mirror of
https://github.com/edk2-porting/linux-next.git
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f79d9bad37
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1600 lines
45 KiB
C
1600 lines
45 KiB
C
/*
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* IEEE 802.11 defines
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <jkmaline@cc.hut.fi>
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* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
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* Copyright (c) 2005, Devicescape Software, Inc.
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef LINUX_IEEE80211_H
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#define LINUX_IEEE80211_H
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#include <linux/types.h>
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#include <asm/byteorder.h>
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/*
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* DS bit usage
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*
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* TA = transmitter address
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* RA = receiver address
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* DA = destination address
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* SA = source address
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*
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* ToDS FromDS A1(RA) A2(TA) A3 A4 Use
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* -----------------------------------------------------------------
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* 0 0 DA SA BSSID - IBSS/DLS
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* 0 1 DA BSSID SA - AP -> STA
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* 1 0 BSSID SA DA - AP <- STA
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* 1 1 RA TA DA SA unspecified (WDS)
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*/
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#define FCS_LEN 4
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#define IEEE80211_FCTL_VERS 0x0003
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#define IEEE80211_FCTL_FTYPE 0x000c
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#define IEEE80211_FCTL_STYPE 0x00f0
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#define IEEE80211_FCTL_TODS 0x0100
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#define IEEE80211_FCTL_FROMDS 0x0200
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#define IEEE80211_FCTL_MOREFRAGS 0x0400
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#define IEEE80211_FCTL_RETRY 0x0800
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#define IEEE80211_FCTL_PM 0x1000
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#define IEEE80211_FCTL_MOREDATA 0x2000
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#define IEEE80211_FCTL_PROTECTED 0x4000
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#define IEEE80211_FCTL_ORDER 0x8000
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#define IEEE80211_SCTL_FRAG 0x000F
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#define IEEE80211_SCTL_SEQ 0xFFF0
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#define IEEE80211_FTYPE_MGMT 0x0000
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#define IEEE80211_FTYPE_CTL 0x0004
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#define IEEE80211_FTYPE_DATA 0x0008
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/* management */
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#define IEEE80211_STYPE_ASSOC_REQ 0x0000
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#define IEEE80211_STYPE_ASSOC_RESP 0x0010
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#define IEEE80211_STYPE_REASSOC_REQ 0x0020
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#define IEEE80211_STYPE_REASSOC_RESP 0x0030
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#define IEEE80211_STYPE_PROBE_REQ 0x0040
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#define IEEE80211_STYPE_PROBE_RESP 0x0050
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#define IEEE80211_STYPE_BEACON 0x0080
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#define IEEE80211_STYPE_ATIM 0x0090
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#define IEEE80211_STYPE_DISASSOC 0x00A0
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#define IEEE80211_STYPE_AUTH 0x00B0
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#define IEEE80211_STYPE_DEAUTH 0x00C0
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#define IEEE80211_STYPE_ACTION 0x00D0
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/* control */
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#define IEEE80211_STYPE_BACK_REQ 0x0080
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#define IEEE80211_STYPE_BACK 0x0090
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#define IEEE80211_STYPE_PSPOLL 0x00A0
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#define IEEE80211_STYPE_RTS 0x00B0
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#define IEEE80211_STYPE_CTS 0x00C0
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#define IEEE80211_STYPE_ACK 0x00D0
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#define IEEE80211_STYPE_CFEND 0x00E0
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#define IEEE80211_STYPE_CFENDACK 0x00F0
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/* data */
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#define IEEE80211_STYPE_DATA 0x0000
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#define IEEE80211_STYPE_DATA_CFACK 0x0010
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#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
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#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
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#define IEEE80211_STYPE_NULLFUNC 0x0040
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#define IEEE80211_STYPE_CFACK 0x0050
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#define IEEE80211_STYPE_CFPOLL 0x0060
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#define IEEE80211_STYPE_CFACKPOLL 0x0070
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#define IEEE80211_STYPE_QOS_DATA 0x0080
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#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
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#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
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#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
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#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
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#define IEEE80211_STYPE_QOS_CFACK 0x00D0
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#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
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#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
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/* miscellaneous IEEE 802.11 constants */
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#define IEEE80211_MAX_FRAG_THRESHOLD 2352
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#define IEEE80211_MAX_RTS_THRESHOLD 2353
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#define IEEE80211_MAX_AID 2007
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#define IEEE80211_MAX_TIM_LEN 251
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/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
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6.2.1.1.2.
