All Arch: remove linkage for sys_nfsservctl system call

[linux-2.6/x86.git] / include / linux / nl80211.h

#ifndef __LINUX_NL80211_H
#define __LINUX_NL80211_H
/*
 * 802.11 netlink interface public header
 *
 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
 * Copyright 2008 Michael Wu <flamingice@sourmilk.net>
 * Copyright 2008 Luis Carlos Cobo <luisca@cozybit.com>
 * Copyright 2008 Michael Buesch <m@bues.ch>
 * Copyright 2008, 2009 Luis R. Rodriguez <lrodriguez@atheros.com>
 * Copyright 2008 Jouni Malinen <jouni.malinen@atheros.com>
 * Copyright 2008 Colin McCabe <colin@cozybit.com>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#include <linux/types.h>

/**
 * DOC: Station handling
 *
 * Stations are added per interface, but a special case exists with VLAN
 * interfaces. When a station is bound to an AP interface, it may be moved
 * into a VLAN identified by a VLAN interface index (%NL80211_ATTR_STA_VLAN).
 * The station is still assumed to belong to the AP interface it was added
 * to.
 *
 * TODO: need more info?
 */

/**
 * DOC: Frame transmission/registration support
 *
 * Frame transmission and registration support exists to allow userspace
 * management entities such as wpa_supplicant react to management frames
 * that are not being handled by the kernel. This includes, for example,
 * certain classes of action frames that cannot be handled in the kernel
 * for various reasons.
 *
 * Frame registration is done on a per-interface basis and registrations
 * cannot be removed other than by closing the socket. It is possible to
 * specify a registration filter to register, for example, only for a
 * certain type of action frame. In particular with action frames, those
 * that userspace registers for will not be returned as unhandled by the
 * driver, so that the registered application has to take responsibility
 * for doing that.
 *
 * The type of frame that can be registered for is also dependent on the
 * driver and interface type. The frame types are advertised in wiphy
 * attributes so applications know what to expect.
 *
 * NOTE: When an interface changes type while registrations are active,
 *       these registrations are ignored until the interface type is
 *       changed again. This means that changing the interface type can
 *       lead to a situation that couldn't otherwise be produced, but
 *       any such registrations will be dormant in the sense that they
 *       will not be serviced, i.e. they will not receive any frames.
 *
 * Frame transmission allows userspace to send for example the required
 * responses to action frames. It is subject to some sanity checking,
 * but many frames can be transmitted. When a frame was transmitted, its
 * status is indicated to the sending socket.
 *
 * For more technical details, see the corresponding command descriptions
 * below.
 */

/**
 * DOC: Virtual interface / concurrency capabilities
 *
 * Some devices are able to operate with virtual MACs, they can have
 * more than one virtual interface. The capability handling for this
 * is a bit complex though, as there may be a number of restrictions
 * on the types of concurrency that are supported.
 *
 * To start with, each device supports the interface types listed in
 * the %NL80211_ATTR_SUPPORTED_IFTYPES attribute, but by listing the
 * types there no concurrency is implied.
 *
 * Once concurrency is desired, more attributes must be observed:
 * To start with, since some interface types are purely managed in
 * software, like the AP-VLAN type in mac80211 for example, there's
 * an additional list of these, they can be added at any time and
 * are only restricted by some semantic restrictions (e.g. AP-VLAN
 * cannot be added without a corresponding AP interface). This list
 * is exported in the %NL80211_ATTR_SOFTWARE_IFTYPES attribute.
 *
 * Further, the list of supported combinations is exported. This is
 * in the %NL80211_ATTR_INTERFACE_COMBINATIONS attribute. Basically,
 * it exports a list of "groups", and at any point in time the
 * interfaces that are currently active must fall into any one of
 * the advertised groups. Within each group, there are restrictions
 * on the number of interfaces of different types that are supported
 * and also the number of different channels, along with potentially
 * some other restrictions. See &enum nl80211_if_combination_attrs.
 *
 * All together, these attributes define the concurrency of virtual
 * interfaces that a given device supports.
 */

