ieee80211.h 101 KB
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/*
 * 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>
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 * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
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 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
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 * Copyright (c) 2018        Intel Corporation
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 *
 * 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.
 */

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#ifndef LINUX_IEEE80211_H
#define LINUX_IEEE80211_H
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#include <linux/etherdevice.h>
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#include <asm/byteorder.h>
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#include <asm/unaligned.h>
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/*
 * 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)
 */

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#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
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#define IEEE80211_FCTL_CTL_EXT		0x0f00
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#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
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#define IEEE80211_FTYPE_EXT		0x000c
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/* 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 */
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#define IEEE80211_STYPE_CTL_EXT		0x0060
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#define IEEE80211_STYPE_BACK_REQ	0x0080
#define IEEE80211_STYPE_BACK		0x0090
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#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

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

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static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
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{
	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)

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

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   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
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/* 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
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/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
#define IEEE80211_MAX_FRAME_LEN		2352
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/* Maximal size of an A-MSDU that can be transported in a HT BA session */
#define IEEE80211_MAX_MPDU_LEN_HT_BA		4095

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/* 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

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#define IEEE80211_MAX_SSID_LEN		32
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#define IEEE80211_MAX_MESH_ID_LEN	32
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#define IEEE80211_FIRST_TSPEC_TSID	8
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#define IEEE80211_NUM_TIDS		16

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/* number of user priorities 802.11 uses */
#define IEEE80211_NUM_UPS		8
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/* number of ACs */
#define IEEE80211_NUM_ACS		4
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#define IEEE80211_QOS_CTL_LEN		2
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/* 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
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#define IEEE80211_QOS_CTL_ACK_POLICY_MASK	0x0060
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/* A-MSDU 802.11n */
#define IEEE80211_QOS_CTL_A_MSDU_PRESENT	0x0080
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/* Mesh Control 802.11s */
#define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
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/* Mesh Power Save Level */
#define IEEE80211_QOS_CTL_MESH_PS_LEVEL		0x0200
/* Mesh Receiver Service Period Initiated */
#define IEEE80211_QOS_CTL_RSPI			0x0400

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

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#define IEEE80211_HT_CTL_LEN		4

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struct ieee80211_hdr {
	__le16 frame_control;
	__le16 duration_id;
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	u8 addr1[ETH_ALEN];
	u8 addr2[ETH_ALEN];
	u8 addr3[ETH_ALEN];
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	__le16 seq_ctrl;
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	u8 addr4[ETH_ALEN];
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} __packed __aligned(2);
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struct ieee80211_hdr_3addr {
	__le16 frame_control;
	__le16 duration_id;
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	u8 addr1[ETH_ALEN];
	u8 addr2[ETH_ALEN];
	u8 addr3[ETH_ALEN];
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	__le16 seq_ctrl;
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} __packed __aligned(2);
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struct ieee80211_qos_hdr {
	__le16 frame_control;
	__le16 duration_id;
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	u8 addr1[ETH_ALEN];
	u8 addr2[ETH_ALEN];
	u8 addr3[ETH_ALEN];
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	__le16 seq_ctrl;
	__le16 qos_ctrl;
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} __packed __aligned(2);
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/**
 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 * @fc: frame control bytes in little-endian byteorder
 */
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static inline bool ieee80211_has_tods(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_fromds(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_a4(__le16 fc)
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{
	__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
 */
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static inline bool ieee80211_has_morefrags(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_retry(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_pm(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_moredata(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_protected(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_has_order(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_mgmt(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_ctl(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_data(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_data_qos(__le16 fc)
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{
	/*
	 * 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
 */
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static inline bool ieee80211_is_data_present(__le16 fc)
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{
	/*
	 * 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
 */
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static inline bool ieee80211_is_assoc_req(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_assoc_resp(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_reassoc_req(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_reassoc_resp(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_probe_req(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_probe_resp(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_beacon(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_atim(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_disassoc(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_auth(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_deauth(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_action(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_back_req(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_back(__le16 fc)
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{
	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
 */
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static inline bool ieee80211_is_pspoll(__le16 fc)
550 551 552 553 554 555 556 557 558
{
	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
 */
559
static inline bool ieee80211_is_rts(__le16 fc)
560 561 562 563 564 565 566 567 568
{
	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
 */
569
static inline bool ieee80211_is_cts(__le16 fc)
570 571 572 573 574 575 576 577 578
{
	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
 */
579
static inline bool ieee80211_is_ack(__le16 fc)
580 581 582 583 584 585 586 587 588
{
	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
 */
589
static inline bool ieee80211_is_cfend(__le16 fc)
590 591 592 593 594 595 596 597 598
{
	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
 */
599
static inline bool ieee80211_is_cfendack(__le16 fc)
600 601 602 603 604 605
{
	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
	       cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
}

