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 /*                    The Quest Operating System
  *  Copyright (C) 2005-2010  Richard West, Boston University
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /* Based on Linux */
 
 #ifndef __NET_CFG80211_H
 #define __NET_CFG80211_H
 /*
  * 802.11 device and configuration interface
  *
  * Copyright 2006-2009  Johannes Berg <johannes@sipsolutions.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
 
 #if 0
 #include <linux/netdevice.h>
 #include <linux/debugfs.h>
 #include <linux/list.h>
 #include <linux/netlink.h>
 #include <linux/skbuff.h>
 #include <linux/nl80211.h>
 #include <linux/if_ether.h>
 #include <linux/ieee80211.h>
 #include <net/regulatory.h>
 
 /* remove once we remove the wext stuff */
 #include <net/iw_handler.h>
 #include <linux/wireless.h>
 #endif
 
 #include <kernel.h>
 #include <drivers/net/ieee80211.h>
 #include <drivers/net/ethernet.h>
 
 #if 0
 
 /*
  * wireless hardware capability structures
  */
 
 /**
  * enum ieee80211_band - supported frequency bands
  *
  * The bands are assigned this way because the supported
  * bitrates differ in these bands.
  *
  * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
  * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
  */
 enum ieee80211_band {
         IEEE80211_BAND_2GHZ,
         IEEE80211_BAND_5GHZ,
 
         /* keep last */
         IEEE80211_NUM_BANDS
 };
 
 /**
  * enum ieee80211_channel_flags - channel flags
  *
  * Channel flags set by the regulatory control code.
  *
  * @IEEE80211_CHAN_DISABLED: This channel is disabled.
  * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
  *      on this channel.
  * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
  * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
  * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
  *      is not permitted.
  * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
  *      is not permitted.
  */
 enum ieee80211_channel_flags {
         IEEE80211_CHAN_DISABLED         = 1<<0,
         IEEE80211_CHAN_PASSIVE_SCAN     = 1<<1,
         IEEE80211_CHAN_NO_IBSS          = 1<<2,
         IEEE80211_CHAN_RADAR            = 1<<3,
         IEEE80211_CHAN_NO_HT40PLUS      = 1<<4,
         IEEE80211_CHAN_NO_HT40MINUS     = 1<<5,
 };
 
 #define IEEE80211_CHAN_NO_HT40 \
         (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 
 /**
  * struct ieee80211_channel - channel definition
  *
  * This structure describes a single channel for use
  * with cfg80211.
  *
  * @center_freq: center frequency in MHz
  * @hw_value: hardware-specific value for the channel
  * @flags: channel flags from &enum ieee80211_channel_flags.
  * @orig_flags: channel flags at registration time, used by regulatory
  *      code to support devices with additional restrictions
  * @band: band this channel belongs to.
  * @max_antenna_gain: maximum antenna gain in dBi
  * @max_power: maximum transmission power (in dBm)
  * @beacon_found: helper to regulatory code to indicate when a beacon
  *      has been found on this channel. Use regulatory_hint_found_beacon()
  *      to enable this, this is is useful only on 5 GHz band.
  * @orig_mag: internal use
  * @orig_mpwr: internal use
  */
 struct ieee80211_channel {
         enum ieee80211_band band;
         u16 center_freq;
         u16 hw_value;
         u32 flags;
         int max_antenna_gain;
         int max_power;
         bool beacon_found;
         u32 orig_flags;
         int orig_mag, orig_mpwr;
 };
 
 /**
  * enum ieee80211_rate_flags - rate flags
  *
  * Hardware/specification flags for rates. These are structured
  * in a way that allows using the same bitrate structure for
  * different bands/PHY modes.
  *
  * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
  *      preamble on this bitrate; only relevant in 2.4GHz band and
  *      with CCK rates.
  * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
  *      when used with 802.11a (on the 5 GHz band); filled by the
  *      core code when registering the wiphy.
  * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
  *      when used with 802.11b (on the 2.4 GHz band); filled by the
  *      core code when registering the wiphy.
  * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
  *      when used with 802.11g (on the 2.4 GHz band); filled by the
  *      core code when registering the wiphy.
  * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
  */
 enum ieee80211_rate_flags {
         IEEE80211_RATE_SHORT_PREAMBLE   = 1<<0,
         IEEE80211_RATE_MANDATORY_A      = 1<<1,
         IEEE80211_RATE_MANDATORY_B      = 1<<2,
         IEEE80211_RATE_MANDATORY_G      = 1<<3,
         IEEE80211_RATE_ERP_G            = 1<<4,
 };
 
 /**
  * struct ieee80211_rate - bitrate definition
  *
  * This structure describes a bitrate that an 802.11 PHY can
  * operate with. The two values @hw_value and @hw_value_short
  * are only for driver use when pointers to this structure are
  * passed around.
  *
  * @flags: rate-specific flags
  * @bitrate: bitrate in units of 100 Kbps
  * @hw_value: driver/hardware value for this rate
  * @hw_value_short: driver/hardware value for this rate when
  *      short preamble is used
  */
 struct ieee80211_rate {
         u32 flags;
         u16 bitrate;
         u16 hw_value, hw_value_short;
 };
 
 /**
  * struct ieee80211_sta_ht_cap - STA's HT capabilities
  *
  * This structure describes most essential parameters needed
  * to describe 802.11n HT capabilities for an STA.
  *
  * @ht_supported: is HT supported by the STA
  * @cap: HT capabilities map as described in 802.11n spec
  * @ampdu_factor: Maximum A-MPDU length factor
  * @ampdu_density: Minimum A-MPDU spacing
  * @mcs: Supported MCS rates
  */
 struct ieee80211_sta_ht_cap {
         u16 cap; /* use IEEE80211_HT_CAP_ */
         bool ht_supported;
         u8 ampdu_factor;
         u8 ampdu_density;
   //struct ieee80211_mcs_info mcs;
 };
 
 /**
  * struct ieee80211_supported_band - frequency band definition
  *
  * This structure describes a frequency band a wiphy
  * is able to operate in.
  *
  * @channels: Array of channels the hardware can operate in
  *      in this band.
  * @band: the band this structure represents
  * @n_channels: Number of channels in @channels
  * @bitrates: Array of bitrates the hardware can operate with
  *      in this band. Must be sorted to give a valid "supported
  *      rates" IE, i.e. CCK rates first, then OFDM.
  * @n_bitrates: Number of bitrates in @bitrates
  */
 struct ieee80211_supported_band {
         struct ieee80211_channel *channels;
         struct ieee80211_rate *bitrates;
         enum ieee80211_band band;
         int n_channels;
         int n_bitrates;
         struct ieee80211_sta_ht_cap ht_cap;
 };
 
 /*
  * Wireless hardware/device configuration structures and methods
  */
 
 /**
  * struct vif_params - describes virtual interface parameters
  * @mesh_id: mesh ID to use
  * @mesh_id_len: length of the mesh ID
  */
 struct vif_params {
        u8 *mesh_id;
        int mesh_id_len;
 };
 
 /**
  * struct key_params - key information
  *
  * Information about a key
  *
  * @key: key material
  * @key_len: length of key material
  * @cipher: cipher suite selector
  * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
  *      with the get_key() callback, must be in little endian,
  *      length given by @seq_len.
  */
 struct key_params {
         u8 *key;
         u8 *seq;
         int key_len;
         int seq_len;
         u32 cipher;
 };
 
 /**
  * struct beacon_parameters - beacon parameters
  *
  * Used to configure the beacon for an interface.
  *
  * @head: head portion of beacon (before TIM IE)
  *     or %NULL if not changed
  * @tail: tail portion of beacon (after TIM IE)
  *     or %NULL if not changed
  * @interval: beacon interval or zero if not changed
  * @dtim_period: DTIM period or zero if not changed
  * @head_len: length of @head
  * @tail_len: length of @tail
  */
 struct beacon_parameters {
         u8 *head, *tail;
         int interval, dtim_period;
         int head_len, tail_len;
 };
 