/**
 * enum nl80211_commands - supported nl80211 commands
 *
 * @NL80211_CMD_UNSPEC: unspecified command to catch errors
 *
 * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
 *      to get a list of all present wiphys.
 * @NL80211_CMD_SET_WIPHY: set wiphy parameters, needs %NL80211_ATTR_WIPHY or
 *      %NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME,
 *      %NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ,
 *      %NL80211_ATTR_WIPHY_CHANNEL_TYPE, %NL80211_ATTR_WIPHY_RETRY_SHORT,
 *      %NL80211_ATTR_WIPHY_RETRY_LONG, %NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
 *      and/or %NL80211_ATTR_WIPHY_RTS_THRESHOLD.
 *      However, for setting the channel, see %NL80211_CMD_SET_CHANNEL
 *      instead, the support here is for backward compatibility only.
 * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
 *      or rename notification. Has attributes %NL80211_ATTR_WIPHY and
 *      %NL80211_ATTR_WIPHY_NAME.
 * @NL80211_CMD_DEL_WIPHY: Wiphy deleted. Has attributes
 *      %NL80211_ATTR_WIPHY and %NL80211_ATTR_WIPHY_NAME.
 *
 * @NL80211_CMD_GET_INTERFACE: Request an interface's configuration;
 *      either a dump request on a %NL80211_ATTR_WIPHY or a specific get
 *      on an %NL80211_ATTR_IFINDEX is supported.
 * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires
 *      %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
 * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response
 *      to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX,
 *      %NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also
 *      be sent from userspace to request creation of a new virtual interface,
 *      then requires attributes %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFTYPE and
 *      %NL80211_ATTR_IFNAME.
 * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
 *      %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
 *      userspace to request deletion of a virtual interface, then requires
 *      attribute %NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
 *      by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
 * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT,
 *      %NL80211_ATTR_KEY_DEFAULT_MGMT, or %NL80211_ATTR_KEY_THRESHOLD.
 * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
 *      %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC, %NL80211_ATTR_KEY_CIPHER,
 *      and %NL80211_ATTR_KEY_SEQ attributes.
 * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
 *      or %NL80211_ATTR_MAC.
 *
 * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a
 *      %NL80222_CMD_NEW_BEACON message)
 * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
 *      using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
 *      %NL80211_ATTR_BEACON_HEAD and %NL80211_ATTR_BEACON_TAIL attributes.
 * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
 *      parameters are like for %NL80211_CMD_SET_BEACON.
 * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
 *
 * @NL80211_CMD_GET_STATION: Get station attributes for station identified by
 *      %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_STATION: Set station attributes for station identified by
 *      %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the
 *      the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
 *      or, if no MAC address given, all stations, on the interface identified
 *      by %NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_GET_MPATH: Get mesh path attributes for mesh path to
 *      destination %NL80211_ATTR_MAC on the interface identified by
 *      %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_MPATH:  Set mesh path attributes for mesh path to
 *      destination %NL80211_ATTR_MAC on the interface identified by
 *      %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_NEW_MPATH: Create a new mesh path for the destination given by
 *      %NL80211_ATTR_MAC via %NL80211_ATTR_MPATH_NEXT_HOP.
 * @NL80211_CMD_DEL_MPATH: Delete a mesh path to the destination given by
 *      %NL80211_ATTR_MAC.
 * @NL80211_CMD_NEW_PATH: Add a mesh path with given attributes to the
 *      the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_DEL_PATH: Remove a mesh path identified by %NL80211_ATTR_MAC
 *      or, if no MAC address given, all mesh paths, on the interface identified
 *      by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_BSS: Set BSS attributes for BSS identified by
 *      %NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_GET_REG: ask the wireless core to send us its currently set
 *      regulatory domain.
 * @NL80211_CMD_SET_REG: Set current regulatory domain. CRDA sends this command
 *      after being queried by the kernel. CRDA replies by sending a regulatory
 *      domain structure which consists of %NL80211_ATTR_REG_ALPHA set to our
 *      current alpha2 if it found a match. It also provides
 *      NL80211_ATTR_REG_RULE_FLAGS, and a set of regulatory rules. Each
 *      regulatory rule is a nested set of attributes  given by
 *      %NL80211_ATTR_REG_RULE_FREQ_[START|END] and
 *      %NL80211_ATTR_FREQ_RANGE_MAX_BW with an attached power rule given by
 *      %NL80211_ATTR_REG_RULE_POWER_MAX_ANT_GAIN and
 *      %NL80211_ATTR_REG_RULE_POWER_MAX_EIRP.
 * @NL80211_CMD_REQ_SET_REG: ask the wireless core to set the regulatory domain
 *      to the specified ISO/IEC 3166-1 alpha2 country code. The core will
 *      store this as a valid request and then query userspace for it.
 *
 * @NL80211_CMD_GET_MESH_CONFIG: Get mesh networking properties for the
 *      interface identified by %NL80211_ATTR_IFINDEX
 *
 * @NL80211_CMD_SET_MESH_CONFIG: Set mesh networking properties for the
 *      interface identified by %NL80211_ATTR_IFINDEX
 *
 * @NL80211_CMD_SET_MGMT_EXTRA_IE: Set extra IEs for management frames. The
 *      interface is identified with %NL80211_ATTR_IFINDEX and the management
 *      frame subtype with %NL80211_ATTR_MGMT_SUBTYPE. The extra IE data to be
 *      added to the end of the specified management frame is specified with
 *      %NL80211_ATTR_IE. If the command succeeds, the requested data will be
 *      added to all specified management frames generated by
 *      kernel/firmware/driver.
 *      Note: This command has been removed and it is only reserved at this
 *      point to avoid re-using existing command number. The functionality this
 *      command was planned for has been provided with cleaner design with the
 *      option to specify additional IEs in NL80211_CMD_TRIGGER_SCAN,
 *      NL80211_CMD_AUTHENTICATE, NL80211_CMD_ASSOCIATE,
 *      NL80211_CMD_DEAUTHENTICATE, and NL80211_CMD_DISASSOCIATE.
 *
 * @NL80211_CMD_GET_SCAN: get scan results
 * @NL80211_CMD_TRIGGER_SCAN: trigger a new scan with the given parameters
 * @NL80211_CMD_NEW_SCAN_RESULTS: scan notification (as a reply to
 *      NL80211_CMD_GET_SCAN and on the "scan" multicast group)
 * @NL80211_CMD_SCAN_ABORTED: scan was aborted, for unspecified reasons,
 *      partial scan results may be available
 *
 * @NL80211_CMD_START_SCHED_SCAN: start a scheduled scan at certain
 *      intervals, as specified by %NL80211_ATTR_SCHED_SCAN_INTERVAL.
 *      Like with normal scans, if SSIDs (%NL80211_ATTR_SCAN_SSIDS)
 *      are passed, they are used in the probe requests.  For
 *      broadcast, a broadcast SSID must be passed (ie. an empty
 *      string).  If no SSID is passed, no probe requests are sent and
 *      a passive scan is performed.  %NL80211_ATTR_SCAN_FREQUENCIES,
 *      if passed, define which channels should be scanned; if not
 *      passed, all channels allowed for the current regulatory domain
 *      are used.  Extra IEs can also be passed from the userspace by
 *      using the %NL80211_ATTR_IE attribute.
 * @NL80211_CMD_STOP_SCHED_SCAN: stop a scheduled scan.  Returns -ENOENT
 *      if scheduled scan is not running.
 * @NL80211_CMD_SCHED_SCAN_RESULTS: indicates that there are scheduled scan
 *      results available.
 * @NL80211_CMD_SCHED_SCAN_STOPPED: indicates that the scheduled scan has
 *      stopped.  The driver may issue this event at any time during a
 *      scheduled scan.  One reason for stopping the scan is if the hardware
 *      does not support starting an association or a normal scan while running
 *      a scheduled scan.  This event is also sent when the
 *      %NL80211_CMD_STOP_SCHED_SCAN command is received or when the interface
 *      is brought down while a scheduled scan was running.
 *
 * @NL80211_CMD_GET_SURVEY: get survey resuls, e.g. channel occupation
 *      or noise level
 * @NL80211_CMD_NEW_SURVEY_RESULTS: survey data notification (as a reply to
 *      NL80211_CMD_GET_SURVEY and on the "scan" multicast group)
 *
 * @NL80211_CMD_REG_CHANGE: indicates to userspace the regulatory domain
 *      has been changed and provides details of the request information
 *      that caused the change such as who initiated the regulatory request
 *      (%NL80211_ATTR_REG_INITIATOR), the wiphy_idx
 *      (%NL80211_ATTR_REG_ALPHA2) on which the request was made from if
 *      the initiator was %NL80211_REGDOM_SET_BY_COUNTRY_IE or
 *      %NL80211_REGDOM_SET_BY_DRIVER, the type of regulatory domain
 *      set (%NL80211_ATTR_REG_TYPE), if the type of regulatory domain is
 *      %NL80211_REG_TYPE_COUNTRY the alpha2 to which we have moved on
 *      to (%NL80211_ATTR_REG_ALPHA2).
 * @NL80211_CMD_REG_BEACON_HINT: indicates to userspace that an AP beacon
 *      has been found while world roaming thus enabling active scan or
 *      any mode of operation that initiates TX (beacons) on a channel
 *      where we would not have been able to do either before. As an example
 *      if you are world roaming (regulatory domain set to world or if your
 *      driver is using a custom world roaming regulatory domain) and while
 *      doing a passive scan on the 5 GHz band you find an AP there (if not
 *      on a DFS channel) you will now be able to actively scan for that AP
 *      or use AP mode on your card on that same channel. Note that this will
 *      never be used for channels 1-11 on the 2 GHz band as they are always
 *      enabled world wide. This beacon hint is only sent if your device had
 *      either disabled active scanning or beaconing on a channel. We send to
 *      userspace the wiphy on which we removed a restriction from
 *      (%NL80211_ATTR_WIPHY) and the channel on which this occurred
 *      before (%NL80211_ATTR_FREQ_BEFORE) and after (%NL80211_ATTR_FREQ_AFTER)
 *      the beacon hint was processed.
 *
 * @NL80211_CMD_AUTHENTICATE: authentication request and notification.
 *      This command is used both as a command (request to authenticate) and
 *      as an event on the "mlme" multicast group indicating completion of the
 *      authentication process.
 *      When used as a command, %NL80211_ATTR_IFINDEX is used to identify the
 *      interface. %NL80211_ATTR_MAC is used to specify PeerSTAAddress (and
 *      BSSID in case of station mode). %NL80211_ATTR_SSID is used to specify
 *      the SSID (mainly for association, but is included in authentication
 *      request, too, to help BSS selection. %NL80211_ATTR_WIPHY_FREQ is used
 *      to specify the frequence of the channel in MHz. %NL80211_ATTR_AUTH_TYPE
 *      is used to specify the authentication type. %NL80211_ATTR_IE is used to
 *      define IEs (VendorSpecificInfo, but also including RSN IE and FT IEs)
 *      to be added to the frame.
 *      When used as an event, this reports reception of an Authentication
 *      frame in station and IBSS modes when the local MLME processed the
 *      frame, i.e., it was for the local STA and was received in correct
 *      state. This is similar to MLME-AUTHENTICATE.confirm primitive in the
 *      MLME SAP interface (kernel providing MLME, userspace SME). The
 *      included %NL80211_ATTR_FRAME attribute contains the management frame
 *      (including both the header and frame body, but not FCS). This event is
 *      also used to indicate if the authentication attempt timed out. In that
 *      case the %NL80211_ATTR_FRAME attribute is replaced with a
 *      %NL80211_ATTR_TIMED_OUT flag (and %NL80211_ATTR_MAC to indicate which
 *      pending authentication timed out).
 * @NL80211_CMD_ASSOCIATE: association request and notification; like
 *      NL80211_CMD_AUTHENTICATE but for Association and Reassociation
 *      (similar to MLME-ASSOCIATE.request, MLME-REASSOCIATE.request,
 *      MLME-ASSOCIATE.confirm or MLME-REASSOCIATE.confirm primitives).
 * @NL80211_CMD_DEAUTHENTICATE: deauthentication request and notification; like
 *      NL80211_CMD_AUTHENTICATE but for Deauthentication frames (similar to
 *      MLME-DEAUTHENTICATION.request and MLME-DEAUTHENTICATE.indication
 *      primitives).
 * @NL80211_CMD_DISASSOCIATE: disassociation request and notification; like
 *      NL80211_CMD_AUTHENTICATE but for Disassociation frames (similar to
 *      MLME-DISASSOCIATE.request and MLME-DISASSOCIATE.indication primitives).
 *
 * @NL80211_CMD_MICHAEL_MIC_FAILURE: notification of a locally detected Michael
 *      MIC (part of TKIP) failure; sent on the "mlme" multicast group; the
 *      event includes %NL80211_ATTR_MAC to describe the source MAC address of
 *      the frame with invalid MIC, %NL80211_ATTR_KEY_TYPE to show the key
 *      type, %NL80211_ATTR_KEY_IDX to indicate the key identifier, and
 *      %NL80211_ATTR_KEY_SEQ to indicate the TSC value of the frame; this
 *      event matches with MLME-MICHAELMICFAILURE.indication() primitive
 *
 * @NL80211_CMD_JOIN_IBSS: Join a new IBSS -- given at least an SSID and a
 *      FREQ attribute (for the initial frequency if no peer can be found)
 *      and optionally a MAC (as BSSID) and FREQ_FIXED attribute if those
 *      should be fixed rather than automatically determined. Can only be
 *      executed on a network interface that is UP, and fixed BSSID/FREQ
 *      may be rejected. Another optional parameter is the beacon interval,
 *      given in the %NL80211_ATTR_BEACON_INTERVAL attribute, which if not
 *      given defaults to 100 TU (102.4ms).
 * @NL80211_CMD_LEAVE_IBSS: Leave the IBSS -- no special arguments, the IBSS is
 *      determined by the network interface.
 *
 * @NL80211_CMD_TESTMODE: testmode command, takes a wiphy (or ifindex) attribute
 *      to identify the device, and the TESTDATA blob attribute to pass through
 *      to the driver.
 *
 * @NL80211_CMD_CONNECT: connection request and notification; this command
 *      requests to connect to a specified network but without separating
 *      auth and assoc steps. For this, you need to specify the SSID in a
 *      %NL80211_ATTR_SSID attribute, and can optionally specify the association
 *      IEs in %NL80211_ATTR_IE, %NL80211_ATTR_AUTH_TYPE, %NL80211_ATTR_MAC,
 *      %NL80211_ATTR_WIPHY_FREQ, %NL80211_ATTR_CONTROL_PORT,
 *      %NL80211_ATTR_CONTROL_PORT_ETHERTYPE and
 *      %NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT.
 *      It is also sent as an event, with the BSSID and response IEs when the
 *      connection is established or failed to be established. This can be
 *      determined by the STATUS_CODE attribute.
 * @NL80211_CMD_ROAM: request that the card roam (currently not implemented),
 *      sent as an event when the card/driver roamed by itself.
 * @NL80211_CMD_DISCONNECT: drop a given connection; also used to notify
 *      userspace that a connection was dropped by the AP or due to other
 *      reasons, for this the %NL80211_ATTR_DISCONNECTED_BY_AP and
 *      %NL80211_ATTR_REASON_CODE attributes are used.
 *
 * @NL80211_CMD_SET_WIPHY_NETNS: Set a wiphy's netns. Note that all devices
 *      associated with this wiphy must be down and will follow.
 *
 * @NL80211_CMD_REMAIN_ON_CHANNEL: Request to remain awake on the specified
 *      channel for the specified amount of time. This can be used to do
 *      off-channel operations like transmit a Public Action frame and wait for
 *      a response while being associated to an AP on another channel.
 *      %NL80211_ATTR_IFINDEX is used to specify which interface (and thus
 *      radio) is used. %NL80211_ATTR_WIPHY_FREQ is used to specify the
 *      frequency for the operation and %NL80211_ATTR_WIPHY_CHANNEL_TYPE may be
 *      optionally used to specify additional channel parameters.
 *      %NL80211_ATTR_DURATION is used to specify the duration in milliseconds
 *      to remain on the channel. This command is also used as an event to
 *      notify when the requested duration starts (it may take a while for the
 *      driver to schedule this time due to other concurrent needs for the
 *      radio).
 *      When called, this operation returns a cookie (%NL80211_ATTR_COOKIE)
 *      that will be included with any events pertaining to this request;
 *      the cookie is also used to cancel the request.
 * @NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: This command can be used to cancel a
 *      pending remain-on-channel duration if the desired operation has been
 *      completed prior to expiration of the originally requested duration.
 *      %NL80211_ATTR_WIPHY or %NL80211_ATTR_IFINDEX is used to specify the
 *      radio. The %NL80211_ATTR_COOKIE attribute must be given as well to
 *      uniquely identify the request.
 *      This command is also used as an event to notify when a requested
 *      remain-on-channel duration has expired.
 *
 * @NL80211_CMD_SET_TX_BITRATE_MASK: Set the mask of rates to be used in TX
 *      rate selection. %NL80211_ATTR_IFINDEX is used to specify the interface
 *      and @NL80211_ATTR_TX_RATES the set of allowed rates.
 *
 * @NL80211_CMD_REGISTER_FRAME: Register for receiving certain mgmt frames
 *      (via @NL80211_CMD_FRAME) for processing in userspace. This command
 *      requires an interface index, a frame type attribute (optional for
 *      backward compatibility reasons, if not given assumes action frames)
 *      and a match attribute containing the first few bytes of the frame
 *      that should match, e.g. a single byte for only a category match or
 *      four bytes for vendor frames including the OUI. The registration
 *      cannot be dropped, but is removed automatically when the netlink
 *      socket is closed. Multiple registrations can be made.
 * @NL80211_CMD_REGISTER_ACTION: Alias for @NL80211_CMD_REGISTER_FRAME for
 *      backward compatibility
 * @NL80211_CMD_FRAME: Management frame TX request and RX notification. This
 *      command is used both as a request to transmit a management frame and
 *      as an event indicating reception of a frame that was not processed in
 *      kernel code, but is for us (i.e., which may need to be processed in a
 *      user space application). %NL80211_ATTR_FRAME is used to specify the
 *      frame contents (including header). %NL80211_ATTR_WIPHY_FREQ (and
 *      optionally %NL80211_ATTR_WIPHY_CHANNEL_TYPE) is used to indicate on
 *      which channel the frame is to be transmitted or was received. If this
 *      channel is not the current channel (remain-on-channel or the
 *      operational channel) the device will switch to the given channel and
 *      transmit the frame, optionally waiting for a response for the time
 *      specified using %NL80211_ATTR_DURATION. When called, this operation
 *      returns a cookie (%NL80211_ATTR_COOKIE) that will be included with the
 *      TX status event pertaining to the TX request.
 * @NL80211_CMD_FRAME_WAIT_CANCEL: When an off-channel TX was requested, this
 *      command may be used with the corresponding cookie to cancel the wait
 *      time if it is known that it is no longer necessary.
 * @NL80211_CMD_ACTION: Alias for @NL80211_CMD_FRAME for backward compatibility.
 * @NL80211_CMD_FRAME_TX_STATUS: Report TX status of a management frame
 *      transmitted with %NL80211_CMD_FRAME. %NL80211_ATTR_COOKIE identifies
 *      the TX command and %NL80211_ATTR_FRAME includes the contents of the
 *      frame. %NL80211_ATTR_ACK flag is included if the recipient acknowledged
 *      the frame.
 * @NL80211_CMD_ACTION_TX_STATUS: Alias for @NL80211_CMD_FRAME_TX_STATUS for
 *      backward compatibility.
 * @NL80211_CMD_SET_CQM: Connection quality monitor configuration. This command
 *      is used to configure connection quality monitoring notification trigger
 *      levels.
 * @NL80211_CMD_NOTIFY_CQM: Connection quality monitor notification. This
 *      command is used as an event to indicate the that a trigger level was
 *      reached.
 * @NL80211_CMD_SET_CHANNEL: Set the channel (using %NL80211_ATTR_WIPHY_FREQ
 *      and %NL80211_ATTR_WIPHY_CHANNEL_TYPE) the given interface (identifed
 *      by %NL80211_ATTR_IFINDEX) shall operate on.
 *      In case multiple channels are supported by the device, the mechanism
 *      with which it switches channels is implementation-defined.
 *      When a monitor interface is given, it can only switch channel while
 *      no other interfaces are operating to avoid disturbing the operation
 *      of any other interfaces, and other interfaces will again take
 *      precedence when they are used.
 *
 * @NL80211_CMD_SET_WDS_PEER: Set the MAC address of the peer on a WDS interface.
 *
 * @NL80211_CMD_JOIN_MESH: Join a mesh. The mesh ID must be given, and initial
 *      mesh config parameters may be given.
 * @NL80211_CMD_LEAVE_MESH: Leave the mesh network -- no special arguments, the
 *      network is determined by the network interface.
 *
 * @NL80211_CMD_UNPROT_DEAUTHENTICATE: Unprotected deauthentication frame
 *      notification. This event is used to indicate that an unprotected
 *      deauthentication frame was dropped when MFP is in use.
 * @NL80211_CMD_UNPROT_DISASSOCIATE: Unprotected disassociation frame
 *      notification. This event is used to indicate that an unprotected
 *      disassociation frame was dropped when MFP is in use.
 *
 * @NL80211_CMD_NEW_PEER_CANDIDATE: Notification on the reception of a
 *      beacon or probe response from a compatible mesh peer.  This is only
 *      sent while no station information (sta_info) exists for the new peer
 *      candidate and when @NL80211_MESH_SETUP_USERSPACE_AUTH is set.  On
 *      reception of this notification, userspace may decide to create a new
 *      station (@NL80211_CMD_NEW_STATION).  To stop this notification from
 *      reoccurring, the userspace authentication daemon may want to create the
 *      new station with the AUTHENTICATED flag unset and maybe change it later
 *      depending on the authentication result.
 *
 * @NL80211_CMD_GET_WOWLAN: get Wake-on-Wireless-LAN (WoWLAN) settings.
 * @NL80211_CMD_SET_WOWLAN: set Wake-on-Wireless-LAN (WoWLAN) settings.
 *      Since wireless is more complex than wired ethernet, it supports
 *      various triggers. These triggers can be configured through this
 *      command with the %NL80211_ATTR_WOWLAN_TRIGGERS attribute. For
 *      more background information, see
 *      http://wireless.kernel.org/en/users/Documentation/WoWLAN.
 *
 * @NL80211_CMD_SET_REKEY_OFFLOAD: This command is used give the driver
 *      the necessary information for supporting GTK rekey offload. This
 *      feature is typically used during WoWLAN. The configuration data
 *      is contained in %NL80211_ATTR_REKEY_DATA (which is nested and
 *      contains the data in sub-attributes). After rekeying happened,
 *      this command may also be sent by the driver as an MLME event to
 *      inform userspace of the new replay counter.
 *
 * @NL80211_CMD_MAX: highest used command number
 * @__NL80211_CMD_AFTER_LAST: internal use
 */
enum nl80211_commands {
/* don't change the order or add anything between, this is ABI! */
        NL80211_CMD_UNSPEC,

        NL80211_CMD_GET_WIPHY,          /* can dump */
        NL80211_CMD_SET_WIPHY,
        NL80211_CMD_NEW_WIPHY,
        NL80211_CMD_DEL_WIPHY,

        NL80211_CMD_GET_INTERFACE,      /* can dump */
        NL80211_CMD_SET_INTERFACE,
        NL80211_CMD_NEW_INTERFACE,
        NL80211_CMD_DEL_INTERFACE,

        NL80211_CMD_GET_KEY,
        NL80211_CMD_SET_KEY,
        NL80211_CMD_NEW_KEY,
        NL80211_CMD_DEL_KEY,

        NL80211_CMD_GET_BEACON,
        NL80211_CMD_SET_BEACON,
        NL80211_CMD_NEW_BEACON,
        NL80211_CMD_DEL_BEACON,

        NL80211_CMD_GET_STATION,
        NL80211_CMD_SET_STATION,
        NL80211_CMD_NEW_STATION,
        NL80211_CMD_DEL_STATION,

        NL80211_CMD_GET_MPATH,
        NL80211_CMD_SET_MPATH,
        NL80211_CMD_NEW_MPATH,
        NL80211_CMD_DEL_MPATH,

        NL80211_CMD_SET_BSS,

        NL80211_CMD_SET_REG,
        NL80211_CMD_REQ_SET_REG,

        NL80211_CMD_GET_MESH_CONFIG,
        NL80211_CMD_SET_MESH_CONFIG,

        NL80211_CMD_SET_MGMT_EXTRA_IE /* reserved; not used */,

        NL80211_CMD_GET_REG,

        NL80211_CMD_GET_SCAN,
        NL80211_CMD_TRIGGER_SCAN,
        NL80211_CMD_NEW_SCAN_RESULTS,
        NL80211_CMD_SCAN_ABORTED,

        NL80211_CMD_REG_CHANGE,

        NL80211_CMD_AUTHENTICATE,
        NL80211_CMD_ASSOCIATE,
        NL80211_CMD_DEAUTHENTICATE,
        NL80211_CMD_DISASSOCIATE,

        NL80211_CMD_MICHAEL_MIC_FAILURE,

        NL80211_CMD_REG_BEACON_HINT,

        NL80211_CMD_JOIN_IBSS,
        NL80211_CMD_LEAVE_IBSS,

        NL80211_CMD_TESTMODE,

        NL80211_CMD_CONNECT,
        NL80211_CMD_ROAM,
        NL80211_CMD_DISCONNECT,

        NL80211_CMD_SET_WIPHY_NETNS,

        NL80211_CMD_GET_SURVEY,
        NL80211_CMD_NEW_SURVEY_RESULTS,

        NL80211_CMD_SET_PMKSA,
        NL80211_CMD_DEL_PMKSA,
        NL80211_CMD_FLUSH_PMKSA,

        NL80211_CMD_REMAIN_ON_CHANNEL,
        NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,