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802.11e clarifies the figure in section 7.1.2. The frame body is
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up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
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#define IEEE80211_MAX_DATA_LEN 2304
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/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
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#define IEEE80211_MAX_FRAME_LEN 2352
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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_QOS_CTL_LEN 2
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#define IEEE80211_QOS_CTL_TID_MASK 0x000F
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#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
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/* U-APSD queue for WMM IEs sent by AP */
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#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
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/* U-APSD queues for WMM IEs sent by STA */
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#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
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#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
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#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
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#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
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#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
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/* U-APSD max SP length for WMM IEs sent by STA */
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#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
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#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
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#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
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#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
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#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
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#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 {
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__le16 frame_control;
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__le16 duration_id;
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u8 addr1[6];
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u8 addr2[6];
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u8 addr3[6];
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__le16 seq_ctrl;
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u8 addr4[6];
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} __attribute__ ((packed));
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struct ieee80211_hdr_3addr {
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__le16 frame_control;
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__le16 duration_id;
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u8 addr1[6];
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u8 addr2[6];
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u8 addr3[6];
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__le16 seq_ctrl;
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} __attribute__ ((packed));
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struct ieee80211_qos_hdr {
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__le16 frame_control;
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__le16 duration_id;
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u8 addr1[6];
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u8 addr2[6];
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u8 addr3[6];
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__le16 seq_ctrl;
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__le16 qos_ctrl;
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} __attribute__ ((packed));
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/**
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* ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_tods(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
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}
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/**
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* ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_fromds(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
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}
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/**
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* ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_a4(__le16 fc)
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{
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__le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
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return (fc & tmp) == tmp;
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}
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/**
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* ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_morefrags(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
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}
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/**
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* ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_retry(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
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}
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/**
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* ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_pm(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
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}
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/**
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* ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_moredata(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
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}
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/**
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* ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_protected(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
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}
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/**
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* ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_has_order(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
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}
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/**