/**
606
 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
607 608
 * @fc: frame control bytes in little-endian byteorder
 */
609
static inline bool ieee80211_is_nullfunc(__le16 fc)
610 611 612 613
{
	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
	       cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
}
614

615 616 617 618
/**
 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 * @fc: frame control bytes in little-endian byteorder
 */
619
static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
620 621 622 623 624
{
	return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
	       cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
}

625 626 627 628 629 630 631 632 633 634 635 636 637 638
/**
 * 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));
}

639 640 641 642
/**
 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 */
643
static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
644 645 646 647
{
	return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
}

648 649 650 651 652 653 654 655 656 657
/**
 * 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);
}

658 659 660
struct ieee80211s_hdr {
	u8 flags;
	u8 ttl;
661
	__le32 seqnum;
662 663
	u8 eaddr1[ETH_ALEN];
	u8 eaddr2[ETH_ALEN];
664
} __packed __aligned(2);
665

666 667 668
/* Mesh flags */
#define MESH_FLAGS_AE_A4 	0x1
#define MESH_FLAGS_AE_A5_A6	0x2
669
#define MESH_FLAGS_AE		0x3
670 671
#define MESH_FLAGS_PS_DEEP	0x4

672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691
/**
 * 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,
};

692 693 694 695 696 697 698 699 700 701
/**
 * struct ieee80211_quiet_ie
 *
 * This structure refers to "Quiet information element"
 */
struct ieee80211_quiet_ie {
	u8 count;
	u8 period;
	__le16 duration;
	__le16 offset;
702
} __packed;
703 704 705 706 707 708 709 710 711 712 713

/**
 * 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];
714
} __packed;
715 716 717 718 719 720 721 722 723 724

/**
 * 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;
725
} __packed;
726

727 728 729 730 731 732 733 734 735 736 737 738
/**
 * 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;

739 740 741 742 743 744 745 746 747 748
/**
 * 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;

749 750 751 752 753 754 755 756 757 758 759 760
/**
 * 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;

761 762 763 764 765 766 767 768
/**
 * 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;

769 770 771 772 773 774 775 776 777 778
/**
 * 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 */
779
	u8 virtual_map[1];
780
} __packed;
781

782 783 784 785 786 787 788 789 790 791 792 793 794
/**
 * 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;
795
} __packed;
796

797 798 799 800 801 802 803 804
/**
 * 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
805 806
 * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 *	neighbors in deep sleep mode
807 808 809 810 811
 */
enum mesh_config_capab_flags {
	IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS		= 0x01,
	IEEE80211_MESHCONF_CAPAB_FORWARDING		= 0x08,
	IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING		= 0x20,
812
	IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL	= 0x40,
813 814
};

815 816 817 818 819 820 821 822
/**
 * 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)

823 824 825 826 827 828 829 830 831
/**
 * 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;
832
	u8 rann_addr[ETH_ALEN];
833 834 835
	__le32 rann_seq;
	__le32 rann_interval;
	__le32 rann_metric;
836
} __packed;
837

838 839 840 841
enum ieee80211_rann_flags {
	RANN_FLAG_IS_GATE = 1 << 0,
};

842 843 844 845 846
enum ieee80211_ht_chanwidth_values {
	IEEE80211_HT_CHANWIDTH_20MHZ = 0,
	IEEE80211_HT_CHANWIDTH_ANY = 1,
};

847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870
/**
 * 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,
};