        NL80211_CMD_SET_TX_BITRATE_MASK,

        NL80211_CMD_REGISTER_FRAME,
        NL80211_CMD_REGISTER_ACTION = NL80211_CMD_REGISTER_FRAME,
        NL80211_CMD_FRAME,
        NL80211_CMD_ACTION = NL80211_CMD_FRAME,
        NL80211_CMD_FRAME_TX_STATUS,
        NL80211_CMD_ACTION_TX_STATUS = NL80211_CMD_FRAME_TX_STATUS,

        NL80211_CMD_SET_POWER_SAVE,
        NL80211_CMD_GET_POWER_SAVE,

        NL80211_CMD_SET_CQM,
        NL80211_CMD_NOTIFY_CQM,

        NL80211_CMD_SET_CHANNEL,
        NL80211_CMD_SET_WDS_PEER,

        NL80211_CMD_FRAME_WAIT_CANCEL,

        NL80211_CMD_JOIN_MESH,
        NL80211_CMD_LEAVE_MESH,

        NL80211_CMD_UNPROT_DEAUTHENTICATE,
        NL80211_CMD_UNPROT_DISASSOCIATE,

        NL80211_CMD_NEW_PEER_CANDIDATE,

        NL80211_CMD_GET_WOWLAN,
        NL80211_CMD_SET_WOWLAN,

        NL80211_CMD_START_SCHED_SCAN,
        NL80211_CMD_STOP_SCHED_SCAN,
        NL80211_CMD_SCHED_SCAN_RESULTS,
        NL80211_CMD_SCHED_SCAN_STOPPED,

        NL80211_CMD_SET_REKEY_OFFLOAD,

        /* add new commands above here */

        /* used to define NL80211_CMD_MAX below */
        __NL80211_CMD_AFTER_LAST,
        NL80211_CMD_MAX = __NL80211_CMD_AFTER_LAST - 1
};

/*
 * Allow user space programs to use #ifdef on new commands by defining them
 * here
 */
#define NL80211_CMD_SET_BSS NL80211_CMD_SET_BSS
#define NL80211_CMD_SET_MGMT_EXTRA_IE NL80211_CMD_SET_MGMT_EXTRA_IE
#define NL80211_CMD_REG_CHANGE NL80211_CMD_REG_CHANGE
#define NL80211_CMD_AUTHENTICATE NL80211_CMD_AUTHENTICATE
#define NL80211_CMD_ASSOCIATE NL80211_CMD_ASSOCIATE
#define NL80211_CMD_DEAUTHENTICATE NL80211_CMD_DEAUTHENTICATE
#define NL80211_CMD_DISASSOCIATE NL80211_CMD_DISASSOCIATE
#define NL80211_CMD_REG_BEACON_HINT NL80211_CMD_REG_BEACON_HINT

/* source-level API compatibility */
#define NL80211_CMD_GET_MESH_PARAMS NL80211_CMD_GET_MESH_CONFIG
#define NL80211_CMD_SET_MESH_PARAMS NL80211_CMD_SET_MESH_CONFIG
#define NL80211_MESH_SETUP_VENDOR_PATH_SEL_IE NL80211_MESH_SETUP_IE

/**
 * enum nl80211_attrs - nl80211 netlink attributes
 *
 * @NL80211_ATTR_UNSPEC: unspecified attribute to catch errors
 *
 * @NL80211_ATTR_WIPHY: index of wiphy to operate on, cf.
 *      /sys/class/ieee80211/<phyname>/index
 * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
 * @NL80211_ATTR_WIPHY_TXQ_PARAMS: a nested array of TX queue parameters
 * @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
 * @NL80211_ATTR_WIPHY_CHANNEL_TYPE: included with NL80211_ATTR_WIPHY_FREQ
 *      if HT20 or HT40 are allowed (i.e., 802.11n disabled if not included):
 *      NL80211_CHAN_NO_HT = HT not allowed (i.e., same as not including
 *              this attribute)
 *      NL80211_CHAN_HT20 = HT20 only
 *      NL80211_CHAN_HT40MINUS = secondary channel is below the primary channel
 *      NL80211_CHAN_HT40PLUS = secondary channel is above the primary channel
 * @NL80211_ATTR_WIPHY_RETRY_SHORT: TX retry limit for frames whose length is
 *      less than or equal to the RTS threshold; allowed range: 1..255;
 *      dot11ShortRetryLimit; u8
 * @NL80211_ATTR_WIPHY_RETRY_LONG: TX retry limit for frames whose length is
 *      greater than the RTS threshold; allowed range: 1..255;
 *      dot11ShortLongLimit; u8
 * @NL80211_ATTR_WIPHY_FRAG_THRESHOLD: fragmentation threshold, i.e., maximum
 *      length in octets for frames; allowed range: 256..8000, disable
 *      fragmentation with (u32)-1; dot11FragmentationThreshold; u32
 * @NL80211_ATTR_WIPHY_RTS_THRESHOLD: RTS threshold (TX frames with length
 *      larger than or equal to this use RTS/CTS handshake); allowed range:
 *      0..65536, disable with (u32)-1; dot11RTSThreshold; u32
 * @NL80211_ATTR_WIPHY_COVERAGE_CLASS: Coverage Class as defined by IEEE 802.11
 *      section 7.3.2.9; dot11CoverageClass; u8
 *
 * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
 * @NL80211_ATTR_IFNAME: network interface name
 * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype
 *
 * @NL80211_ATTR_MAC: MAC address (various uses)
 *
 * @NL80211_ATTR_KEY_DATA: (temporal) key data; for TKIP this consists of
 *      16 bytes encryption key followed by 8 bytes each for TX and RX MIC
 *      keys
 * @NL80211_ATTR_KEY_IDX: key ID (u8, 0-3)
 * @NL80211_ATTR_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11
 *      section 7.3.2.25.1, e.g. 0x000FAC04)
 * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
 *      CCMP keys, each six bytes in little endian
 *
 * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU
 * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing
 * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
 * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
 *
 * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
 * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
 *      &enum nl80211_sta_flags (deprecated, use %NL80211_ATTR_STA_FLAGS2)
 * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
 *      IEEE 802.11 7.3.1.6 (u16).
 * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
 *      rates as defined by IEEE 802.11 7.3.2.2 but without the length
 *      restriction (at most %NL80211_MAX_SUPP_RATES).
 * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
 *      to, or the AP interface the station was originally added to to.
 * @NL80211_ATTR_STA_INFO: information about a station, part of station info
 *      given for %NL80211_CMD_GET_STATION, nested attribute containing
 *      info as possible, see &enum nl80211_sta_info.
 *
 * @NL80211_ATTR_WIPHY_BANDS: Information about an operating bands,
 *      consisting of a nested array.
 *
 * @NL80211_ATTR_MESH_ID: mesh id (1-32 bytes).
 * @NL80211_ATTR_STA_PLINK_ACTION: action to perform on the mesh peer link.
 * @NL80211_ATTR_MPATH_NEXT_HOP: MAC address of the next hop for a mesh path.
 * @NL80211_ATTR_MPATH_INFO: information about a mesh_path, part of mesh path
 *      info given for %NL80211_CMD_GET_MPATH, nested attribute described at
 *      &enum nl80211_mpath_info.
 *
 * @NL80211_ATTR_MNTR_FLAGS: flags, nested element with NLA_FLAG attributes of
 *      &enum nl80211_mntr_flags.
 *
 * @NL80211_ATTR_REG_ALPHA2: an ISO-3166-alpha2 country code for which the
 *      current regulatory domain should be set to or is already set to.
 *      For example, 'CR', for Costa Rica. This attribute is used by the kernel
 *      to query the CRDA to retrieve one regulatory domain. This attribute can
 *      also be used by userspace to query the kernel for the currently set
 *      regulatory domain. We chose an alpha2 as that is also used by the
 *      IEEE-802.11d country information element to identify a country.
 *      Users can also simply ask the wireless core to set regulatory domain
 *      to a specific alpha2.
 * @NL80211_ATTR_REG_RULES: a nested array of regulatory domain regulatory
 *      rules.
 *
 * @NL80211_ATTR_BSS_CTS_PROT: whether CTS protection is enabled (u8, 0 or 1)
 * @NL80211_ATTR_BSS_SHORT_PREAMBLE: whether short preamble is enabled
 *      (u8, 0 or 1)
 * @NL80211_ATTR_BSS_SHORT_SLOT_TIME: whether short slot time enabled
 *      (u8, 0 or 1)
 * @NL80211_ATTR_BSS_BASIC_RATES: basic rates, array of basic
 *      rates in format defined by IEEE 802.11 7.3.2.2 but without the length
 *      restriction (at most %NL80211_MAX_SUPP_RATES).
 *
 * @NL80211_ATTR_HT_CAPABILITY: HT Capability information element (from
 *      association request when used with NL80211_CMD_NEW_STATION)
 *
 * @NL80211_ATTR_SUPPORTED_IFTYPES: nested attribute containing all
 *      supported interface types, each a flag attribute with the number
 *      of the interface mode.
 *
 * @NL80211_ATTR_MGMT_SUBTYPE: Management frame subtype for
 *      %NL80211_CMD_SET_MGMT_EXTRA_IE.
 *
 * @NL80211_ATTR_IE: Information element(s) data (used, e.g., with
 *      %NL80211_CMD_SET_MGMT_EXTRA_IE).
 *
 * @NL80211_ATTR_MAX_NUM_SCAN_SSIDS: number of SSIDs you can scan with
 *      a single scan request, a wiphy attribute.
 * @NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS: number of SSIDs you can
 *      scan with a single scheduled scan request, a wiphy attribute.
 * @NL80211_ATTR_MAX_SCAN_IE_LEN: maximum length of information elements
 *      that can be added to a scan request
 * @NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN: maximum length of information
 *      elements that can be added to a scheduled scan request
 *
 * @NL80211_ATTR_SCAN_FREQUENCIES: nested attribute with frequencies (in MHz)
 * @NL80211_ATTR_SCAN_SSIDS: nested attribute with SSIDs, leave out for passive
 *      scanning and include a zero-length SSID (wildcard) for wildcard scan
 * @NL80211_ATTR_BSS: scan result BSS
 *
 * @NL80211_ATTR_REG_INITIATOR: indicates who requested the regulatory domain
 *      currently in effect. This could be any of the %NL80211_REGDOM_SET_BY_*
 * @NL80211_ATTR_REG_TYPE: indicates the type of the regulatory domain currently
 *      set. This can be one of the nl80211_reg_type (%NL80211_REGDOM_TYPE_*)
 *
 * @NL80211_ATTR_SUPPORTED_COMMANDS: wiphy attribute that specifies
 *      an array of command numbers (i.e. a mapping index to command number)
 *      that the driver for the given wiphy supports.
 *
 * @NL80211_ATTR_FRAME: frame data (binary attribute), including frame header
 *      and body, but not FCS; used, e.g., with NL80211_CMD_AUTHENTICATE and
 *      NL80211_CMD_ASSOCIATE events
 * @NL80211_ATTR_SSID: SSID (binary attribute, 0..32 octets)
 * @NL80211_ATTR_AUTH_TYPE: AuthenticationType, see &enum nl80211_auth_type,
 *      represented as a u32
 * @NL80211_ATTR_REASON_CODE: ReasonCode for %NL80211_CMD_DEAUTHENTICATE and
 *      %NL80211_CMD_DISASSOCIATE, u16
 *
 * @NL80211_ATTR_KEY_TYPE: Key Type, see &enum nl80211_key_type, represented as
 *      a u32
 *
 * @NL80211_ATTR_FREQ_BEFORE: A channel which has suffered a regulatory change
 *      due to considerations from a beacon hint. This attribute reflects
 *      the state of the channel _before_ the beacon hint processing. This
 *      attributes consists of a nested attribute containing
 *      NL80211_FREQUENCY_ATTR_*
 * @NL80211_ATTR_FREQ_AFTER: A channel which has suffered a regulatory change
 *      due to considerations from a beacon hint. This attribute reflects
 *      the state of the channel _after_ the beacon hint processing. This
 *      attributes consists of a nested attribute containing
 *      NL80211_FREQUENCY_ATTR_*
 *
 * @NL80211_ATTR_CIPHER_SUITES: a set of u32 values indicating the supported
 *      cipher suites
 *
 * @NL80211_ATTR_FREQ_FIXED: a flag indicating the IBSS should not try to look
 *      for other networks on different channels
 *
 * @NL80211_ATTR_TIMED_OUT: a flag indicating than an operation timed out; this
 *      is used, e.g., with %NL80211_CMD_AUTHENTICATE event
 *
 * @NL80211_ATTR_USE_MFP: Whether management frame protection (IEEE 802.11w) is
 *      used for the association (&enum nl80211_mfp, represented as a u32);
 *      this attribute can be used
 *      with %NL80211_CMD_ASSOCIATE request
 *
 * @NL80211_ATTR_STA_FLAGS2: Attribute containing a
 *      &struct nl80211_sta_flag_update.
 *
 * @NL80211_ATTR_CONTROL_PORT: A flag indicating whether user space controls
 *      IEEE 802.1X port, i.e., sets/clears %NL80211_STA_FLAG_AUTHORIZED, in
 *      station mode. If the flag is included in %NL80211_CMD_ASSOCIATE
 *      request, the driver will assume that the port is unauthorized until
 *      authorized by user space. Otherwise, port is marked authorized by
 *      default in station mode.
 * @NL80211_ATTR_CONTROL_PORT_ETHERTYPE: A 16-bit value indicating the
 *      ethertype that will be used for key negotiation. It can be
 *      specified with the associate and connect commands. If it is not
 *      specified, the value defaults to 0x888E (PAE, 802.1X). This
 *      attribute is also used as a flag in the wiphy information to
 *      indicate that protocols other than PAE are supported.
 * @NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT: When included along with
 *      %NL80211_ATTR_CONTROL_PORT_ETHERTYPE, indicates that the custom
 *      ethertype frames used for key negotiation must not be encrypted.
 *
 * @NL80211_ATTR_TESTDATA: Testmode data blob, passed through to the driver.
 *      We recommend using nested, driver-specific attributes within this.
 *
 * @NL80211_ATTR_DISCONNECTED_BY_AP: A flag indicating that the DISCONNECT
 *      event was due to the AP disconnecting the station, and not due to
 *      a local disconnect request.
 * @NL80211_ATTR_STATUS_CODE: StatusCode for the %NL80211_CMD_CONNECT
 *      event (u16)
 * @NL80211_ATTR_PRIVACY: Flag attribute, used with connect(), indicating
 *      that protected APs should be used.
 *
 * @NL80211_ATTR_CIPHERS_PAIRWISE: Used with CONNECT and ASSOCIATE to
 *      indicate which unicast key ciphers will be used with the connection
 *      (an array of u32).
 * @NL80211_ATTR_CIPHER_GROUP: Used with CONNECT and ASSOCIATE to indicate
 *      which group key cipher will be used with the connection (a u32).
 * @NL80211_ATTR_WPA_VERSIONS: Used with CONNECT and ASSOCIATE to indicate
 *      which WPA version(s) the AP we want to associate with is using
 *      (a u32 with flags from &enum nl80211_wpa_versions).
 * @NL80211_ATTR_AKM_SUITES: Used with CONNECT and ASSOCIATE to indicate
 *      which key management algorithm(s) to use (an array of u32).
 *
 * @NL80211_ATTR_REQ_IE: (Re)association request information elements as
 *      sent out by the card, for ROAM and successful CONNECT events.
 * @NL80211_ATTR_RESP_IE: (Re)association response information elements as
 *      sent by peer, for ROAM and successful CONNECT events.
 *
 * @NL80211_ATTR_PREV_BSSID: previous BSSID, to be used by in ASSOCIATE
 *      commands to specify using a reassociate frame
 *
 * @NL80211_ATTR_KEY: key information in a nested attribute with
 *      %NL80211_KEY_* sub-attributes
 * @NL80211_ATTR_KEYS: array of keys for static WEP keys for connect()
 *      and join_ibss(), key information is in a nested attribute each
 *      with %NL80211_KEY_* sub-attributes
 *
 * @NL80211_ATTR_PID: Process ID of a network namespace.
 *
 * @NL80211_ATTR_GENERATION: Used to indicate consistent snapshots for
 *      dumps. This number increases whenever the object list being
 *      dumped changes, and as such userspace can verify that it has
 *      obtained a complete and consistent snapshot by verifying that
 *      all dump messages contain the same generation number. If it
 *      changed then the list changed and the dump should be repeated
 *      completely from scratch.
 *
 * @NL80211_ATTR_4ADDR: Use 4-address frames on a virtual interface
 *
 * @NL80211_ATTR_SURVEY_INFO: survey information about a channel, part of
 *      the survey response for %NL80211_CMD_GET_SURVEY, nested attribute
 *      containing info as possible, see &enum survey_info.
 *
 * @NL80211_ATTR_PMKID: PMK material for PMKSA caching.
 * @NL80211_ATTR_MAX_NUM_PMKIDS: maximum number of PMKIDs a firmware can
 *      cache, a wiphy attribute.
 *
 * @NL80211_ATTR_DURATION: Duration of an operation in milliseconds, u32.
 * @NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION: Device attribute that
 *      specifies the maximum duration that can be requested with the
 *      remain-on-channel operation, in milliseconds, u32.
 *
 * @NL80211_ATTR_COOKIE: Generic 64-bit cookie to identify objects.
 *
 * @NL80211_ATTR_TX_RATES: Nested set of attributes
 *      (enum nl80211_tx_rate_attributes) describing TX rates per band. The
 *      enum nl80211_band value is used as the index (nla_type() of the nested
 *      data. If a band is not included, it will be configured to allow all
 *      rates based on negotiated supported rates information. This attribute
 *      is used with %NL80211_CMD_SET_TX_BITRATE_MASK.
 *
 * @NL80211_ATTR_FRAME_MATCH: A binary attribute which typically must contain
 *      at least one byte, currently used with @NL80211_CMD_REGISTER_FRAME.
 * @NL80211_ATTR_FRAME_TYPE: A u16 indicating the frame type/subtype for the
 *      @NL80211_CMD_REGISTER_FRAME command.
 * @NL80211_ATTR_TX_FRAME_TYPES: wiphy capability attribute, which is a
 *      nested attribute of %NL80211_ATTR_FRAME_TYPE attributes, containing
 *      information about which frame types can be transmitted with
 *      %NL80211_CMD_FRAME.
 * @NL80211_ATTR_RX_FRAME_TYPES: wiphy capability attribute, which is a
 *      nested attribute of %NL80211_ATTR_FRAME_TYPE attributes, containing
 *      information about which frame types can be registered for RX.
 *
 * @NL80211_ATTR_ACK: Flag attribute indicating that the frame was
 *      acknowledged by the recipient.
 *
 * @NL80211_ATTR_CQM: connection quality monitor configuration in a
 *      nested attribute with %NL80211_ATTR_CQM_* sub-attributes.
 *
 * @NL80211_ATTR_LOCAL_STATE_CHANGE: Flag attribute to indicate that a command
 *      is requesting a local authentication/association state change without
 *      invoking actual management frame exchange. This can be used with
 *      NL80211_CMD_AUTHENTICATE, NL80211_CMD_DEAUTHENTICATE,
 *      NL80211_CMD_DISASSOCIATE.
 *
 * @NL80211_ATTR_AP_ISOLATE: (AP mode) Do not forward traffic between stations
 *      connected to this BSS.
 *
 * @NL80211_ATTR_WIPHY_TX_POWER_SETTING: Transmit power setting type. See
 *      &enum nl80211_tx_power_setting for possible values.
 * @NL80211_ATTR_WIPHY_TX_POWER_LEVEL: Transmit power level in signed mBm units.
 *      This is used in association with @NL80211_ATTR_WIPHY_TX_POWER_SETTING
 *      for non-automatic settings.
 *
 * @NL80211_ATTR_SUPPORT_IBSS_RSN: The device supports IBSS RSN, which mostly
 *      means support for per-station GTKs.
 *
 * @NL80211_ATTR_WIPHY_ANTENNA_TX: Bitmap of allowed antennas for transmitting.
 *      This can be used to mask out antennas which are not attached or should
 *      not be used for transmitting. If an antenna is not selected in this
 *      bitmap the hardware is not allowed to transmit on this antenna.
 *
 *      Each bit represents one antenna, starting with antenna 1 at the first
 *      bit. Depending on which antennas are selected in the bitmap, 802.11n
 *      drivers can derive which chainmasks to use (if all antennas belonging to
 *      a particular chain are disabled this chain should be disabled) and if
 *      a chain has diversity antennas wether diversity should be used or not.
 *      HT capabilities (STBC, TX Beamforming, Antenna selection) can be
 *      derived from the available chains after applying the antenna mask.
 *      Non-802.11n drivers can derive wether to use diversity or not.
 *      Drivers may reject configurations or RX/TX mask combinations they cannot
 *      support by returning -EINVAL.
 *
 * @NL80211_ATTR_WIPHY_ANTENNA_RX: Bitmap of allowed antennas for receiving.
 *      This can be used to mask out antennas which are not attached or should
 *      not be used for receiving. If an antenna is not selected in this bitmap
 *      the hardware should not be configured to receive on this antenna.
 *      For a more detailed description see @NL80211_ATTR_WIPHY_ANTENNA_TX.
 *
 * @NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX: Bitmap of antennas which are available
 *      for configuration as TX antennas via the above parameters.
 *
 * @NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX: Bitmap of antennas which are available
 *      for configuration as RX antennas via the above parameters.
 *
 * @NL80211_ATTR_MCAST_RATE: Multicast tx rate (in 100 kbps) for IBSS
 *
 * @NL80211_ATTR_OFFCHANNEL_TX_OK: For management frame TX, the frame may be
 *      transmitted on another channel when the channel given doesn't match
 *      the current channel. If the current channel doesn't match and this
 *      flag isn't set, the frame will be rejected. This is also used as an
 *      nl80211 capability flag.
 *
 * @NL80211_ATTR_BSS_HTOPMODE: HT operation mode (u16)
 *
 * @NL80211_ATTR_KEY_DEFAULT_TYPES: A nested attribute containing flags
 *      attributes, specifying what a key should be set as default as.
 *      See &enum nl80211_key_default_types.
 *
 * @NL80211_ATTR_MESH_SETUP: Optional mesh setup parameters.  These cannot be
 *      changed once the mesh is active.
 * @NL80211_ATTR_MESH_CONFIG: Mesh configuration parameters, a nested attribute
 *      containing attributes from &enum nl80211_meshconf_params.
 * @NL80211_ATTR_SUPPORT_MESH_AUTH: Currently, this means the underlying driver
 *      allows auth frames in a mesh to be passed to userspace for processing via
 *      the @NL80211_MESH_SETUP_USERSPACE_AUTH flag.
 * @NL80211_ATTR_STA_PLINK_STATE: The state of a mesh peer link as
 *      defined in &enum nl80211_plink_state. Used when userspace is
 *      driving the peer link management state machine.
 *      @NL80211_MESH_SETUP_USERSPACE_AMPE must be enabled.
 *
 * @NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED: indicates, as part of the wiphy
 *      capabilities, the supported WoWLAN triggers
 * @NL80211_ATTR_WOWLAN_TRIGGERS: used by %NL80211_CMD_SET_WOWLAN to
 *      indicate which WoW triggers should be enabled. This is also
 *      used by %NL80211_CMD_GET_WOWLAN to get the currently enabled WoWLAN
 *      triggers.