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* ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_mgmt(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT);
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}
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/**
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* ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_ctl(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_CTL);
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}
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/**
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* ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_data(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_DATA);
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}
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/**
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* ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_data_qos(__le16 fc)
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{
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/*
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* mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
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* to check the one bit
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*/
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
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cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
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}
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/**
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* ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_data_present(__le16 fc)
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{
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/*
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* mask with 0x40 and test that that bit is clear to only return true
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* for the data-containing substypes.
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*/
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
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cpu_to_le16(IEEE80211_FTYPE_DATA);
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}
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/**
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* ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_assoc_req(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
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}
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/**
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* ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_assoc_resp(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
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}
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/**
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* ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_reassoc_req(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
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}
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/**
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* ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_reassoc_resp(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
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}
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/**
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* ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_probe_req(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
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}
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/**
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* ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_probe_resp(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
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}
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/**
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* ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_beacon(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
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}
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/**
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* ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_atim(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
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}
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/**
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* ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_disassoc(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
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}
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/**
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* ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_auth(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
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}
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/**
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* ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_deauth(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
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}
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/**
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* ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline int ieee80211_is_action(__le16 fc)
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{
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return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
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cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
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}
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/**
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* ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
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* @fc: frame control bytes in little-endian byteorder
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*/
|
|
static inline int 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 int 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 int 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 int 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 int 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 int 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 int 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 int 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 int 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 int 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);
|
|
}
|
|
|
|
struct ieee80211s_hdr {
|
|
u8 flags;
|
|
u8 ttl;
|
|
__le32 seqnum;
|
|
u8 eaddr1[6];
|
|
u8 eaddr2[6];
|
|
u8 eaddr3[6];
|
|
} __attribute__ ((packed));
|