871
#define WLAN_SA_QUERY_TR_ID_LEN 2
872 873
#define WLAN_MEMBERSHIP_LEN 8
#define WLAN_USER_POSITION_LEN 16
874

875 876 877 878 879 880 881 882 883 884
/**
 * struct ieee80211_tpc_report_ie
 *
 * This structure refers to "TPC Report element"
 */
struct ieee80211_tpc_report_ie {
	u8 tx_power;
	u8 link_margin;
} __packed;

885 886 887
struct ieee80211_mgmt {
	__le16 frame_control;
	__le16 duration;
888 889 890
	u8 da[ETH_ALEN];
	u8 sa[ETH_ALEN];
	u8 bssid[ETH_ALEN];
891 892 893 894 895 896 897 898
	__le16 seq_ctrl;
	union {
		struct {
			__le16 auth_alg;
			__le16 auth_transaction;
			__le16 status_code;
			/* possibly followed by Challenge text */
			u8 variable[0];
899
		} __packed auth;
900 901
		struct {
			__le16 reason_code;
902
		} __packed deauth;
903 904 905 906 907
		struct {
			__le16 capab_info;
			__le16 listen_interval;
			/* followed by SSID and Supported rates */
			u8 variable[0];
908
		} __packed assoc_req;
909 910 911 912 913 914
		struct {
			__le16 capab_info;
			__le16 status_code;
			__le16 aid;
			/* followed by Supported rates */
			u8 variable[0];
915
		} __packed assoc_resp, reassoc_resp;
916 917 918
		struct {
			__le16 capab_info;
			__le16 listen_interval;
919
			u8 current_ap[ETH_ALEN];
920 921
			/* followed by SSID and Supported rates */
			u8 variable[0];
922
		} __packed reassoc_req;
923 924
		struct {
			__le16 reason_code;
925
		} __packed disassoc;
926 927 928 929 930 931 932
		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];
933
		} __packed beacon;
934 935 936
		struct {
			/* only variable items: SSID, Supported rates */
			u8 variable[0];
937
		} __packed probe_req;
938 939 940 941 942 943 944
		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];
945
		} __packed probe_resp;
946 947 948 949 950 951 952 953
		struct {
			u8 category;
			union {
				struct {
					u8 action_code;
					u8 dialog_token;
					u8 status_code;
					u8 variable[0];
954
				} __packed wme_action;
955 956
				struct{
					u8 action_code;
957
					u8 variable[0];
958
				} __packed chan_switch;
959 960 961 962 963
				struct{
					u8 action_code;
					struct ieee80211_ext_chansw_ie data;
					u8 variable[0];
				} __packed ext_chan_switch;
964 965 966 967 968 969
				struct{
					u8 action_code;
					u8 dialog_token;
					u8 element_id;
					u8 length;
					struct ieee80211_msrment_ie msr_elem;
970
				} __packed measurement;
971 972 973 974 975 976
				struct{
					u8 action_code;
					u8 dialog_token;
					__le16 capab;
					__le16 timeout;
					__le16 start_seq_num;
977
				} __packed addba_req;
978 979 980 981 982 983
				struct{
					u8 action_code;
					u8 dialog_token;
					__le16 status;
					__le16 capab;
					__le16 timeout;
984
				} __packed addba_resp;
985 986 987 988
				struct{
					u8 action_code;
					__le16 params;
					__le16 reason_code;
989
				} __packed delba;
990 991 992
				struct {
					u8 action_code;
					u8 variable[0];
993
				} __packed self_prot;
994 995 996
				struct{
					u8 action_code;
					u8 variable[0];
997
				} __packed mesh_action;
998 999 1000
				struct {
					u8 action;
					u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1001
				} __packed sa_query;
1002 1003 1004
				struct {
					u8 action;
					u8 smps_control;
1005
				} __packed ht_smps;
1006 1007 1008 1009
				struct {
					u8 action_code;
					u8 chanwidth;
				} __packed ht_notify_cw;
1010 1011 1012 1013 1014 1015
				struct {
					u8 action_code;
					u8 dialog_token;
					__le16 capability;
					u8 variable[0];
				} __packed tdls_discover_resp;
1016 1017 1018 1019
				struct {
					u8 action_code;
					u8 operating_mode;
				} __packed vht_opmode_notif;
1020 1021 1022 1023 1024
				struct {
					u8 action_code;
					u8 membership[WLAN_MEMBERSHIP_LEN];
					u8 position[WLAN_USER_POSITION_LEN];
				} __packed vht_group_notif;
1025 1026 1027 1028 1029 1030 1031
				struct {
					u8 action_code;
					u8 dialog_token;
					u8 tpc_elem_id;
					u8 tpc_elem_length;
					struct ieee80211_tpc_report_ie tpc;
				} __packed tpc_report;
1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
				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;
1042
			} u;
1043
		} __packed action;
1044
	} u;
1045
} __packed __aligned(2);
1046