 * @NL80211_ATTR_SCHED_SCAN_INTERVAL: Interval between scheduled scan
 *      cycles, in msecs.
 *
 * @NL80211_ATTR_INTERFACE_COMBINATIONS: Nested attribute listing the supported
 *      interface combinations. In each nested item, it contains attributes
 *      defined in &enum nl80211_if_combination_attrs.
 * @NL80211_ATTR_SOFTWARE_IFTYPES: Nested attribute (just like
 *      %NL80211_ATTR_SUPPORTED_IFTYPES) containing the interface types that
 *      are managed in software: interfaces of these types aren't subject to
 *      any restrictions in their number or combinations.
 *
 * @%NL80211_ATTR_REKEY_DATA: nested attribute containing the information
 *      necessary for GTK rekeying in the device, see &enum nl80211_rekey_data.
 *
 * @NL80211_ATTR_SCAN_SUPP_RATES: rates per to be advertised as supported in scan,
 *      nested array attribute containing an entry for each band, with the entry
 *      being a list of supported rates as defined by IEEE 802.11 7.3.2.2 but
 *      without the length restriction (at most %NL80211_MAX_SUPP_RATES).
 *
 * @NL80211_ATTR_MAX: highest attribute number currently defined
 * @__NL80211_ATTR_AFTER_LAST: internal use
 */
enum nl80211_attrs {
/* don't change the order or add anything between, this is ABI! */
        NL80211_ATTR_UNSPEC,

        NL80211_ATTR_WIPHY,
        NL80211_ATTR_WIPHY_NAME,

        NL80211_ATTR_IFINDEX,
        NL80211_ATTR_IFNAME,
        NL80211_ATTR_IFTYPE,

        NL80211_ATTR_MAC,

        NL80211_ATTR_KEY_DATA,
        NL80211_ATTR_KEY_IDX,
        NL80211_ATTR_KEY_CIPHER,
        NL80211_ATTR_KEY_SEQ,
        NL80211_ATTR_KEY_DEFAULT,

        NL80211_ATTR_BEACON_INTERVAL,
        NL80211_ATTR_DTIM_PERIOD,
        NL80211_ATTR_BEACON_HEAD,
        NL80211_ATTR_BEACON_TAIL,

        NL80211_ATTR_STA_AID,
        NL80211_ATTR_STA_FLAGS,
        NL80211_ATTR_STA_LISTEN_INTERVAL,
        NL80211_ATTR_STA_SUPPORTED_RATES,
        NL80211_ATTR_STA_VLAN,
        NL80211_ATTR_STA_INFO,

        NL80211_ATTR_WIPHY_BANDS,

        NL80211_ATTR_MNTR_FLAGS,

        NL80211_ATTR_MESH_ID,
        NL80211_ATTR_STA_PLINK_ACTION,
        NL80211_ATTR_MPATH_NEXT_HOP,
        NL80211_ATTR_MPATH_INFO,

        NL80211_ATTR_BSS_CTS_PROT,
        NL80211_ATTR_BSS_SHORT_PREAMBLE,
        NL80211_ATTR_BSS_SHORT_SLOT_TIME,

        NL80211_ATTR_HT_CAPABILITY,

        NL80211_ATTR_SUPPORTED_IFTYPES,

        NL80211_ATTR_REG_ALPHA2,
        NL80211_ATTR_REG_RULES,

        NL80211_ATTR_MESH_CONFIG,

        NL80211_ATTR_BSS_BASIC_RATES,

        NL80211_ATTR_WIPHY_TXQ_PARAMS,
        NL80211_ATTR_WIPHY_FREQ,
        NL80211_ATTR_WIPHY_CHANNEL_TYPE,

        NL80211_ATTR_KEY_DEFAULT_MGMT,

        NL80211_ATTR_MGMT_SUBTYPE,
        NL80211_ATTR_IE,

        NL80211_ATTR_MAX_NUM_SCAN_SSIDS,

        NL80211_ATTR_SCAN_FREQUENCIES,
        NL80211_ATTR_SCAN_SSIDS,
        NL80211_ATTR_GENERATION, /* replaces old SCAN_GENERATION */
        NL80211_ATTR_BSS,

        NL80211_ATTR_REG_INITIATOR,
        NL80211_ATTR_REG_TYPE,

        NL80211_ATTR_SUPPORTED_COMMANDS,

        NL80211_ATTR_FRAME,
        NL80211_ATTR_SSID,
        NL80211_ATTR_AUTH_TYPE,
        NL80211_ATTR_REASON_CODE,

        NL80211_ATTR_KEY_TYPE,

        NL80211_ATTR_MAX_SCAN_IE_LEN,
        NL80211_ATTR_CIPHER_SUITES,

        NL80211_ATTR_FREQ_BEFORE,
        NL80211_ATTR_FREQ_AFTER,

        NL80211_ATTR_FREQ_FIXED,


        NL80211_ATTR_WIPHY_RETRY_SHORT,
        NL80211_ATTR_WIPHY_RETRY_LONG,
        NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
        NL80211_ATTR_WIPHY_RTS_THRESHOLD,

        NL80211_ATTR_TIMED_OUT,

        NL80211_ATTR_USE_MFP,

        NL80211_ATTR_STA_FLAGS2,

        NL80211_ATTR_CONTROL_PORT,

        NL80211_ATTR_TESTDATA,

        NL80211_ATTR_PRIVACY,

        NL80211_ATTR_DISCONNECTED_BY_AP,
        NL80211_ATTR_STATUS_CODE,

        NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
        NL80211_ATTR_CIPHER_SUITE_GROUP,
        NL80211_ATTR_WPA_VERSIONS,
        NL80211_ATTR_AKM_SUITES,