|
|
|
/* 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
|
|
|
|
/**
|
|
* struct ieee80211_quiet_ie
|
|
*
|
|
* This structure refers to "Quiet information element"
|
|
*/
|
|
struct ieee80211_quiet_ie {
|
|
u8 count;
|
|
u8 period;
|
|
__le16 duration;
|
|
__le16 offset;
|
|
} __attribute__ ((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];
|
|
} __attribute__ ((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;
|
|
} __attribute__ ((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];
|
|
} __attribute__ ((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;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* 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[6];
|
|
u32 rann_seq;
|
|
u32 rann_metric;
|
|
} __attribute__ ((packed));
|
|
|
|
#define WLAN_SA_QUERY_TR_ID_LEN 2
|
|
|
|
struct ieee80211_mgmt {
|
|
__le16 frame_control;
|
|
__le16 duration;
|
|
u8 da[6];
|
|
u8 sa[6];
|
|
u8 bssid[6];
|
|
__le16 seq_ctrl;
|
|
union {
|
|
struct {
|
|
__le16 auth_alg;
|
|
__le16 auth_transaction;
|
|
__le16 status_code;
|
|
/* possibly followed by Challenge text */
|
|
u8 variable[0];
|
|
} __attribute__ ((packed)) auth;
|
|
struct {
|
|
__le16 reason_code;
|
|
} __attribute__ ((packed)) deauth;
|
|
struct {
|
|
__le16 capab_info;
|
|
__le16 listen_interval;
|
|
/* followed by SSID and Supported rates */
|
|
u8 variable[0];
|
|
} __attribute__ ((packed)) assoc_req;
|
|
struct {
|
|
__le16 capab_info;
|
|
__le16 status_code;
|
|
__le16 aid;
|
|
/* followed by Supported rates */
|
|
u8 variable[0];
|
|
} __attribute__ ((packed)) assoc_resp, reassoc_resp;
|
|
struct {
|
|
__le16 capab_info;
|
|
__le16 listen_interval;
|
|
u8 current_ap[6];
|
|
/* followed by SSID and Supported rates */
|
|
u8 variable[0];
|
|
} __attribute__ ((packed)) reassoc_req;
|
|
struct {
|
|
__le16 reason_code;
|
|
} __attribute__ ((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];
|
|
} __attribute__ ((packed)) beacon;
|
|
struct {
|
|
/* only variable items: SSID, Supported rates */
|
|
u8 variable[0];
|
|
} __attribute__ ((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];
|
|
} __attribute__ ((packed)) probe_resp;
|
|
struct {
|
|
u8 category;
|
|
union {
|
|
struct {
|
|
u8 action_code;
|
|
u8 dialog_token;
|
|
u8 status_code;
|
|
u8 variable[0];
|
|
} __attribute__ ((packed)) wme_action;
|
|
struct{
|
|
u8 action_code;
|
|
u8 element_id;
|
|
u8 length;
|
|
struct ieee80211_channel_sw_ie sw_elem;
|
|
} __attribute__((packed)) chan_switch;
|
|
struct{
|
|
u8 action_code;
|
|
u8 dialog_token;
|
|
u8 element_id;
|
|
u8 length;
|
|
struct ieee80211_msrment_ie msr_elem;
|
|
} __attribute__((packed)) measurement;
|
|
struct{
|
|
u8 action_code;
|
|
u8 dialog_token;
|
|
__le16 capab;
|
|
__le16 timeout;
|
|
__le16 start_seq_num;
|
|
} __attribute__((packed)) addba_req;
|
|
struct{
|
|
u8 action_code;
|
|
u8 dialog_token;
|
|
__le16 status;
|
|
__le16 capab;
|
|
__le16 timeout;
|
|
} __attribute__((packed)) addba_resp;
|
|
struct{
|
|
u8 action_code;
|
|
__le16 params;
|
|
__le16 reason_code;
|
|
} __attribute__((packed)) delba;
|
|
struct{
|
|
u8 action_code;
|
|
/* capab_info for open and confirm,
|
|
* reason for close
|
|
*/
|
|
__le16 aux;
|
|
/* Followed in plink_confirm by status
|
|
* code, AID and supported rates,
|
|
* and directly by supported rates in
|
|
* plink_open and plink_close
|
|
*/
|
|
u8 variable[0];
|
|
} __attribute__((packed)) plink_action;
|
|
struct{
|
|
u8 action_code;
|
|
u8 variable[0];
|
|
} __attribute__((packed)) mesh_action;
|
|
struct {
|
|
u8 action;
|
|
u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
|
|
} __attribute__ ((packed)) sa_query;
|
|
struct {
|
|
u8 action;
|
|
u8 smps_control;
|
|
} __attribute__ ((packed)) ht_smps;
|
|
} u;
|
|
} __attribute__ ((packed)) action;
|
|
} u;
|
|
} __attribute__ ((packed));
|
|
|
|
/* 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];
|
|
} __attribute__ ((packed));
|
|
|
|
/* Control frames */
|
|
struct ieee80211_rts {
|
|
__le16 frame_control;
|
|
__le16 duration;
|
|
u8 ra[6];
|
|
u8 ta[6];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_cts {
|
|
__le16 frame_control;
|
|
__le16 duration;
|
|
u8 ra[6];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_pspoll {
|
|
__le16 frame_control;
|
|
__le16 aid;
|
|
u8 bssid[6];
|
|
u8 ta[6];
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* 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[6];
|
|
__u8 ta[6];
|
|
__le16 control;
|
|
__le16 start_seq_num;
|
|
} __attribute__((packed));
|
|
|
|
/* 802.11 BAR control masks */
|
|
#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
|
|
#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
|
|
|
|
|
|
#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];
|
|
} __attribute__((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;
|
|
} __attribute__ ((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 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.
|
|
* 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
|
|
};
|
|
|
|
#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_info - HT information
|
|
*
|
|
* This structure is the "HT information element" as
|
|
* described in 802.11n D5.0 7.3.2.58
|
|
*/
|
|
struct ieee80211_ht_info {
|
|
u8 control_chan;
|
|
u8 ht_param;
|
|
__le16 operation_mode;
|
|
__le16 stbc_param;
|
|
u8 basic_set[16];
|
|
} __attribute__ ((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
|
|
#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
|
|
#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
|
|
|
|
/* 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_POLICY_MASK 0x0002
|
|
#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
|
|
#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
|
|
#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
|
|
|
|
/* Authentication algorithms */
|
|
#define WLAN_AUTH_OPEN 0
|
|
#define WLAN_AUTH_SHARED_KEY 1
|
|
#define WLAN_AUTH_FT 2
|
|
#define WLAN_AUTH_LEAP 128
|
|
|
|
#define WLAN_AUTH_CHALLENGE_LEN 128
|
|
|
|
#define WLAN_CAPABILITY_ESS (1<<0)
|
|
#define WLAN_CAPABILITY_IBSS (1<<1)
|
|
#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_DSSS_OFDM (1<<13)
|
|
/* 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,
|
|
};
|
|
|
|
/* 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,
|
|
};
|
|
|
|
|
|
/* 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,
|
|
/* 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,
|
|
};
|
|
|
|
|
|
/* Information Element IDs */
|
|
enum ieee80211_eid {
|
|
WLAN_EID_SSID = 0,
|
|
WLAN_EID_SUPP_RATES = 1,
|
|
WLAN_EID_FH_PARAMS = 2,
|
|
WLAN_EID_DS_PARAMS = 3,
|
|
WLAN_EID_CF_PARAMS = 4,
|
|
WLAN_EID_TIM = 5,
|
|
WLAN_EID_IBSS_PARAMS = 6,
|
|
WLAN_EID_CHALLENGE = 16,
|
|
|
|
WLAN_EID_COUNTRY = 7,
|
|
WLAN_EID_HP_PARAMS = 8,
|
|
WLAN_EID_HP_TABLE = 9,
|
|
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_TS_DELAY = 43,
|
|
WLAN_EID_TCLAS_PROCESSING = 44,
|
|
WLAN_EID_QOS_CAPA = 46,
|
|
/* 802.11s
|
|
*
|
|
* All mesh EID numbers are pending IEEE 802.11 ANA approval.
