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68e8e04e93
freebsd-dev/sys/net80211/ieee80211.h
Sam Leffler 68e8e04e93 Update 802.11 wireless support: 
o major overhaul of the way channels are handled: channels are now
  fully enumerated and uniquely identify the operating characteristics;
  these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
  background scanning and roaming
o move scanning support into loadable modules based on the operating
  mode to enable different policies and reduce the memory footprint
  on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
  mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
  we use a simple algorithm to trigger a roam: we threshold the rssi
  and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
  drivers but is incomplete; it's included now to establish a baseline
  for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
  prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
  encapsulation (note this can be used with any card that can tx+rx
  large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
  authentication and association failures
o enable the addition of sta mode power save support for drivers that need
  net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
  results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
  index into the rate set; this needs to be extended to deal with
  multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing

Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
       dynamic turbo (lightly tested), 11n (sniffing only and needs
       new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
       rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested

This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others.  Much of the scanning work was supported by
Atheros.  The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00

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/*-
* Copyright (c) 2001 Atsushi Onoe
* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NET80211_IEEE80211_H_
#define _NET80211_IEEE80211_H_
/*
* 802.11 protocol definitions.
*/
#define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */
/* is 802.11 address multicast/broadcast? */
#define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01)
/* IEEE 802.11 PLCP header */
struct ieee80211_plcp_hdr {
uint16_t i_sfd;
uint8_t i_signal;
uint8_t i_service;
uint16_t i_length;
uint16_t i_crc;
} __packed;
#define IEEE80211_PLCP_SFD 0xF3A0
#define IEEE80211_PLCP_SERVICE 0x00
/*
* generic definitions for IEEE 802.11 frames
*/
struct ieee80211_frame {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_addr1[IEEE80211_ADDR_LEN];
uint8_t i_addr2[IEEE80211_ADDR_LEN];
uint8_t i_addr3[IEEE80211_ADDR_LEN];
uint8_t i_seq[2];
/* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
/* see below */
} __packed;
struct ieee80211_qosframe {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_addr1[IEEE80211_ADDR_LEN];
uint8_t i_addr2[IEEE80211_ADDR_LEN];
uint8_t i_addr3[IEEE80211_ADDR_LEN];
uint8_t i_seq[2];
uint8_t i_qos[2];
/* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
/* see below */
} __packed;
struct ieee80211_qoscntl {
uint8_t i_qos[2];
};
struct ieee80211_frame_addr4 {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_addr1[IEEE80211_ADDR_LEN];
uint8_t i_addr2[IEEE80211_ADDR_LEN];
uint8_t i_addr3[IEEE80211_ADDR_LEN];
uint8_t i_seq[2];
uint8_t i_addr4[IEEE80211_ADDR_LEN];
} __packed;
struct ieee80211_qosframe_addr4 {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_addr1[IEEE80211_ADDR_LEN];
uint8_t i_addr2[IEEE80211_ADDR_LEN];
uint8_t i_addr3[IEEE80211_ADDR_LEN];
uint8_t i_seq[2];
uint8_t i_addr4[IEEE80211_ADDR_LEN];
uint8_t i_qos[2];
} __packed;
#define IEEE80211_FC0_VERSION_MASK 0x03
#define IEEE80211_FC0_VERSION_SHIFT 0
#define IEEE80211_FC0_VERSION_0 0x00
#define IEEE80211_FC0_TYPE_MASK 0x0c
#define IEEE80211_FC0_TYPE_SHIFT 2
#define IEEE80211_FC0_TYPE_MGT 0x00
#define IEEE80211_FC0_TYPE_CTL 0x04
#define IEEE80211_FC0_TYPE_DATA 0x08
#define IEEE80211_FC0_SUBTYPE_MASK 0xf0
#define IEEE80211_FC0_SUBTYPE_SHIFT 4
/* for TYPE_MGT */
#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00