        NL80211_ATTR_REQ_IE,
        NL80211_ATTR_RESP_IE,

        NL80211_ATTR_PREV_BSSID,

        NL80211_ATTR_KEY,
        NL80211_ATTR_KEYS,

        NL80211_ATTR_PID,

        NL80211_ATTR_4ADDR,

        NL80211_ATTR_SURVEY_INFO,

        NL80211_ATTR_PMKID,
        NL80211_ATTR_MAX_NUM_PMKIDS,

        NL80211_ATTR_DURATION,

        NL80211_ATTR_COOKIE,

        NL80211_ATTR_WIPHY_COVERAGE_CLASS,

        NL80211_ATTR_TX_RATES,

        NL80211_ATTR_FRAME_MATCH,

        NL80211_ATTR_ACK,

        NL80211_ATTR_PS_STATE,

        NL80211_ATTR_CQM,

        NL80211_ATTR_LOCAL_STATE_CHANGE,

        NL80211_ATTR_AP_ISOLATE,

        NL80211_ATTR_WIPHY_TX_POWER_SETTING,
        NL80211_ATTR_WIPHY_TX_POWER_LEVEL,

        NL80211_ATTR_TX_FRAME_TYPES,
        NL80211_ATTR_RX_FRAME_TYPES,
        NL80211_ATTR_FRAME_TYPE,

        NL80211_ATTR_CONTROL_PORT_ETHERTYPE,
        NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT,

        NL80211_ATTR_SUPPORT_IBSS_RSN,

        NL80211_ATTR_WIPHY_ANTENNA_TX,
        NL80211_ATTR_WIPHY_ANTENNA_RX,

        NL80211_ATTR_MCAST_RATE,

        NL80211_ATTR_OFFCHANNEL_TX_OK,

        NL80211_ATTR_BSS_HT_OPMODE,

        NL80211_ATTR_KEY_DEFAULT_TYPES,

        NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,

        NL80211_ATTR_MESH_SETUP,

        NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
        NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,

        NL80211_ATTR_SUPPORT_MESH_AUTH,
        NL80211_ATTR_STA_PLINK_STATE,

        NL80211_ATTR_WOWLAN_TRIGGERS,
        NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED,

        NL80211_ATTR_SCHED_SCAN_INTERVAL,

        NL80211_ATTR_INTERFACE_COMBINATIONS,
        NL80211_ATTR_SOFTWARE_IFTYPES,

        NL80211_ATTR_REKEY_DATA,

        NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
        NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,

        NL80211_ATTR_SCAN_SUPP_RATES,

        /* add attributes here, update the policy in nl80211.c */

        __NL80211_ATTR_AFTER_LAST,
        NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
};

/* source-level API compatibility */
#define NL80211_ATTR_SCAN_GENERATION NL80211_ATTR_GENERATION
#define NL80211_ATTR_MESH_PARAMS NL80211_ATTR_MESH_CONFIG

/*
 * Allow user space programs to use #ifdef on new attributes by defining them
 * here
 */
#define NL80211_CMD_CONNECT NL80211_CMD_CONNECT
#define NL80211_ATTR_HT_CAPABILITY NL80211_ATTR_HT_CAPABILITY
#define NL80211_ATTR_BSS_BASIC_RATES NL80211_ATTR_BSS_BASIC_RATES
#define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
#define NL80211_ATTR_WIPHY_FREQ NL80211_ATTR_WIPHY_FREQ
#define NL80211_ATTR_WIPHY_CHANNEL_TYPE NL80211_ATTR_WIPHY_CHANNEL_TYPE
#define NL80211_ATTR_MGMT_SUBTYPE NL80211_ATTR_MGMT_SUBTYPE
#define NL80211_ATTR_IE NL80211_ATTR_IE
#define NL80211_ATTR_REG_INITIATOR NL80211_ATTR_REG_INITIATOR
#define NL80211_ATTR_REG_TYPE NL80211_ATTR_REG_TYPE
#define NL80211_ATTR_FRAME NL80211_ATTR_FRAME
#define NL80211_ATTR_SSID NL80211_ATTR_SSID
#define NL80211_ATTR_AUTH_TYPE NL80211_ATTR_AUTH_TYPE
#define NL80211_ATTR_REASON_CODE NL80211_ATTR_REASON_CODE
#define NL80211_ATTR_CIPHER_SUITES_PAIRWISE NL80211_ATTR_CIPHER_SUITES_PAIRWISE
#define NL80211_ATTR_CIPHER_SUITE_GROUP NL80211_ATTR_CIPHER_SUITE_GROUP
#define NL80211_ATTR_WPA_VERSIONS NL80211_ATTR_WPA_VERSIONS
#define NL80211_ATTR_AKM_SUITES NL80211_ATTR_AKM_SUITES
#define NL80211_ATTR_KEY NL80211_ATTR_KEY
#define NL80211_ATTR_KEYS NL80211_ATTR_KEYS

#define NL80211_MAX_SUPP_RATES                  32
#define NL80211_MAX_SUPP_REG_RULES              32
#define NL80211_TKIP_DATA_OFFSET_ENCR_KEY       0
#define NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY     16
#define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY     24
#define NL80211_HT_CAPABILITY_LEN               26

#define NL80211_MAX_NR_CIPHER_SUITES            5
#define NL80211_MAX_NR_AKM_SUITES               2

/**
 * enum nl80211_iftype - (virtual) interface types
 *
 * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides
 * @NL80211_IFTYPE_ADHOC: independent BSS member
 * @NL80211_IFTYPE_STATION: managed BSS member
 * @NL80211_IFTYPE_AP: access point
 * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points; VLAN interfaces
 *      are a bit special in that they must always be tied to a pre-existing
 *      AP type interface.
 * @NL80211_IFTYPE_WDS: wireless distribution interface
 * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames
 * @NL80211_IFTYPE_MESH_POINT: mesh point
 * @NL80211_IFTYPE_P2P_CLIENT: P2P client
 * @NL80211_IFTYPE_P2P_GO: P2P group owner
 * @NL80211_IFTYPE_MAX: highest interface type number currently defined
 * @NUM_NL80211_IFTYPES: number of defined interface types
 *
 * These values are used with the %NL80211_ATTR_IFTYPE
 * to set the type of an interface.
 *
 */
enum nl80211_iftype {
        NL80211_IFTYPE_UNSPECIFIED,
        NL80211_IFTYPE_ADHOC,
        NL80211_IFTYPE_STATION,
        NL80211_IFTYPE_AP,
        NL80211_IFTYPE_AP_VLAN,
        NL80211_IFTYPE_WDS,
        NL80211_IFTYPE_MONITOR,
        NL80211_IFTYPE_MESH_POINT,
        NL80211_IFTYPE_P2P_CLIENT,
        NL80211_IFTYPE_P2P_GO,

        /* keep last */
        NUM_NL80211_IFTYPES,
        NL80211_IFTYPE_MAX = NUM_NL80211_IFTYPES - 1
};

/**
 * enum nl80211_sta_flags - station flags
 *
 * Station flags. When a station is added to an AP interface, it is
 * assumed to be already associated (and hence authenticated.)
 *
 * @__NL80211_STA_FLAG_INVALID: attribute number 0 is reserved
 * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X)
 * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
 *      with short barker preamble
 * @NL80211_STA_FLAG_WME: station is WME/QoS capable
 * @NL80211_STA_FLAG_MFP: station uses management frame protection
 * @NL80211_STA_FLAG_AUTHENTICATED: station is authenticated
 * @NL80211_STA_FLAG_MAX: highest station flag number currently defined
 * @__NL80211_STA_FLAG_AFTER_LAST: internal use
 */
enum nl80211_sta_flags {
        __NL80211_STA_FLAG_INVALID,
        NL80211_STA_FLAG_AUTHORIZED,
        NL80211_STA_FLAG_SHORT_PREAMBLE,
        NL80211_STA_FLAG_WME,
        NL80211_STA_FLAG_MFP,
        NL80211_STA_FLAG_AUTHENTICATED,

        /* keep last */
        __NL80211_STA_FLAG_AFTER_LAST,
        NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
};

/**
 * struct nl80211_sta_flag_update - station flags mask/set
 * @mask: mask of station flags to set
 * @set: which values to set them to
 *
 * Both mask and set contain bits as per &enum nl80211_sta_flags.
 */
struct nl80211_sta_flag_update {
        __u32 mask;
        __u32 set;
} __attribute__((packed));

/**
 * enum nl80211_rate_info - bitrate information
 *
 * These attribute types are used with %NL80211_STA_INFO_TXRATE
 * when getting information about the bitrate of a station.
 *
 * @__NL80211_RATE_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_RATE_INFO_BITRATE: total bitrate (u16, 100kbit/s)
 * @NL80211_RATE_INFO_MCS: mcs index for 802.11n (u8)
 * @NL80211_RATE_INFO_40_MHZ_WIDTH: 40 Mhz dualchannel bitrate
 * @NL80211_RATE_INFO_SHORT_GI: 400ns guard interval
 * @NL80211_RATE_INFO_MAX: highest rate_info number currently defined
 * @__NL80211_RATE_INFO_AFTER_LAST: internal use
 */
enum nl80211_rate_info {
        __NL80211_RATE_INFO_INVALID,
        NL80211_RATE_INFO_BITRATE,
        NL80211_RATE_INFO_MCS,
        NL80211_RATE_INFO_40_MHZ_WIDTH,
        NL80211_RATE_INFO_SHORT_GI,

        /* keep last */
        __NL80211_RATE_INFO_AFTER_LAST,
        NL80211_RATE_INFO_MAX = __NL80211_RATE_INFO_AFTER_LAST - 1
};

/**
 * enum nl80211_sta_bss_param - BSS information collected by STA
 *
 * These attribute types are used with %NL80211_STA_INFO_BSS_PARAM
 * when getting information about the bitrate of a station.
 *
 * @__NL80211_STA_BSS_PARAM_INVALID: attribute number 0 is reserved
 * @NL80211_STA_BSS_PARAM_CTS_PROT: whether CTS protection is enabled (flag)
 * @NL80211_STA_BSS_PARAM_SHORT_PREAMBLE:  whether short preamble is enabled
 *      (flag)
 * @NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME:  whether short slot time is enabled
 *      (flag)
 * @NL80211_STA_BSS_PARAM_DTIM_PERIOD: DTIM period for beaconing (u8)
 * @NL80211_STA_BSS_PARAM_BEACON_INTERVAL: Beacon interval (u16)
 * @NL80211_STA_BSS_PARAM_MAX: highest sta_bss_param number currently defined
 * @__NL80211_STA_BSS_PARAM_AFTER_LAST: internal use
 */
enum nl80211_sta_bss_param {
        __NL80211_STA_BSS_PARAM_INVALID,
        NL80211_STA_BSS_PARAM_CTS_PROT,
        NL80211_STA_BSS_PARAM_SHORT_PREAMBLE,
        NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME,
        NL80211_STA_BSS_PARAM_DTIM_PERIOD,
        NL80211_STA_BSS_PARAM_BEACON_INTERVAL,

        /* keep last */
        __NL80211_STA_BSS_PARAM_AFTER_LAST,
        NL80211_STA_BSS_PARAM_MAX = __NL80211_STA_BSS_PARAM_AFTER_LAST - 1
};

/**
 * enum nl80211_sta_info - station information
 *
 * These attribute types are used with %NL80211_ATTR_STA_INFO
 * when getting information about a station.
 *
 * @__NL80211_STA_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_STA_INFO_INACTIVE_TIME: time since last activity (u32, msecs)
 * @NL80211_STA_INFO_RX_BYTES: total received bytes (u32, from this station)
 * @NL80211_STA_INFO_TX_BYTES: total transmitted bytes (u32, to this station)
 * @NL80211_STA_INFO_SIGNAL: signal strength of last received PPDU (u8, dBm)
 * @NL80211_STA_INFO_TX_BITRATE: current unicast tx rate, nested attribute
 *      containing info as possible, see &enum nl80211_rate_info
 * @NL80211_STA_INFO_RX_PACKETS: total received packet (u32, from this station)
 * @NL80211_STA_INFO_TX_PACKETS: total transmitted packets (u32, to this
 *      station)
 * @NL80211_STA_INFO_TX_RETRIES: total retries (u32, to this station)
 * @NL80211_STA_INFO_TX_FAILED: total failed packets (u32, to this station)
 * @NL80211_STA_INFO_SIGNAL_AVG: signal strength average (u8, dBm)
 * @NL80211_STA_INFO_LLID: the station's mesh LLID
 * @NL80211_STA_INFO_PLID: the station's mesh PLID
 * @NL80211_STA_INFO_PLINK_STATE: peer link state for the station
 *      (see %enum nl80211_plink_state)
 * @NL80211_STA_INFO_RX_BITRATE: last unicast data frame rx rate, nested
 *      attribute, like NL80211_STA_INFO_TX_BITRATE.
 * @NL80211_STA_INFO_BSS_PARAM: current station's view of BSS, nested attribute
 *     containing info as possible, see &enum nl80211_sta_bss_param
 * @NL80211_STA_INFO_CONNECTED_TIME: time since the station is last connected
 * @__NL80211_STA_INFO_AFTER_LAST: internal
 * @NL80211_STA_INFO_MAX: highest possible station info attribute
 */
enum nl80211_sta_info {
        __NL80211_STA_INFO_INVALID,
        NL80211_STA_INFO_INACTIVE_TIME,
        NL80211_STA_INFO_RX_BYTES,
        NL80211_STA_INFO_TX_BYTES,
        NL80211_STA_INFO_LLID,
        NL80211_STA_INFO_PLID,
        NL80211_STA_INFO_PLINK_STATE,
        NL80211_STA_INFO_SIGNAL,
        NL80211_STA_INFO_TX_BITRATE,
        NL80211_STA_INFO_RX_PACKETS,
        NL80211_STA_INFO_TX_PACKETS,
        NL80211_STA_INFO_TX_RETRIES,
        NL80211_STA_INFO_TX_FAILED,
        NL80211_STA_INFO_SIGNAL_AVG,
        NL80211_STA_INFO_RX_BITRATE,
        NL80211_STA_INFO_BSS_PARAM,
        NL80211_STA_INFO_CONNECTED_TIME,

        /* keep last */
        __NL80211_STA_INFO_AFTER_LAST,
        NL80211_STA_INFO_MAX = __NL80211_STA_INFO_AFTER_LAST - 1
};

/**
 * enum nl80211_mpath_flags - nl80211 mesh path flags
 *
 * @NL80211_MPATH_FLAG_ACTIVE: the mesh path is active
 * @NL80211_MPATH_FLAG_RESOLVING: the mesh path discovery process is running
 * @NL80211_MPATH_FLAG_SN_VALID: the mesh path contains a valid SN
 * @NL80211_MPATH_FLAG_FIXED: the mesh path has been manually set
 * @NL80211_MPATH_FLAG_RESOLVED: the mesh path discovery process succeeded
 */
enum nl80211_mpath_flags {
        NL80211_MPATH_FLAG_ACTIVE =     1<<0,
        NL80211_MPATH_FLAG_RESOLVING =  1<<1,
        NL80211_MPATH_FLAG_SN_VALID =   1<<2,
        NL80211_MPATH_FLAG_FIXED =      1<<3,
        NL80211_MPATH_FLAG_RESOLVED =   1<<4,
};