1047
/* Supported rates membership selectors */
1048
#define BSS_MEMBERSHIP_SELECTOR_HT_PHY	127
1049
#define BSS_MEMBERSHIP_SELECTOR_VHT_PHY	126
1050

1051 1052 1053
/* mgmt header + 1 byte category code */
#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)

1054

1055 1056 1057 1058 1059 1060 1061
/* 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];
1062
} __packed;
1063

1064 1065 1066 1067 1068 1069 1070 1071 1072
/* 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;

1073 1074 1075 1076 1077 1078 1079
struct ieee80211_vendor_ie {
	u8 element_id;
	u8 len;
	u8 oui[3];
	u8 oui_type;
} __packed;

1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099
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;

1100 1101 1102 1103
/* Control frames */
struct ieee80211_rts {
	__le16 frame_control;
	__le16 duration;
1104 1105
	u8 ra[ETH_ALEN];
	u8 ta[ETH_ALEN];
1106
} __packed __aligned(2);
1107 1108 1109 1110

struct ieee80211_cts {
	__le16 frame_control;
	__le16 duration;
1111
	u8 ra[ETH_ALEN];
1112
} __packed __aligned(2);
1113

1114 1115 1116
struct ieee80211_pspoll {
	__le16 frame_control;
	__le16 aid;
1117 1118
	u8 bssid[ETH_ALEN];
	u8 ta[ETH_ALEN];
1119
} __packed __aligned(2);
1120

1121 1122
/* TDLS */

1123 1124 1125 1126 1127 1128
/* Channel switch timing */
struct ieee80211_ch_switch_timing {
	__le16 switch_time;
	__le16 switch_timeout;
} __packed;

1129 1130 1131 1132
/* Link-id information element */
struct ieee80211_tdls_lnkie {
	u8 ie_type; /* Link Identifier IE */
	u8 ie_len;
1133 1134 1135
	u8 bssid[ETH_ALEN];
	u8 init_sta[ETH_ALEN];
	u8 resp_sta[ETH_ALEN];
1136 1137 1138
} __packed;

struct ieee80211_tdls_data {
1139 1140
	u8 da[ETH_ALEN];
	u8 sa[ETH_ALEN];
1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169
	__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;
1170 1171 1172 1173 1174 1175 1176 1177 1178
		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;
1179 1180 1181
	} u;
} __packed;

1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
/*
 * 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
};

1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
/* 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

1234 1235 1236 1237 1238 1239 1240 1241 1242
/**
 * 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;
1243 1244
	__u8 ra[ETH_ALEN];
	__u8 ta[ETH_ALEN];
1245 1246
	__le16 control;
	__le16 start_seq_num;
1247
} __packed;
1248

1249
/* 802.11 BAR control masks */
1250 1251 1252 1253 1254
#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
1255 1256 1257 1258 1259 1260

#define IEEE80211_HT_MCS_MASK_LEN		10

/**
 * struct ieee80211_mcs_info - MCS information
 * @rx_mask: RX mask
1261 1262 1263 1264
 * @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.
1265 1266 1267 1268 1269 1270 1271
 * @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];
1272
} __packed;
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294

/* 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)

1295 1296 1297
/**
 * struct ieee80211_ht_cap - HT capabilities
 *
1298 1299
 * This structure is the "HT capabilities element" as
 * described in 802.11n D5.0 7.3.2.57
1300 1301 1302 1303
 */
struct ieee80211_ht_cap {
	__le16 cap_info;
	u8 ampdu_params_info;
1304 1305 1306 1307