#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10
#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20
#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30
#define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40
#define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50
#define IEEE80211_FC0_SUBTYPE_BEACON 0x80
#define IEEE80211_FC0_SUBTYPE_ATIM 0x90
#define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0
#define IEEE80211_FC0_SUBTYPE_AUTH 0xb0
#define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0
#define IEEE80211_FC0_SUBTYPE_ACTION 0xd0
/* for TYPE_CTL */
#define IEEE80211_FC0_SUBTYPE_BAR 0x80
#define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0
#define IEEE80211_FC0_SUBTYPE_RTS 0xb0
#define IEEE80211_FC0_SUBTYPE_CTS 0xc0
#define IEEE80211_FC0_SUBTYPE_ACK 0xd0
#define IEEE80211_FC0_SUBTYPE_CF_END 0xe0
#define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0
/* for TYPE_DATA (bit combination) */
#define IEEE80211_FC0_SUBTYPE_DATA 0x00
#define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10
#define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20
#define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30
#define IEEE80211_FC0_SUBTYPE_NODATA 0x40
#define IEEE80211_FC0_SUBTYPE_CFACK 0x50
#define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60
#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70
#define IEEE80211_FC0_SUBTYPE_QOS 0x80
#define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0
#define IEEE80211_FC1_DIR_MASK 0x03
#define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */
#define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */
#define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */
#define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */
#define IEEE80211_FC1_MORE_FRAG 0x04
#define IEEE80211_FC1_RETRY 0x08
#define IEEE80211_FC1_PWR_MGT 0x10
#define IEEE80211_FC1_MORE_DATA 0x20
#define IEEE80211_FC1_WEP 0x40
#define IEEE80211_FC1_ORDER 0x80
#define IEEE80211_SEQ_FRAG_MASK 0x000f
#define IEEE80211_SEQ_FRAG_SHIFT 0
#define IEEE80211_SEQ_SEQ_MASK 0xfff0
#define IEEE80211_SEQ_SEQ_SHIFT 4
#define IEEE80211_SEQ_RANGE 4096
#define IEEE80211_SEQ_ADD(seq, incr) \
(((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1))
#define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1)
#define IEEE80211_SEQ_SUB(a, b) \
(((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1))
#define IEEE80211_NWID_LEN 32
#define IEEE80211_QOS_TXOP 0x00ff
/* bit 8 is reserved */
#define IEEE80211_QOS_AMSDU 0x80
#define IEEE80211_QOS_AMSDU_S 7
#define IEEE80211_QOS_ACKPOLICY 0x60
#define IEEE80211_QOS_ACKPOLICY_S 5
#define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */
#define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */
#define IEEE80211_QOS_ESOP 0x10
#define IEEE80211_QOS_ESOP_S 4
#define IEEE80211_QOS_TID 0x0f
/* does frame have QoS sequence control data */
#define IEEE80211_QOS_HAS_SEQ(wh) \
(((wh)->i_fc[0] & \
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
(IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
/*
* WME/802.11e information element.
*/
struct ieee80211_wme_info {
uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */
uint8_t wme_len; /* length in bytes */
uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */
uint8_t wme_type; /* OUI type */
uint8_t wme_subtype; /* OUI subtype */
uint8_t wme_version; /* spec revision */
uint8_t wme_info; /* QoS info */
} __packed;
/*
* WME/802.11e Tspec Element
*/
struct ieee80211_wme_tspec {
uint8_t ts_id;
uint8_t ts_len;
uint8_t ts_oui[3];
uint8_t ts_oui_type;
uint8_t ts_oui_subtype;
uint8_t ts_version;
uint8_t ts_tsinfo[3];
uint8_t ts_nom_msdu[2];
uint8_t ts_max_msdu[2];
uint8_t ts_min_svc[4];
uint8_t ts_max_svc[4];
uint8_t ts_inactv_intv[4];
uint8_t ts_susp_intv[4];
uint8_t ts_start_svc[4];
uint8_t ts_min_rate[4];
uint8_t ts_mean_rate[4];
uint8_t ts_max_burst[4];
uint8_t ts_min_phy[4];
uint8_t ts_peak_rate[4];
uint8_t ts_delay[4];
uint8_t ts_surplus[2];
uint8_t ts_medium_time[2];
} __packed;
/*
* WME AC parameter field
*/
struct ieee80211_wme_acparams {
uint8_t acp_aci_aifsn;
uint8_t acp_logcwminmax;
uint16_t acp_txop;
} __packed;
#define WME_NUM_AC 4 /* 4 AC categories */
