include/linux/ieee80211.h - kernel/msm-4.19 - Gitiles

 /*
  * IEEE 802.11 defines
  *
  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
  * <jkmaline@cc.hut.fi>
  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
  * Copyright (c) 2005, Devicescape Software, Inc.
  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright (c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */

 #ifndef LINUX_IEEE80211_H
 #define LINUX_IEEE80211_H

 #include <linux/types.h>
 #include <linux/if_ether.h>
 #include <linux/etherdevice.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>

 /*
  * DS bit usage
  *
  * TA = transmitter address
  * RA = receiver address
  * DA = destination address
  * SA = source address
  *
  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  * -----------------------------------------------------------------
  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  *  0       1       DA      BSSID   SA      -       AP -> STA
  *  1       0       BSSID   SA      DA      -       AP <- STA
  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  */

 #define FCS_LEN 4

 #define IEEE80211_FCTL_VERS		0x0003
 #define IEEE80211_FCTL_FTYPE		0x000c
 #define IEEE80211_FCTL_STYPE		0x00f0
 #define IEEE80211_FCTL_TODS		0x0100
 #define IEEE80211_FCTL_FROMDS		0x0200
 #define IEEE80211_FCTL_MOREFRAGS	0x0400
 #define IEEE80211_FCTL_RETRY		0x0800
 #define IEEE80211_FCTL_PM		0x1000
 #define IEEE80211_FCTL_MOREDATA		0x2000
 #define IEEE80211_FCTL_PROTECTED	0x4000
 #define IEEE80211_FCTL_ORDER		0x8000
 #define IEEE80211_FCTL_CTL_EXT		0x0f00

 #define IEEE80211_SCTL_FRAG		0x000F
 #define IEEE80211_SCTL_SEQ		0xFFF0

 #define IEEE80211_FTYPE_MGMT		0x0000
 #define IEEE80211_FTYPE_CTL		0x0004
 #define IEEE80211_FTYPE_DATA		0x0008
 #define IEEE80211_FTYPE_EXT		0x000c

 /* management */
 #define IEEE80211_STYPE_ASSOC_REQ	0x0000
 #define IEEE80211_STYPE_ASSOC_RESP	0x0010
 #define IEEE80211_STYPE_REASSOC_REQ	0x0020
 #define IEEE80211_STYPE_REASSOC_RESP	0x0030
 #define IEEE80211_STYPE_PROBE_REQ	0x0040
 #define IEEE80211_STYPE_PROBE_RESP	0x0050
 #define IEEE80211_STYPE_BEACON		0x0080
 #define IEEE80211_STYPE_ATIM		0x0090
 #define IEEE80211_STYPE_DISASSOC	0x00A0
 #define IEEE80211_STYPE_AUTH		0x00B0
 #define IEEE80211_STYPE_DEAUTH		0x00C0
 #define IEEE80211_STYPE_ACTION		0x00D0

 /* control */
 #define IEEE80211_STYPE_CTL_EXT		0x0060
 #define IEEE80211_STYPE_BACK_REQ	0x0080
 #define IEEE80211_STYPE_BACK		0x0090
 #define IEEE80211_STYPE_PSPOLL		0x00A0
 #define IEEE80211_STYPE_RTS		0x00B0
 #define IEEE80211_STYPE_CTS		0x00C0
 #define IEEE80211_STYPE_ACK		0x00D0
 #define IEEE80211_STYPE_CFEND		0x00E0
 #define IEEE80211_STYPE_CFENDACK	0x00F0

 /* data */
 #define IEEE80211_STYPE_DATA			0x0000
 #define IEEE80211_STYPE_DATA_CFACK		0x0010
 #define IEEE80211_STYPE_DATA_CFPOLL		0x0020
 #define IEEE80211_STYPE_DATA_CFACKPOLL		0x0030
 #define IEEE80211_STYPE_NULLFUNC		0x0040
 #define IEEE80211_STYPE_CFACK			0x0050
 #define IEEE80211_STYPE_CFPOLL			0x0060
 #define IEEE80211_STYPE_CFACKPOLL		0x0070
 #define IEEE80211_STYPE_QOS_DATA		0x0080
 #define IEEE80211_STYPE_QOS_DATA_CFACK		0x0090
 #define IEEE80211_STYPE_QOS_DATA_CFPOLL		0x00A0
 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL	0x00B0
 #define IEEE80211_STYPE_QOS_NULLFUNC		0x00C0
 #define IEEE80211_STYPE_QOS_CFACK		0x00D0
 #define IEEE80211_STYPE_QOS_CFPOLL		0x00E0
 #define IEEE80211_STYPE_QOS_CFACKPOLL		0x00F0

 /* extension, added by 802.11ad */
 #define IEEE80211_STYPE_DMG_BEACON		0x0000

 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 #define IEEE80211_CTL_EXT_POLL		0x2000
 #define IEEE80211_CTL_EXT_SPR		0x3000
 #define IEEE80211_CTL_EXT_GRANT	0x4000
 #define IEEE80211_CTL_EXT_DMG_CTS	0x5000
 #define IEEE80211_CTL_EXT_DMG_DTS	0x6000
 #define IEEE80211_CTL_EXT_SSW		0x8000
 #define IEEE80211_CTL_EXT_SSW_FBACK	0x9000
 #define IEEE80211_CTL_EXT_SSW_ACK	0xa000


 #define IEEE80211_SN_MASK		((IEEE80211_SCTL_SEQ) >> 4)
 #define IEEE80211_MAX_SN		IEEE80211_SN_MASK
 #define IEEE80211_SN_MODULO		(IEEE80211_MAX_SN + 1)

 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 {
 	return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 }

 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 {
 	return (sn1 + sn2) & IEEE80211_SN_MASK;
 }

 static inline u16 ieee80211_sn_inc(u16 sn)
 {
 	return ieee80211_sn_add(sn, 1);
 }

 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 {
 	return (sn1 - sn2) & IEEE80211_SN_MASK;
 }

 #define IEEE80211_SEQ_TO_SN(seq)	(((seq) & IEEE80211_SCTL_SEQ) >> 4)
 #define IEEE80211_SN_TO_SEQ(ssn)	(((ssn) << 4) & IEEE80211_SCTL_SEQ)

 /* miscellaneous IEEE 802.11 constants */
 #define IEEE80211_MAX_FRAG_THRESHOLD	2352
 #define IEEE80211_MAX_RTS_THRESHOLD	2353
 #define IEEE80211_MAX_AID		2007
 #define IEEE80211_MAX_TIM_LEN		251
 #define IEEE80211_MAX_MESH_PEERINGS	63
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
    6.2.1.1.2.

    802.11e clarifies the figure in section 7.1.2. The frame body is
    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 #define IEEE80211_MAX_DATA_LEN		2304
 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
  * to 7920 bytes, see 8.2.3 General frame format
  */
 #define IEEE80211_MAX_DATA_LEN_DMG	7920
 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 #define IEEE80211_MAX_FRAME_LEN		2352

 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
 #define IEEE80211_MAX_MPDU_LEN_HT_BA		4095

 /* Maximal size of an A-MSDU */
 #define IEEE80211_MAX_MPDU_LEN_HT_3839		3839
 #define IEEE80211_MAX_MPDU_LEN_HT_7935		7935

 #define IEEE80211_MAX_MPDU_LEN_VHT_3895		3895
 #define IEEE80211_MAX_MPDU_LEN_VHT_7991		7991
 #define IEEE80211_MAX_MPDU_LEN_VHT_11454	11454

 #define IEEE80211_MAX_SSID_LEN		32

 #define IEEE80211_MAX_MESH_ID_LEN	32

 #define IEEE80211_FIRST_TSPEC_TSID	8
 #define IEEE80211_NUM_TIDS		16

 /* number of user priorities 802.11 uses */
 #define IEEE80211_NUM_UPS		8
 /* number of ACs */
 #define IEEE80211_NUM_ACS		4

 #define IEEE80211_QOS_CTL_LEN		2
 /* 1d tag mask */
 #define IEEE80211_QOS_CTL_TAG1D_MASK		0x0007
 /* TID mask */
 #define IEEE80211_QOS_CTL_TID_MASK		0x000f
 /* EOSP */
 #define IEEE80211_QOS_CTL_EOSP			0x0010
 /* ACK policy */
 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL	0x0000
 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK	0x0020
 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL	0x0040
 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK	0x0060
 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK	0x0060
 /* A-MSDU 802.11n */
 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT	0x0080
 /* Mesh Control 802.11s */
 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100

 /* Mesh Power Save Level */
 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL		0x0200
 /* Mesh Receiver Service Period Initiated */
 #define IEEE80211_QOS_CTL_RSPI			0x0400

 /* U-APSD queue for WMM IEs sent by AP */
 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD	(1<<7)
 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK	0x0f

 /* U-APSD queues for WMM IEs sent by STA */
 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO	(1<<0)
 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI	(1<<1)
 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK	(1<<2)
 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE	(1<<3)
 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK	0x0f

 /* U-APSD max SP length for WMM IEs sent by STA */
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL	0x00
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2	0x01
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4	0x02
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6	0x03
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK	0x03
 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT	5

 #define IEEE80211_HT_CTL_LEN		4

 struct ieee80211_hdr {
 	__le16 frame_control;
 	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
 	__le16 seq_ctrl;
 	u8 addr4[ETH_ALEN];
 } __packed __aligned(2);

 struct ieee80211_hdr_3addr {
 	__le16 frame_control;
 	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
 	__le16 seq_ctrl;
 } __packed __aligned(2);

 struct ieee80211_qos_hdr {
 	__le16 frame_control;
 	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
 	__le16 seq_ctrl;
 	__le16 qos_ctrl;
 } __packed __aligned(2);

 /**
  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_tods(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 }

 /**
  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_fromds(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 }

 /**
  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_a4(__le16 fc)
 {
 	__le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 	return (fc & tmp) == tmp;
 }

 /**
  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_morefrags(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 }

 /**
  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_retry(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 }

 /**
  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_pm(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 }

 /**
  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_moredata(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 }

 /**
  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_protected(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 }

 /**
  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_has_order(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 }

 /**
  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_mgmt(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT);
 }

 /**
  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_ctl(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL);
 }