|
|
* The numbers have been incremented from those suggested in
|
|
* 802.11s/D2.0 so that MESH_CONFIG does not conflict with
|
|
* EXT_SUPP_RATES.
|
|
*/
|
|
WLAN_EID_MESH_CONFIG = 51,
|
|
WLAN_EID_MESH_ID = 52,
|
|
WLAN_EID_PEER_LINK = 55,
|
|
WLAN_EID_PREQ = 68,
|
|
WLAN_EID_PREP = 69,
|
|
WLAN_EID_PERR = 70,
|
|
WLAN_EID_RANN = 49, /* compatible with FreeBSD */
|
|
|
|
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_EXT_SUPP_RATES = 50,
|
|
|
|
WLAN_EID_HT_CAPABILITY = 45,
|
|
WLAN_EID_HT_INFORMATION = 61,
|
|
|
|
WLAN_EID_RSN = 48,
|
|
WLAN_EID_MMIE = 76,
|
|
WLAN_EID_WPA = 221,
|
|
WLAN_EID_GENERIC = 221,
|
|
WLAN_EID_VENDOR_SPECIFIC = 221,
|
|
WLAN_EID_QOS_PARAMETER = 222,
|
|
|
|
WLAN_EID_AP_CHAN_REPORT = 51,
|
|
WLAN_EID_NEIGHBOR_REPORT = 52,
|
|
WLAN_EID_RCPI = 53,
|
|
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_RRM_ENABLED_CAPABILITIES = 70,
|
|
WLAN_EID_MULTIPLE_BSSID = 71,
|
|
|
|
WLAN_EID_MOBILITY_DOMAIN = 54,
|
|
WLAN_EID_FAST_BSS_TRANSITION = 55,
|
|
WLAN_EID_TIMEOUT_INTERVAL = 56,
|
|
WLAN_EID_RIC_DATA = 57,
|
|
WLAN_EID_RIC_DESCRIPTOR = 75,
|
|
|
|
WLAN_EID_DSE_REGISTERED_LOCATION = 58,
|
|
WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
|
|
WLAN_EID_EXT_CHANSWITCH_ANN = 60,
|
|
};
|
|
|
|
/* 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_HT = 7,
|
|
WLAN_CATEGORY_SA_QUERY = 8,
|
|
WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
|
|
WLAN_CATEGORY_WMM = 17,
|
|
WLAN_CATEGORY_MESH_PLINK = 30, /* Pending ANA approval */
|
|
WLAN_CATEGORY_MESH_PATH_SEL = 32, /* Pending ANA approval */
|
|
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,
|
|
};
|
|
|
|
/* 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_TKIP = 32,
|
|
WLAN_KEY_LEN_AES_CMAC = 16,
|
|
};
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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;
|
|
} __attribute__ ((packed)) chans;
|
|
struct {
|
|
u8 reg_extension_id;
|
|
u8 reg_class;
|
|
u8 coverage_class;
|
|
} __attribute__ ((packed)) ext;
|
|
};
|
|
} __attribute__ ((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 */,
|
|
};
|
|
|
|
/* 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,
|
|
};
|
|
|
|
|
|
/* A-MSDU 802.11n */
|
|
#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
|
|
|
|
/* cipher suite selectors */
|
|
#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
|
|
#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
|
|
#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
|
|
/* reserved: 0x000FAC03 */
|
|
#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
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#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
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#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
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|
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/* AKM suite selectors */
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#define WLAN_AKM_SUITE_8021X 0x000FAC01
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#define WLAN_AKM_SUITE_PSK 0x000FAC02
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#define WLAN_MAX_KEY_LEN 32
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|
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#define WLAN_PMKID_LEN 16
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|
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/**
|
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* ieee80211_get_qos_ctl - get pointer to qos control bytes
|
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* @hdr: the frame
|
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*
|
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* The qos ctrl bytes come after the frame_control, duration, seq_num
|
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* and 3 or 4 addresses of length ETH_ALEN.