/**
 * enum nl80211_mpath_info - mesh path information
 *
 * These attribute types are used with %NL80211_ATTR_MPATH_INFO when getting
 * information about a mesh path.
 *
 * @__NL80211_MPATH_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_MPATH_INFO_FRAME_QLEN: number of queued frames for this destination
 * @NL80211_MPATH_INFO_SN: destination sequence number
 * @NL80211_MPATH_INFO_METRIC: metric (cost) of this mesh path
 * @NL80211_MPATH_INFO_EXPTIME: expiration time for the path, in msec from now
 * @NL80211_MPATH_INFO_FLAGS: mesh path flags, enumerated in
 *      &enum nl80211_mpath_flags;
 * @NL80211_MPATH_INFO_DISCOVERY_TIMEOUT: total path discovery timeout, in msec
 * @NL80211_MPATH_INFO_DISCOVERY_RETRIES: mesh path discovery retries
 * @NL80211_MPATH_INFO_MAX: highest mesh path information attribute number
 *      currently defind
 * @__NL80211_MPATH_INFO_AFTER_LAST: internal use
 */
enum nl80211_mpath_info {
        __NL80211_MPATH_INFO_INVALID,
        NL80211_MPATH_INFO_FRAME_QLEN,
        NL80211_MPATH_INFO_SN,
        NL80211_MPATH_INFO_METRIC,
        NL80211_MPATH_INFO_EXPTIME,
        NL80211_MPATH_INFO_FLAGS,
        NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
        NL80211_MPATH_INFO_DISCOVERY_RETRIES,

        /* keep last */
        __NL80211_MPATH_INFO_AFTER_LAST,
        NL80211_MPATH_INFO_MAX = __NL80211_MPATH_INFO_AFTER_LAST - 1
};

/**
 * enum nl80211_band_attr - band attributes
 * @__NL80211_BAND_ATTR_INVALID: attribute number 0 is reserved
 * @NL80211_BAND_ATTR_FREQS: supported frequencies in this band,
 *      an array of nested frequency attributes
 * @NL80211_BAND_ATTR_RATES: supported bitrates in this band,
 *      an array of nested bitrate attributes
 * @NL80211_BAND_ATTR_HT_MCS_SET: 16-byte attribute containing the MCS set as
 *      defined in 802.11n
 * @NL80211_BAND_ATTR_HT_CAPA: HT capabilities, as in the HT information IE
 * @NL80211_BAND_ATTR_HT_AMPDU_FACTOR: A-MPDU factor, as in 11n
 * @NL80211_BAND_ATTR_HT_AMPDU_DENSITY: A-MPDU density, as in 11n
 * @NL80211_BAND_ATTR_MAX: highest band attribute currently defined
 * @__NL80211_BAND_ATTR_AFTER_LAST: internal use
 */
enum nl80211_band_attr {
        __NL80211_BAND_ATTR_INVALID,
        NL80211_BAND_ATTR_FREQS,
        NL80211_BAND_ATTR_RATES,

        NL80211_BAND_ATTR_HT_MCS_SET,
        NL80211_BAND_ATTR_HT_CAPA,
        NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
        NL80211_BAND_ATTR_HT_AMPDU_DENSITY,

        /* keep last */
        __NL80211_BAND_ATTR_AFTER_LAST,
        NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1
};

#define NL80211_BAND_ATTR_HT_CAPA NL80211_BAND_ATTR_HT_CAPA

/**
 * enum nl80211_frequency_attr - frequency attributes
 * @__NL80211_FREQUENCY_ATTR_INVALID: attribute number 0 is reserved
 * @NL80211_FREQUENCY_ATTR_FREQ: Frequency in MHz
 * @NL80211_FREQUENCY_ATTR_DISABLED: Channel is disabled in current
 *      regulatory domain.
 * @NL80211_FREQUENCY_ATTR_PASSIVE_SCAN: Only passive scanning is
 *      permitted on this channel in current regulatory domain.
 * @NL80211_FREQUENCY_ATTR_NO_IBSS: IBSS networks are not permitted
 *      on this channel in current regulatory domain.
 * @NL80211_FREQUENCY_ATTR_RADAR: Radar detection is mandatory
 *      on this channel in current regulatory domain.
 * @NL80211_FREQUENCY_ATTR_MAX_TX_POWER: Maximum transmission power in mBm
 *      (100 * dBm).
 * @NL80211_FREQUENCY_ATTR_MAX: highest frequency attribute number
 *      currently defined
 * @__NL80211_FREQUENCY_ATTR_AFTER_LAST: internal use
 */
enum nl80211_frequency_attr {
        __NL80211_FREQUENCY_ATTR_INVALID,
        NL80211_FREQUENCY_ATTR_FREQ,
        NL80211_FREQUENCY_ATTR_DISABLED,
        NL80211_FREQUENCY_ATTR_PASSIVE_SCAN,
        NL80211_FREQUENCY_ATTR_NO_IBSS,
        NL80211_FREQUENCY_ATTR_RADAR,
        NL80211_FREQUENCY_ATTR_MAX_TX_POWER,

        /* keep last */
        __NL80211_FREQUENCY_ATTR_AFTER_LAST,
        NL80211_FREQUENCY_ATTR_MAX = __NL80211_FREQUENCY_ATTR_AFTER_LAST - 1
};

#define NL80211_FREQUENCY_ATTR_MAX_TX_POWER NL80211_FREQUENCY_ATTR_MAX_TX_POWER

/**
 * enum nl80211_bitrate_attr - bitrate attributes
 * @__NL80211_BITRATE_ATTR_INVALID: attribute number 0 is reserved
 * @NL80211_BITRATE_ATTR_RATE: Bitrate in units of 100 kbps
 * @NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE: Short preamble supported
 *      in 2.4 GHz band.
 * @NL80211_BITRATE_ATTR_MAX: highest bitrate attribute number
 *      currently defined
 * @__NL80211_BITRATE_ATTR_AFTER_LAST: internal use
 */
enum nl80211_bitrate_attr {
        __NL80211_BITRATE_ATTR_INVALID,
        NL80211_BITRATE_ATTR_RATE,
        NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE,

        /* keep last */
        __NL80211_BITRATE_ATTR_AFTER_LAST,
        NL80211_BITRATE_ATTR_MAX = __NL80211_BITRATE_ATTR_AFTER_LAST - 1
};

/**
 * enum nl80211_initiator - Indicates the initiator of a reg domain request
 * @NL80211_REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world
 *      regulatory domain.
 * @NL80211_REGDOM_SET_BY_USER: User asked the wireless core to set the
 *      regulatory domain.
 * @NL80211_REGDOM_SET_BY_DRIVER: a wireless drivers has hinted to the
 *      wireless core it thinks its knows the regulatory domain we should be in.
 * @NL80211_REGDOM_SET_BY_COUNTRY_IE: the wireless core has received an
 *      802.11 country information element with regulatory information it
 *      thinks we should consider. cfg80211 only processes the country
 *      code from the IE, and relies on the regulatory domain information
 *      structure passed by userspace (CRDA) from our wireless-regdb.
 *      If a channel is enabled but the country code indicates it should
 *      be disabled we disable the channel and re-enable it upon disassociation.
 */
enum nl80211_reg_initiator {
        NL80211_REGDOM_SET_BY_CORE,
        NL80211_REGDOM_SET_BY_USER,
        NL80211_REGDOM_SET_BY_DRIVER,
        NL80211_REGDOM_SET_BY_COUNTRY_IE,
};

/**
 * enum nl80211_reg_type - specifies the type of regulatory domain
 * @NL80211_REGDOM_TYPE_COUNTRY: the regulatory domain set is one that pertains
 *      to a specific country. When this is set you can count on the
 *      ISO / IEC 3166 alpha2 country code being valid.
 * @NL80211_REGDOM_TYPE_WORLD: the regulatory set domain is the world regulatory
 *      domain.
 * @NL80211_REGDOM_TYPE_CUSTOM_WORLD: the regulatory domain set is a custom
 *      driver specific world regulatory domain. These do not apply system-wide
 *      and are only applicable to the individual devices which have requested
 *      them to be applied.
 * @NL80211_REGDOM_TYPE_INTERSECTION: the regulatory domain set is the product
 *      of an intersection between two regulatory domains -- the previously
 *      set regulatory domain on the system and the last accepted regulatory
 *      domain request to be processed.
 */
enum nl80211_reg_type {
        NL80211_REGDOM_TYPE_COUNTRY,
        NL80211_REGDOM_TYPE_WORLD,
        NL80211_REGDOM_TYPE_CUSTOM_WORLD,
        NL80211_REGDOM_TYPE_INTERSECTION,
};

/**
 * enum nl80211_reg_rule_attr - regulatory rule attributes
 * @__NL80211_REG_RULE_ATTR_INVALID: attribute number 0 is reserved
 * @NL80211_ATTR_REG_RULE_FLAGS: a set of flags which specify additional
 *      considerations for a given frequency range. These are the
 *      &enum nl80211_reg_rule_flags.
 * @NL80211_ATTR_FREQ_RANGE_START: starting frequencry for the regulatory
 *      rule in KHz. This is not a center of frequency but an actual regulatory
 *      band edge.
 * @NL80211_ATTR_FREQ_RANGE_END: ending frequency for the regulatory rule
 *      in KHz. This is not a center a frequency but an actual regulatory
 *      band edge.
 * @NL80211_ATTR_FREQ_RANGE_MAX_BW: maximum allowed bandwidth for this
 *      frequency range, in KHz.
 * @NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN: the maximum allowed antenna gain
 *      for a given frequency range. The value is in mBi (100 * dBi).
 *      If you don't have one then don't send this.
 * @NL80211_ATTR_POWER_RULE_MAX_EIRP: the maximum allowed EIRP for
 *      a given frequency range. The value is in mBm (100 * dBm).
 * @NL80211_REG_RULE_ATTR_MAX: highest regulatory rule attribute number
 *      currently defined
 * @__NL80211_REG_RULE_ATTR_AFTER_LAST: internal use
 */
enum nl80211_reg_rule_attr {
        __NL80211_REG_RULE_ATTR_INVALID,
        NL80211_ATTR_REG_RULE_FLAGS,

        NL80211_ATTR_FREQ_RANGE_START,
        NL80211_ATTR_FREQ_RANGE_END,
        NL80211_ATTR_FREQ_RANGE_MAX_BW,

        NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
        NL80211_ATTR_POWER_RULE_MAX_EIRP,

        /* keep last */
        __NL80211_REG_RULE_ATTR_AFTER_LAST,
        NL80211_REG_RULE_ATTR_MAX = __NL80211_REG_RULE_ATTR_AFTER_LAST - 1
};

/**
 * enum nl80211_reg_rule_flags - regulatory rule flags
 *
 * @NL80211_RRF_NO_OFDM: OFDM modulation not allowed
 * @NL80211_RRF_NO_CCK: CCK modulation not allowed
 * @NL80211_RRF_NO_INDOOR: indoor operation not allowed
 * @NL80211_RRF_NO_OUTDOOR: outdoor operation not allowed
 * @NL80211_RRF_DFS: DFS support is required to be used
 * @NL80211_RRF_PTP_ONLY: this is only for Point To Point links
 * @NL80211_RRF_PTMP_ONLY: this is only for Point To Multi Point links
 * @NL80211_RRF_PASSIVE_SCAN: passive scan is required
 * @NL80211_RRF_NO_IBSS: no IBSS is allowed
 */
enum nl80211_reg_rule_flags {
        NL80211_RRF_NO_OFDM             = 1<<0,
        NL80211_RRF_NO_CCK              = 1<<1,
        NL80211_RRF_NO_INDOOR           = 1<<2,
        NL80211_RRF_NO_OUTDOOR          = 1<<3,
        NL80211_RRF_DFS                 = 1<<4,
        NL80211_RRF_PTP_ONLY            = 1<<5,
        NL80211_RRF_PTMP_ONLY           = 1<<6,
        NL80211_RRF_PASSIVE_SCAN        = 1<<7,
        NL80211_RRF_NO_IBSS             = 1<<8,
};

/**
 * enum nl80211_survey_info - survey information
 *
 * These attribute types are used with %NL80211_ATTR_SURVEY_INFO
 * when getting information about a survey.
 *
 * @__NL80211_SURVEY_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_SURVEY_INFO_FREQUENCY: center frequency of channel
 * @NL80211_SURVEY_INFO_NOISE: noise level of channel (u8, dBm)
 * @NL80211_SURVEY_INFO_IN_USE: channel is currently being used
 * @NL80211_SURVEY_INFO_CHANNEL_TIME: amount of time (in ms) that the radio
 *      spent on this channel
 * @NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY: amount of the time the primary
 *      channel was sensed busy (either due to activity or energy detect)
 * @NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: amount of time the extension
 *      channel was sensed busy
 * @NL80211_SURVEY_INFO_CHANNEL_TIME_RX: amount of time the radio spent
 *      receiving data
 * @NL80211_SURVEY_INFO_CHANNEL_TIME_TX: amount of time the radio spent
 *      transmitting data
 * @NL80211_SURVEY_INFO_MAX: highest survey info attribute number
 *      currently defined
 * @__NL80211_SURVEY_INFO_AFTER_LAST: internal use
 */
enum nl80211_survey_info {
        __NL80211_SURVEY_INFO_INVALID,
        NL80211_SURVEY_INFO_FREQUENCY,
        NL80211_SURVEY_INFO_NOISE,
        NL80211_SURVEY_INFO_IN_USE,
        NL80211_SURVEY_INFO_CHANNEL_TIME,
        NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
        NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
        NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
        NL80211_SURVEY_INFO_CHANNEL_TIME_TX,

        /* keep last */
        __NL80211_SURVEY_INFO_AFTER_LAST,
        NL80211_SURVEY_INFO_MAX = __NL80211_SURVEY_INFO_AFTER_LAST - 1
};

/**
 * enum nl80211_mntr_flags - monitor configuration flags
 *
 * Monitor configuration flags.
 *
 * @__NL80211_MNTR_FLAG_INVALID: reserved
 *
 * @NL80211_MNTR_FLAG_FCSFAIL: pass frames with bad FCS
 * @NL80211_MNTR_FLAG_PLCPFAIL: pass frames with bad PLCP
 * @NL80211_MNTR_FLAG_CONTROL: pass control frames
 * @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering
 * @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing.
 *      overrides all other flags.
 *
 * @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
 * @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
 */
enum nl80211_mntr_flags {
        __NL80211_MNTR_FLAG_INVALID,
        NL80211_MNTR_FLAG_FCSFAIL,
        NL80211_MNTR_FLAG_PLCPFAIL,
        NL80211_MNTR_FLAG_CONTROL,
        NL80211_MNTR_FLAG_OTHER_BSS,
        NL80211_MNTR_FLAG_COOK_FRAMES,

        /* keep last */
        __NL80211_MNTR_FLAG_AFTER_LAST,
        NL80211_MNTR_FLAG_MAX = __NL80211_MNTR_FLAG_AFTER_LAST - 1
};