 /**
  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_data(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_DATA);
 }

 /**
  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_data_qos(__le16 fc)
 {
 	/*
 	 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 	 * to check the one bit
 	 */
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 }

 /**
  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_data_present(__le16 fc)
 {
 	/*
 	 * mask with 0x40 and test that that bit is clear to only return true
 	 * for the data-containing substypes.
 	 */
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_DATA);
 }

 /**
  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_assoc_req(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 }

 /**
  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 }

 /**
  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 }

 /**
  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 }

 /**
  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_probe_req(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 }

 /**
  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_probe_resp(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 }

 /**
  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_beacon(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 }

 /**
  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_atim(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 }

 /**
  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_disassoc(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 }

 /**
  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_auth(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 }

 /**
  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_deauth(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 }

 /**
  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_action(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 }

 /**
  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_back_req(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 }

 /**
  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_back(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 }

 /**
  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_pspoll(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 }

 /**
  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_rts(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 }

 /**
  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_cts(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 }

 /**
  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_ack(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 }

 /**
  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_cfend(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 }

 /**
  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_cfendack(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 }

 /**
  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_nullfunc(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 }

 /**
  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
  * @fc: frame control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 {
 	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 	       cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 }

 /**
  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
  * @fc: frame control field in little-endian byteorder
  */
 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 {
 	/* IEEE 802.11-2012, definition of "bufferable management frame";
 	 * note that this ignores the IBSS special case. */
 	return ieee80211_is_mgmt(fc) &&
 	       (ieee80211_is_action(fc) ||
 		ieee80211_is_disassoc(fc) ||
 		ieee80211_is_deauth(fc));
 }

 /**
  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
  */
 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 {
 	return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 }

 /**
  * ieee80211_is_frag - check if a frame is a fragment
  * @hdr: 802.11 header of the frame
  */
 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 {
 	return ieee80211_has_morefrags(hdr->frame_control) ||
 	       hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 }

 struct ieee80211s_hdr {
 	u8 flags;
 	u8 ttl;
 	__le32 seqnum;
 	u8 eaddr1[ETH_ALEN];
 	u8 eaddr2[ETH_ALEN];
 } __packed __aligned(2);

 /* Mesh flags */
 #define MESH_FLAGS_AE_A4 	0x1
 #define MESH_FLAGS_AE_A5_A6	0x2
 #define MESH_FLAGS_AE		0x3
 #define MESH_FLAGS_PS_DEEP	0x4

 /**
  * enum ieee80211_preq_flags - mesh PREQ element flags
  *
  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
  */
 enum ieee80211_preq_flags {
 	IEEE80211_PREQ_PROACTIVE_PREP_FLAG	= 1<<2,
 };

 /**
  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
  *
  * @IEEE80211_PREQ_TO_FLAG: target only subfield
  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
  */
 enum ieee80211_preq_target_flags {
 	IEEE80211_PREQ_TO_FLAG	= 1<<0,
 	IEEE80211_PREQ_USN_FLAG	= 1<<2,
 };

 /**
  * struct ieee80211_quiet_ie
  *
  * This structure refers to "Quiet information element"
  */
 struct ieee80211_quiet_ie {
 	u8 count;
 	u8 period;
 	__le16 duration;
 	__le16 offset;
 } __packed;

 /**
  * struct ieee80211_msrment_ie
  *
  * This structure refers to "Measurement Request/Report information element"
  */
 struct ieee80211_msrment_ie {
 	u8 token;
 	u8 mode;
 	u8 type;
 	u8 request[0];
 } __packed;

 /**
  * struct ieee80211_channel_sw_ie
  *
  * This structure refers to "Channel Switch Announcement information element"
  */
 struct ieee80211_channel_sw_ie {
 	u8 mode;
 	u8 new_ch_num;
 	u8 count;
 } __packed;

 /**
  * struct ieee80211_ext_chansw_ie
  *
  * This structure represents the "Extended Channel Switch Announcement element"
  */
 struct ieee80211_ext_chansw_ie {
 	u8 mode;
 	u8 new_operating_class;
 	u8 new_ch_num;
 	u8 count;
 } __packed;

 /**
  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
  *	values here
  * This structure represents the "Secondary Channel Offset element"
  */
 struct ieee80211_sec_chan_offs_ie {
 	u8 sec_chan_offs;
 } __packed;

 /**
  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
  *
  * This structure represents the "Mesh Channel Switch Paramters element"
  */
 struct ieee80211_mesh_chansw_params_ie {
 	u8 mesh_ttl;
 	u8 mesh_flags;
 	__le16 mesh_reason;
 	__le16 mesh_pre_value;
 } __packed;

 /**
  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
  */
 struct ieee80211_wide_bw_chansw_ie {
 	u8 new_channel_width;
 	u8 new_center_freq_seg0, new_center_freq_seg1;
 } __packed;

 /**
  * struct ieee80211_tim
  *
  * This structure refers to "Traffic Indication Map information element"
  */
 struct ieee80211_tim_ie {
 	u8 dtim_count;
 	u8 dtim_period;
 	u8 bitmap_ctrl;
 	/* variable size: 1 - 251 bytes */
 	u8 virtual_map[1];
 } __packed;

 /**
  * struct ieee80211_meshconf_ie
  *
  * This structure refers to "Mesh Configuration information element"
  */
 struct ieee80211_meshconf_ie {
 	u8 meshconf_psel;
 	u8 meshconf_pmetric;
 	u8 meshconf_congest;
 	u8 meshconf_synch;
 	u8 meshconf_auth;
 	u8 meshconf_form;
 	u8 meshconf_cap;
 } __packed;

 /**
  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
  *
  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
  *	additional mesh peerings with other mesh STAs
  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
  *	is ongoing
  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
  *	neighbors in deep sleep mode
  */
 enum mesh_config_capab_flags {
 	IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS		= 0x01,
 	IEEE80211_MESHCONF_CAPAB_FORWARDING		= 0x08,
 	IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING		= 0x20,
 	IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL	= 0x40,
 };

 /**
  * mesh channel switch parameters element's flag indicator
  *
  */
 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)

 /**
  * struct ieee80211_rann_ie
  *
  * This structure refers to "Root Announcement information element"
  */
 struct ieee80211_rann_ie {
 	u8 rann_flags;
 	u8 rann_hopcount;
 	u8 rann_ttl;
 	u8 rann_addr[ETH_ALEN];
 	__le32 rann_seq;
 	__le32 rann_interval;
 	__le32 rann_metric;
 } __packed;

 enum ieee80211_rann_flags {
 	RANN_FLAG_IS_GATE = 1 << 0,
 };

 enum ieee80211_ht_chanwidth_values {
 	IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 	IEEE80211_HT_CHANWIDTH_ANY = 1,
 };

 /**
  * enum ieee80211_opmode_bits - VHT operating mode field bits
  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
  *	(the NSS value is the value of this field + 1)
  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
  *	using a beamforming steering matrix
  */
 enum ieee80211_vht_opmode_bits {
 	IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK	= 3,
 	IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ	= 0,
 	IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ	= 1,
 	IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ	= 2,
 	IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ	= 3,
 	IEEE80211_OPMODE_NOTIF_RX_NSS_MASK	= 0x70,
 	IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT	= 4,
 	IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF	= 0x80,
 };

 #define WLAN_SA_QUERY_TR_ID_LEN 2
 #define WLAN_MEMBERSHIP_LEN 8
 #define WLAN_USER_POSITION_LEN 16

 /**
  * struct ieee80211_tpc_report_ie
  *
  * This structure refers to "TPC Report element"
  */
 struct ieee80211_tpc_report_ie {
 	u8 tx_power;
 	u8 link_margin;
 } __packed;

 struct ieee80211_mgmt {
 	__le16 frame_control;
 	__le16 duration;
 	u8 da[ETH_ALEN];
 	u8 sa[ETH_ALEN];
 	u8 bssid[ETH_ALEN];
 	__le16 seq_ctrl;
 	union {
 		struct {
 			__le16 auth_alg;
 			__le16 auth_transaction;
 			__le16 status_code;
 			/* possibly followed by Challenge text */
 			u8 variable[0];
 		} __packed auth;
 		struct {
 			__le16 reason_code;
 		} __packed deauth;
 		struct {
 			__le16 capab_info;
 			__le16 listen_interval;
 			/* followed by SSID and Supported rates */
 			u8 variable[0];
 		} __packed assoc_req;
 		struct {
 			__le16 capab_info;
 			__le16 status_code;
 			__le16 aid;
 			/* followed by Supported rates */
 			u8 variable[0];
 		} __packed assoc_resp, reassoc_resp;
 		struct {
 			__le16 capab_info;
 			__le16 listen_interval;
 			u8 current_ap[ETH_ALEN];
 			/* followed by SSID and Supported rates */
 			u8 variable[0];
 		} __packed reassoc_req;
 		struct {
 			__le16 reason_code;
 		} __packed disassoc;
 		struct {
 			__le64 timestamp;
 			__le16 beacon_int;
 			__le16 capab_info;
 			/* followed by some of SSID, Supported rates,
 			 * FH Params, DS Params, CF Params, IBSS Params, TIM */
 			u8 variable[0];
 		} __packed beacon;
 		struct {
 			/* only variable items: SSID, Supported rates */
 			u8 variable[0];
 		} __packed probe_req;
 		struct {
 			__le64 timestamp;
 			__le16 beacon_int;
 			__le16 capab_info;
 			/* followed by some of SSID, Supported rates,
 			 * FH Params, DS Params, CF Params, IBSS Params */
 			u8 variable[0];
 		} __packed probe_resp;
 		struct {
 			u8 category;
 			union {
 				struct {
 					u8 action_code;
 					u8 dialog_token;
 					u8 status_code;
 					u8 variable[0];
 				} __packed wme_action;
 				struct{
 					u8 action_code;
 					u8 variable[0];
 				} __packed chan_switch;
 				struct{
 					u8 action_code;
 					struct ieee80211_ext_chansw_ie data;
 					u8 variable[0];
 				} __packed ext_chan_switch;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					u8 element_id;
 					u8 length;
 					struct ieee80211_msrment_ie msr_elem;
 				} __packed measurement;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					__le16 capab;
 					__le16 timeout;
 					__le16 start_seq_num;
 				} __packed addba_req;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					__le16 status;
 					__le16 capab;
 					__le16 timeout;
 				} __packed addba_resp;
 				struct{
 					u8 action_code;
 					__le16 params;
 					__le16 reason_code;
 				} __packed delba;
 				struct {
 					u8 action_code;
 					u8 variable[0];
 				} __packed self_prot;
 				struct{
 					u8 action_code;
 					u8 variable[0];
 				} __packed mesh_action;
 				struct {
 					u8 action;
 					u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 				} __packed sa_query;
 				struct {
 					u8 action;
 					u8 smps_control;
 				} __packed ht_smps;
 				struct {
 					u8 action_code;
 					u8 chanwidth;
 				} __packed ht_notify_cw;
 				struct {
 					u8 action_code;
 					u8 dialog_token;
 					__le16 capability;
 					u8 variable[0];
 				} __packed tdls_discover_resp;
 				struct {
 					u8 action_code;
 					u8 operating_mode;
 				} __packed vht_opmode_notif;
 				struct {
 					u8 action_code;
 					u8 membership[WLAN_MEMBERSHIP_LEN];
 					u8 position[WLAN_USER_POSITION_LEN];
 				} __packed vht_group_notif;
 				struct {
 					u8 action_code;
 					u8 dialog_token;
 					u8 tpc_elem_id;
 					u8 tpc_elem_length;
 					struct ieee80211_tpc_report_ie tpc;
 				} __packed tpc_report;
 				struct {
 					u8 action_code;
 					u8 dialog_token;
 					u8 follow_up;
 					u8 tod[6];
 					u8 toa[6];
 					__le16 tod_error;
 					__le16 toa_error;
 					u8 variable[0];
 				} __packed ftm;
 			} u;
 		} __packed action;
 	} u;
 } __packed __aligned(2);