 /**
  * enum plink_action - actions to perform in mesh peers
  *
  * @PLINK_ACTION_INVALID: action 0 is reserved
  * @PLINK_ACTION_OPEN: start mesh peer link establishment
  * @PLINK_ACTION_BLOCL: block traffic from this mesh peer
  */
 enum plink_actions {
         PLINK_ACTION_INVALID,
         PLINK_ACTION_OPEN,
         PLINK_ACTION_BLOCK,
 };
 
 /**
  * struct station_parameters - station parameters
  *
  * Used to change and create a new station.
  *
  * @vlan: vlan interface station should belong to
  * @supported_rates: supported rates in IEEE 802.11 format
  *      (or NULL for no change)
  * @supported_rates_len: number of supported rates
  * @sta_flags_mask: station flags that changed
  *      (bitmask of BIT(NL80211_STA_FLAG_...))
  * @sta_flags_set: station flags values
  *      (bitmask of BIT(NL80211_STA_FLAG_...))
  * @listen_interval: listen interval or -1 for no change
  * @aid: AID or zero for no change
  */
 struct station_parameters {
         u8 *supported_rates;
         struct net_device *vlan;
         u32 sta_flags_mask, sta_flags_set;
         int listen_interval;
         u16 aid;
         u8 supported_rates_len;
         u8 plink_action;
         struct ieee80211_ht_cap *ht_capa;
 };
 
 /**
  * enum station_info_flags - station information flags
  *
  * Used by the driver to indicate which info in &struct station_info
  * it has filled in during get_station() or dump_station().
  *
  * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
  * @STATION_INFO_RX_BYTES: @rx_bytes filled
  * @STATION_INFO_TX_BYTES: @tx_bytes filled
  * @STATION_INFO_LLID: @llid filled
  * @STATION_INFO_PLID: @plid filled
  * @STATION_INFO_PLINK_STATE: @plink_state filled
  * @STATION_INFO_SIGNAL: @signal filled
  * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
  *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
  * @STATION_INFO_RX_PACKETS: @rx_packets filled
  * @STATION_INFO_TX_PACKETS: @tx_packets filled
  */
 enum station_info_flags {
         STATION_INFO_INACTIVE_TIME      = 1<<0,
         STATION_INFO_RX_BYTES           = 1<<1,
         STATION_INFO_TX_BYTES           = 1<<2,
         STATION_INFO_LLID               = 1<<3,
         STATION_INFO_PLID               = 1<<4,
         STATION_INFO_PLINK_STATE        = 1<<5,
         STATION_INFO_SIGNAL             = 1<<6,
         STATION_INFO_TX_BITRATE         = 1<<7,
         STATION_INFO_RX_PACKETS         = 1<<8,
         STATION_INFO_TX_PACKETS         = 1<<9,
 };
 
 /**
  * enum station_info_rate_flags - bitrate info flags
  *
  * Used by the driver to indicate the specific rate transmission
  * type for 802.11n transmissions.
  *
  * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
  * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
  * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
  */
 enum rate_info_flags {
         RATE_INFO_FLAGS_MCS             = 1<<0,
         RATE_INFO_FLAGS_40_MHZ_WIDTH    = 1<<1,
         RATE_INFO_FLAGS_SHORT_GI        = 1<<2,
 };
 
 /**
  * struct rate_info - bitrate information
  *
  * Information about a receiving or transmitting bitrate
  *
  * @flags: bitflag of flags from &enum rate_info_flags
  * @mcs: mcs index if struct describes a 802.11n bitrate
  * @legacy: bitrate in 100kbit/s for 802.11abg
  */
 struct rate_info {
         u8 flags;
         u8 mcs;
         u16 legacy;
 };
 
 /**
  * struct station_info - station information
  *
  * Station information filled by driver for get_station() and dump_station.
  *
  * @filled: bitflag of flags from &enum station_info_flags
  * @inactive_time: time since last station activity (tx/rx) in milliseconds
  * @rx_bytes: bytes received from this station
  * @tx_bytes: bytes transmitted to this station
  * @llid: mesh local link id
  * @plid: mesh peer link id
  * @plink_state: mesh peer link state
  * @signal: signal strength of last received packet in dBm
  * @txrate: current unicast bitrate to this station
  * @rx_packets: packets received from this station
  * @tx_packets: packets transmitted to this station
  * @generation: generation number for nl80211 dumps.
  *      This number should increase every time the list of stations
  *      changes, i.e. when a station is added or removed, so that
  *      userspace can tell whether it got a consistent snapshot.
  */
 struct station_info {
         u32 filled;
         u32 inactive_time;
         u32 rx_bytes;
         u32 tx_bytes;
         u16 llid;
         u16 plid;
         u8 plink_state;
         s8 signal;
         struct rate_info txrate;
         u32 rx_packets;
         u32 tx_packets;
 
         int generation;
 };
 
 /**
  * enum monitor_flags - monitor flags
  *
  * Monitor interface configuration flags. Note that these must be the bits
  * according to the nl80211 flags.
  *
  * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
  * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
  * @MONITOR_FLAG_CONTROL: pass control frames
  * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
  * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
  */
 enum monitor_flags {
         MONITOR_FLAG_FCSFAIL            = 1<<NL80211_MNTR_FLAG_FCSFAIL,
         MONITOR_FLAG_PLCPFAIL           = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
         MONITOR_FLAG_CONTROL            = 1<<NL80211_MNTR_FLAG_CONTROL,
         MONITOR_FLAG_OTHER_BSS          = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
         MONITOR_FLAG_COOK_FRAMES        = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
 };
 
 /**
  * enum mpath_info_flags -  mesh path information flags
  *
  * Used by the driver to indicate which info in &struct mpath_info it has filled
  * in during get_station() or dump_station().
  *
  * MPATH_INFO_FRAME_QLEN: @frame_qlen filled
  * MPATH_INFO_DSN: @dsn filled
  * MPATH_INFO_METRIC: @metric filled
  * MPATH_INFO_EXPTIME: @exptime filled
  * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
  * MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
  * MPATH_INFO_FLAGS: @flags filled
  */
 enum mpath_info_flags {
         MPATH_INFO_FRAME_QLEN           = BIT(0),
         MPATH_INFO_DSN                  = BIT(1),
         MPATH_INFO_METRIC               = BIT(2),
         MPATH_INFO_EXPTIME              = BIT(3),
         MPATH_INFO_DISCOVERY_TIMEOUT    = BIT(4),
         MPATH_INFO_DISCOVERY_RETRIES    = BIT(5),
         MPATH_INFO_FLAGS                = BIT(6),
 };
 
 /**
  * struct mpath_info - mesh path information
  *
  * Mesh path information filled by driver for get_mpath() and dump_mpath().
  *
  * @filled: bitfield of flags from &enum mpath_info_flags
  * @frame_qlen: number of queued frames for this destination
  * @dsn: destination sequence number
  * @metric: metric (cost) of this mesh path
  * @exptime: expiration time for the mesh path from now, in msecs
  * @flags: mesh path flags
  * @discovery_timeout: total mesh path discovery timeout, in msecs
  * @discovery_retries: mesh path discovery retries
  * @generation: generation number for nl80211 dumps.
  *      This number should increase every time the list of mesh paths
  *      changes, i.e. when a station is added or removed, so that
  *      userspace can tell whether it got a consistent snapshot.
  */
 struct mpath_info {
         u32 filled;
         u32 frame_qlen;
         u32 dsn;
         u32 metric;
         u32 exptime;
         u32 discovery_timeout;
         u8 discovery_retries;
         u8 flags;
 
         int generation;
 };
 