/**
 * enum nl80211_meshconf_params - mesh configuration parameters
 *
 * Mesh configuration parameters. These can be changed while the mesh is
 * active.
 *
 * @__NL80211_MESHCONF_INVALID: internal use
 *
 * @NL80211_MESHCONF_RETRY_TIMEOUT: specifies the initial retry timeout in
 * millisecond units, used by the Peer Link Open message
 *
 * @NL80211_MESHCONF_CONFIRM_TIMEOUT: specifies the initial confirm timeout, in
 * millisecond units, used by the peer link management to close a peer link
 *
 * @NL80211_MESHCONF_HOLDING_TIMEOUT: specifies the holding timeout, in
 * millisecond units
 *
 * @NL80211_MESHCONF_MAX_PEER_LINKS: maximum number of peer links allowed
 * on this mesh interface
 *
 * @NL80211_MESHCONF_MAX_RETRIES: specifies the maximum number of peer link
 * open retries that can be sent to establish a new peer link instance in a
 * mesh
 *
 * @NL80211_MESHCONF_TTL: specifies the value of TTL field set at a source mesh
 * point.
 *
 * @NL80211_MESHCONF_AUTO_OPEN_PLINKS: whether we should automatically
 * open peer links when we detect compatible mesh peers.
 *
 * @NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES: the number of action frames
 * containing a PREQ that an MP can send to a particular destination (path
 * target)
 *
 * @NL80211_MESHCONF_PATH_REFRESH_TIME: how frequently to refresh mesh paths
 * (in milliseconds)
 *
 * @NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT: minimum length of time to wait
 * until giving up on a path discovery (in milliseconds)
 *
 * @NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT: The time (in TUs) for which mesh
 * points receiving a PREQ shall consider the forwarding information from the
 * root to be valid. (TU = time unit)
 *
 * @NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL: The minimum interval of time (in
 * TUs) during which an MP can send only one action frame containing a PREQ
 * reference element
 *
 * @NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME: The interval of time (in TUs)
 * that it takes for an HWMP information element to propagate across the mesh
 *
 * @NL80211_MESHCONF_HWMP_ROOTMODE: whether root mode is enabled or not
 *
 * @NL80211_MESHCONF_ELEMENT_TTL: specifies the value of TTL field set at a
 * source mesh point for path selection elements.
 *
 * @NL80211_MESHCONF_ATTR_MAX: highest possible mesh configuration attribute
 *
 * @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
 */
enum nl80211_meshconf_params {
        __NL80211_MESHCONF_INVALID,
        NL80211_MESHCONF_RETRY_TIMEOUT,
        NL80211_MESHCONF_CONFIRM_TIMEOUT,
        NL80211_MESHCONF_HOLDING_TIMEOUT,
        NL80211_MESHCONF_MAX_PEER_LINKS,
        NL80211_MESHCONF_MAX_RETRIES,
        NL80211_MESHCONF_TTL,
        NL80211_MESHCONF_AUTO_OPEN_PLINKS,
        NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
        NL80211_MESHCONF_PATH_REFRESH_TIME,
        NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
        NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
        NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
        NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
        NL80211_MESHCONF_HWMP_ROOTMODE,
        NL80211_MESHCONF_ELEMENT_TTL,

        /* keep last */
        __NL80211_MESHCONF_ATTR_AFTER_LAST,
        NL80211_MESHCONF_ATTR_MAX = __NL80211_MESHCONF_ATTR_AFTER_LAST - 1
};

/**
 * enum nl80211_mesh_setup_params - mesh setup parameters
 *
 * Mesh setup parameters.  These are used to start/join a mesh and cannot be
 * changed while the mesh is active.
 *
 * @__NL80211_MESH_SETUP_INVALID: Internal use
 *
 * @NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL: Enable this option to use a
 * vendor specific path selection algorithm or disable it to use the default
 * HWMP.
 *
 * @NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC: Enable this option to use a
 * vendor specific path metric or disable it to use the default Airtime
 * metric.
 *
 * @NL80211_MESH_SETUP_IE: Information elements for this mesh, for instance, a
 * robust security network ie, or a vendor specific information element that
 * vendors will use to identify the path selection methods and metrics in use.
 *
 * @NL80211_MESH_SETUP_USERSPACE_AUTH: Enable this option if an authentication
 * daemon will be authenticating mesh candidates.
 *
 * @NL80211_MESH_SETUP_USERSPACE_AMPE: Enable this option if an authentication
 * daemon will be securing peer link frames.  AMPE is a secured version of Mesh
 * Peering Management (MPM) and is implemented with the assistance of a
 * userspace daemon.  When this flag is set, the kernel will send peer
 * management frames to a userspace daemon that will implement AMPE
 * functionality (security capabilities selection, key confirmation, and key
 * management).  When the flag is unset (default), the kernel can autonomously
 * complete (unsecured) mesh peering without the need of a userspace daemon.
 *
 * @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
 * @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
 */
enum nl80211_mesh_setup_params {
        __NL80211_MESH_SETUP_INVALID,
        NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL,
        NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC,
        NL80211_MESH_SETUP_IE,
        NL80211_MESH_SETUP_USERSPACE_AUTH,
        NL80211_MESH_SETUP_USERSPACE_AMPE,

        /* keep last */
        __NL80211_MESH_SETUP_ATTR_AFTER_LAST,
        NL80211_MESH_SETUP_ATTR_MAX = __NL80211_MESH_SETUP_ATTR_AFTER_LAST - 1
};

/**
 * enum nl80211_txq_attr - TX queue parameter attributes
 * @__NL80211_TXQ_ATTR_INVALID: Attribute number 0 is reserved
 * @NL80211_TXQ_ATTR_QUEUE: TX queue identifier (NL80211_TXQ_Q_*)
 * @NL80211_TXQ_ATTR_TXOP: Maximum burst time in units of 32 usecs, 0 meaning
 *      disabled
 * @NL80211_TXQ_ATTR_CWMIN: Minimum contention window [a value of the form
 *      2^n-1 in the range 1..32767]
 * @NL80211_TXQ_ATTR_CWMAX: Maximum contention window [a value of the form
 *      2^n-1 in the range 1..32767]
 * @NL80211_TXQ_ATTR_AIFS: Arbitration interframe space [0..255]
 * @__NL80211_TXQ_ATTR_AFTER_LAST: Internal
 * @NL80211_TXQ_ATTR_MAX: Maximum TXQ attribute number
 */
enum nl80211_txq_attr {
        __NL80211_TXQ_ATTR_INVALID,
        NL80211_TXQ_ATTR_QUEUE,
        NL80211_TXQ_ATTR_TXOP,
        NL80211_TXQ_ATTR_CWMIN,
        NL80211_TXQ_ATTR_CWMAX,
        NL80211_TXQ_ATTR_AIFS,

        /* keep last */
        __NL80211_TXQ_ATTR_AFTER_LAST,
        NL80211_TXQ_ATTR_MAX = __NL80211_TXQ_ATTR_AFTER_LAST - 1
};

enum nl80211_txq_q {
        NL80211_TXQ_Q_VO,
        NL80211_TXQ_Q_VI,
        NL80211_TXQ_Q_BE,
        NL80211_TXQ_Q_BK
};

enum nl80211_channel_type {
        NL80211_CHAN_NO_HT,
        NL80211_CHAN_HT20,
        NL80211_CHAN_HT40MINUS,
        NL80211_CHAN_HT40PLUS
};

/**
 * enum nl80211_bss - netlink attributes for a BSS
 *
 * @__NL80211_BSS_INVALID: invalid
 * @NL80211_BSS_BSSID: BSSID of the BSS (6 octets)
 * @NL80211_BSS_FREQUENCY: frequency in MHz (u32)
 * @NL80211_BSS_TSF: TSF of the received probe response/beacon (u64)
 * @NL80211_BSS_BEACON_INTERVAL: beacon interval of the (I)BSS (u16)
 * @NL80211_BSS_CAPABILITY: capability field (CPU order, u16)
 * @NL80211_BSS_INFORMATION_ELEMENTS: binary attribute containing the
 *      raw information elements from the probe response/beacon (bin);
 *      if the %NL80211_BSS_BEACON_IES attribute is present, the IEs here are
 *      from a Probe Response frame; otherwise they are from a Beacon frame.
 *      However, if the driver does not indicate the source of the IEs, these
 *      IEs may be from either frame subtype.
 * @NL80211_BSS_SIGNAL_MBM: signal strength of probe response/beacon
 *      in mBm (100 * dBm) (s32)
 * @NL80211_BSS_SIGNAL_UNSPEC: signal strength of the probe response/beacon
 *      in unspecified units, scaled to 0..100 (u8)
 * @NL80211_BSS_STATUS: status, if this BSS is "used"
 * @NL80211_BSS_SEEN_MS_AGO: age of this BSS entry in ms
 * @NL80211_BSS_BEACON_IES: binary attribute containing the raw information
 *      elements from a Beacon frame (bin); not present if no Beacon frame has
 *      yet been received
 * @__NL80211_BSS_AFTER_LAST: internal
 * @NL80211_BSS_MAX: highest BSS attribute
 */
enum nl80211_bss {
        __NL80211_BSS_INVALID,
        NL80211_BSS_BSSID,
        NL80211_BSS_FREQUENCY,
        NL80211_BSS_TSF,
        NL80211_BSS_BEACON_INTERVAL,
        NL80211_BSS_CAPABILITY,
        NL80211_BSS_INFORMATION_ELEMENTS,
        NL80211_BSS_SIGNAL_MBM,
        NL80211_BSS_SIGNAL_UNSPEC,
        NL80211_BSS_STATUS,
        NL80211_BSS_SEEN_MS_AGO,
        NL80211_BSS_BEACON_IES,

        /* keep last */
        __NL80211_BSS_AFTER_LAST,
        NL80211_BSS_MAX = __NL80211_BSS_AFTER_LAST - 1
};

/**
 * enum nl80211_bss_status - BSS "status"
 * @NL80211_BSS_STATUS_AUTHENTICATED: Authenticated with this BSS.
 * @NL80211_BSS_STATUS_ASSOCIATED: Associated with this BSS.
 * @NL80211_BSS_STATUS_IBSS_JOINED: Joined to this IBSS.
 *
 * The BSS status is a BSS attribute in scan dumps, which
 * indicates the status the interface has wrt. this BSS.
 */
enum nl80211_bss_status {
        NL80211_BSS_STATUS_AUTHENTICATED,
        NL80211_BSS_STATUS_ASSOCIATED,
        NL80211_BSS_STATUS_IBSS_JOINED,
};

/**
 * enum nl80211_auth_type - AuthenticationType
 *
 * @NL80211_AUTHTYPE_OPEN_SYSTEM: Open System authentication
 * @NL80211_AUTHTYPE_SHARED_KEY: Shared Key authentication (WEP only)
 * @NL80211_AUTHTYPE_FT: Fast BSS Transition (IEEE 802.11r)
 * @NL80211_AUTHTYPE_NETWORK_EAP: Network EAP (some Cisco APs and mainly LEAP)
 * @__NL80211_AUTHTYPE_NUM: internal
 * @NL80211_AUTHTYPE_MAX: maximum valid auth algorithm
 * @NL80211_AUTHTYPE_AUTOMATIC: determine automatically (if necessary by
 *      trying multiple times); this is invalid in netlink -- leave out
 *      the attribute for this on CONNECT commands.
 */
enum nl80211_auth_type {
        NL80211_AUTHTYPE_OPEN_SYSTEM,
        NL80211_AUTHTYPE_SHARED_KEY,
        NL80211_AUTHTYPE_FT,
        NL80211_AUTHTYPE_NETWORK_EAP,

        /* keep last */
        __NL80211_AUTHTYPE_NUM,
        NL80211_AUTHTYPE_MAX = __NL80211_AUTHTYPE_NUM - 1,
        NL80211_AUTHTYPE_AUTOMATIC
};

/**
 * enum nl80211_key_type - Key Type
 * @NL80211_KEYTYPE_GROUP: Group (broadcast/multicast) key
 * @NL80211_KEYTYPE_PAIRWISE: Pairwise (unicast/individual) key
 * @NL80211_KEYTYPE_PEERKEY: PeerKey (DLS)
 * @NUM_NL80211_KEYTYPES: number of defined key types
 */
enum nl80211_key_type {
        NL80211_KEYTYPE_GROUP,
        NL80211_KEYTYPE_PAIRWISE,
        NL80211_KEYTYPE_PEERKEY,

        NUM_NL80211_KEYTYPES
};

/**
 * enum nl80211_mfp - Management frame protection state
 * @NL80211_MFP_NO: Management frame protection not used
 * @NL80211_MFP_REQUIRED: Management frame protection required
 */
enum nl80211_mfp {
        NL80211_MFP_NO,
        NL80211_MFP_REQUIRED,
};

enum nl80211_wpa_versions {
        NL80211_WPA_VERSION_1 = 1 << 0,
        NL80211_WPA_VERSION_2 = 1 << 1,
};

/**
 * enum nl80211_key_default_types - key default types
 * @__NL80211_KEY_DEFAULT_TYPE_INVALID: invalid
 * @NL80211_KEY_DEFAULT_TYPE_UNICAST: key should be used as default
 *      unicast key
 * @NL80211_KEY_DEFAULT_TYPE_MULTICAST: key should be used as default
 *      multicast key
 * @NUM_NL80211_KEY_DEFAULT_TYPES: number of default types
 */
enum nl80211_key_default_types {
        __NL80211_KEY_DEFAULT_TYPE_INVALID,
        NL80211_KEY_DEFAULT_TYPE_UNICAST,
        NL80211_KEY_DEFAULT_TYPE_MULTICAST,

        NUM_NL80211_KEY_DEFAULT_TYPES
};

/**
 * enum nl80211_key_attributes - key attributes
 * @__NL80211_KEY_INVALID: invalid
 * @NL80211_KEY_DATA: (temporal) key data; for TKIP this consists of
 *      16 bytes encryption key followed by 8 bytes each for TX and RX MIC
 *      keys
 * @NL80211_KEY_IDX: key ID (u8, 0-3)
 * @NL80211_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11
 *      section 7.3.2.25.1, e.g. 0x000FAC04)
 * @NL80211_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
 *      CCMP keys, each six bytes in little endian
 * @NL80211_KEY_DEFAULT: flag indicating default key
 * @NL80211_KEY_DEFAULT_MGMT: flag indicating default management key
 * @NL80211_KEY_TYPE: the key type from enum nl80211_key_type, if not
 *      specified the default depends on whether a MAC address was
 *      given with the command using the key or not (u32)
 * @NL80211_KEY_DEFAULT_TYPES: A nested attribute containing flags
 *      attributes, specifying what a key should be set as default as.
 *      See &enum nl80211_key_default_types.
 * @__NL80211_KEY_AFTER_LAST: internal
 * @NL80211_KEY_MAX: highest key attribute
 */
enum nl80211_key_attributes {
        __NL80211_KEY_INVALID,
        NL80211_KEY_DATA,
        NL80211_KEY_IDX,
        NL80211_KEY_CIPHER,
        NL80211_KEY_SEQ,
        NL80211_KEY_DEFAULT,
        NL80211_KEY_DEFAULT_MGMT,
        NL80211_KEY_TYPE,
        NL80211_KEY_DEFAULT_TYPES,