 /* Supported rates membership selectors */
 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY	127
 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY	126

 /* mgmt header + 1 byte category code */
 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)


 /* Management MIC information element (IEEE 802.11w) */
 struct ieee80211_mmie {
 	u8 element_id;
 	u8 length;
 	__le16 key_id;
 	u8 sequence_number[6];
 	u8 mic[8];
 } __packed;

 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
 struct ieee80211_mmie_16 {
 	u8 element_id;
 	u8 length;
 	__le16 key_id;
 	u8 sequence_number[6];
 	u8 mic[16];
 } __packed;

 struct ieee80211_vendor_ie {
 	u8 element_id;
 	u8 len;
 	u8 oui[3];
 	u8 oui_type;
 } __packed;

 struct ieee80211_wmm_ac_param {
 	u8 aci_aifsn; /* AIFSN, ACM, ACI */
 	u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
 	__le16 txop_limit;
 } __packed;

 struct ieee80211_wmm_param_ie {
 	u8 element_id; /* Element ID: 221 (0xdd); */
 	u8 len; /* Length: 24 */
 	/* required fields for WMM version 1 */
 	u8 oui[3]; /* 00:50:f2 */
 	u8 oui_type; /* 2 */
 	u8 oui_subtype; /* 1 */
 	u8 version; /* 1 for WMM version 1.0 */
 	u8 qos_info; /* AP/STA specific QoS info */
 	u8 reserved; /* 0 */
 	/* AC_BE, AC_BK, AC_VI, AC_VO */
 	struct ieee80211_wmm_ac_param ac[4];
 } __packed;

 /* Control frames */
 struct ieee80211_rts {
 	__le16 frame_control;
 	__le16 duration;
 	u8 ra[ETH_ALEN];
 	u8 ta[ETH_ALEN];
 } __packed __aligned(2);

 struct ieee80211_cts {
 	__le16 frame_control;
 	__le16 duration;
 	u8 ra[ETH_ALEN];
 } __packed __aligned(2);

 struct ieee80211_pspoll {
 	__le16 frame_control;
 	__le16 aid;
 	u8 bssid[ETH_ALEN];
 	u8 ta[ETH_ALEN];
 } __packed __aligned(2);

 /* TDLS */

 /* Channel switch timing */
 struct ieee80211_ch_switch_timing {
 	__le16 switch_time;
 	__le16 switch_timeout;
 } __packed;

 /* Link-id information element */
 struct ieee80211_tdls_lnkie {
 	u8 ie_type; /* Link Identifier IE */
 	u8 ie_len;
 	u8 bssid[ETH_ALEN];
 	u8 init_sta[ETH_ALEN];
 	u8 resp_sta[ETH_ALEN];
 } __packed;

 struct ieee80211_tdls_data {
 	u8 da[ETH_ALEN];
 	u8 sa[ETH_ALEN];
 	__be16 ether_type;
 	u8 payload_type;
 	u8 category;
 	u8 action_code;
 	union {
 		struct {
 			u8 dialog_token;
 			__le16 capability;
 			u8 variable[0];
 		} __packed setup_req;
 		struct {
 			__le16 status_code;
 			u8 dialog_token;
 			__le16 capability;
 			u8 variable[0];
 		} __packed setup_resp;
 		struct {
 			__le16 status_code;
 			u8 dialog_token;
 			u8 variable[0];
 		} __packed setup_cfm;
 		struct {
 			__le16 reason_code;
 			u8 variable[0];
 		} __packed teardown;
 		struct {
 			u8 dialog_token;
 			u8 variable[0];
 		} __packed discover_req;
 		struct {
 			u8 target_channel;
 			u8 oper_class;
 			u8 variable[0];
 		} __packed chan_switch_req;
 		struct {
 			__le16 status_code;
 			u8 variable[0];
 		} __packed chan_switch_resp;
 	} u;
 } __packed;

 /*
  * Peer-to-Peer IE attribute related definitions.
  */
 /**
  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
  */
 enum ieee80211_p2p_attr_id {
 	IEEE80211_P2P_ATTR_STATUS = 0,
 	IEEE80211_P2P_ATTR_MINOR_REASON,
 	IEEE80211_P2P_ATTR_CAPABILITY,
 	IEEE80211_P2P_ATTR_DEVICE_ID,
 	IEEE80211_P2P_ATTR_GO_INTENT,
 	IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
 	IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
 	IEEE80211_P2P_ATTR_GROUP_BSSID,
 	IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
 	IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
 	IEEE80211_P2P_ATTR_MANAGABILITY,
 	IEEE80211_P2P_ATTR_CHANNEL_LIST,
 	IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
 	IEEE80211_P2P_ATTR_DEVICE_INFO,
 	IEEE80211_P2P_ATTR_GROUP_INFO,
 	IEEE80211_P2P_ATTR_GROUP_ID,
 	IEEE80211_P2P_ATTR_INTERFACE,
 	IEEE80211_P2P_ATTR_OPER_CHANNEL,
 	IEEE80211_P2P_ATTR_INVITE_FLAGS,
 	/* 19 - 220: Reserved */
 	IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,

 	IEEE80211_P2P_ATTR_MAX
 };

 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
 /* Typical max value used here */
 #define IEEE80211_P2P_NOA_DESC_MAX	4

 struct ieee80211_p2p_noa_desc {
 	u8 count;
 	__le32 duration;
 	__le32 interval;
 	__le32 start_time;
 } __packed;

 struct ieee80211_p2p_noa_attr {
 	u8 index;
 	u8 oppps_ctwindow;
 	struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
 } __packed;

 #define IEEE80211_P2P_OPPPS_ENABLE_BIT		BIT(7)
 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK	0x7F

 /**
  * struct ieee80211_bar - HT Block Ack Request
  *
  * This structure refers to "HT BlockAckReq" as
  * described in 802.11n draft section 7.2.1.7.1
  */
 struct ieee80211_bar {
 	__le16 frame_control;
 	__le16 duration;
 	__u8 ra[ETH_ALEN];
 	__u8 ta[ETH_ALEN];
 	__le16 control;
 	__le16 start_seq_num;
 } __packed;

 /* 802.11 BAR control masks */
 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL	0x0000
 #define IEEE80211_BAR_CTRL_MULTI_TID		0x0002
 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA	0x0004
 #define IEEE80211_BAR_CTRL_TID_INFO_MASK	0xf000
 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT	12

 #define IEEE80211_HT_MCS_MASK_LEN		10

 /**
  * struct ieee80211_mcs_info - MCS information
  * @rx_mask: RX mask
  * @rx_highest: highest supported RX rate. If set represents
  *	the highest supported RX data rate in units of 1 Mbps.
  *	If this field is 0 this value should not be used to
  *	consider the highest RX data rate supported.
  * @tx_params: TX parameters
  */
 struct ieee80211_mcs_info {
 	u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
 	__le16 rx_highest;
 	u8 tx_params;
 	u8 reserved[3];
 } __packed;

 /* 802.11n HT capability MSC set */
 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK	0x3ff
 #define IEEE80211_HT_MCS_TX_DEFINED		0x01
 #define IEEE80211_HT_MCS_TX_RX_DIFF		0x02
 /* value 0 == 1 stream etc */
 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK	0x0C
 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT	2
 #define		IEEE80211_HT_MCS_TX_MAX_STREAMS	4
 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION	0x10

 /*
  * 802.11n D5.0 20.3.5 / 20.6 says:
  * - indices 0 to 7 and 32 are single spatial stream
  * - 8 to 31 are multiple spatial streams using equal modulation
  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
  * - remainder are multiple spatial streams using unequal modulation
  */
 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
 	(IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)

 /**
  * struct ieee80211_ht_cap - HT capabilities
  *
  * This structure is the "HT capabilities element" as
  * described in 802.11n D5.0 7.3.2.57
  */
 struct ieee80211_ht_cap {
 	__le16 cap_info;
 	u8 ampdu_params_info;

 	/* 16 bytes MCS information */
 	struct ieee80211_mcs_info mcs;