#define WME_NUM_TID 16 /* 16 tids */
#define WME_PARAM_ACI 0x60 /* Mask for ACI field */
#define WME_PARAM_ACI_S 5 /* Shift for ACI field */
#define WME_PARAM_ACM 0x10 /* Mask for ACM bit */
#define WME_PARAM_ACM_S 4 /* Shift for ACM bit */
#define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */
#define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */
#define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */
#define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */
#define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */
#define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */
#define WME_AC_TO_TID(_ac) ( \
((_ac) == WME_AC_VO) ? 6 : \
((_ac) == WME_AC_VI) ? 5 : \
((_ac) == WME_AC_BK) ? 1 : \
0)
#define TID_TO_WME_AC(_tid) ( \
((_tid) < 1) ? WME_AC_BE : \
((_tid) < 3) ? WME_AC_BK : \
((_tid) < 6) ? WME_AC_VI : \
WME_AC_VO)
/*
* WME Parameter Element
*/
struct ieee80211_wme_param {
uint8_t param_id;
uint8_t param_len;
uint8_t param_oui[3];
uint8_t param_oui_type;
uint8_t param_oui_sybtype;
uint8_t param_version;
uint8_t param_qosInfo;
#define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */
uint8_t param_reserved;
struct ieee80211_wme_acparams params_acParams[WME_NUM_AC];
} __packed;
/*
* Management Notification Frame
*/
struct ieee80211_mnf {
uint8_t mnf_category;
uint8_t mnf_action;
uint8_t mnf_dialog;
uint8_t mnf_status;
} __packed;
#define MNF_SETUP_REQ 0
#define MNF_SETUP_RESP 1
#define MNF_TEARDOWN 2
/*
* 802.11n Management Action Frames
*/
/* generic frame format */
struct ieee80211_action {
uint8_t ia_category;
uint8_t ia_action;
} __packed;
#define IEEE80211_ACTION_CAT_QOS 0 /* QoS */
#define IEEE80211_ACTION_CAT_BA 3 /* BA */
#define IEEE80211_ACTION_CAT_HT 5 /* HT */
#define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/
#define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */
/* HT - recommended transmission channel width */
struct ieee80211_action_ht_txchwidth {
struct ieee80211_action at_header;
uint8_t at_chwidth;
} __packed;
#define IEEE80211_A_HT_TXCHWIDTH_20 0
#define IEEE80211_A_HT_TXCHWIDTH_2040 1
/* HT - MIMO Power Save */
struct ieee80211_action_ht_mimopowersave {
struct ieee80211_action am_header;
uint8_t am_enable;
uint8_t am_mode;
} __packed;
/* Block Ack actions */
#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */
#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */
#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */
/* Block Ack Parameter Set */
#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */
#define IEEE80211_BAPS_BUFSIZ_S 6
#define IEEE80211_BAPS_TID 0x003c /* TID */
#define IEEE80211_BAPS_TID_S 2
#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */
#define IEEE80211_BAPS_POLICY_S 1
#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S)
#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S)
/* Block Ack Sequence Control */
#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */
#define IEEE80211_BASEQ_START_S 4
#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */
#define IEEE80211_BASEQ_FRAG_S 0
/* Delayed Block Ack Parameter Set */
#define IEEE80211_DELBAPS_TID 0xf000 /* TID */
#define IEEE80211_DELBAPS_TID_S 12
#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */
#define IEEE80211_DELBAPS_INIT_S 11
/* BA - ADDBA request */
struct ieee80211_action_ba_addbarequest {
struct ieee80211_action rq_header;
uint8_t rq_dialogtoken;
uint16_t rq_baparamset;
uint16_t rq_batimeout; /* in TUs */
uint16_t rq_baseqctl;
} __packed;
/* BA - ADDBA response */
struct ieee80211_action_ba_addbaresponse {
struct ieee80211_action rs_header;
uint8_t rs_dialogtoken;
uint16_t rs_statuscode;
uint16_t rs_baparamset;
uint16_t rs_batimeout; /* in TUs */
} __packed;
/* BA - DELBA */
struct ieee80211_action_ba_delba {
struct ieee80211_action dl_header;
uint16_t dl_baparamset;
uint16_t dl_reasoncode;
} __packed;
/* BAR Control */
#define IEEE80211_BAR_TID 0xf000 /* TID */
#define IEEE80211_BAR_TID_S 12
#define IEEE80211_BAR_COMP 0x0004 /* compressed */
#define IEEE80211_BAR_MTID 0x0002
#define IEEE80211_BAR_NOACK 0x0001 /* no-ack policy */
struct ieee80211_ba_request {
uint16_t rq_barctl;
uint16_t rq_barseqctl;
} __packed;
/*
* Control frames.