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

1308 1309 1310
	__le16 extended_ht_cap_info;
	__le32 tx_BF_cap_info;
	u8 antenna_selection_info;
1311
} __packed;
1312

1313 1314 1315 1316
/* 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
1317
#define		IEEE80211_HT_CAP_SM_PS_SHIFT	2
1318 1319 1320 1321 1322
#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
1323
#define		IEEE80211_HT_CAP_RX_STBC_SHIFT	8
1324 1325 1326
#define IEEE80211_HT_CAP_DELAY_BA		0x0400
#define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
#define IEEE80211_HT_CAP_DSSSCCK40		0x1000
1327
#define IEEE80211_HT_CAP_RESERVED		0x2000
1328 1329 1330
#define IEEE80211_HT_CAP_40MHZ_INTOLERANT	0x4000
#define IEEE80211_HT_CAP_LSIG_TXOP_PROT		0x8000

1331 1332 1333 1334 1335 1336 1337 1338 1339
/* 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

1340 1341 1342
/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
#define IEEE80211_HT_AMPDU_PARM_FACTOR		0x03
#define IEEE80211_HT_AMPDU_PARM_DENSITY		0x1C
1343
#define		IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT	2
1344

1345
/*
1346
 * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1347 1348 1349 1350 1351 1352 1353 1354 1355
 * 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
};

1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370
/*
 * 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
};

1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384
#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 */
};

1385
/**
1386
 * struct ieee80211_ht_operation - HT operation IE
1387
 *
1388 1389
 * This structure is the "HT operation element" as
 * described in 802.11n-2009 7.3.2.57
1390
 */
1391 1392
struct ieee80211_ht_operation {
	u8 primary_chan;
1393 1394 1395 1396
	u8 ht_param;
	__le16 operation_mode;
	__le16 stbc_param;
	u8 basic_set[16];
1397
} __packed;
1398

1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414
/* 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
1415 1416
#define IEEE80211_HT_OP_MODE_CCFS2_SHIFT		5
#define IEEE80211_HT_OP_MODE_CCFS2_MASK			0x1fe0
1417 1418 1419 1420 1421 1422 1423 1424 1425

/* 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

1426

1427
/* block-ack parameters */
1428
#define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1429 1430
#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1431
#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1432 1433 1434 1435
#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800

/*
1436 1437 1438
 * A-MPDU buffer sizes
 * According to HT size varies from 8 to 64 frames
 * HE adds the ability to have up to 256 frames.
1439
 */
1440 1441 1442
#define IEEE80211_MIN_AMPDU_BUF		0x8
#define IEEE80211_MAX_AMPDU_BUF_HT	0x40
#define IEEE80211_MAX_AMPDU_BUF		0x100
1443 1444


1445
/* Spatial Multiplexing Power Save Modes (for capability) */
1446 1447 1448 1449
#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
1450

1451 1452 1453 1454 1455
/* 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

1456 1457 1458 1459 1460 1461 1462
/**
 * 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.
1463 1464
 *	The top 3 bits of this field indicate the Maximum NSTS,total
 *	(a beamformee capability.)
1465 1466 1467 1468 1469
 * @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.
1470 1471 1472
 *	The top 2 bits of this field are reserved, the
 *	3rd bit from the top indiciates VHT Extended NSS BW
 *	Capability.
1473 1474 1475 1476 1477 1478 1479 1480
 */
struct ieee80211_vht_mcs_info {
	__le16 rx_mcs_map;
	__le16 rx_highest;
	__le16 tx_mcs_map;
	__le16 tx_highest;
} __packed;

1481 1482 1483 1484 1485 1486 1487
/* for rx_highest */
#define IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT	13
#define IEEE80211_VHT_MAX_NSTS_TOTAL_MASK	(7 << IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT)

/* for tx_highest */
#define IEEE80211_VHT_EXT_NSS_BW_CAPABLE	(1 << 13)

1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508
/**
 * 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,
};

1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521
/**
 * 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;

1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536
/**
 * 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,
};