 	__le16 extended_ht_cap_info;
 	__le32 tx_BF_cap_info;
 	u8 antenna_selection_info;
 } __packed;

 /* 802.11n HT capabilities masks (for cap_info) */
 #define IEEE80211_HT_CAP_LDPC_CODING		0x0001
 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40	0x0002
 #define IEEE80211_HT_CAP_SM_PS			0x000C
 #define		IEEE80211_HT_CAP_SM_PS_SHIFT	2
 #define IEEE80211_HT_CAP_GRN_FLD		0x0010
 #define IEEE80211_HT_CAP_SGI_20			0x0020
 #define IEEE80211_HT_CAP_SGI_40			0x0040
 #define IEEE80211_HT_CAP_TX_STBC		0x0080
 #define IEEE80211_HT_CAP_RX_STBC		0x0300
 #define		IEEE80211_HT_CAP_RX_STBC_SHIFT	8
 #define IEEE80211_HT_CAP_DELAY_BA		0x0400
 #define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
 #define IEEE80211_HT_CAP_DSSSCCK40		0x1000
 #define IEEE80211_HT_CAP_RESERVED		0x2000
 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT	0x4000
 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT		0x8000

 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
 #define IEEE80211_HT_EXT_CAP_PCO		0x0001
 #define IEEE80211_HT_EXT_CAP_PCO_TIME		0x0006
 #define		IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT	1
 #define IEEE80211_HT_EXT_CAP_MCS_FB		0x0300
 #define		IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT	8
 #define IEEE80211_HT_EXT_CAP_HTC_SUP		0x0400
 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER	0x0800

 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
 #define IEEE80211_HT_AMPDU_PARM_FACTOR		0x03
 #define IEEE80211_HT_AMPDU_PARM_DENSITY		0x1C
 #define		IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT	2

 /*
  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
  */
 enum ieee80211_max_ampdu_length_exp {
 	IEEE80211_HT_MAX_AMPDU_8K = 0,
 	IEEE80211_HT_MAX_AMPDU_16K = 1,
 	IEEE80211_HT_MAX_AMPDU_32K = 2,
 	IEEE80211_HT_MAX_AMPDU_64K = 3
 };

 /*
  * Maximum length of AMPDU that the STA can receive in VHT.
  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
  */
 enum ieee80211_vht_max_ampdu_length_exp {
 	IEEE80211_VHT_MAX_AMPDU_8K = 0,
 	IEEE80211_VHT_MAX_AMPDU_16K = 1,
 	IEEE80211_VHT_MAX_AMPDU_32K = 2,
 	IEEE80211_VHT_MAX_AMPDU_64K = 3,
 	IEEE80211_VHT_MAX_AMPDU_128K = 4,
 	IEEE80211_VHT_MAX_AMPDU_256K = 5,
 	IEEE80211_VHT_MAX_AMPDU_512K = 6,
 	IEEE80211_VHT_MAX_AMPDU_1024K = 7
 };

 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13

 /* Minimum MPDU start spacing */
 enum ieee80211_min_mpdu_spacing {
 	IEEE80211_HT_MPDU_DENSITY_NONE = 0,	/* No restriction */
 	IEEE80211_HT_MPDU_DENSITY_0_25 = 1,	/* 1/4 usec */
 	IEEE80211_HT_MPDU_DENSITY_0_5 = 2,	/* 1/2 usec */
 	IEEE80211_HT_MPDU_DENSITY_1 = 3,	/* 1 usec */
 	IEEE80211_HT_MPDU_DENSITY_2 = 4,	/* 2 usec */
 	IEEE80211_HT_MPDU_DENSITY_4 = 5,	/* 4 usec */
 	IEEE80211_HT_MPDU_DENSITY_8 = 6,	/* 8 usec */
 	IEEE80211_HT_MPDU_DENSITY_16 = 7	/* 16 usec */
 };

 /**
  * struct ieee80211_ht_operation - HT operation IE
  *
  * This structure is the "HT operation element" as
  * described in 802.11n-2009 7.3.2.57
  */
 struct ieee80211_ht_operation {
 	u8 primary_chan;
 	u8 ht_param;
 	__le16 operation_mode;
 	__le16 stbc_param;
 	u8 basic_set[16];
 } __packed;

 /* for ht_param */
 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET		0x03
 #define		IEEE80211_HT_PARAM_CHA_SEC_NONE		0x00
 #define		IEEE80211_HT_PARAM_CHA_SEC_ABOVE	0x01
 #define		IEEE80211_HT_PARAM_CHA_SEC_BELOW	0x03
 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY		0x04
 #define IEEE80211_HT_PARAM_RIFS_MODE			0x08

 /* for operation_mode */
 #define IEEE80211_HT_OP_MODE_PROTECTION			0x0003
 #define		IEEE80211_HT_OP_MODE_PROTECTION_NONE		0
 #define		IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER	1
 #define		IEEE80211_HT_OP_MODE_PROTECTION_20MHZ		2
 #define		IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED	3
 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT		0x0004
 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT		0x0010

 /* for stbc_param */
 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON		0x0040
 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT		0x0080
 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON		0x0100
 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT	0x0200
 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE		0x0400
 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE		0x0800


 /* block-ack parameters */
 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800

 /*
  * A-PMDU buffer sizes
  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
  */
 #define IEEE80211_MIN_AMPDU_BUF 0x8
 #define IEEE80211_MAX_AMPDU_BUF 0x40


 /* Spatial Multiplexing Power Save Modes (for capability) */
 #define WLAN_HT_CAP_SM_PS_STATIC	0
 #define WLAN_HT_CAP_SM_PS_DYNAMIC	1
 #define WLAN_HT_CAP_SM_PS_INVALID	2
 #define WLAN_HT_CAP_SM_PS_DISABLED	3

 /* for SM power control field lower two bits */
 #define WLAN_HT_SMPS_CONTROL_DISABLED	0
 #define WLAN_HT_SMPS_CONTROL_STATIC	1
 #define WLAN_HT_SMPS_CONTROL_DYNAMIC	3

 /**
  * struct ieee80211_vht_mcs_info - VHT MCS information
  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
  * @rx_highest: Indicates highest long GI VHT PPDU data rate
  *	STA can receive. Rate expressed in units of 1 Mbps.
  *	If this field is 0 this value should not be used to
  *	consider the highest RX data rate supported.
  *	The top 3 bits of this field are reserved.
  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
  * @tx_highest: Indicates highest long GI VHT PPDU data rate
  *	STA can transmit. Rate expressed in units of 1 Mbps.
  *	If this field is 0 this value should not be used to
  *	consider the highest TX data rate supported.
  *	The top 3 bits of this field are reserved.
  */
 struct ieee80211_vht_mcs_info {
 	__le16 rx_mcs_map;
 	__le16 rx_highest;
 	__le16 tx_mcs_map;
 	__le16 tx_highest;
 } __packed;

 /**
  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
  *	number of streams
  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
  *
  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
  * both split into 8 subfields by number of streams. These values indicate
  * which MCSes are supported for the number of streams the value appears
  * for.
  */
 enum ieee80211_vht_mcs_support {
 	IEEE80211_VHT_MCS_SUPPORT_0_7	= 0,
 	IEEE80211_VHT_MCS_SUPPORT_0_8	= 1,
 	IEEE80211_VHT_MCS_SUPPORT_0_9	= 2,
 	IEEE80211_VHT_MCS_NOT_SUPPORTED	= 3,
 };

 /**
  * struct ieee80211_vht_cap - VHT capabilities
  *
  * This structure is the "VHT capabilities element" as
  * described in 802.11ac D3.0 8.4.2.160
  * @vht_cap_info: VHT capability info
  * @supp_mcs: VHT MCS supported rates
  */
 struct ieee80211_vht_cap {
 	__le32 vht_cap_info;
 	struct ieee80211_vht_mcs_info supp_mcs;
 } __packed;

 /**
  * enum ieee80211_vht_chanwidth - VHT channel width
  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
  *	determine the channel width (20 or 40 MHz)
  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
  */
 enum ieee80211_vht_chanwidth {
 	IEEE80211_VHT_CHANWIDTH_USE_HT		= 0,
 	IEEE80211_VHT_CHANWIDTH_80MHZ		= 1,
 	IEEE80211_VHT_CHANWIDTH_160MHZ		= 2,
 	IEEE80211_VHT_CHANWIDTH_80P80MHZ	= 3,
 };

 /**
  * struct ieee80211_vht_operation - VHT operation IE
  *
  * This structure is the "VHT operation element" as
  * described in 802.11ac D3.0 8.4.2.161
  * @chan_width: Operating channel width
  * @center_freq_seg1_idx: center freq segment 1 index
  * @center_freq_seg2_idx: center freq segment 2 index
  * @basic_mcs_set: VHT Basic MCS rate set
  */
 struct ieee80211_vht_operation {
 	u8 chan_width;
 	u8 center_freq_seg1_idx;
 	u8 center_freq_seg2_idx;
 	__le16 basic_mcs_set;
 } __packed;


 /* 802.11ac VHT Capabilities */
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895			0x00000000
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991			0x00000001
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454			0x00000002
 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK				0x00000003
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ		0x00000004
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ	0x00000008
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK			0x0000000C
 #define IEEE80211_VHT_CAP_RXLDPC				0x00000010
 #define IEEE80211_VHT_CAP_SHORT_GI_80				0x00000020
 #define IEEE80211_VHT_CAP_SHORT_GI_160				0x00000040
 #define IEEE80211_VHT_CAP_TXSTBC				0x00000080
 #define IEEE80211_VHT_CAP_RXSTBC_1				0x00000100
 #define IEEE80211_VHT_CAP_RXSTBC_2				0x00000200
 #define IEEE80211_VHT_CAP_RXSTBC_3				0x00000300
 #define IEEE80211_VHT_CAP_RXSTBC_4				0x00000400
 #define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK			\
 		(7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT		16
 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK		\
 		(7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000
 #define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000
 #define IEEE80211_VHT_CAP_HTC_VHT				0x00400000
 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT	23
 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK	\
 		(7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB	0x08000000
 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB	0x0c000000
 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN			0x10000000
 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN			0x20000000

 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
 #define WLAN_AUTH_SHARED_KEY 1
 #define WLAN_AUTH_FT 2
 #define WLAN_AUTH_SAE 3
 #define WLAN_AUTH_FILS_SK 4
 #define WLAN_AUTH_FILS_SK_PFS 5
 #define WLAN_AUTH_FILS_PK 6
 #define WLAN_AUTH_LEAP 128

 #define WLAN_AUTH_CHALLENGE_LEN 128

 #define WLAN_CAPABILITY_ESS		(1<<0)
 #define WLAN_CAPABILITY_IBSS		(1<<1)