*/
struct ieee80211_frame_min {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_addr1[IEEE80211_ADDR_LEN];
uint8_t i_addr2[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_rts {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_ra[IEEE80211_ADDR_LEN];
uint8_t i_ta[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_cts {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_ra[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_ack {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_ra[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_pspoll {
uint8_t i_fc[2];
uint8_t i_aid[2];
uint8_t i_bssid[IEEE80211_ADDR_LEN];
uint8_t i_ta[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */
uint8_t i_fc[2];
uint8_t i_dur[2]; /* should be zero */
uint8_t i_ra[IEEE80211_ADDR_LEN];
uint8_t i_bssid[IEEE80211_ADDR_LEN];
/* FCS */
} __packed;
struct ieee80211_frame_bar {
uint8_t i_fc[2];
uint8_t i_dur[2];
uint8_t i_ra[IEEE80211_ADDR_LEN];
uint8_t i_ta[IEEE80211_ADDR_LEN];
uint16_t i_ctl;
uint16_t i_seq;
/* FCS */
} __packed;
/*
* BEACON management packets
*
* octet timestamp[8]
* octet beacon interval[2]
* octet capability information[2]
* information element
* octet elemid
* octet length
* octet information[length]
*/
typedef uint8_t *ieee80211_mgt_beacon_t;
#define IEEE80211_BEACON_INTERVAL(beacon) \
((beacon)[8] | ((beacon)[9] << 8))
#define IEEE80211_BEACON_CAPABILITY(beacon) \
((beacon)[10] | ((beacon)[11] << 8))
#define IEEE80211_CAPINFO_ESS 0x0001
#define IEEE80211_CAPINFO_IBSS 0x0002
#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004
#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008
#define IEEE80211_CAPINFO_PRIVACY 0x0010
#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020
#define IEEE80211_CAPINFO_PBCC 0x0040
#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080
/* bits 8-9 are reserved */
#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400
#define IEEE80211_CAPINFO_RSN 0x0800
/* bit 12 is reserved */
#define IEEE80211_CAPINFO_DSSSOFDM 0x2000
/* bits 14-15 are reserved */
/*
* 802.11i/WPA information element (maximally sized).
*/
struct ieee80211_ie_wpa {
uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */
uint8_t wpa_len; /* length in bytes */
uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */
uint8_t wpa_type; /* OUI type */
uint16_t wpa_version; /* spec revision */
uint32_t wpa_mcipher[1]; /* multicast/group key cipher */
uint16_t wpa_uciphercnt; /* # pairwise key ciphers */
uint32_t wpa_uciphers[8];/* ciphers */
uint16_t wpa_authselcnt; /* authentication selector cnt*/
uint32_t wpa_authsels[8];/* selectors */
uint16_t wpa_caps; /* 802.11i capabilities */
uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */
uint16_t wpa_pmkids[8]; /* 802.11i pmkids */
} __packed;
/*
* 802.11n HT Capability IE
* NB: these reflect D1.10
*/
struct ieee80211_ie_htcap {
uint8_t hc_id; /* element ID */
uint8_t hc_len; /* length in bytes */
uint16_t hc_cap; /* HT caps (see below) */
uint8_t hc_param; /* HT params (see below) */
uint8_t hc_mcsset[16]; /* supported MCS set */
uint16_t hc_extcap; /* extended HT capabilities */
uint32_t hc_txbf; /* txbf capabilities */
uint8_t hc_antenna; /* antenna capabilities */
} __packed;
/* HT capability flags (ht_cap) */
#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */
#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */
#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */
#define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */
#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */
/* NB: SMPS value 2 is reserved */
#define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */
#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */
#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */
#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */
#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */
#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */
#define IEEE80211_HTCAP_RXSTBC_S 8
#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */
#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/
#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/
#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */
#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */
#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */
#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */
#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */
#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */
#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */
#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */
/* HT parameters (hc_param) */
#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */
#define IEEE80211_HTCAP_MAXRXAMPDU_S 0
#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0x00
#define IEEE80211_HTCAP_MAXRXAMPDU_16K 0x01
#define IEEE80211_HTCAP_MAXRXAMPDU_32K 0x02
#define IEEE80211_HTCAP_MAXRXAMPDU_64K 0x03
#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */
#define IEEE80211_HTCAP_MPDUDENSITY_S 2
#define IEEE80211_HTCAP_MPDUDENSITY_NA 0x00 /* no time restriction */
#define IEEE80211_HTCAP_MPDUDENSITY_025 0x04 /* 1/4 us */
#define IEEE80211_HTCAP_MPDUDENSITY_05 0x08 /* 1/2 us */
#define IEEE80211_HTCAP_MPDUDENSITY_1 0x0c /* 1 us */
#define IEEE80211_HTCAP_MPDUDENSITY_2 0x10 /* 2 us */
#define IEEE80211_HTCAP_MPDUDENSITY_4 0x14 /* 4 us */
#define IEEE80211_HTCAP_MPDUDENSITY_8 0x18 /* 8 us */
#define IEEE80211_HTCAP_MPDUDENSITY_16 0x1c /* 16 us */
/* HT extended capabilities (hc_extcap) */
#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */
#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */
#define IEEE80211_HTCAP_PCOTRANS_S 1
#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */
#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */
#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */
/* bits 3-7 reserved */
#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */
#define IEEE80211_HTCAP_MCSFBACK_S 8
#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */
#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */
#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */
#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */
#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/
/* bits 12-15 reserved */
/*
* 802.11n HT Information IE
*/
struct ieee80211_ie_htinfo {
uint8_t hi_id; /* element ID */
uint8_t hi_len; /* length in bytes */
uint8_t hi_ctrlchannel; /* primary channel */
uint8_t hi_byte1; /* ht ie byte 1 */
uint16_t hi_byte23; /* ht ie bytes 2+3 */
uint16_t hi_byte45; /* ht ie bytes 4+5 */
uint8_t hi_basicmcsset[16]; /* basic MCS set */
} __packed;
/* byte1 */
#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */
#define IEEE80211_HTINFO_2NDCHAN_S 0
#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */
#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */
/* NB: 2 is reserved */
#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */
#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */
#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */
#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */
#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */
#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */
#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */
#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */
#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */
#define IEEE80211_HTINFO_SIGRAN_S 5
#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */
/* XXX add rest */
/* bytes 2+3 */
#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */
#define IEEE80211_HTINFO_OPMODE_S 0
#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */
#define IEEE80211_HTINFO_OPMODE_MIXED 0x01 /* protection required */
#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x02 /* protection optional */
#define IEEE80211_HTINFO_OPMODE_TBD 0x03
#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */
#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */
#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */
/* bits 5-15 reserved */
/* bytes 4+5 */
#define IEEE80211_HTINFO_2NDARYBEACON 0x01
#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02
#define IEEE80211_HTINFO_PCO_ACTIVE 0x04
#define IEEE80211_HTINFO_40MHZPHASE 0x08
/* byte5 */
#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f
#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0
#define IEEE80211_HTINFO_DUALPROTECTED 0x80
/*
* Management information element payloads.