 /**
  * struct bss_parameters - BSS parameters
  *
  * Used to change BSS parameters (mainly for AP mode).
  *
  * @use_cts_prot: Whether to use CTS protection
  *      (0 = no, 1 = yes, -1 = do not change)
  * @use_short_preamble: Whether the use of short preambles is allowed
  *      (0 = no, 1 = yes, -1 = do not change)
  * @use_short_slot_time: Whether the use of short slot time is allowed
  *      (0 = no, 1 = yes, -1 = do not change)
  * @basic_rates: basic rates in IEEE 802.11 format
  *      (or NULL for no change)
  * @basic_rates_len: number of basic rates
  */
 struct bss_parameters {
         int use_cts_prot;
         int use_short_preamble;
         int use_short_slot_time;
         u8 *basic_rates;
         u8 basic_rates_len;
 };
 
 struct mesh_config {
         /* Timeouts in ms */
         /* Mesh plink management parameters */
         u16 dot11MeshRetryTimeout;
         u16 dot11MeshConfirmTimeout;
         u16 dot11MeshHoldingTimeout;
         u16 dot11MeshMaxPeerLinks;
         u8  dot11MeshMaxRetries;
         u8  dot11MeshTTL;
         bool auto_open_plinks;
         /* HWMP parameters */
         u8  dot11MeshHWMPmaxPREQretries;
         u32 path_refresh_time;
         u16 min_discovery_timeout;
         u32 dot11MeshHWMPactivePathTimeout;
         u16 dot11MeshHWMPpreqMinInterval;
         u16 dot11MeshHWMPnetDiameterTraversalTime;
 };
 
 /**
  * struct ieee80211_txq_params - TX queue parameters
  * @queue: TX queue identifier (NL80211_TXQ_Q_*)
  * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
  * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
  *      1..32767]
  * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
  *      1..32767]
  * @aifs: Arbitration interframe space [0..255]
  */
 struct ieee80211_txq_params {
         enum nl80211_txq_q queue;
         u16 txop;
         u16 cwmin;
         u16 cwmax;
         u8 aifs;
 };
 
 /* from net/wireless.h */
 struct wiphy;
 
 /* from net/ieee80211.h */
 struct ieee80211_channel;
 
 /**
  * struct cfg80211_ssid - SSID description
  * @ssid: the SSID
  * @ssid_len: length of the ssid
  */
 struct cfg80211_ssid {
         u8 ssid[IEEE80211_MAX_SSID_LEN];
         u8 ssid_len;
 };
 
 /**
  * struct cfg80211_scan_request - scan request description
  *
  * @ssids: SSIDs to scan for (active scan only)
  * @n_ssids: number of SSIDs
  * @channels: channels to scan on.
  * @n_channels: total number of channels to scan
  * @ie: optional information element(s) to add into Probe Request or %NULL
  * @ie_len: length of ie in octets
  * @wiphy: the wiphy this was for
  * @dev: the interface
  */
 struct cfg80211_scan_request {
         struct cfg80211_ssid *ssids;
         int n_ssids;
         u32 n_channels;
         const u8 *ie;
         size_t ie_len;
 
         /* internal */
         struct wiphy *wiphy;
         struct net_device *dev;
         bool aborted;
 
         /* keep last */
         struct ieee80211_channel *channels[0];
 };
 
 #endif
 
 /**
  * enum cfg80211_signal_type - signal type
  *
  * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
  * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
  * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
  */
 enum cfg80211_signal_type {
         CFG80211_SIGNAL_TYPE_NONE,
         CFG80211_SIGNAL_TYPE_MBM,
         CFG80211_SIGNAL_TYPE_UNSPEC,
 };
 
 #if 0
 
 /**
  * struct cfg80211_bss - BSS description
  *
  * This structure describes a BSS (which may also be a mesh network)
  * for use in scan results and similar.
  *
  * @bssid: BSSID of the BSS
  * @tsf: timestamp of last received update
  * @beacon_interval: the beacon interval as from the frame
  * @capability: the capability field in host byte order
  * @information_elements: the information elements (Note that there
  *      is no guarantee that these are well-formed!)
  * @len_information_elements: total length of the information elements
  * @signal: signal strength value (type depends on the wiphy's signal_type)
  * @free_priv: function pointer to free private data
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
 struct cfg80211_bss {
         struct ieee80211_channel *channel;
 
         u8 bssid[ETH_ALEN];
         u64 tsf;
         u16 beacon_interval;
         u16 capability;
         u8 *information_elements;
         size_t len_information_elements;
 
         s32 signal;
 
         void (*free_priv)(struct cfg80211_bss *bss);
         u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
 };
 
 /**
  * ieee80211_bss_get_ie - find IE with given ID
  * @bss: the bss to search
  * @ie: the IE ID
  * Returns %NULL if not found.
  */
 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
 
 
 /**
  * struct cfg80211_crypto_settings - Crypto settings
  * @wpa_versions: indicates which, if any, WPA versions are enabled
  *      (from enum nl80211_wpa_versions)
  * @cipher_group: group key cipher suite (or 0 if unset)
  * @n_ciphers_pairwise: number of AP supported unicast ciphers
  * @ciphers_pairwise: unicast key cipher suites
  * @n_akm_suites: number of AKM suites
  * @akm_suites: AKM suites
  * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
  *      sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
  *      required to assume that the port is unauthorized until authorized by
  *      user space. Otherwise, port is marked authorized by default.
  */
 struct cfg80211_crypto_settings {
         u32 wpa_versions;
         u32 cipher_group;
         int n_ciphers_pairwise;
         u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
         int n_akm_suites;
         u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
         bool control_port;
 };
 
 /**
  * struct cfg80211_auth_request - Authentication request data
  *
  * This structure provides information needed to complete IEEE 802.11
  * authentication.
  *
  * @bss: The BSS to authenticate with.
  * @auth_type: Authentication type (algorithm)
  * @ie: Extra IEs to add to Authentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @key_len: length of WEP key for shared key authentication
  * @key_idx: index of WEP key for shared key authentication
  * @key: WEP key for shared key authentication
  */
 struct cfg80211_auth_request {
         struct cfg80211_bss *bss;
         const u8 *ie;
         size_t ie_len;
         enum nl80211_auth_type auth_type;
         const u8 *key;
         u8 key_len, key_idx;
 };
 
 /**
  * struct cfg80211_assoc_request - (Re)Association request data
  *
  * This structure provides information needed to complete IEEE 802.11
  * (re)association.
  * @bss: The BSS to associate with.
  * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
  * @crypto: crypto settings
  * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
  */
 struct cfg80211_assoc_request {
         struct cfg80211_bss *bss;
         const u8 *ie, *prev_bssid;
         size_t ie_len;
         struct cfg80211_crypto_settings crypto;
         bool use_mfp;
 };
 
 /**
  * struct cfg80211_deauth_request - Deauthentication request data
  *
  * This structure provides information needed to complete IEEE 802.11
  * deauthentication.
  *
  * @bss: the BSS to deauthenticate from
  * @ie: Extra IEs to add to Deauthentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @reason_code: The reason code for the deauthentication
  */
 struct cfg80211_deauth_request {
         struct cfg80211_bss *bss;
         const u8 *ie;
         size_t ie_len;
         u16 reason_code;
 };
 
 /**
  * struct cfg80211_disassoc_request - Disassociation request data
  *
  * This structure provides information needed to complete IEEE 802.11
  * disassocation.
  *
  * @bss: the BSS to disassociate from
  * @ie: Extra IEs to add to Disassociation frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @reason_code: The reason code for the disassociation
  */
 struct cfg80211_disassoc_request {
         struct cfg80211_bss *bss;
         const u8 *ie;
         size_t ie_len;
         u16 reason_code;
 };
 
 /**
  * struct cfg80211_ibss_params - IBSS parameters
  *
  * This structure defines the IBSS parameters for the join_ibss()
  * method.
  *
  * @ssid: The SSID, will always be non-null.
  * @ssid_len: The length of the SSID, will always be non-zero.
  * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
  *      search for IBSSs with a different BSSID.
  * @channel: The channel to use if no IBSS can be found to join.
  * @channel_fixed: The channel should be fixed -- do not search for
  *      IBSSs to join on other channels.
  * @ie: information element(s) to include in the beacon
  * @ie_len: length of that
  * @beacon_interval: beacon interval to use
  * @privacy: this is a protected network, keys will be configured
  *      after joining
  */
 struct cfg80211_ibss_params {
         u8 *ssid;
         u8 *bssid;
         struct ieee80211_channel *channel;
         u8 *ie;
         u8 ssid_len, ie_len;
         u16 beacon_interval;
         bool channel_fixed;
         bool privacy;
 };
 