 /*
  * A mesh STA sets the ESS and IBSS capability bits to zero.
  * however, this holds true for p2p probe responses (in the p2p_find
  * phase) as well.
  */
 #define WLAN_CAPABILITY_IS_STA_BSS(cap)	\
 	(!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))

 #define WLAN_CAPABILITY_CF_POLLABLE	(1<<2)
 #define WLAN_CAPABILITY_CF_POLL_REQUEST	(1<<3)
 #define WLAN_CAPABILITY_PRIVACY		(1<<4)
 #define WLAN_CAPABILITY_SHORT_PREAMBLE	(1<<5)
 #define WLAN_CAPABILITY_PBCC		(1<<6)
 #define WLAN_CAPABILITY_CHANNEL_AGILITY	(1<<7)

 /* 802.11h */
 #define WLAN_CAPABILITY_SPECTRUM_MGMT	(1<<8)
 #define WLAN_CAPABILITY_QOS		(1<<9)
 #define WLAN_CAPABILITY_SHORT_SLOT_TIME	(1<<10)
 #define WLAN_CAPABILITY_APSD		(1<<11)
 #define WLAN_CAPABILITY_RADIO_MEASURE	(1<<12)
 #define WLAN_CAPABILITY_DSSS_OFDM	(1<<13)
 #define WLAN_CAPABILITY_DEL_BACK	(1<<14)
 #define WLAN_CAPABILITY_IMM_BACK	(1<<15)

 /* DMG (60gHz) 802.11ad */
 /* type - bits 0..1 */
 #define WLAN_CAPABILITY_DMG_TYPE_MASK		(3<<0)
 #define WLAN_CAPABILITY_DMG_TYPE_IBSS		(1<<0) /* Tx by: STA */
 #define WLAN_CAPABILITY_DMG_TYPE_PBSS		(2<<0) /* Tx by: PCP */
 #define WLAN_CAPABILITY_DMG_TYPE_AP		(3<<0) /* Tx by: AP */

 #define WLAN_CAPABILITY_DMG_CBAP_ONLY		(1<<2)
 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE		(1<<3)
 #define WLAN_CAPABILITY_DMG_PRIVACY		(1<<4)
 #define WLAN_CAPABILITY_DMG_ECPAC		(1<<5)

 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT	(1<<8)
 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE	(1<<12)

 /* measurement */
 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE	(1<<0)
 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE	(1<<1)
 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED	(1<<2)

 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC	0
 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA	1
 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI	2

 /* 802.11g ERP information element */
 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
 #define WLAN_ERP_USE_PROTECTION (1<<1)
 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)

 /* WLAN_ERP_BARKER_PREAMBLE values */
 enum {
 	WLAN_ERP_PREAMBLE_SHORT = 0,
 	WLAN_ERP_PREAMBLE_LONG = 1,
 };

 /* Band ID, 802.11ad #8.4.1.45 */
 enum {
 	IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
 	IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
 	IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
 	IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
 	IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
 	IEEE80211_BANDID_60G   = 5, /* 60 GHz */
 };

 /* Status codes */
 enum ieee80211_statuscode {
 	WLAN_STATUS_SUCCESS = 0,
 	WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
 	WLAN_STATUS_CAPS_UNSUPPORTED = 10,
 	WLAN_STATUS_REASSOC_NO_ASSOC = 11,
 	WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
 	WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
 	WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
 	WLAN_STATUS_CHALLENGE_FAIL = 15,
 	WLAN_STATUS_AUTH_TIMEOUT = 16,
 	WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
 	WLAN_STATUS_ASSOC_DENIED_RATES = 18,
 	/* 802.11b */
 	WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
 	WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
 	WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
 	/* 802.11h */
 	WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
 	WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
 	WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
 	/* 802.11g */
 	WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
 	WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
 	/* 802.11w */
 	WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
 	WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
 	/* 802.11i */
 	WLAN_STATUS_INVALID_IE = 40,
 	WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
 	WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
 	WLAN_STATUS_INVALID_AKMP = 43,
 	WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
 	WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
 	WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
 	/* 802.11e */
 	WLAN_STATUS_UNSPECIFIED_QOS = 32,
 	WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
 	WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
 	WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
 	WLAN_STATUS_REQUEST_DECLINED = 37,
 	WLAN_STATUS_INVALID_QOS_PARAM = 38,
 	WLAN_STATUS_CHANGE_TSPEC = 39,
 	WLAN_STATUS_WAIT_TS_DELAY = 47,
 	WLAN_STATUS_NO_DIRECT_LINK = 48,
 	WLAN_STATUS_STA_NOT_PRESENT = 49,
 	WLAN_STATUS_STA_NOT_QSTA = 50,
 	/* 802.11s */
 	WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
 	WLAN_STATUS_FCG_NOT_SUPP = 78,
 	WLAN_STATUS_STA_NO_TBTT = 78,
 	/* 802.11ad */
 	WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
 	WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
 	WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
 	WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
 	WLAN_STATUS_PERFORMING_FST_NOW = 87,
 	WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
 	WLAN_STATUS_REJECT_U_PID_SETTING = 89,
 	WLAN_STATUS_REJECT_DSE_BAND = 96,
 	WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
 	WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
 };


 /* Reason codes */
 enum ieee80211_reasoncode {
 	WLAN_REASON_UNSPECIFIED = 1,
 	WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
 	WLAN_REASON_DEAUTH_LEAVING = 3,
 	WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
 	WLAN_REASON_DISASSOC_AP_BUSY = 5,
 	WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
 	WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
 	WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
 	WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
 	/* 802.11h */
 	WLAN_REASON_DISASSOC_BAD_POWER = 10,
 	WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
 	/* 802.11i */
 	WLAN_REASON_INVALID_IE = 13,
 	WLAN_REASON_MIC_FAILURE = 14,
 	WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
 	WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
 	WLAN_REASON_IE_DIFFERENT = 17,
 	WLAN_REASON_INVALID_GROUP_CIPHER = 18,
 	WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
 	WLAN_REASON_INVALID_AKMP = 20,
 	WLAN_REASON_UNSUPP_RSN_VERSION = 21,
 	WLAN_REASON_INVALID_RSN_IE_CAP = 22,
 	WLAN_REASON_IEEE8021X_FAILED = 23,
 	WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
 	/* TDLS (802.11z) */
 	WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
 	WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
 	/* 802.11e */
 	WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
 	WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
 	WLAN_REASON_DISASSOC_LOW_ACK = 34,
 	WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
 	WLAN_REASON_QSTA_LEAVE_QBSS = 36,
 	WLAN_REASON_QSTA_NOT_USE = 37,
 	WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
 	WLAN_REASON_QSTA_TIMEOUT = 39,
 	WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
 	/* 802.11s */
 	WLAN_REASON_MESH_PEER_CANCELED = 52,
 	WLAN_REASON_MESH_MAX_PEERS = 53,
 	WLAN_REASON_MESH_CONFIG = 54,
 	WLAN_REASON_MESH_CLOSE = 55,
 	WLAN_REASON_MESH_MAX_RETRIES = 56,
 	WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
 	WLAN_REASON_MESH_INVALID_GTK = 58,
 	WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
 	WLAN_REASON_MESH_INVALID_SECURITY = 60,
 	WLAN_REASON_MESH_PATH_ERROR = 61,
 	WLAN_REASON_MESH_PATH_NOFORWARD = 62,
 	WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
 	WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
 	WLAN_REASON_MESH_CHAN_REGULATORY = 65,
 	WLAN_REASON_MESH_CHAN = 66,
 };


