEATURES,
@@ -7349,4 +7406,60 @@ enum nl80211_sar_specs_attrs {
 	NL80211_SAR_ATTR_SPECS_MAX = __NL80211_SAR_ATTR_SPECS_LAST - 1,
 };
 
+/**
+ * enum nl80211_mbssid_config_attributes - multiple BSSID (MBSSID) and enhanced
+ * multi-BSSID advertisements (EMA) in AP mode.
+ * Kernel uses some of these attributes to advertise driver's support for
+ * MBSSID and EMA.
+ * Remaining attributes should be used by the userspace to configure the
+ * features.
+ *
+ * @__NL80211_MBSSID_CONFIG_ATTR_INVALID: Invalid
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES: Used by the kernel to advertise
+ *	the maximum number of MBSSID interfaces supported by the driver.
+ *	Driver should indicate MBSSID support by setting
+ *	wiphy->mbssid_max_interfaces to a value more than or equal to 2.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY: Used by the kernel
+ *	to advertise the maximum profile periodicity supported by the driver
+ *	if EMA is enabled. Driver should indicate EMA support to the userspace
+ *	by setting wiphy->ema_max_profile_periodicity to
+ *	a non-zero value.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_INDEX: Mandatory parameter to pass the index of
+ *	this BSS (u8) in the multiple BSSID set.
+ *	Value must be set to 0 for the transmitting interface and non-zero for
+ *	all non-transmitting interfaces. The userspace will be responsible
+ *	for using unique indices for the interfaces.
+ *	Range: 0 to wiphy->mbssid_max_interfaces-1.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX: Mandatory parameter for
+ *	a non-transmitted profile which provides the interface index (u32) of
+ *	the transmitted profile. The value must match one of the interface
+ *	indices advertised by the kernel. Optional if the interface being set up
+ *	is the transmitting one, however, if provided then the value must match
+ *	the interface index of the same.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_EMA: Flag used to enable EMA AP feature.
+ *	Setting this flag is permitted only if the driver advertises EMA support
+ *	by setting wiphy->ema_max_profile_periodicity to non-zero.
+ *
+ * @__NL80211_MBSSID_CONFIG_ATTR_LAST: Internal
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX: highest attribute
+ */
+enum nl80211_mbssid_config_attributes {
+	__NL80211_MBSSID_CONFIG_ATTR_INVALID,
+
+	NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES,
+	NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY,
+	NL80211_MBSSID_CONFIG_ATTR_INDEX,
+	NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX,
+	NL80211_MBSSID_CONFIG_ATTR_EMA,
+
+	/* keep last */
+	__NL80211_MBSSID_CONFIG_ATTR_LAST,
+	NL80211_MBSSID_CONFIG_ATTR_MAX = __NL80211_MBSSID_CONFIG_ATTR_LAST - 1,
+};
+
 #endif /* __LINUX_NL80211_H */