 /**
  * struct cfg80211_connect_params - Connection parameters
  *
  * This structure provides information needed to complete IEEE 802.11
  * authentication and association.
  *
  * @channel: The channel to use or %NULL if not specified (auto-select based
  *      on scan results)
  * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
  *      results)
  * @ssid: SSID
  * @ssid_len: Length of ssid in octets
  * @auth_type: Authentication type (algorithm)
  * @assoc_ie: IEs for association request
  * @assoc_ie_len: Length of assoc_ie in octets
  * @privacy: indicates whether privacy-enabled APs should be used
  * @crypto: crypto settings
  * @key_len: length of WEP key for shared key authentication
  * @key_idx: index of WEP key for shared key authentication
  * @key: WEP key for shared key authentication
  */
 struct cfg80211_connect_params {
         struct ieee80211_channel *channel;
         u8 *bssid;
         u8 *ssid;
         size_t ssid_len;
         enum nl80211_auth_type auth_type;
         u8 *ie;
         size_t ie_len;
         bool privacy;
         struct cfg80211_crypto_settings crypto;
         const u8 *key;
         u8 key_len, key_idx;
 };
 
 /**
  * enum wiphy_params_flags - set_wiphy_params bitfield values
  * WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
  * WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
  * WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
  * WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
  */
 enum wiphy_params_flags {
         WIPHY_PARAM_RETRY_SHORT         = 1 << 0,
         WIPHY_PARAM_RETRY_LONG          = 1 << 1,
         WIPHY_PARAM_FRAG_THRESHOLD      = 1 << 2,
         WIPHY_PARAM_RTS_THRESHOLD       = 1 << 3,
 };
 
 /**
  * enum tx_power_setting - TX power adjustment
  *
  * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
  * @TX_POWER_LIMITED: limit TX power by the dbm parameter
  * @TX_POWER_FIXED: fix TX power to the dbm parameter
  */
 enum tx_power_setting {
         TX_POWER_AUTOMATIC,
         TX_POWER_LIMITED,
         TX_POWER_FIXED,
 };
 
 /*
  * cfg80211_bitrate_mask - masks for bitrate control
  */
 struct cfg80211_bitrate_mask {
 /*
  * As discussed in Berlin, this struct really
  * should look like this:
 
         struct {
                 u32 legacy;
                 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
         } control[IEEE80211_NUM_BANDS];
 
  * Since we can always fix in-kernel users, let's keep
  * it simpler for now:
  */
         u32 fixed;   /* fixed bitrate, 0 == not fixed */
         u32 maxrate; /* in kbps, 0 == no limit */
 };
 
 /**
  * struct cfg80211_ops - backend description for wireless configuration
  *
  * This struct is registered by fullmac card drivers and/or wireless stacks
  * in order to handle configuration requests on their interfaces.
  *
  * All callbacks except where otherwise noted should return 0
  * on success or a negative error code.
  *
  * All operations are currently invoked under rtnl for consistency with the
  * wireless extensions but this is subject to reevaluation as soon as this
  * code is used more widely and we have a first user without wext.
  *
  * @suspend: wiphy device needs to be suspended
  * @resume: wiphy device needs to be resumed
  *
  * @add_virtual_intf: create a new virtual interface with the given name,
  *      must set the struct wireless_dev's iftype. Beware: You must create
  *      the new netdev in the wiphy's network namespace!
  *
  * @del_virtual_intf: remove the virtual interface determined by ifindex.
  *
  * @change_virtual_intf: change type/configuration of virtual interface,
  *      keep the struct wireless_dev's iftype updated.
  *
  * @add_key: add a key with the given parameters. @mac_addr will be %NULL
  *      when adding a group key.
  *
  * @get_key: get information about the key with the given parameters.
  *      @mac_addr will be %NULL when requesting information for a group
  *      key. All pointers given to the @callback function need not be valid
  *      after it returns. This function should return an error if it is
  *      not possible to retrieve the key, -ENOENT if it doesn't exist.
  *
  * @del_key: remove a key given the @mac_addr (%NULL for a group key)
  *      and @key_index, return -ENOENT if the key doesn't exist.
  *
  * @set_default_key: set the default key on an interface
  *
  * @set_default_mgmt_key: set the default management frame key on an interface
  *
  * @add_beacon: Add a beacon with given parameters, @head, @interval
  *      and @dtim_period will be valid, @tail is optional.
  * @set_beacon: Change the beacon parameters for an access point mode
  *      interface. This should reject the call when no beacon has been
  *      configured.
  * @del_beacon: Remove beacon configuration and stop sending the beacon.
  *
  * @add_station: Add a new station.
  *
  * @del_station: Remove a station; @mac may be NULL to remove all stations.
  *
  * @change_station: Modify a given station.
  *
  * @get_mesh_params: Put the current mesh parameters into *params
  *
  * @set_mesh_params: Set mesh parameters.
  *      The mask is a bitfield which tells us which parameters to
  *      set, and which to leave alone.
  *
  * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
  *
  * @change_bss: Modify parameters for a given BSS.
  *
  * @set_txq_params: Set TX queue parameters
  *
  * @set_channel: Set channel
  *
  * @scan: Request to do a scan. If returning zero, the scan request is given
  *      the driver, and will be valid until passed to cfg80211_scan_done().
  *      For scan results, call cfg80211_inform_bss(); you can call this outside
  *      the scan/scan_done bracket too.
  *
  * @auth: Request to authenticate with the specified peer
  * @assoc: Request to (re)associate with the specified peer
  * @deauth: Request to deauthenticate from the specified peer
  * @disassoc: Request to disassociate from the specified peer
  *
  * @connect: Connect to the ESS with the specified parameters. When connected,
  *      call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
  *      If the connection fails for some reason, call cfg80211_connect_result()
  *      with the status from the AP.
  * @disconnect: Disconnect from the BSS/ESS.
  *
  * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
  *      cfg80211_ibss_joined(), also call that function when changing BSSID due
  *      to a merge.
  * @leave_ibss: Leave the IBSS.
  *
  * @set_wiphy_params: Notify that wiphy parameters have changed;
  *      @changed bitfield (see &enum wiphy_params_flags) describes which values
  *      have changed. The actual parameter values are available in
  *      struct wiphy. If returning an error, no value should be changed.
  *
  * @set_tx_power: set the transmit power according to the parameters
  * @get_tx_power: store the current TX power into the dbm variable;
  *      return 0 if successful
  *
  * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
  *      functions to adjust rfkill hw state
  *
  * @testmode_cmd: run a test mode command
  */
 struct cfg80211_ops {
         int     (*suspend)(struct wiphy *wiphy);
         int     (*resume)(struct wiphy *wiphy);
 
         int     (*add_virtual_intf)(struct wiphy *wiphy, char *name,
                                     enum nl80211_iftype type, u32 *flags,
                                     struct vif_params *params);
         int     (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
         int     (*change_virtual_intf)(struct wiphy *wiphy,
                                        struct net_device *dev,
                                        enum nl80211_iftype type, u32 *flags,
                                        struct vif_params *params);
 
         int     (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
                            u8 key_index, const u8 *mac_addr,
                            struct key_params *params);
         int     (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
                            u8 key_index, const u8 *mac_addr, void *cookie,
                            void (*callback)(void *cookie, struct key_params*));
         int     (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
                            u8 key_index, const u8 *mac_addr);
         int     (*set_default_key)(struct wiphy *wiphy,
                                    struct net_device *netdev,
                                    u8 key_index);
         int     (*set_default_mgmt_key)(struct wiphy *wiphy,
                                         struct net_device *netdev,
                                         u8 key_index);
 
         int     (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
                               struct beacon_parameters *info);
         int     (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
                               struct beacon_parameters *info);
         int     (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
 
 
         int     (*add_station)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *mac, struct station_parameters *params);
         int     (*del_station)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *mac);
         int     (*change_station)(struct wiphy *wiphy, struct net_device *dev,
                                   u8 *mac, struct station_parameters *params);
         int     (*get_station)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *mac, struct station_info *sinfo);
         int     (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
                                int idx, u8 *mac, struct station_info *sinfo);
 