 /* Information Element IDs */
 enum ieee80211_eid {
 	WLAN_EID_SSID = 0,
 	WLAN_EID_SUPP_RATES = 1,
 	WLAN_EID_FH_PARAMS = 2, /* reserved now */
 	WLAN_EID_DS_PARAMS = 3,
 	WLAN_EID_CF_PARAMS = 4,
 	WLAN_EID_TIM = 5,
 	WLAN_EID_IBSS_PARAMS = 6,
 	WLAN_EID_COUNTRY = 7,
 	/* 8, 9 reserved */
 	WLAN_EID_REQUEST = 10,
 	WLAN_EID_QBSS_LOAD = 11,
 	WLAN_EID_EDCA_PARAM_SET = 12,
 	WLAN_EID_TSPEC = 13,
 	WLAN_EID_TCLAS = 14,
 	WLAN_EID_SCHEDULE = 15,
 	WLAN_EID_CHALLENGE = 16,
 	/* 17-31 reserved for challenge text extension */
 	WLAN_EID_PWR_CONSTRAINT = 32,
 	WLAN_EID_PWR_CAPABILITY = 33,
 	WLAN_EID_TPC_REQUEST = 34,
 	WLAN_EID_TPC_REPORT = 35,
 	WLAN_EID_SUPPORTED_CHANNELS = 36,
 	WLAN_EID_CHANNEL_SWITCH = 37,
 	WLAN_EID_MEASURE_REQUEST = 38,
 	WLAN_EID_MEASURE_REPORT = 39,
 	WLAN_EID_QUIET = 40,
 	WLAN_EID_IBSS_DFS = 41,
 	WLAN_EID_ERP_INFO = 42,
 	WLAN_EID_TS_DELAY = 43,
 	WLAN_EID_TCLAS_PROCESSING = 44,
 	WLAN_EID_HT_CAPABILITY = 45,
 	WLAN_EID_QOS_CAPA = 46,
 	/* 47 reserved for Broadcom */
 	WLAN_EID_RSN = 48,
 	WLAN_EID_802_15_COEX = 49,
 	WLAN_EID_EXT_SUPP_RATES = 50,
 	WLAN_EID_AP_CHAN_REPORT = 51,
 	WLAN_EID_NEIGHBOR_REPORT = 52,
 	WLAN_EID_RCPI = 53,
 	WLAN_EID_MOBILITY_DOMAIN = 54,
 	WLAN_EID_FAST_BSS_TRANSITION = 55,
 	WLAN_EID_TIMEOUT_INTERVAL = 56,
 	WLAN_EID_RIC_DATA = 57,
 	WLAN_EID_DSE_REGISTERED_LOCATION = 58,
 	WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
 	WLAN_EID_EXT_CHANSWITCH_ANN = 60,
 	WLAN_EID_HT_OPERATION = 61,
 	WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
 	WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
 	WLAN_EID_ANTENNA_INFO = 64,
 	WLAN_EID_RSNI = 65,
 	WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
 	WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
 	WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
 	WLAN_EID_TIME_ADVERTISEMENT = 69,
 	WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
 	WLAN_EID_MULTIPLE_BSSID = 71,
 	WLAN_EID_BSS_COEX_2040 = 72,
 	WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
 	WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
 	WLAN_EID_RIC_DESCRIPTOR = 75,
 	WLAN_EID_MMIE = 76,
 	WLAN_EID_ASSOC_COMEBACK_TIME = 77,
 	WLAN_EID_EVENT_REQUEST = 78,
 	WLAN_EID_EVENT_REPORT = 79,
 	WLAN_EID_DIAGNOSTIC_REQUEST = 80,
 	WLAN_EID_DIAGNOSTIC_REPORT = 81,
 	WLAN_EID_LOCATION_PARAMS = 82,
 	WLAN_EID_NON_TX_BSSID_CAP =  83,
 	WLAN_EID_SSID_LIST = 84,
 	WLAN_EID_MULTI_BSSID_IDX = 85,
 	WLAN_EID_FMS_DESCRIPTOR = 86,
 	WLAN_EID_FMS_REQUEST = 87,
 	WLAN_EID_FMS_RESPONSE = 88,
 	WLAN_EID_QOS_TRAFFIC_CAPA = 89,
 	WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
 	WLAN_EID_TSF_REQUEST = 91,
 	WLAN_EID_TSF_RESPOSNE = 92,
 	WLAN_EID_WNM_SLEEP_MODE = 93,
 	WLAN_EID_TIM_BCAST_REQ = 94,
 	WLAN_EID_TIM_BCAST_RESP = 95,
 	WLAN_EID_COLL_IF_REPORT = 96,
 	WLAN_EID_CHANNEL_USAGE = 97,
 	WLAN_EID_TIME_ZONE = 98,
 	WLAN_EID_DMS_REQUEST = 99,
 	WLAN_EID_DMS_RESPONSE = 100,
 	WLAN_EID_LINK_ID = 101,
 	WLAN_EID_WAKEUP_SCHEDUL = 102,
 	/* 103 reserved */
 	WLAN_EID_CHAN_SWITCH_TIMING = 104,
 	WLAN_EID_PTI_CONTROL = 105,
 	WLAN_EID_PU_BUFFER_STATUS = 106,
 	WLAN_EID_INTERWORKING = 107,
 	WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
 	WLAN_EID_EXPEDITED_BW_REQ = 109,
 	WLAN_EID_QOS_MAP_SET = 110,
 	WLAN_EID_ROAMING_CONSORTIUM = 111,
 	WLAN_EID_EMERGENCY_ALERT = 112,
 	WLAN_EID_MESH_CONFIG = 113,
 	WLAN_EID_MESH_ID = 114,
 	WLAN_EID_LINK_METRIC_REPORT = 115,
 	WLAN_EID_CONGESTION_NOTIFICATION = 116,
 	WLAN_EID_PEER_MGMT = 117,
 	WLAN_EID_CHAN_SWITCH_PARAM = 118,
 	WLAN_EID_MESH_AWAKE_WINDOW = 119,
 	WLAN_EID_BEACON_TIMING = 120,
 	WLAN_EID_MCCAOP_SETUP_REQ = 121,
 	WLAN_EID_MCCAOP_SETUP_RESP = 122,
 	WLAN_EID_MCCAOP_ADVERT = 123,
 	WLAN_EID_MCCAOP_TEARDOWN = 124,
 	WLAN_EID_GANN = 125,
 	WLAN_EID_RANN = 126,
 	WLAN_EID_EXT_CAPABILITY = 127,
 	/* 128, 129 reserved for Agere */
 	WLAN_EID_PREQ = 130,
 	WLAN_EID_PREP = 131,
 	WLAN_EID_PERR = 132,
 	/* 133-136 reserved for Cisco */
 	WLAN_EID_PXU = 137,
 	WLAN_EID_PXUC = 138,
 	WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
 	WLAN_EID_MIC = 140,
 	WLAN_EID_DESTINATION_URI = 141,
 	WLAN_EID_UAPSD_COEX = 142,
 	WLAN_EID_WAKEUP_SCHEDULE = 143,
 	WLAN_EID_EXT_SCHEDULE = 144,
 	WLAN_EID_STA_AVAILABILITY = 145,
 	WLAN_EID_DMG_TSPEC = 146,
 	WLAN_EID_DMG_AT = 147,
 	WLAN_EID_DMG_CAP = 148,
 	/* 149 reserved for Cisco */
 	WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
 	WLAN_EID_DMG_OPERATION = 151,
 	WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
 	WLAN_EID_DMG_BEAM_REFINEMENT = 153,
 	WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
 	/* 155-156 reserved for Cisco */
 	WLAN_EID_AWAKE_WINDOW = 157,
 	WLAN_EID_MULTI_BAND = 158,
 	WLAN_EID_ADDBA_EXT = 159,
 	WLAN_EID_NEXT_PCP_LIST = 160,
 	WLAN_EID_PCP_HANDOVER = 161,
 	WLAN_EID_DMG_LINK_MARGIN = 162,
 	WLAN_EID_SWITCHING_STREAM = 163,
 	WLAN_EID_SESSION_TRANSITION = 164,
 	WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
 	WLAN_EID_CLUSTER_REPORT = 166,
 	WLAN_EID_RELAY_CAP = 167,
 	WLAN_EID_RELAY_XFER_PARAM_SET = 168,
 	WLAN_EID_BEAM_LINK_MAINT = 169,
 	WLAN_EID_MULTIPLE_MAC_ADDR = 170,
 	WLAN_EID_U_PID = 171,
 	WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
 	/* 173 reserved for Symbol */
 	WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
 	WLAN_EID_QUIET_PERIOD_REQ = 175,
 	/* 176 reserved for Symbol */
 	WLAN_EID_QUIET_PERIOD_RESP = 177,
 	/* 178-179 reserved for Symbol */
 	/* 180 reserved for ISO/IEC 20011 */
 	WLAN_EID_EPAC_POLICY = 182,
 	WLAN_EID_CLISTER_TIME_OFF = 183,
 	WLAN_EID_INTER_AC_PRIO = 184,
 	WLAN_EID_SCS_DESCRIPTOR = 185,
 	WLAN_EID_QLOAD_REPORT = 186,
 	WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
 	WLAN_EID_HL_STREAM_ID = 188,
 	WLAN_EID_GCR_GROUP_ADDR = 189,
 	WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
 	WLAN_EID_VHT_CAPABILITY = 191,
 	WLAN_EID_VHT_OPERATION = 192,
 	WLAN_EID_EXTENDED_BSS_LOAD = 193,
 	WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
 	WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
 	WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
 	WLAN_EID_AID = 197,
 	WLAN_EID_QUIET_CHANNEL = 198,
 	WLAN_EID_OPMODE_NOTIF = 199,

 	WLAN_EID_VENDOR_SPECIFIC = 221,
 	WLAN_EID_QOS_PARAMETER = 222,
 	WLAN_EID_CAG_NUMBER = 237,
 	WLAN_EID_AP_CSN = 239,
 	WLAN_EID_FILS_INDICATION = 240,
 	WLAN_EID_DILS = 241,
 	WLAN_EID_FRAGMENT = 242,
 	WLAN_EID_EXTENSION = 255
 };

 /* Element ID Extensions for Element ID 255 */
 enum ieee80211_eid_ext {
 	WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
 	WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
 	WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
 	WLAN_EID_EXT_FILS_SESSION = 4,
 	WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
 	WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
 	WLAN_EID_EXT_KEY_DELIVERY = 7,
 	WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
 	WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
 	WLAN_EID_EXT_FILS_NONCE = 13,
 };

 /* Action category code */
 enum ieee80211_category {
 	WLAN_CATEGORY_SPECTRUM_MGMT = 0,
 	WLAN_CATEGORY_QOS = 1,
 	WLAN_CATEGORY_DLS = 2,
 	WLAN_CATEGORY_BACK = 3,
 	WLAN_CATEGORY_PUBLIC = 4,
 	WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
 	WLAN_CATEGORY_HT = 7,
 	WLAN_CATEGORY_SA_QUERY = 8,
 	WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
 	WLAN_CATEGORY_WNM = 10,
 	WLAN_CATEGORY_WNM_UNPROTECTED = 11,
 	WLAN_CATEGORY_TDLS = 12,
 	WLAN_CATEGORY_MESH_ACTION = 13,
 	WLAN_CATEGORY_MULTIHOP_ACTION = 14,
 	WLAN_CATEGORY_SELF_PROTECTED = 15,
 	WLAN_CATEGORY_DMG = 16,
 	WLAN_CATEGORY_WMM = 17,
 	WLAN_CATEGORY_FST = 18,
 	WLAN_CATEGORY_UNPROT_DMG = 20,
 	WLAN_CATEGORY_VHT = 21,
 	WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
 	WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
 };

 /* SPECTRUM_MGMT action code */
 enum ieee80211_spectrum_mgmt_actioncode {
 	WLAN_ACTION_SPCT_MSR_REQ = 0,
 	WLAN_ACTION_SPCT_MSR_RPRT = 1,
 	WLAN_ACTION_SPCT_TPC_REQ = 2,
 	WLAN_ACTION_SPCT_TPC_RPRT = 3,
 	WLAN_ACTION_SPCT_CHL_SWITCH = 4,
 };

 /* HT action codes */
 enum ieee80211_ht_actioncode {
 	WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
 	WLAN_HT_ACTION_SMPS = 1,
 	WLAN_HT_ACTION_PSMP = 2,
 	WLAN_HT_ACTION_PCO_PHASE = 3,
 	WLAN_HT_ACTION_CSI = 4,
 	WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
 	WLAN_HT_ACTION_COMPRESSED_BF = 6,
 	WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
 };