1537 1538 1539 1540 1541 1542
/**
 * 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
1543
 * @center_freq_seg0_idx: center freq segment 0 index
1544 1545 1546 1547 1548
 * @center_freq_seg1_idx: center freq segment 1 index
 * @basic_mcs_set: VHT Basic MCS rate set
 */
struct ieee80211_vht_operation {
	u8 chan_width;
1549
	u8 center_freq_seg0_idx;
1550 1551 1552 1553
	u8 center_freq_seg1_idx;
	__le16 basic_mcs_set;
} __packed;

1554 1555 1556 1557
/**
 * struct ieee80211_he_cap_elem - HE capabilities element
 *
 * This structure is the "HE capabilities element" fixed fields as
1558
 * described in P802.11ax_D3.0 section 9.4.2.237.2 and 9.4.2.237.3
1559 1560
 */
struct ieee80211_he_cap_elem {
1561 1562
	u8 mac_cap_info[6];
	u8 phy_cap_info[11];
1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653
} __packed;

#define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN	5

/**
 * enum ieee80211_he_mcs_support - HE MCS support definitions
 * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
 *	number of streams
 * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
 * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
 * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
 *
 * These definitions are used in each 2-bit subfield of the rx_mcs_*
 * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, 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_he_mcs_support {
	IEEE80211_HE_MCS_SUPPORT_0_7	= 0,
	IEEE80211_HE_MCS_SUPPORT_0_9	= 1,
	IEEE80211_HE_MCS_SUPPORT_0_11	= 2,
	IEEE80211_HE_MCS_NOT_SUPPORTED	= 3,
};

/**
 * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
 *
 * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
 * described in P802.11ax_D2.0 section 9.4.2.237.4
 *
 * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
 *     widths less than 80MHz.
 * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
 *     widths less than 80MHz.
 * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
 *     width 160MHz.
 * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
 *     width 160MHz.
 * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
 *     channel width 80p80MHz.
 * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
 *     channel width 80p80MHz.
 */
struct ieee80211_he_mcs_nss_supp {
	__le16 rx_mcs_80;
	__le16 tx_mcs_80;
	__le16 rx_mcs_160;
	__le16 tx_mcs_160;
	__le16 rx_mcs_80p80;
	__le16 tx_mcs_80p80;
} __packed;

/**
 * struct ieee80211_he_operation - HE capabilities element
 *
 * This structure is the "HE operation element" fields as
 * described in P802.11ax_D2.0 section 9.4.2.238
 */
struct ieee80211_he_operation {
	__le32 he_oper_params;
	__le16 he_mcs_nss_set;
	/* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */
	u8 optional[0];
} __packed;

/**
 * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
 *
 * This structure is the "MU AC Parameter Record" fields as
 * described in P802.11ax_D2.0 section 9.4.2.240
 */
struct ieee80211_he_mu_edca_param_ac_rec {
	u8 aifsn;
	u8 ecw_min_max;
	u8 mu_edca_timer;
} __packed;

/**
 * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
 *
 * This structure is the "MU EDCA Parameter Set element" fields as
 * described in P802.11ax_D2.0 section 9.4.2.240
 */
struct ieee80211_mu_edca_param_set {
	u8 mu_qos_info;
	struct ieee80211_he_mu_edca_param_ac_rec ac_be;
	struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
	struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
	struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
} __packed;
1654

1655
/* 802.11ac VHT Capabilities */
1656 1657 1658
#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
1659
#define IEEE80211_VHT_CAP_MAX_MPDU_MASK				0x00000003
1660 1661
#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ		0x00000004
#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ	0x00000008
1662
#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK			0x0000000C
1663
#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_SHIFT			2
1664 1665 1666 1667 1668 1669 1670 1671
#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
1672
#define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
1673
#define IEEE80211_VHT_CAP_RXSTBC_SHIFT				8
1674 1675
#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
1676 1677 1678 1679 1680 1681
#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)
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#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
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#define IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT			30
#define IEEE80211_VHT_CAP_EXT_NSS_BW_MASK			0xc0000000