         int     (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *dst, u8 *next_hop);
         int     (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *dst);
         int     (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
                                   u8 *dst, u8 *next_hop);
         int     (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
                                u8 *dst, u8 *next_hop,
                                struct mpath_info *pinfo);
         int     (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
                                int idx, u8 *dst, u8 *next_hop,
                                struct mpath_info *pinfo);
         int     (*get_mesh_params)(struct wiphy *wiphy,
                                 struct net_device *dev,
                                 struct mesh_config *conf);
         int     (*set_mesh_params)(struct wiphy *wiphy,
                                 struct net_device *dev,
                                 const struct mesh_config *nconf, u32 mask);
         int     (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
                               struct bss_parameters *params);
 
         int     (*set_txq_params)(struct wiphy *wiphy,
                                   struct ieee80211_txq_params *params);
 
         int     (*set_channel)(struct wiphy *wiphy,
                                struct ieee80211_channel *chan,
                                enum nl80211_channel_type channel_type);
 
         int     (*scan)(struct wiphy *wiphy, struct net_device *dev,
                         struct cfg80211_scan_request *request);
 
         int     (*auth)(struct wiphy *wiphy, struct net_device *dev,
                         struct cfg80211_auth_request *req);
         int     (*assoc)(struct wiphy *wiphy, struct net_device *dev,
                          struct cfg80211_assoc_request *req);
         int     (*deauth)(struct wiphy *wiphy, struct net_device *dev,
                           struct cfg80211_deauth_request *req,
                           void *cookie);
         int     (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
                             struct cfg80211_disassoc_request *req,
                             void *cookie);
 
         int     (*connect)(struct wiphy *wiphy, struct net_device *dev,
                            struct cfg80211_connect_params *sme);
         int     (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
                               u16 reason_code);
 
         int     (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
                              struct cfg80211_ibss_params *params);
         int     (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
 
         int     (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
 
         int     (*set_tx_power)(struct wiphy *wiphy,
                                 enum tx_power_setting type, int dbm);
         int     (*get_tx_power)(struct wiphy *wiphy, int *dbm);
 
         int     (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
                                 u8 *addr);
 
         void    (*rfkill_poll)(struct wiphy *wiphy);
 
 #ifdef CONFIG_NL80211_TESTMODE
         int     (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
 #endif
 
         int     (*set_bitrate_mask)(struct wiphy *wiphy,
                                     struct net_device *dev,
                                     const u8 *peer,
                                     const struct cfg80211_bitrate_mask *mask);
 
         /* some temporary stuff to finish wext */
         int     (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
                                   bool enabled, int timeout);
 };
 
 #endif
 
 /*
  * wireless hardware and networking interfaces structures
  * and registration/helper functions
  */
 
 /**
  * struct wiphy - wireless hardware description
  * @idx: the wiphy index assigned to this item
  * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
  * @custom_regulatory: tells us the driver for this device
  *      has its own custom regulatory domain and cannot identify the
  *      ISO / IEC 3166 alpha2 it belongs to. When this is enabled
  *      we will disregard the first regulatory hint (when the
  *      initiator is %REGDOM_SET_BY_CORE).
  * @strict_regulatory: tells us the driver for this device will ignore
  *      regulatory domain settings until it gets its own regulatory domain
  *      via its regulatory_hint(). After its gets its own regulatory domain
  *      it will only allow further regulatory domain settings to further
  *      enhance compliance. For example if channel 13 and 14 are disabled
  *      by this regulatory domain no user regulatory domain can enable these
  *      channels at a later time. This can be used for devices which do not
  *      have calibration information gauranteed for frequencies or settings
  *      outside of its regulatory domain.
  * @disable_beacon_hints: enable this if your driver needs to ensure that
  *      passive scan flags and beaconing flags may not be lifted by cfg80211
  *      due to regulatory beacon hints. For more information on beacon
  *      hints read the documenation for regulatory_hint_found_beacon()
  * @reg_notifier: the driver's regulatory notification callback
  * @regd: the driver's regulatory domain, if one was requested via
  *      the regulatory_hint() API. This can be used by the driver
  *      on the reg_notifier() if it chooses to ignore future
  *      regulatory domain changes caused by other drivers.
  * @signal_type: signal type reported in &struct cfg80211_bss.
  * @cipher_suites: supported cipher suites
  * @n_cipher_suites: number of supported cipher suites
  * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
  * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
  * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
  *      -1 = fragmentation disabled, only odd values >= 256 used
  * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
  * @net: the network namespace this wiphy currently lives in
  * @netnsok: if set to false, do not allow changing the netns of this
  *      wiphy at all
  * @ps_default: default for powersave, will be set depending on the
  *      kernel's default on wiphy_new(), but can be changed by the
  *      driver if it has a good reason to override the default
  */
 struct wiphy {
   /* assign these fields before you register the wiphy */
 
   /* permanent MAC address */
   u8 perm_addr[ETH_ADDR_LEN];
 
   /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
   u16 interface_modes;
 
   bool custom_regulatory;
   bool strict_regulatory;
   bool disable_beacon_hints;
 
   bool netnsok;
   bool ps_default;
 
   enum cfg80211_signal_type signal_type;
 
   int bss_priv_size;
   u8 max_scan_ssids;
   u16 max_scan_ie_len;
 
   int n_cipher_suites;
   const u32 *cipher_suites;
 
   u8 retry_short;
   u8 retry_long;
   u32 frag_threshold;
   u32 rts_threshold;
 
   /* If multiple wiphys are registered and you're handed e.g.
    * a regular netdev with assigned ieee80211_ptr, you won't
    * know whether it points to a wiphy your driver has registered
    * or not. Assign this to something global to your driver to
    * help determine whether you own this wiphy or not. */
   const void *privid;
 
   struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
 
   /* Lets us get back the wiphy on the callback */
 #if 0
   int (*reg_notifier)(struct wiphy *wiphy,
                       struct regulatory_request *request);
 #endif
 
   /* fields below are read-only, assigned by cfg80211 */
 
   const struct ieee80211_regdomain *regd;
 
   /* the item in /sys/class/ieee80211/ points to this,
    * you need use set_wiphy_dev() (see below) */
   //struct device dev;
 
   /* dir in debugfs: ieee80211/<wiphyname> */
   struct dentry *debugfsdir;
 
 #ifdef CONFIG_NET_NS
   /* the network namespace this phy lives in currently */
   struct net *_net;
 #endif
 
   char priv[0] ALIGNED(32);
 };
 
 #if 0
 
 #ifdef CONFIG_NET_NS
 static inline struct net *wiphy_net(struct wiphy *wiphy)
 {
         return wiphy->_net;
 }
 
 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
 {
         wiphy->_net = net;
 }
 #else
 static inline struct net *wiphy_net(struct wiphy *wiphy)
 {
         return &init_net;
 }
 
 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
 {
 }
 #endif
 
 /**
  * wiphy_priv - return priv from wiphy
  *
  * @wiphy: the wiphy whose priv pointer to return
  */
 static inline void *wiphy_priv(struct wiphy *wiphy)
 {
         BUG_ON(!wiphy);
         return &wiphy->priv;
 }
 
 /**
  * priv_to_wiphy - return the wiphy containing the priv
  *
  * @priv: a pointer previously returned by wiphy_priv
  */
 static inline struct wiphy *priv_to_wiphy(void *priv)
 {
         BUG_ON(!priv);
         return container_of(priv, struct wiphy, priv);
 }
 
 /**
  * set_wiphy_dev - set device pointer for wiphy
  *
  * @wiphy: The wiphy whose device to bind
  * @dev: The device to parent it to
  */
 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
 {
         wiphy->dev.parent = dev;
 }
 
 /**
  * wiphy_dev - get wiphy dev pointer
  *
  * @wiphy: The wiphy whose device struct to look up
  */
 static inline struct device *wiphy_dev(struct wiphy *wiphy)
 {
         return wiphy->dev.parent;
 }
 