 /* VHT action codes */
 enum ieee80211_vht_actioncode {
 	WLAN_VHT_ACTION_COMPRESSED_BF = 0,
 	WLAN_VHT_ACTION_GROUPID_MGMT = 1,
 	WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
 };

 /* Self Protected Action codes */
 enum ieee80211_self_protected_actioncode {
 	WLAN_SP_RESERVED = 0,
 	WLAN_SP_MESH_PEERING_OPEN = 1,
 	WLAN_SP_MESH_PEERING_CONFIRM = 2,
 	WLAN_SP_MESH_PEERING_CLOSE = 3,
 	WLAN_SP_MGK_INFORM = 4,
 	WLAN_SP_MGK_ACK = 5,
 };

 /* Mesh action codes */
 enum ieee80211_mesh_actioncode {
 	WLAN_MESH_ACTION_LINK_METRIC_REPORT,
 	WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
 	WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
 	WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
 	WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
 	WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
 	WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
 	WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
 	WLAN_MESH_ACTION_MCCA_TEARDOWN,
 	WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
 	WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
 };

 /* Security key length */
 enum ieee80211_key_len {
 	WLAN_KEY_LEN_WEP40 = 5,
 	WLAN_KEY_LEN_WEP104 = 13,
 	WLAN_KEY_LEN_CCMP = 16,
 	WLAN_KEY_LEN_CCMP_256 = 32,
 	WLAN_KEY_LEN_TKIP = 32,
 	WLAN_KEY_LEN_AES_CMAC = 16,
 	WLAN_KEY_LEN_SMS4 = 32,
 	WLAN_KEY_LEN_GCMP = 16,
 	WLAN_KEY_LEN_GCMP_256 = 32,
 	WLAN_KEY_LEN_BIP_CMAC_256 = 32,
 	WLAN_KEY_LEN_BIP_GMAC_128 = 16,
 	WLAN_KEY_LEN_BIP_GMAC_256 = 32,
 };

 #define IEEE80211_WEP_IV_LEN		4
 #define IEEE80211_WEP_ICV_LEN		4
 #define IEEE80211_CCMP_HDR_LEN		8
 #define IEEE80211_CCMP_MIC_LEN		8
 #define IEEE80211_CCMP_PN_LEN		6
 #define IEEE80211_CCMP_256_HDR_LEN	8
 #define IEEE80211_CCMP_256_MIC_LEN	16
 #define IEEE80211_CCMP_256_PN_LEN	6
 #define IEEE80211_TKIP_IV_LEN		8
 #define IEEE80211_TKIP_ICV_LEN		4
 #define IEEE80211_CMAC_PN_LEN		6
 #define IEEE80211_GMAC_PN_LEN		6
 #define IEEE80211_GCMP_HDR_LEN		8
 #define IEEE80211_GCMP_MIC_LEN		16
 #define IEEE80211_GCMP_PN_LEN		6

 #define FILS_NONCE_LEN			16
 #define FILS_MAX_KEK_LEN		64

 /* Public action codes */
 enum ieee80211_pub_actioncode {
 	WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
 	WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
 };

 /* TDLS action codes */
 enum ieee80211_tdls_actioncode {
 	WLAN_TDLS_SETUP_REQUEST = 0,
 	WLAN_TDLS_SETUP_RESPONSE = 1,
 	WLAN_TDLS_SETUP_CONFIRM = 2,
 	WLAN_TDLS_TEARDOWN = 3,
 	WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
 	WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
 	WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
 	WLAN_TDLS_PEER_PSM_REQUEST = 7,
 	WLAN_TDLS_PEER_PSM_RESPONSE = 8,
 	WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
 	WLAN_TDLS_DISCOVERY_REQUEST = 10,
 };

 /* Extended Channel Switching capability to be set in the 1st byte of
  * the @WLAN_EID_EXT_CAPABILITY information element
  */
 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING	BIT(2)

 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA		BIT(4)
 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM		BIT(5)
 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH		BIT(6)

 /* Interworking capabilities are set in 7th bit of 4th byte of the
  * @WLAN_EID_EXT_CAPABILITY information element
  */
 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED	BIT(7)

 /*
  * TDLS capabililites to be enabled in the 5th byte of the
  * @WLAN_EID_EXT_CAPABILITY information element
  */
 #define WLAN_EXT_CAPA5_TDLS_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED	BIT(6)
 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED	BIT(7)

 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA8_OPMODE_NOTIF	BIT(6)

 /* Defines the maximal number of MSDUs in an A-MSDU. */
 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB	BIT(7)
 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB	BIT(0)

 /*
  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
  * information element
  */
 #define WLAN_EXT_CAPA9_FTM_INITIATOR	BIT(7)

 /* TDLS specific payload type in the LLC/SNAP header */
 #define WLAN_TDLS_SNAP_RFTYPE	0x2

 /* BSS Coex IE information field bits */
 #define WLAN_BSS_COEX_INFORMATION_REQUEST	BIT(0)

 /**
  * enum - mesh synchronization method identifier
  *
  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
  *	that will be specified in a vendor specific information element
  */
 enum {
 	IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
 	IEEE80211_SYNC_METHOD_VENDOR = 255,
 };

 /**
  * enum - mesh path selection protocol identifier
  *
  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
  *	be specified in a vendor specific information element
  */
 enum {
 	IEEE80211_PATH_PROTOCOL_HWMP = 1,
 	IEEE80211_PATH_PROTOCOL_VENDOR = 255,
 };

 /**
  * enum - mesh path selection metric identifier
  *
  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
  *	specified in a vendor specific information element
  */
 enum {
 	IEEE80211_PATH_METRIC_AIRTIME = 1,
 	IEEE80211_PATH_METRIC_VENDOR = 255,
 };

 /**
  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
  *
  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
  *
  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
  *	this value
  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
  *	the proactive PREQ with proactive PREP subfield set to 0
  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
  *	supports the proactive PREQ with proactive PREP subfield set to 1
  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
  *	the proactive RANN
  */
 enum ieee80211_root_mode_identifier {
 	IEEE80211_ROOTMODE_NO_ROOT = 0,
 	IEEE80211_ROOTMODE_ROOT = 1,
 	IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
 	IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
 	IEEE80211_PROACTIVE_RANN = 4,
 };

 /*
  * IEEE 802.11-2007 7.3.2.9 Country information element
  *
  * Minimum length is 8 octets, ie len must be evenly
  * divisible by 2
  */

 /* Although the spec says 8 I'm seeing 6 in practice */
 #define IEEE80211_COUNTRY_IE_MIN_LEN	6

 /* The Country String field of the element shall be 3 octets in length */
 #define IEEE80211_COUNTRY_STRING_LEN	3

 /*
  * For regulatory extension stuff see IEEE 802.11-2007
  * Annex I (page 1141) and Annex J (page 1147). Also
  * review 7.3.2.9.
  *
  * When dot11RegulatoryClassesRequired is true and the
  * first_channel/reg_extension_id is >= 201 then the IE
  * compromises of the 'ext' struct represented below:
  *
  *  - Regulatory extension ID - when generating IE this just needs
  *    to be monotonically increasing for each triplet passed in
  *    the IE
  *  - Regulatory class - index into set of rules
  *  - Coverage class - index into air propagation time (Table 7-27),
  *    in microseconds, you can compute the air propagation time from
  *    the index by multiplying by 3, so index 10 yields a propagation
  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
  *    yet. A value of 0 inicates air propagation of <= 1 us.
  *
  *  See also Table I.2 for Emission limit sets and table
  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
  *  a reg_class to an emission limit set and behavior limit set.
  */
 #define IEEE80211_COUNTRY_EXTENSION_ID 201

 /*
  *  Channels numbers in the IE must be monotonically increasing
  *  if dot11RegulatoryClassesRequired is not true.
  *
  *  If dot11RegulatoryClassesRequired is true consecutive
  *  subband triplets following a regulatory triplet shall
  *  have monotonically increasing first_channel number fields.
  *
  *  Channel numbers shall not overlap.
  *
  *  Note that max_power is signed.
  */
 struct ieee80211_country_ie_triplet {
 	union {
 		struct {
 			u8 first_channel;
 			u8 num_channels;
 			s8 max_power;
 		} __packed chans;
 		struct {
 			u8 reg_extension_id;
 			u8 reg_class;
 			u8 coverage_class;
 		} __packed ext;
 	};
 } __packed;

 enum ieee80211_timeout_interval_type {
 	WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
 	WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
 	WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
 };

 /**
  * struct ieee80211_timeout_interval_ie - Timeout Interval element
  * @type: type, see &enum ieee80211_timeout_interval_type
  * @value: timeout interval value
  */
 struct ieee80211_timeout_interval_ie {
 	u8 type;
 	__le32 value;
 } __packed;

 /* BACK action code */
 enum ieee80211_back_actioncode {
 	WLAN_ACTION_ADDBA_REQ = 0,
 	WLAN_ACTION_ADDBA_RESP = 1,
 	WLAN_ACTION_DELBA = 2,
 };

 /* BACK (block-ack) parties */
 enum ieee80211_back_parties {
 	WLAN_BACK_RECIPIENT = 0,
 	WLAN_BACK_INITIATOR = 1,
 };

 /* SA Query action */
 enum ieee80211_sa_query_action {
 	WLAN_ACTION_SA_QUERY_REQUEST = 0,
 	WLAN_ACTION_SA_QUERY_RESPONSE = 1,
 };


 #define SUITE(oui, id)	(((oui) << 8) | (id))

 /* cipher suite selectors */
 #define WLAN_CIPHER_SUITE_USE_GROUP	SUITE(0x000FAC, 0)
 #define WLAN_CIPHER_SUITE_WEP40		SUITE(0x000FAC, 1)
 #define WLAN_CIPHER_SUITE_TKIP		SUITE(0x000FAC, 2)
 /* reserved: 				SUITE(0x000FAC, 3) */
 #define WLAN_CIPHER_SUITE_CCMP		SUITE(0x000FAC, 4)
 #define WLAN_CIPHER_SUITE_WEP104	SUITE(0x000FAC, 5)
 #define WLAN_CIPHER_SUITE_AES_CMAC	SUITE(0x000FAC, 6)
 #define WLAN_CIPHER_SUITE_GCMP		SUITE(0x000FAC, 8)
 #define WLAN_CIPHER_SUITE_GCMP_256	SUITE(0x000FAC, 9)
 #define WLAN_CIPHER_SUITE_CCMP_256	SUITE(0x000FAC, 10)
 #define WLAN_CIPHER_SUITE_BIP_GMAC_128	SUITE(0x000FAC, 11)
 #define WLAN_CIPHER_SUITE_BIP_GMAC_256	SUITE(0x000FAC, 12)
 #define WLAN_CIPHER_SUITE_BIP_CMAC_256	SUITE(0x000FAC, 13)