        /* keep last */
        __NL80211_KEY_AFTER_LAST,
        NL80211_KEY_MAX = __NL80211_KEY_AFTER_LAST - 1
};

/**
 * enum nl80211_tx_rate_attributes - TX rate set attributes
 * @__NL80211_TXRATE_INVALID: invalid
 * @NL80211_TXRATE_LEGACY: Legacy (non-MCS) rates allowed for TX rate selection
 *      in an array of rates as defined in IEEE 802.11 7.3.2.2 (u8 values with
 *      1 = 500 kbps) but without the IE length restriction (at most
 *      %NL80211_MAX_SUPP_RATES in a single array).
 * @__NL80211_TXRATE_AFTER_LAST: internal
 * @NL80211_TXRATE_MAX: highest TX rate attribute
 */
enum nl80211_tx_rate_attributes {
        __NL80211_TXRATE_INVALID,
        NL80211_TXRATE_LEGACY,

        /* keep last */
        __NL80211_TXRATE_AFTER_LAST,
        NL80211_TXRATE_MAX = __NL80211_TXRATE_AFTER_LAST - 1
};

/**
 * enum nl80211_band - Frequency band
 * @NL80211_BAND_2GHZ: 2.4 GHz ISM band
 * @NL80211_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
 */
enum nl80211_band {
        NL80211_BAND_2GHZ,
        NL80211_BAND_5GHZ,
};

enum nl80211_ps_state {
        NL80211_PS_DISABLED,
        NL80211_PS_ENABLED,
};

/**
 * enum nl80211_attr_cqm - connection quality monitor attributes
 * @__NL80211_ATTR_CQM_INVALID: invalid
 * @NL80211_ATTR_CQM_RSSI_THOLD: RSSI threshold in dBm. This value specifies
 *      the threshold for the RSSI level at which an event will be sent. Zero
 *      to disable.
 * @NL80211_ATTR_CQM_RSSI_HYST: RSSI hysteresis in dBm. This value specifies
 *      the minimum amount the RSSI level must change after an event before a
 *      new event may be issued (to reduce effects of RSSI oscillation).
 * @NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT: RSSI threshold event
 * @NL80211_ATTR_CQM_PKT_LOSS_EVENT: a u32 value indicating that this many
 *      consecutive packets were not acknowledged by the peer
 * @__NL80211_ATTR_CQM_AFTER_LAST: internal
 * @NL80211_ATTR_CQM_MAX: highest key attribute
 */
enum nl80211_attr_cqm {
        __NL80211_ATTR_CQM_INVALID,
        NL80211_ATTR_CQM_RSSI_THOLD,
        NL80211_ATTR_CQM_RSSI_HYST,
        NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
        NL80211_ATTR_CQM_PKT_LOSS_EVENT,

        /* keep last */
        __NL80211_ATTR_CQM_AFTER_LAST,
        NL80211_ATTR_CQM_MAX = __NL80211_ATTR_CQM_AFTER_LAST - 1
};

/**
 * enum nl80211_cqm_rssi_threshold_event - RSSI threshold event
 * @NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW: The RSSI level is lower than the
 *      configured threshold
 * @NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH: The RSSI is higher than the
 *      configured threshold
 */
enum nl80211_cqm_rssi_threshold_event {
        NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
        NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
};


/**
 * enum nl80211_tx_power_setting - TX power adjustment
 * @NL80211_TX_POWER_AUTOMATIC: automatically determine transmit power
 * @NL80211_TX_POWER_LIMITED: limit TX power by the mBm parameter
 * @NL80211_TX_POWER_FIXED: fix TX power to the mBm parameter
 */
enum nl80211_tx_power_setting {
        NL80211_TX_POWER_AUTOMATIC,
        NL80211_TX_POWER_LIMITED,
        NL80211_TX_POWER_FIXED,
};

/**
 * enum nl80211_wowlan_packet_pattern_attr - WoWLAN packet pattern attribute
 * @__NL80211_WOWLAN_PKTPAT_INVALID: invalid number for nested attribute
 * @NL80211_WOWLAN_PKTPAT_PATTERN: the pattern, values where the mask has
 *      a zero bit are ignored
 * @NL80211_WOWLAN_PKTPAT_MASK: pattern mask, must be long enough to have
 *      a bit for each byte in the pattern. The lowest-order bit corresponds
 *      to the first byte of the pattern, but the bytes of the pattern are
 *      in a little-endian-like format, i.e. the 9th byte of the pattern
 *      corresponds to the lowest-order bit in the second byte of the mask.
 *      For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where
 *      xx indicates "don't care") would be represented by a pattern of
 *      twelve zero bytes, and a mask of "0xed,0x07".
 *      Note that the pattern matching is done as though frames were not
 *      802.11 frames but 802.3 frames, i.e. the frame is fully unpacked
 *      first (including SNAP header unpacking) and then matched.
 * @NUM_NL80211_WOWLAN_PKTPAT: number of attributes
 * @MAX_NL80211_WOWLAN_PKTPAT: max attribute number
 */
enum nl80211_wowlan_packet_pattern_attr {
        __NL80211_WOWLAN_PKTPAT_INVALID,
        NL80211_WOWLAN_PKTPAT_MASK,
        NL80211_WOWLAN_PKTPAT_PATTERN,

        NUM_NL80211_WOWLAN_PKTPAT,
        MAX_NL80211_WOWLAN_PKTPAT = NUM_NL80211_WOWLAN_PKTPAT - 1,
};

/**
 * struct nl80211_wowlan_pattern_support - pattern support information
 * @max_patterns: maximum number of patterns supported
 * @min_pattern_len: minimum length of each pattern
 * @max_pattern_len: maximum length of each pattern
 *
 * This struct is carried in %NL80211_WOWLAN_TRIG_PKT_PATTERN when
 * that is part of %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED in the
 * capability information given by the kernel to userspace.
 */
struct nl80211_wowlan_pattern_support {
        __u32 max_patterns;
        __u32 min_pattern_len;
        __u32 max_pattern_len;
} __attribute__((packed));

/**
 * enum nl80211_wowlan_triggers - WoWLAN trigger definitions
 * @__NL80211_WOWLAN_TRIG_INVALID: invalid number for nested attributes
 * @NL80211_WOWLAN_TRIG_ANY: wake up on any activity, do not really put
 *      the chip into a special state -- works best with chips that have
 *      support for low-power operation already (flag)
 * @NL80211_WOWLAN_TRIG_DISCONNECT: wake up on disconnect, the way disconnect
 *      is detected is implementation-specific (flag)
 * @NL80211_WOWLAN_TRIG_MAGIC_PKT: wake up on magic packet (6x 0xff, followed
 *      by 16 repetitions of MAC addr, anywhere in payload) (flag)
 * @NL80211_WOWLAN_TRIG_PKT_PATTERN: wake up on the specified packet patterns
 *      which are passed in an array of nested attributes, each nested attribute
 *      defining a with attributes from &struct nl80211_wowlan_trig_pkt_pattern.
 *      Each pattern defines a wakeup packet. The matching is done on the MSDU,
 *      i.e. as though the packet was an 802.3 packet, so the pattern matching
 *      is done after the packet is converted to the MSDU.
 *
 *      In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
 *      carrying a &struct nl80211_wowlan_pattern_support.
 * @NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED: Not a real trigger, and cannot be
 *      used when setting, used only to indicate that GTK rekeying is supported
 *      by the device (flag)
 * @NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE: wake up on GTK rekey failure (if
 *      done by the device) (flag)
 * @NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST: wake up on EAP Identity Request
 *      packet (flag)
 * @NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE: wake up on 4-way handshake (flag)
 * @NL80211_WOWLAN_TRIG_RFKILL_RELEASE: wake up when rfkill is released
 *      (on devices that have rfkill in the device) (flag)
 * @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
 * @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
 */
enum nl80211_wowlan_triggers {
        __NL80211_WOWLAN_TRIG_INVALID,
        NL80211_WOWLAN_TRIG_ANY,
        NL80211_WOWLAN_TRIG_DISCONNECT,
        NL80211_WOWLAN_TRIG_MAGIC_PKT,
        NL80211_WOWLAN_TRIG_PKT_PATTERN,
        NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED,
        NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE,
        NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST,
        NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE,
        NL80211_WOWLAN_TRIG_RFKILL_RELEASE,

        /* keep last */
        NUM_NL80211_WOWLAN_TRIG,
        MAX_NL80211_WOWLAN_TRIG = NUM_NL80211_WOWLAN_TRIG - 1
};

/**
 * enum nl80211_iface_limit_attrs - limit attributes
 * @NL80211_IFACE_LIMIT_UNSPEC: (reserved)
 * @NL80211_IFACE_LIMIT_MAX: maximum number of interfaces that
 *      can be chosen from this set of interface types (u32)
 * @NL80211_IFACE_LIMIT_TYPES: nested attribute containing a
 *      flag attribute for each interface type in this set
 * @NUM_NL80211_IFACE_LIMIT: number of attributes
 * @MAX_NL80211_IFACE_LIMIT: highest attribute number
 */
enum nl80211_iface_limit_attrs {
        NL80211_IFACE_LIMIT_UNSPEC,
        NL80211_IFACE_LIMIT_MAX,
        NL80211_IFACE_LIMIT_TYPES,

        /* keep last */
        NUM_NL80211_IFACE_LIMIT,
        MAX_NL80211_IFACE_LIMIT = NUM_NL80211_IFACE_LIMIT - 1
};

/**
 * enum nl80211_if_combination_attrs -- interface combination attributes
 *
 * @NL80211_IFACE_COMB_UNSPEC: (reserved)
 * @NL80211_IFACE_COMB_LIMITS: Nested attributes containing the limits
 *      for given interface types, see &enum nl80211_iface_limit_attrs.
 * @NL80211_IFACE_COMB_MAXNUM: u32 attribute giving the total number of
 *      interfaces that can be created in this group. This number doesn't
 *      apply to interfaces purely managed in software, which are listed
 *      in a separate attribute %NL80211_ATTR_INTERFACES_SOFTWARE.
 * @NL80211_IFACE_COMB_STA_AP_BI_MATCH: flag attribute specifying that
 *      beacon intervals within this group must be all the same even for
 *      infrastructure and AP/GO combinations, i.e. the GO(s) must adopt
 *      the infrastructure network's beacon interval.
 * @NL80211_IFACE_COMB_NUM_CHANNELS: u32 attribute specifying how many
 *      different channels may be used within this group.
 * @NUM_NL80211_IFACE_COMB: number of attributes
 * @MAX_NL80211_IFACE_COMB: highest attribute number
 *
 * Examples:
 *      limits = [ #{STA} <= 1, #{AP} <= 1 ], matching BI, channels = 1, max = 2
 *      => allows an AP and a STA that must match BIs
 *
 *      numbers = [ #{AP, P2P-GO} <= 8 ], channels = 1, max = 8
 *      => allows 8 of AP/GO
 *
 *      numbers = [ #{STA} <= 2 ], channels = 2, max = 2
 *      => allows two STAs on different channels
 *
 *      numbers = [ #{STA} <= 1, #{P2P-client,P2P-GO} <= 3 ], max = 4
 *      => allows a STA plus three P2P interfaces
 *
 * The list of these four possiblities could completely be contained
 * within the %NL80211_ATTR_INTERFACE_COMBINATIONS attribute to indicate
 * that any of these groups must match.
 *
 * "Combinations" of just a single interface will not be listed here,
 * a single interface of any valid interface type is assumed to always
 * be possible by itself. This means that implicitly, for each valid
 * interface type, the following group always exists:
 *      numbers = [ #{<type>} <= 1 ], channels = 1, max = 1
 */
enum nl80211_if_combination_attrs {
        NL80211_IFACE_COMB_UNSPEC,
        NL80211_IFACE_COMB_LIMITS,
        NL80211_IFACE_COMB_MAXNUM,
        NL80211_IFACE_COMB_STA_AP_BI_MATCH,
        NL80211_IFACE_COMB_NUM_CHANNELS,

        /* keep last */
        NUM_NL80211_IFACE_COMB,
        MAX_NL80211_IFACE_COMB = NUM_NL80211_IFACE_COMB - 1
};


/**
 * enum nl80211_plink_state - state of a mesh peer link finite state machine
 *
 * @NL80211_PLINK_LISTEN: initial state, considered the implicit
 *      state of non existant mesh peer links
 * @NL80211_PLINK_OPN_SNT: mesh plink open frame has been sent to
 *      this mesh peer
 * @NL80211_PLINK_OPN_RCVD: mesh plink open frame has been received
 *      from this mesh peer
 * @NL80211_PLINK_CNF_RCVD: mesh plink confirm frame has been
 *      received from this mesh peer
 * @NL80211_PLINK_ESTAB: mesh peer link is established
 * @NL80211_PLINK_HOLDING: mesh peer link is being closed or cancelled
 * @NL80211_PLINK_BLOCKED: all frames transmitted from this mesh
 *      plink are discarded
 * @NUM_NL80211_PLINK_STATES: number of peer link states
 * @MAX_NL80211_PLINK_STATES: highest numerical value of plink states
 */
enum nl80211_plink_state {
        NL80211_PLINK_LISTEN,
        NL80211_PLINK_OPN_SNT,
        NL80211_PLINK_OPN_RCVD,
        NL80211_PLINK_CNF_RCVD,
        NL80211_PLINK_ESTAB,
        NL80211_PLINK_HOLDING,
        NL80211_PLINK_BLOCKED,

        /* keep last */
        NUM_NL80211_PLINK_STATES,
        MAX_NL80211_PLINK_STATES = NUM_NL80211_PLINK_STATES - 1
};

#define NL80211_KCK_LEN                 16
#define NL80211_KEK_LEN                 16
#define NL80211_REPLAY_CTR_LEN          8

/**
 * enum nl80211_rekey_data - attributes for GTK rekey offload
 * @__NL80211_REKEY_DATA_INVALID: invalid number for nested attributes
 * @NL80211_REKEY_DATA_KEK: key encryption key (binary)
 * @NL80211_REKEY_DATA_KCK: key confirmation key (binary)
 * @NL80211_REKEY_DATA_REPLAY_CTR: replay counter (binary)
 * @NUM_NL80211_REKEY_DATA: number of rekey attributes (internal)
 * @MAX_NL80211_REKEY_DATA: highest rekey attribute (internal)
 */
enum nl80211_rekey_data {
        __NL80211_REKEY_DATA_INVALID,
        NL80211_REKEY_DATA_KEK,
        NL80211_REKEY_DATA_KCK,
        NL80211_REKEY_DATA_REPLAY_CTR,

        /* keep last */
        NUM_NL80211_REKEY_DATA,
        MAX_NL80211_REKEY_DATA = NUM_NL80211_REKEY_DATA - 1
};

#endif /* __LINUX_NL80211_H */