*/
enum {
IEEE80211_ELEMID_SSID = 0,
IEEE80211_ELEMID_RATES = 1,
IEEE80211_ELEMID_FHPARMS = 2,
IEEE80211_ELEMID_DSPARMS = 3,
IEEE80211_ELEMID_CFPARMS = 4,
IEEE80211_ELEMID_TIM = 5,
IEEE80211_ELEMID_IBSSPARMS = 6,
IEEE80211_ELEMID_COUNTRY = 7,
IEEE80211_ELEMID_CHALLENGE = 16,
/* 17-31 reserved for challenge text extension */
IEEE80211_ELEMID_PWRCNSTR = 32,
IEEE80211_ELEMID_PWRCAP = 33,
IEEE80211_ELEMID_TPCREQ = 34,
IEEE80211_ELEMID_TPCREP = 35,
IEEE80211_ELEMID_SUPPCHAN = 36,
IEEE80211_ELEMID_CHANSWITCHANN = 37,
IEEE80211_ELEMID_MEASREQ = 38,
IEEE80211_ELEMID_MEASREP = 39,
IEEE80211_ELEMID_QUIET = 40,
IEEE80211_ELEMID_IBSSDFS = 41,
IEEE80211_ELEMID_ERP = 42,
IEEE80211_ELEMID_HTCAP = 45,
IEEE80211_ELEMID_RSN = 48,
IEEE80211_ELEMID_XRATES = 50,
IEEE80211_ELEMID_HTINFO = 61,
IEEE80211_ELEMID_TPC = 150,
IEEE80211_ELEMID_CCKM = 156,
IEEE80211_ELEMID_VENDOR = 221, /* vendor private */
};
struct ieee80211_tim_ie {
uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */
uint8_t tim_len;
uint8_t tim_count; /* DTIM count */
uint8_t tim_period; /* DTIM period */
uint8_t tim_bitctl; /* bitmap control */
uint8_t tim_bitmap[1]; /* variable-length bitmap */
} __packed;
struct ieee80211_country_ie {
uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */
uint8_t len;
uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */
struct {
uint8_t schan; /* starting channel */
uint8_t nchan; /* number channels */
uint8_t maxtxpwr; /* tx power cap */
} __packed band[4]; /* up to 4 sub bands */
} __packed;
/*
* Atheros advanced capability information element.
*/
struct ieee80211_ath_ie {
uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */
uint8_t ath_len; /* length in bytes */
uint8_t ath_oui[3]; /* 0x00, 0x03, 0x7f */
uint8_t ath_oui_type; /* OUI type */
uint8_t ath_oui_subtype; /* OUI subtype */
uint8_t ath_version; /* spec revision */
uint8_t ath_capability; /* capability info */
#define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */
#define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */
#define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */
#define ATHEROS_CAP_XR 0x08 /* Xtended Range support */
#define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */
#define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */
#define ATHEROS_CAP_WME 0x40 /* CWMin tuning */
#define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */
uint8_t ath_defkeyix[2];
} __packed;
#define IEEE80211_CHALLENGE_LEN 128
#define IEEE80211_RATE_BASIC 0x80
#define IEEE80211_RATE_VAL 0x7f
/* EPR information element flags */
#define IEEE80211_ERP_NON_ERP_PRESENT 0x01
#define IEEE80211_ERP_USE_PROTECTION 0x02
#define IEEE80211_ERP_LONG_PREAMBLE 0x04
#define ATH_OUI 0x7f0300 /* Atheros OUI */
#define ATH_OUI_TYPE 0x01
#define ATH_OUI_SUBTYPE 0x01
#define ATH_OUI_VERSION 0x00
#define BCM_OUI 0x4c9000 /* Broadcom OUI */
#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */
#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */
#define WPA_OUI 0xf25000
#define WPA_OUI_TYPE 0x01
#define WPA_VERSION 1 /* current supported version */
#define WPA_CSE_NULL 0x00
#define WPA_CSE_WEP40 0x01
#define WPA_CSE_TKIP 0x02
#define WPA_CSE_CCMP 0x04
#define WPA_CSE_WEP104 0x05
#define WPA_ASE_NONE 0x00
#define WPA_ASE_8021X_UNSPEC 0x01
#define WPA_ASE_8021X_PSK 0x02
#define RSN_OUI 0xac0f00
#define RSN_VERSION 1 /* current supported version */
#define RSN_CSE_NULL 0x00
#define RSN_CSE_WEP40 0x01
#define RSN_CSE_TKIP 0x02
#define RSN_CSE_WRAP 0x03
#define RSN_CSE_CCMP 0x04
#define RSN_CSE_WEP104 0x05
#define RSN_ASE_NONE 0x00
#define RSN_ASE_8021X_UNSPEC 0x01
#define RSN_ASE_8021X_PSK 0x02
#define RSN_CAP_PREAUTH 0x01
#define WME_OUI 0xf25000
#define WME_OUI_TYPE 0x02