/**
 * ieee80211_get_vht_max_nss - return max NSS for a given bandwidth/MCS
 * @cap: VHT capabilities of the peer
 * @bw: bandwidth to use
 * @mcs: MCS index to use
 * @ext_nss_bw_capable: indicates whether or not the local transmitter
 *	(rate scaling algorithm) can deal with the new logic
 *	(dot11VHTExtendedNSSBWCapable)
 *
 * Due to the VHT Extended NSS Bandwidth Support, the maximum NSS can
 * vary for a given BW/MCS. This function parses the data.
 *
 * Note: This function is exported by cfg80211.
 */
int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
			      enum ieee80211_vht_chanwidth bw,
			      int mcs, bool ext_nss_bw_capable);
1713

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/* 802.11ax HE MAC capabilities */
#define IEEE80211_HE_MAC_CAP0_HTC_HE				0x01
#define IEEE80211_HE_MAC_CAP0_TWT_REQ				0x02
#define IEEE80211_HE_MAC_CAP0_TWT_RES				0x04
#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP		0x00
#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1		0x08
#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2		0x10
#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3		0x18
#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK			0x18
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1		0x00
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2		0x20
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4		0x40
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8		0x60
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16		0x80
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32		0xa0
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64		0xc0
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED	0xe0
#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK		0xe0

#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED		0x00
#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128			0x01
#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256			0x02
#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512			0x03
#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK		0x03
#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US		0x00
#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US		0x04
#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US		0x08
#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK		0x0c
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#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_1		0x00
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_2		0x10
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_3		0x20
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_4		0x30
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_5		0x40
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_6		0x50
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_7		0x60
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8		0x70
#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_MASK		0x70
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/* Link adaptation is split between byte HE_MAC_CAP1 and
 * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
 * in which case the following values apply:
 * 0 = No feedback.
 * 1 = reserved.
 * 2 = Unsolicited feedback.
 * 3 = both
 */
#define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION			0x80

#define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION			0x01
#define IEEE80211_HE_MAC_CAP2_ALL_ACK				0x02
1764
#define IEEE80211_HE_MAC_CAP2_TRS				0x04
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#define IEEE80211_HE_MAC_CAP2_BSR				0x08
#define IEEE80211_HE_MAC_CAP2_BCAST_TWT				0x10
#define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP			0x20
#define IEEE80211_HE_MAC_CAP2_MU_CASCADING			0x40
#define IEEE80211_HE_MAC_CAP2_ACK_EN				0x80

#define IEEE80211_HE_MAC_CAP3_OMI_CONTROL			0x02
#define IEEE80211_HE_MAC_CAP3_OFDMA_RA				0x04

/* The maximum length of an A-MDPU is defined by the combination of the Maximum
 * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
 * same field in the HE capabilities.
 */
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#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT	0x00
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1		0x08
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2		0x10
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED	0x18
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK		0x18
#define IEEE80211_HE_MAC_CAP3_AMSDU_FRAG			0x20
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#define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED			0x40
#define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS		0x80

#define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG		0x01
#define IEEE80211_HE_MAC_CAP4_QTP				0x02
#define IEEE80211_HE_MAC_CAP4_BQR				0x04
1790
#define IEEE80211_HE_MAC_CAP4_SRP_RESP				0x08
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#define IEEE80211_HE_MAC_CAP4_NDP_FB_REP			0x10
#define IEEE80211_HE_MAC_CAP4_OPS				0x20
#define IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU			0x40
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/* Multi TID agg TX is split between byte #4 and #5
 * The value is a combination of B39,B40,B41
 */
#define IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39		0x80

#define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40		0x01
#define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41		0x02
#define IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECVITE_TRANSMISSION	0x04
#define IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU			0x08
#define IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX		0x10
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/* 802.11ax HE PHY capabilities */
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G		0x02
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G	0x04
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G		0x08
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G	0x10
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G	0x20
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G	0x40
#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK			0xfe

#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ	0x01
#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ	0x02
#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ	0x04
#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ	0x08
#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK			0x0f
#define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A				0x10
#define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD			0x20
#define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US		0x40
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/* Midamble RX/TX Max NSTS is split between byte #2 and byte #3 */
#define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS			0x80
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1825
#define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS			0x01
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#define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US			0x02
#define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ			0x04
#define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ			0x08
#define IEEE80211_HE_PHY_CAP2_DOPPLER_TX				0x10
#define IEEE80211_HE_PHY_CAP2_DOPPLER_RX				0x20