 /**
  * wiphy_name - get wiphy name
  *
  * @wiphy: The wiphy whose name to return
  */
 static inline const char *wiphy_name(struct wiphy *wiphy)
 {
         return dev_name(&wiphy->dev);
 }
 
 /**
  * wiphy_new - create a new wiphy for use with cfg80211
  *
  * @ops: The configuration operations for this device
  * @sizeof_priv: The size of the private area to allocate
  *
  * Create a new wiphy and associate the given operations with it.
  * @sizeof_priv bytes are allocated for private use.
  *
  * The returned pointer must be assigned to each netdev's
  * ieee80211_ptr for proper operation.
  */
 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
 
 /**
  * wiphy_register - register a wiphy with cfg80211
  *
  * @wiphy: The wiphy to register.
  *
  * Returns a non-negative wiphy index or a negative error code.
  */
 extern int wiphy_register(struct wiphy *wiphy);
 
 /**
  * wiphy_unregister - deregister a wiphy from cfg80211
  *
  * @wiphy: The wiphy to unregister.
  *
  * After this call, no more requests can be made with this priv
  * pointer, but the call may sleep to wait for an outstanding
  * request that is being handled.
  */
 extern void wiphy_unregister(struct wiphy *wiphy);
 
 /**
  * wiphy_free - free wiphy
  *
  * @wiphy: The wiphy to free
  */
 extern void wiphy_free(struct wiphy *wiphy);
 
 /* internal structs */
 struct cfg80211_conn;
 struct cfg80211_internal_bss;
 struct cfg80211_cached_keys;
 
 #define MAX_AUTH_BSSES          4
 
 /**
  * struct wireless_dev - wireless per-netdev state
  *
  * This structure must be allocated by the driver/stack
  * that uses the ieee80211_ptr field in struct net_device
  * (this is intentional so it can be allocated along with
  * the netdev.)
  *
  * @wiphy: pointer to hardware description
  * @iftype: interface type
  * @list: (private) Used to collect the interfaces
  * @netdev: (private) Used to reference back to the netdev
  * @current_bss: (private) Used by the internal configuration code
  * @bssid: (private) Used by the internal configuration code
  * @ssid: (private) Used by the internal configuration code
  * @ssid_len: (private) Used by the internal configuration code
  * @wext: (private) Used by the internal wireless extensions compat code
  * @wext_bssid: (private) Used by the internal wireless extensions compat code
  */
 struct wireless_dev {
         struct wiphy *wiphy;
         enum nl80211_iftype iftype;
 
         /* the remainder of this struct should be private to cfg80211 */
         struct list_head list;
         struct net_device *netdev;
 
         struct mutex mtx;
 
         struct work_struct cleanup_work;
 
         /* currently used for IBSS and SME - might be rearranged later */
         u8 ssid[IEEE80211_MAX_SSID_LEN];
         u8 ssid_len;
         enum {
                 CFG80211_SME_IDLE,
                 CFG80211_SME_CONNECTING,
                 CFG80211_SME_CONNECTED,
         } sme_state;
         struct cfg80211_conn *conn;
         struct cfg80211_cached_keys *connect_keys;
 
         struct list_head event_list;
         spinlock_t event_lock;
 
         struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
         struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
         struct cfg80211_internal_bss *current_bss; /* associated / joined */
 
 #ifdef CONFIG_WIRELESS_EXT
         /* wext data */
         struct {
                 struct cfg80211_ibss_params ibss;
                 struct cfg80211_connect_params connect;
                 struct cfg80211_cached_keys *keys;
                 u8 *ie;
                 size_t ie_len;
                 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
                 u8 ssid[IEEE80211_MAX_SSID_LEN];
                 s8 default_key, default_mgmt_key;
                 bool ps, prev_bssid_valid;
                 int ps_timeout;
         } wext;
 #endif
 };
 
 /**
  * wdev_priv - return wiphy priv from wireless_dev
  *
  * @wdev: The wireless device whose wiphy's priv pointer to return
  */
 static inline void *wdev_priv(struct wireless_dev *wdev)
 {
         BUG_ON(!wdev);
         return wiphy_priv(wdev->wiphy);
 }
 
 /*
  * Utility functions
  */
 
 /**
  * ieee80211_channel_to_frequency - convert channel number to frequency
  */
 extern int ieee80211_channel_to_frequency(int chan);
 
 /**
  * ieee80211_frequency_to_channel - convert frequency to channel number
  */
 extern int ieee80211_frequency_to_channel(int freq);
 
 /*
  * Name indirection necessary because the ieee80211 code also has
  * a function named "ieee80211_get_channel", so if you include
  * cfg80211's header file you get cfg80211's version, if you try
  * to include both header files you'll (rightfully!) get a symbol
  * clash.
  */
 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
                                                          int freq);
 /**
  * ieee80211_get_channel - get channel struct from wiphy for specified frequency
  */
 static inline struct ieee80211_channel *
 ieee80211_get_channel(struct wiphy *wiphy, int freq)
 {
         return __ieee80211_get_channel(wiphy, freq);
 }
 
 /**
  * ieee80211_get_response_rate - get basic rate for a given rate
  *
  * @sband: the band to look for rates in
  * @basic_rates: bitmap of basic rates
  * @bitrate: the bitrate for which to find the basic rate
  *
  * This function returns the basic rate corresponding to a given
  * bitrate, that is the next lower bitrate contained in the basic
  * rate map, which is, for this function, given as a bitmap of
  * indices of rates in the band's bitrate table.
  */
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
                             u32 basic_rates, int bitrate);
 
 /*
  * Radiotap parsing functions -- for controlled injection support
  *
  * Implemented in net/wireless/radiotap.c
  * Documentation in Documentation/networking/radiotap-headers.txt
  */
 
 /**
  * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
  * @rtheader: pointer to the radiotap header we are walking through
  * @max_length: length of radiotap header in cpu byte ordering
  * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
  * @this_arg: pointer to current radiotap arg
  * @arg_index: internal next argument index
  * @arg: internal next argument pointer
  * @next_bitmap: internal pointer to next present u32
  * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
  */
 
 struct ieee80211_radiotap_iterator {
         struct ieee80211_radiotap_header *rtheader;
         int max_length;
         int this_arg_index;
         u8 *this_arg;
 
         int arg_index;
         u8 *arg;
         __le32 *next_bitmap;
         u32 bitmap_shifter;
 };
 
 extern int ieee80211_radiotap_iterator_init(
    struct ieee80211_radiotap_iterator *iterator,
    struct ieee80211_radiotap_header *radiotap_header,
    int max_length);
 
 extern int ieee80211_radiotap_iterator_next(
    struct ieee80211_radiotap_iterator *iterator);
 
 extern const unsigned char rfc1042_header[6];
 extern const unsigned char bridge_tunnel_header[6];
 
 /**
  * ieee80211_get_hdrlen_from_skb - get header length from data
  *
  * Given an skb with a raw 802.11 header at the data pointer this function
  * returns the 802.11 header length in bytes (not including encryption
  * headers). If the data in the sk_buff is too short to contain a valid 802.11
  * header the function returns 0.
  *
  * @skb: the frame
  */
 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
 
 /**
  * ieee80211_hdrlen - get header length in bytes from frame control
  * @fc: frame control field in little-endian format
  */
 unsigned int ieee80211_hdrlen(__le16 fc);
 
 /**
  * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
  * @skb: the 802.11 data frame
  * @addr: the device MAC address
  * @iftype: the virtual interface type
  */
 int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
                            enum nl80211_iftype iftype);
 
 /**
  * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
  * @skb: the 802.3 frame
  * @addr: the device MAC address
  * @iftype: the virtual interface type
  * @bssid: the network bssid (used only for iftype STATION and ADHOC)
  * @qos: build 802.11 QoS data frame
  */
 int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
                              enum nl80211_iftype iftype, u8 *bssid, bool qos);
 
 /**
  * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
  * @skb: the data frame
  */
 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
 