#define WME_INFO_OUI_SUBTYPE 0x00
#define WME_PARAM_OUI_SUBTYPE 0x01
#define WME_VERSION 1
/* WME stream classes */
#define WME_AC_BE 0 /* best effort */
#define WME_AC_BK 1 /* background */
#define WME_AC_VI 2 /* video */
#define WME_AC_VO 3 /* voice */
/*
* AUTH management packets
*
* octet algo[2]
* octet seq[2]
* octet status[2]
* octet chal.id
* octet chal.length
* octet chal.text[253]
*/
typedef uint8_t *ieee80211_mgt_auth_t;
#define IEEE80211_AUTH_ALGORITHM(auth) \
((auth)[0] | ((auth)[1] << 8))
#define IEEE80211_AUTH_TRANSACTION(auth) \
((auth)[2] | ((auth)[3] << 8))
#define IEEE80211_AUTH_STATUS(auth) \
((auth)[4] | ((auth)[5] << 8))
#define IEEE80211_AUTH_ALG_OPEN 0x0000
#define IEEE80211_AUTH_ALG_SHARED 0x0001
#define IEEE80211_AUTH_ALG_LEAP 0x0080
enum {
IEEE80211_AUTH_OPEN_REQUEST = 1,
IEEE80211_AUTH_OPEN_RESPONSE = 2,
};
enum {
IEEE80211_AUTH_SHARED_REQUEST = 1,
IEEE80211_AUTH_SHARED_CHALLENGE = 2,
IEEE80211_AUTH_SHARED_RESPONSE = 3,
IEEE80211_AUTH_SHARED_PASS = 4,
};
/*
* Reason codes
*
* Unlisted codes are reserved
*/
enum {
IEEE80211_REASON_UNSPECIFIED = 1,
IEEE80211_REASON_AUTH_EXPIRE = 2,
IEEE80211_REASON_AUTH_LEAVE = 3,
IEEE80211_REASON_ASSOC_EXPIRE = 4,
IEEE80211_REASON_ASSOC_TOOMANY = 5,
IEEE80211_REASON_NOT_AUTHED = 6,
IEEE80211_REASON_NOT_ASSOCED = 7,
IEEE80211_REASON_ASSOC_LEAVE = 8,
IEEE80211_REASON_ASSOC_NOT_AUTHED = 9,
IEEE80211_REASON_RSN_REQUIRED = 11,
IEEE80211_REASON_RSN_INCONSISTENT = 12,
IEEE80211_REASON_IE_INVALID = 13,
IEEE80211_REASON_MIC_FAILURE = 14,
IEEE80211_STATUS_SUCCESS = 0,
IEEE80211_STATUS_UNSPECIFIED = 1,
IEEE80211_STATUS_CAPINFO = 10,
IEEE80211_STATUS_NOT_ASSOCED = 11,
IEEE80211_STATUS_OTHER = 12,
IEEE80211_STATUS_ALG = 13,
IEEE80211_STATUS_SEQUENCE = 14,
IEEE80211_STATUS_CHALLENGE = 15,
IEEE80211_STATUS_TIMEOUT = 16,
IEEE80211_STATUS_TOOMANY = 17,
IEEE80211_STATUS_BASIC_RATE = 18,
IEEE80211_STATUS_SP_REQUIRED = 19,
IEEE80211_STATUS_PBCC_REQUIRED = 20,
IEEE80211_STATUS_CA_REQUIRED = 21,
IEEE80211_STATUS_TOO_MANY_STATIONS = 22,
IEEE80211_STATUS_RATES = 23,
IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25,
IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26,
};
#define IEEE80211_WEP_KEYLEN 5 /* 40bit */
#define IEEE80211_WEP_IVLEN 3 /* 24bit */
#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */
#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */
#define IEEE80211_WEP_NKID 4 /* number of key ids */
/*
* 802.11i defines an extended IV for use with non-WEP ciphers.
* When the EXTIV bit is set in the key id byte an additional
* 4 bytes immediately follow the IV for TKIP. For CCMP the
* EXTIV bit is likewise set but the 8 bytes represent the
* CCMP header rather than IV+extended-IV.
*/
#define IEEE80211_WEP_EXTIV 0x20
#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */
#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */
#define IEEE80211_CRC_LEN 4
/*
* Maximum acceptable MTU is:
* IEEE80211_MAX_LEN - WEP overhead - CRC -
* QoS overhead - RSN/WPA overhead
* Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default
* mtu is Ethernet-compatible; it's set by ether_ifattach.
*/
#define IEEE80211_MTU_MAX 2290
#define IEEE80211_MTU_MIN 32
#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \
(IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
#define IEEE80211_ACK_LEN \
(sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
#define IEEE80211_MIN_LEN \
(sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
/*
* The 802.11 spec says at most 2007 stations may be
* associated at once. For most AP's this is way more
* than is feasible so we use a default of 128. This
* number may be overridden by the driver and/or by
* user configuration.