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* 3 addr: 2 + 2 + 2 + 3*6 = 24
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* 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))
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|
return (u8 *)hdr + 30;
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else
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|
return (u8 *)hdr + 24;
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|
}
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|
|
|
/**
|
|
* 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_VENDOR_SPECIFIC;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* ieee80211_fhss_chan_to_freq - get channel frequency
|
|
* @channel: the FHSS channel
|
|
*
|
|
* Convert IEEE802.11 FHSS channel to frequency (MHz)
|
|
* Ref IEEE 802.11-2007 section 14.6
|
|
*/
|
|
static inline int ieee80211_fhss_chan_to_freq(int channel)
|
|
{
|
|
if ((channel > 1) && (channel < 96))
|
|
return channel + 2400;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* ieee80211_freq_to_fhss_chan - get channel
|
|
* @freq: the channels frequency
|
|
*
|
|
* Convert frequency (MHz) to IEEE802.11 FHSS channel
|
|
* Ref IEEE 802.11-2007 section 14.6
|
|
*/
|
|
static inline int ieee80211_freq_to_fhss_chan(int freq)
|
|
{
|
|
if ((freq > 2401) && (freq < 2496))
|
|
return freq - 2400;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* ieee80211_dsss_chan_to_freq - get channel center frequency
|
|
* @channel: the DSSS channel
|
|
*
|
|
* Convert IEEE802.11 DSSS channel to the center frequency (MHz).
|
|
* Ref IEEE 802.11-2007 section 15.6
|
|
*/
|
|
static inline int ieee80211_dsss_chan_to_freq(int channel)
|
|
{
|
|
if ((channel > 0) && (channel < 14))
|
|
return 2407 + (channel * 5);
|
|
else if (channel == 14)
|
|
return 2484;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* ieee80211_freq_to_dsss_chan - get channel
|
|
* @freq: the frequency
|
|
*
|
|
* Convert frequency (MHz) to IEEE802.11 DSSS channel
|
|
* Ref IEEE 802.11-2007 section 15.6
|
|
*
|
|
* This routine selects the channel with the closest center frequency.
|
|
*/
|
|
static inline int ieee80211_freq_to_dsss_chan(int freq)
|
|
{
|
|
if ((freq >= 2410) && (freq < 2475))
|
|
return (freq - 2405) / 5;
|
|
else if ((freq >= 2482) && (freq < 2487))
|
|
return 14;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
|
|
* Ref IEEE 802.11-2007 section 18.4.6.2
|
|
*
|
|
* The channels and frequencies are the same as those defined for DSSS
|
|
*/
|
|
#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
|
|
#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
|
|
|
|
/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
|
|
* Ref IEEE 802.11-2007 section 19.4.2
|
|
*/
|
|
#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
|
|
#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
|
|
|
|
/**
|
|
* ieee80211_ofdm_chan_to_freq - get channel center frequency
|
|
* @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
|
|
* @channel: the OFDM channel
|
|
*
|
|
* Convert IEEE802.11 OFDM channel to center frequency (MHz)
|
|
* Ref IEEE 802.11-2007 section 17.3.8.3.2
|
|
*/
|
|
static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
|
|
{
|
|
if ((channel > 0) && (channel <= 200) &&
|
|
(s_freq >= 4000))
|
|
return s_freq + (channel * 5);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* ieee80211_freq_to_ofdm_channel - get channel
|
|
* @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
|
|
* @freq: the frequency
|
|
*
|
|
* Convert frequency (MHz) to IEEE802.11 OFDM channel
|
|
* Ref IEEE 802.11-2007 section 17.3.8.3.2
|
|
*
|
|
* This routine selects the channel with the closest center frequency.
|
|
*/
|
|
static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
|
|
{
|
|
if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
|
|
(s_freq >= 4000))
|
|
return (freq + 2 - s_freq) / 5;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* 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(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);
|
|
}
|
|
|
|
#endif /* LINUX_IEEE80211_H */
|