 /*
  * Regulatory helper functions for wiphys
  */
 
 /**
  * regulatory_hint - driver hint to the wireless core a regulatory domain
  * @wiphy: the wireless device giving the hint (used only for reporting
  *      conflicts)
  * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
  *      should be in. If @rd is set this should be NULL. Note that if you
  *      set this to NULL you should still set rd->alpha2 to some accepted
  *      alpha2.
  *
  * Wireless drivers can use this function to hint to the wireless core
  * what it believes should be the current regulatory domain by
  * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
  * domain should be in or by providing a completely build regulatory domain.
  * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
  * for a regulatory domain structure for the respective country.
  *
  * The wiphy must have been registered to cfg80211 prior to this call.
  * For cfg80211 drivers this means you must first use wiphy_register(),
  * for mac80211 drivers you must first use ieee80211_register_hw().
  *
  * Drivers should check the return value, its possible you can get
  * an -ENOMEM.
  */
 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
 
 /**
  * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
  * @wiphy: the wireless device we want to process the regulatory domain on
  * @regd: the custom regulatory domain to use for this wiphy
  *
  * Drivers can sometimes have custom regulatory domains which do not apply
  * to a specific country. Drivers can use this to apply such custom regulatory
  * domains. This routine must be called prior to wiphy registration. The
  * custom regulatory domain will be trusted completely and as such previous
  * default channel settings will be disregarded. If no rule is found for a
  * channel on the regulatory domain the channel will be disabled.
  */
 extern void wiphy_apply_custom_regulatory(
         struct wiphy *wiphy,
         const struct ieee80211_regdomain *regd);
 
 /**
  * freq_reg_info - get regulatory information for the given frequency
  * @wiphy: the wiphy for which we want to process this rule for
  * @center_freq: Frequency in KHz for which we want regulatory information for
  * @desired_bw_khz: the desired max bandwidth you want to use per
  *      channel. Note that this is still 20 MHz if you want to use HT40
  *      as HT40 makes use of two channels for its 40 MHz width bandwidth.
  *      If set to 0 we'll assume you want the standard 20 MHz.
  * @reg_rule: the regulatory rule which we have for this frequency
  *
  * Use this function to get the regulatory rule for a specific frequency on
  * a given wireless device. If the device has a specific regulatory domain
  * it wants to follow we respect that unless a country IE has been received
  * and processed already.
  *
  * Returns 0 if it was able to find a valid regulatory rule which does
  * apply to the given center_freq otherwise it returns non-zero. It will
  * also return -ERANGE if we determine the given center_freq does not even have
  * a regulatory rule for a frequency range in the center_freq's band. See
  * freq_in_rule_band() for our current definition of a band -- this is purely
  * subjective and right now its 802.11 specific.
  */
 extern int freq_reg_info(struct wiphy *wiphy,
                          u32 center_freq,
                          u32 desired_bw_khz,
                          const struct ieee80211_reg_rule **reg_rule);
 
 /*
  * Temporary wext handlers & helper functions
  *
  * In the future cfg80211 will simply assign the entire wext handler
  * structure to netdevs it manages, but we're not there yet.
  */
 int cfg80211_wext_giwname(struct net_device *dev,
                           struct iw_request_info *info,
                           char *name, char *extra);
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
                           u32 *mode, char *extra);
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
                           u32 *mode, char *extra);
 int cfg80211_wext_siwscan(struct net_device *dev,
                           struct iw_request_info *info,
                           union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwscan(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_point *data, char *extra);
 int cfg80211_wext_siwmlme(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_point *data, char *extra);
 int cfg80211_wext_giwrange(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_point *data, char *extra);
 int cfg80211_wext_siwgenie(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_point *data, char *extra);
 int cfg80211_wext_siwauth(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *data, char *extra);
 int cfg80211_wext_giwauth(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *data, char *extra);
 
 int cfg80211_wext_siwfreq(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_freq *freq, char *extra);
 int cfg80211_wext_giwfreq(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_freq *freq, char *extra);
 int cfg80211_wext_siwessid(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_point *data, char *ssid);
 int cfg80211_wext_giwessid(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_point *data, char *ssid);
 int cfg80211_wext_siwrate(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *rate, char *extra);
 int cfg80211_wext_giwrate(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *rate, char *extra);
 
 int cfg80211_wext_siwrts(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_param *rts, char *extra);
 int cfg80211_wext_giwrts(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_param *rts, char *extra);
 int cfg80211_wext_siwfrag(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *frag, char *extra);
 int cfg80211_wext_giwfrag(struct net_device *dev,
                           struct iw_request_info *info,
                           struct iw_param *frag, char *extra);
 int cfg80211_wext_siwretry(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_param *retry, char *extra);
 int cfg80211_wext_giwretry(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_param *retry, char *extra);
 int cfg80211_wext_siwencodeext(struct net_device *dev,
                                struct iw_request_info *info,
                                struct iw_point *erq, char *extra);
 int cfg80211_wext_siwencode(struct net_device *dev,
                             struct iw_request_info *info,
                             struct iw_point *erq, char *keybuf);
 int cfg80211_wext_giwencode(struct net_device *dev,
                             struct iw_request_info *info,
                             struct iw_point *erq, char *keybuf);
 int cfg80211_wext_siwtxpower(struct net_device *dev,
                              struct iw_request_info *info,
                              union iwreq_data *data, char *keybuf);
 int cfg80211_wext_giwtxpower(struct net_device *dev,
                              struct iw_request_info *info,
                              union iwreq_data *data, char *keybuf);
 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
 
 int cfg80211_wext_siwpower(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_param *wrq, char *extra);
 int cfg80211_wext_giwpower(struct net_device *dev,
                            struct iw_request_info *info,
                            struct iw_param *wrq, char *extra);
 
 int cfg80211_wext_siwap(struct net_device *dev,
                         struct iw_request_info *info,
                         struct sockaddr *ap_addr, char *extra);
 int cfg80211_wext_giwap(struct net_device *dev,
                         struct iw_request_info *info,
                         struct sockaddr *ap_addr, char *extra);
 
 /*
  * callbacks for asynchronous cfg80211 methods, notification
  * functions and BSS handling helpers
  */
 
 /**
  * cfg80211_scan_done - notify that scan finished
  *
  * @request: the corresponding scan request
  * @aborted: set to true if the scan was aborted for any reason,
  *      userspace will be notified of that
  */
 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
 
 /**
  * cfg80211_inform_bss - inform cfg80211 of a new BSS
  *
  * @wiphy: the wiphy reporting the BSS
  * @bss: the found BSS
  * @signal: the signal strength, type depends on the wiphy's signal_type
  * @gfp: context flags
  *
  * This informs cfg80211 that BSS information was found and
  * the BSS should be updated/added.
  */
 struct cfg80211_bss*
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
                           struct ieee80211_channel *channel,
                           struct ieee80211_mgmt *mgmt, size_t len,
                           s32 signal, gfp_t gfp);
 
 struct cfg80211_bss*
 cfg80211_inform_bss(struct wiphy *wiphy,
                     struct ieee80211_channel *channel,
                     const u8 *bssid,
                     u64 timestamp, u16 capability, u16 beacon_interval,
                     const u8 *ie, size_t ielen,
                     s32 signal, gfp_t gfp);
 
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
                                       struct ieee80211_channel *channel,
                                       const u8 *bssid,
                                       const u8 *ssid, size_t ssid_len,
                                       u16 capa_mask, u16 capa_val);
 static inline struct cfg80211_bss *
 cfg80211_get_ibss(struct wiphy *wiphy,
                   struct ieee80211_channel *channel,
                   const u8 *ssid, size_t ssid_len)
 {
         return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
                                 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
 }
 
 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
                                        struct ieee80211_channel *channel,
                                        const u8 *meshid, size_t meshidlen,
                                        const u8 *meshcfg);
 void cfg80211_put_bss(struct cfg80211_bss *bss);
 