 #define WLAN_CIPHER_SUITE_SMS4		SUITE(0x001472, 1)

 /* AKM suite selectors */
 #define WLAN_AKM_SUITE_8021X		SUITE(0x000FAC, 1)
 #define WLAN_AKM_SUITE_PSK		SUITE(0x000FAC, 2)
 #define WLAN_AKM_SUITE_8021X_SHA256	SUITE(0x000FAC, 5)
 #define WLAN_AKM_SUITE_PSK_SHA256	SUITE(0x000FAC, 6)
 #define WLAN_AKM_SUITE_TDLS		SUITE(0x000FAC, 7)
 #define WLAN_AKM_SUITE_SAE		SUITE(0x000FAC, 8)
 #define WLAN_AKM_SUITE_FT_OVER_SAE	SUITE(0x000FAC, 9)

 #define WLAN_MAX_KEY_LEN		32

 #define WLAN_PMKID_LEN			16

 #define WLAN_OUI_WFA			0x506f9a
 #define WLAN_OUI_TYPE_WFA_P2P		9
 #define WLAN_OUI_MICROSOFT		0x0050f2
 #define WLAN_OUI_TYPE_MICROSOFT_WPA	1
 #define WLAN_OUI_TYPE_MICROSOFT_WMM	2
 #define WLAN_OUI_TYPE_MICROSOFT_WPS	4

 /*
  * WMM/802.11e Tspec Element
  */
 #define IEEE80211_WMM_IE_TSPEC_TID_MASK		0x0F
 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT	1

 enum ieee80211_tspec_status_code {
 	IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
 	IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
 };

 struct ieee80211_tspec_ie {
 	u8 element_id;
 	u8 len;
 	u8 oui[3];
 	u8 oui_type;
 	u8 oui_subtype;
 	u8 version;
 	__le16 tsinfo;
 	u8 tsinfo_resvd;
 	__le16 nominal_msdu;
 	__le16 max_msdu;
 	__le32 min_service_int;
 	__le32 max_service_int;
 	__le32 inactivity_int;
 	__le32 suspension_int;
 	__le32 service_start_time;
 	__le32 min_data_rate;
 	__le32 mean_data_rate;
 	__le32 peak_data_rate;
 	__le32 max_burst_size;
 	__le32 delay_bound;
 	__le32 min_phy_rate;
 	__le16 sba;
 	__le16 medium_time;
 } __packed;

 /**
  * ieee80211_get_qos_ctl - get pointer to qos control bytes
  * @hdr: the frame
  *
  * The qos ctrl bytes come after the frame_control, duration, seq_num
  * and 3 or 4 addresses of length ETH_ALEN.
  * 3 addr: 2 + 2 + 2 + 3*6 = 24
  * 4 addr: 2 + 2 + 2 + 4*6 = 30
  */
 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
 {
 	if (ieee80211_has_a4(hdr->frame_control))
 		return (u8 *)hdr + 30;
 	else
 		return (u8 *)hdr + 24;
 }

 /**
  * ieee80211_get_SA - get pointer to SA
  * @hdr: the frame
  *
  * Given an 802.11 frame, this function returns the offset
  * to the source address (SA). It does not verify that the
  * header is long enough to contain the address, and the
  * header must be long enough to contain the frame control
  * field.
  */
 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
 {
 	if (ieee80211_has_a4(hdr->frame_control))
 		return hdr->addr4;
 	if (ieee80211_has_fromds(hdr->frame_control))
 		return hdr->addr3;
 	return hdr->addr2;
 }

 /**
  * ieee80211_get_DA - get pointer to DA
  * @hdr: the frame
  *
  * Given an 802.11 frame, this function returns the offset
  * to the destination address (DA). It does not verify that
  * the header is long enough to contain the address, and the
  * header must be long enough to contain the frame control
  * field.
  */
 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
 {
 	if (ieee80211_has_tods(hdr->frame_control))
 		return hdr->addr3;
 	else
 		return hdr->addr1;
 }

 /**
  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
  * @hdr: the frame (buffer must include at least the first octet of payload)
  */
 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
 {
 	if (ieee80211_is_disassoc(hdr->frame_control) ||
 	    ieee80211_is_deauth(hdr->frame_control))
 		return true;

 	if (ieee80211_is_action(hdr->frame_control)) {
 		u8 *category;

 		/*
 		 * Action frames, excluding Public Action frames, are Robust
 		 * Management Frames. However, if we are looking at a Protected
 		 * frame, skip the check since the data may be encrypted and
 		 * the frame has already been found to be a Robust Management
 		 * Frame (by the other end).
 		 */
 		if (ieee80211_has_protected(hdr->frame_control))
 			return true;
 		category = ((u8 *) hdr) + 24;
 		return *category != WLAN_CATEGORY_PUBLIC &&
 			*category != WLAN_CATEGORY_HT &&
 			*category != WLAN_CATEGORY_WNM_UNPROTECTED &&
 			*category != WLAN_CATEGORY_SELF_PROTECTED &&
 			*category != WLAN_CATEGORY_UNPROT_DMG &&
 			*category != WLAN_CATEGORY_VHT &&
 			*category != WLAN_CATEGORY_VENDOR_SPECIFIC;
 	}

 	return false;
 }

 /**
  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
  * @skb: the skb containing the frame, length will be checked
  */
 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
 {
 	if (skb->len < IEEE80211_MIN_ACTION_SIZE)
 		return false;
 	return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
 }

 /**
  * ieee80211_is_public_action - check if frame is a public action frame
  * @hdr: the frame
  * @len: length of the frame
  */
 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
 					      size_t len)
 {
 	struct ieee80211_mgmt *mgmt = (void *)hdr;

 	if (len < IEEE80211_MIN_ACTION_SIZE)
 		return false;
 	if (!ieee80211_is_action(hdr->frame_control))
 		return false;
 	return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
 }

 /**
  * _ieee80211_is_group_privacy_action - check if frame is a group addressed
  * privacy action frame
  * @hdr: the frame
  */
 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
 {
 	struct ieee80211_mgmt *mgmt = (void *)hdr;

 	if (!ieee80211_is_action(hdr->frame_control) ||
 	    !is_multicast_ether_addr(hdr->addr1))
 		return false;

 	return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
 	       mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
 }

 /**
  * ieee80211_is_group_privacy_action - check if frame is a group addressed
  * privacy action frame
  * @skb: the skb containing the frame, length will be checked
  */
 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
 {
 	if (skb->len < IEEE80211_MIN_ACTION_SIZE)
 		return false;
 	return _ieee80211_is_group_privacy_action((void *)skb->data);
 }

 /**
  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
  * @tu: the TUs
  */
 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
 {
 	return 1024 * tu;
 }

 /**
  * ieee80211_check_tim - check if AID bit is set in TIM
  * @tim: the TIM IE
  * @tim_len: length of the TIM IE
  * @aid: the AID to look for
  */
 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
 				       u8 tim_len, u16 aid)
 {
 	u8 mask;
 	u8 index, indexn1, indexn2;

 	if (unlikely(!tim || tim_len < sizeof(*tim)))
 		return false;

 	aid &= 0x3fff;
 	index = aid / 8;
 	mask  = 1 << (aid & 7);

 	indexn1 = tim->bitmap_ctrl & 0xfe;
 	indexn2 = tim_len + indexn1 - 4;

 	if (index < indexn1 || index > indexn2)
 		return false;

 	index -= indexn1;

 	return !!(tim->virtual_map[index] & mask);
 }

 /**
  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
  * @skb: the skb containing the frame, length will not be checked
  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
  *
  * This function assumes the frame is a data frame, and that the network header
  * is in the correct place.
  */
 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
 {
 	if (!skb_is_nonlinear(skb) &&
 	    skb->len > (skb_network_offset(skb) + 2)) {
 		/* Point to where the indication of TDLS should start */
 		const u8 *tdls_data = skb_network_header(skb) - 2;

 		if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
 		    tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
 		    tdls_data[3] == WLAN_CATEGORY_TDLS)
 			return tdls_data[4];
 	}

 	return -1;
 }

 /* convert time units */
 #define TU_TO_JIFFIES(x)	(usecs_to_jiffies((x) * 1024))
 #define TU_TO_EXP_TIME(x)	(jiffies + TU_TO_JIFFIES(x))

 /**
  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
  * @skb: the skb containing the frame, length will be checked
  *
  * This function checks if it's either TPC report action frame or Link
  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
  * and 8.5.7.5 accordingly.
  */
 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
 {
 	struct ieee80211_mgmt *mgmt = (void *)skb->data;

 	if (!ieee80211_is_action(mgmt->frame_control))
 		return false;

 	if (skb->len < IEEE80211_MIN_ACTION_SIZE +
 		       sizeof(mgmt->u.action.u.tpc_report))
 		return false;

 	/*
 	 * TPC report - check that:
 	 * category = 0 (Spectrum Management) or 5 (Radio Measurement)
 	 * spectrum management action = 3 (TPC/Link Measurement report)
 	 * TPC report EID = 35
 	 * TPC report element length = 2
 	 *
 	 * The spectrum management's tpc_report struct is used here both for
 	 * parsing tpc_report and radio measurement's link measurement report
 	 * frame, since the relevant part is identical in both frames.
 	 */
 	if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
 	    mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
 		return false;

 	/* both spectrum mgmt and link measurement have same action code */
 	if (mgmt->u.action.u.tpc_report.action_code !=
 	    WLAN_ACTION_SPCT_TPC_RPRT)
 		return false;

 	if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
 	    mgmt->u.action.u.tpc_report.tpc_elem_length !=
 	    sizeof(struct ieee80211_tpc_report_ie))
 		return false;

 	return true;
 }

 #endif /* LINUX_IEEE80211_H */