/* Note that the meaning of UL MU below is different between an AP and a non-AP
 * sta, where in the AP case it indicates support for Rx and in the non-AP sta
 * case it indicates support for Tx.
 */
#define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO			0x40
#define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO			0x80

#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM			0x00
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK			0x01
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK			0x02
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM			0x03
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK			0x03
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1				0x00
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2				0x04
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM			0x00
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK			0x08
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK			0x10
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM			0x18
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK			0x18
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1				0x00
#define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2				0x20
#define IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA		0x40
#define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER				0x80

#define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE				0x01
#define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER				0x02

/* Minimal allowed value of Max STS under 80MHz is 3 */
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4		0x0c
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5		0x10
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6		0x14
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7		0x18
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8		0x1c
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK	0x1c

/* Minimal allowed value of Max STS above 80MHz is 3 */
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4		0x60
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5		0x80
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6		0xa0
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7		0xc0
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8		0xe0
#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK	0xe0

#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1	0x00
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2	0x01
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3	0x02
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4	0x03
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5	0x04
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6	0x05
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7	0x06
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8	0x07
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK	0x07

#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1	0x00
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2	0x08
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3	0x10
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4	0x18
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5	0x20
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6	0x28
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7	0x30
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8	0x38
#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK	0x38

#define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK				0x40
#define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK				0x80

#define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU			0x01
#define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU			0x02
#define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB			0x04
#define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB			0x08
#define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB				0x10
#define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE			0x20
#define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO		0x40
#define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT			0x80

#define IEEE80211_HE_PHY_CAP7_SRP_BASED_SR				0x01
#define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR			0x02
#define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI		0x04
#define IEEE80211_HE_PHY_CAP7_MAX_NC_1					0x08
#define IEEE80211_HE_PHY_CAP7_MAX_NC_2					0x10
#define IEEE80211_HE_PHY_CAP7_MAX_NC_3					0x18
#define IEEE80211_HE_PHY_CAP7_MAX_NC_4					0x20
#define IEEE80211_HE_PHY_CAP7_MAX_NC_5					0x28
#define IEEE80211_HE_PHY_CAP7_MAX_NC_6					0x30
#define IEEE80211_HE_PHY_CAP7_MAX_NC_7					0x38
#define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK				0x38
#define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ			0x40
#define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ			0x80

#define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI		0x01
#define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G		0x02
#define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU			0x04
#define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU			0x08
#define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI		0x10
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#define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_TX_2X_AND_1XLTF		0x20
#define IEEE80211_HE_PHY_CAP8_DCM_MAX_BW_20MHZ				0x00
#define IEEE80211_HE_PHY_CAP8_DCM_MAX_BW_40MHZ				0x40
#define IEEE80211_HE_PHY_CAP8_DCM_MAX_BW_80MHZ				0x80
#define IEEE80211_HE_PHY_CAP8_DCM_MAX_BW_160_OR_80P80_MHZ		0xc0
#define IEEE80211_HE_PHY_CAP8_DCM_MAX_BW_MASK				0xc0

#define IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM		0x01
#define IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK		0x02
#define IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU		0x04
#define IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU		0x08
#define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB	0x10
#define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB	0x20
1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

/* 802.11ax HE TX/RX MCS NSS Support  */
#define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS			(3)
#define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS			(6)
#define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS			(11)
#define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK			0x07c0
#define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK			0xf800

/* TX/RX HE MCS Support field Highest MCS subfield encoding */
enum ieee80211_he_highest_mcs_supported_subfield_enc {
	HIGHEST_MCS_SUPPORTED_MCS7 = 0,
	HIGHEST_MCS_SUPPORTED_MCS8,
	HIGHEST_MCS_SUPPORTED_MCS9,
	HIGHEST_MCS_SUPPORTED_MCS10,
	HIGHEST_MCS_SUPPORTED_MCS11,
};

/* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
static inline u8
ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
{
	u8 count = 4;

	if (he_cap->phy_cap_info[