 /**
  * cfg80211_unlink_bss - unlink BSS from internal data structures
  * @wiphy: the wiphy
  * @bss: the bss to remove
  *
  * This function removes the given BSS from the internal data structures
  * thereby making it no longer show up in scan results etc. Use this
  * function when you detect a BSS is gone. Normally BSSes will also time
  * out, so it is not necessary to use this function at all.
  */
 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
 /**
  * cfg80211_send_rx_auth - notification of processed authentication
  * @dev: network device
  * @buf: authentication frame (header + body)
  * @len: length of the frame data
  *
  * This function is called whenever an authentication has been processed in
  * station mode. The driver is required to call either this function or
  * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
  * call. This function may sleep.
  */
 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
  * cfg80211_send_auth_timeout - notification of timed out authentication
  * @dev: network device
  * @addr: The MAC address of the device with which the authentication timed out
  *
  * This function may sleep.
  */
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
 
 /**
  * cfg80211_send_rx_assoc - notification of processed association
  * @dev: network device
  * @buf: (re)association response frame (header + body)
  * @len: length of the frame data
  *
  * This function is called whenever a (re)association response has been
  * processed in station mode. The driver is required to call either this
  * function or cfg80211_send_assoc_timeout() to indicate the result of
  * cfg80211_ops::assoc() call. This function may sleep.
  */
 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
  * cfg80211_send_assoc_timeout - notification of timed out association
  * @dev: network device
  * @addr: The MAC address of the device with which the association timed out
  *
  * This function may sleep.
  */
 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
 
 /**
  * cfg80211_send_deauth - notification of processed deauthentication
  * @dev: network device
  * @buf: deauthentication frame (header + body)
  * @len: length of the frame data
  * @cookie: cookie from ->deauth if called within that callback,
  *      %NULL otherwise
  *
  * This function is called whenever deauthentication has been processed in
  * station mode. This includes both received deauthentication frames and
  * locally generated ones. This function may sleep.
  */
 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
                           void *cookie);
 
 /**
  * cfg80211_send_disassoc - notification of processed disassociation
  * @dev: network device
  * @buf: disassociation response frame (header + body)
  * @len: length of the frame data
  * @cookie: cookie from ->disassoc if called within that callback,
  *      %NULL otherwise
  *
  * This function is called whenever disassociation has been processed in
  * station mode. This includes both received disassociation frames and locally
  * generated ones. This function may sleep.
  */
 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
                             void *cookie);
 
 /**
  * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
  * @dev: network device
  * @addr: The source MAC address of the frame
  * @key_type: The key type that the received frame used
  * @key_id: Key identifier (0..3)
  * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
  * @gfp: allocation flags
  *
  * This function is called whenever the local MAC detects a MIC failure in a
  * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
  * primitive.
  */
 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
                                   enum nl80211_key_type key_type, int key_id,
                                   const u8 *tsc, gfp_t gfp);
 
 /**
  * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
  *
  * @dev: network device
  * @bssid: the BSSID of the IBSS joined
  * @gfp: allocation flags
  *
  * This function notifies cfg80211 that the device joined an IBSS or
  * switched to a different BSSID. Before this function can be called,
  * either a beacon has to have been received from the IBSS, or one of
  * the cfg80211_inform_bss{,_frame} functions must have been called
  * with the locally generated beacon -- this guarantees that there is
  * always a scan result for this IBSS. cfg80211 will handle the rest.
  */
 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
 
 /**
  * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
  * @wiphy: the wiphy
  * @blocked: block status
  */
 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
 
 /**
  * wiphy_rfkill_start_polling - start polling rfkill
  * @wiphy: the wiphy
  */
 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
 
 /**
  * wiphy_rfkill_stop_polling - stop polling rfkill
  * @wiphy: the wiphy
  */
 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
 
 #ifdef CONFIG_NL80211_TESTMODE
 /**
  * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
  * @wiphy: the wiphy
  * @approxlen: an upper bound of the length of the data that will
  *      be put into the skb
  *
  * This function allocates and pre-fills an skb for a reply to
  * the testmode command. Since it is intended for a reply, calling
  * it outside of the @testmode_cmd operation is invalid.
  *
  * The returned skb (or %NULL if any errors happen) is pre-filled
  * with the wiphy index and set up in a way that any data that is
  * put into the skb (with skb_put(), nla_put() or similar) will end
  * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
  * needs to be done with the skb is adding data for the corresponding
  * userspace tool which can then read that data out of the testdata
  * attribute. You must not modify the skb in any other way.
  *
  * When done, call cfg80211_testmode_reply() with the skb and return
  * its error code as the result of the @testmode_cmd operation.
  */
 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
                                                   int approxlen);
 
 /**
  * cfg80211_testmode_reply - send the reply skb
  * @skb: The skb, must have been allocated with
  *      cfg80211_testmode_alloc_reply_skb()
  *
  * Returns an error code or 0 on success, since calling this
  * function will usually be the last thing before returning
  * from the @testmode_cmd you should return the error code.
  * Note that this function consumes the skb regardless of the
  * return value.
  */
 int cfg80211_testmode_reply(struct sk_buff *skb);
 
 /**
  * cfg80211_testmode_alloc_event_skb - allocate testmode event
  * @wiphy: the wiphy
  * @approxlen: an upper bound of the length of the data that will
  *      be put into the skb
  * @gfp: allocation flags
  *
  * This function allocates and pre-fills an skb for an event on the
  * testmode multicast group.
  *
  * The returned skb (or %NULL if any errors happen) is set up in the
  * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
  * for an event. As there, you should simply add data to it that will
  * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
  * not modify the skb in any other way.
  *
  * When done filling the skb, call cfg80211_testmode_event() with the
  * skb to send the event.
  */
 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
                                                   int approxlen, gfp_t gfp);
 
 /**
  * cfg80211_testmode_event - send the event
  * @skb: The skb, must have been allocated with
  *      cfg80211_testmode_alloc_event_skb()
  * @gfp: allocation flags
  *
  * This function sends the given @skb, which must have been allocated
  * by cfg80211_testmode_alloc_event_skb(), as an event. It always
  * consumes it.
  */
 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
 
 #define CFG80211_TESTMODE_CMD(cmd)      .testmode_cmd = (cmd),
 #else
 #define CFG80211_TESTMODE_CMD(cmd)
 #endif
 
 /**
  * cfg80211_connect_result - notify cfg80211 of connection result
  *
  * @dev: network device
  * @bssid: the BSSID of the AP
  * @req_ie: association request IEs (maybe be %NULL)
  * @req_ie_len: association request IEs length
  * @resp_ie: association response IEs (may be %NULL)
  * @resp_ie_len: assoc response IEs length
  * @status: status code, 0 for successful connection, use
  *      %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
  *      the real status code for failures.
  * @gfp: allocation flags
  *
  * It should be called by the underlying driver whenever connect() has
  * succeeded.
  */
 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
                              const u8 *req_ie, size_t req_ie_len,
                              const u8 *resp_ie, size_t resp_ie_len,
                              u16 status, gfp_t gfp);
 
 /**
  * cfg80211_roamed - notify cfg80211 of roaming
  *
  * @dev: network device
  * @bssid: the BSSID of the new AP
  * @req_ie: association request IEs (maybe be %NULL)
  * @req_ie_len: association request IEs length
  * @resp_ie: association response IEs (may be %NULL)
  * @resp_ie_len: assoc response IEs length
  * @gfp: allocation flags
  *
  * It should be called by the underlying driver whenever it roamed
  * from one AP to another while connected.
  */
 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
                      const u8 *req_ie, size_t req_ie_len,
                      const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
 
 /**
  * cfg80211_disconnected - notify cfg80211 that connection was dropped
  *
  * @dev: network device
  * @ie: information elements of the deauth/disassoc frame (may be %NULL)
  * @ie_len: length of IEs
  * @reason: reason code for the disconnection, set it to 0 if unknown
  * @gfp: allocation flags
  *
  * After it calls this function, the driver should enter an idle state
  * and not try to connect to any AP any more.
  */
 void cfg80211_disconnected(struct net_device *dev, u16 reason,
                            u8 *ie, size_t ie_len, gfp_t gfp);
 
 #endif
 #endif /* __NET_CFG80211_H */
 
 /*
  * Local Variables:
  * indent-tabs-mode: nil
  * mode: C
  * c-file-style: "gnu"
  * c-basic-offset: 2
  * End:
  */
 
 /* vi: set et sw=2 sts=2: */