*/
#define IEEE80211_AID_MAX 2007
#define IEEE80211_AID_DEF 128
#define IEEE80211_AID(b) ((b) &~ 0xc000)
/*
* RTS frame length parameters. The default is specified in
* the 802.11 spec as 512; we treat it as implementation-dependent
* so it's defined in ieee80211_var.h. The max may be wrong
* for jumbo frames.
*/
#define IEEE80211_RTS_MIN 1
#define IEEE80211_RTS_MAX 2346
/*
* TX fragmentation parameters. As above for RTS, we treat
* default as implementation-dependent so define it elsewhere.
*/
#define IEEE80211_FRAG_MIN 256
#define IEEE80211_FRAG_MAX 2346
/*
* Beacon interval (TU's). Min+max come from WiFi requirements.
* As above, we treat default as implementation-dependent so
* define it elsewhere.
*/
#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */
#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */
/*
* DTIM period (beacons). Min+max are not really defined
* by the protocol but we want them publicly visible so
* define them here.
*/
#define IEEE80211_DTIM_MAX 15 /* max DTIM period */
#define IEEE80211_DTIM_MIN 1 /* min DTIM period */
/*
* Beacon miss threshold (beacons). As for DTIM, we define
* them here to be publicly visible. Note the max may be
* clamped depending on device capabilities.
*/
#define IEEE80211_HWBMISS_MIN 1
#define IEEE80211_HWBMISS_MAX 255
/*
* 802.11 frame duration definitions.
*/
struct ieee80211_duration {
uint16_t d_rts_dur;
uint16_t d_data_dur;
uint16_t d_plcp_len;
uint8_t d_residue; /* unused octets in time slot */
};
/* One Time Unit (TU) is 1Kus = 1024 microseconds. */
#define IEEE80211_DUR_TU 1024
/* IEEE 802.11b durations for DSSS PHY in microseconds */
#define IEEE80211_DUR_DS_LONG_PREAMBLE 144
#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48
#define IEEE80211_DUR_DS_FAST_PLCPHDR 24
#define IEEE80211_DUR_DS_SLOW_ACK 112
#define IEEE80211_DUR_DS_FAST_ACK 56
#define IEEE80211_DUR_DS_SLOW_CTS 112
#define IEEE80211_DUR_DS_FAST_CTS 56
#define IEEE80211_DUR_DS_SLOT 20
#define IEEE80211_DUR_DS_SIFS 10
#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \
2 * IEEE80211_DUR_DS_SLOT)
#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \
IEEE80211_DUR_DS_SLOW_ACK + \
IEEE80211_DUR_DS_LONG_PREAMBLE + \
IEEE80211_DUR_DS_SLOW_PLCPHDR + \
IEEE80211_DUR_DIFS)
/*
* Atheros fast-frame encapsulation format.
* FF max payload:
* 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500:
* 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500
* = 3066
*/
/* fast frame header is 32-bits */
#define ATH_FF_PROTO 0x0000003f /* protocol */
#define ATH_FF_PROTO_S 0
#define ATH_FF_FTYPE 0x000000c0 /* frame type */
#define ATH_FF_FTYPE_S 6
#define ATH_FF_HLEN32 0x00000300 /* optional hdr length */
#define ATH_FF_HLEN32_S 8
#define ATH_FF_SEQNUM 0x001ffc00 /* sequence number */
#define ATH_FF_SEQNUM_S 10
#define ATH_FF_OFFSET 0xffe00000 /* offset to 2nd payload */
#define ATH_FF_OFFSET_S 21
#define ATH_FF_MAX_HDR_PAD 4
#define ATH_FF_MAX_SEP_PAD 6
#define ATH_FF_MAX_HDR 30
#define ATH_FF_PROTO_L2TUNNEL 0 /* L2 tunnel protocol */
#define ATH_FF_ETH_TYPE 0x88bd /* Ether type for encapsulated frames */
#define ATH_FF_SNAP_ORGCODE_0 0x00
#define ATH_FF_SNAP_ORGCODE_1 0x03
#define ATH_FF_SNAP_ORGCODE_2 0x7f
#endif /* _NET80211_IEEE80211_H_ */
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