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+#ifndef __NET_CFG80211_H
+#define __NET_CFG80211_H
+/*
+ * 802.11 device and configuration interface
+ *
+ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/debugfs.h>
+#include <linux/list.h>
+#include <linux/bug.h>
+#include <linux/netlink.h>
+#include <linux/skbuff.h>
+#include <linux/nl80211.h>
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <net/regulatory.h>
+
+/**
+ * DOC: Introduction
+ *
+ * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
+ * userspace and drivers, and offers some utility functionality associated
+ * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
+ * by all modern wireless drivers in Linux, so that they offer a consistent
+ * API through nl80211. For backward compatibility, cfg80211 also offers
+ * wireless extensions to userspace, but hides them from drivers completely.
+ *
+ * Additionally, cfg80211 contains code to help enforce regulatory spectrum
+ * use restrictions.
+ */
+
+
+/**
+ * DOC: Device registration
+ *
+ * In order for a driver to use cfg80211, it must register the hardware device
+ * with cfg80211. This happens through a number of hardware capability structs
+ * described below.
+ *
+ * The fundamental structure for each device is the 'wiphy', of which each
+ * instance describes a physical wireless device connected to the system. Each
+ * such wiphy can have zero, one, or many virtual interfaces associated with
+ * it, which need to be identified as such by pointing the network interface's
+ * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
+ * the wireless part of the interface, normally this struct is embedded in the
+ * network interface's private data area. Drivers can optionally allow creating
+ * or destroying virtual interfaces on the fly, but without at least one or the
+ * ability to create some the wireless device isn't useful.
+ *
+ * Each wiphy structure contains device capability information, and also has
+ * a pointer to the various operations the driver offers. The definitions and
+ * structures here describe these capabilities in detail.
+ */
+
+/*
+ * wireless hardware capability structures
+ */
+
+/**
+ * enum ieee80211_band - supported frequency bands
+ *
+ * The bands are assigned this way because the supported
+ * bitrates differ in these bands.
+ *
+ * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
+ * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
+ * @IEEE80211_NUM_BANDS: number of defined bands
+ */
+enum ieee80211_band {
+ IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
+ IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
+
+ /* keep last */
+ IEEE80211_NUM_BANDS
+};
+
+/**
+ * enum ieee80211_channel_flags - channel flags
+ *
+ * Channel flags set by the regulatory control code.
+ *
+ * @IEEE80211_CHAN_DISABLED: This channel is disabled.
+ * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
+ * on this channel.
+ * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
+ * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
+ * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
+ * is not permitted.
+ * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
+ * is not permitted.
+ */
+enum ieee80211_channel_flags {
+ IEEE80211_CHAN_DISABLED = 1<<0,
+ IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
+ IEEE80211_CHAN_NO_IBSS = 1<<2,
+ IEEE80211_CHAN_RADAR = 1<<3,
+ IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
+ IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
+};
+
+#define IEEE80211_CHAN_NO_HT40 \
+ (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
+
+/**
+ * struct ieee80211_channel - channel definition
+ *
+ * This structure describes a single channel for use
+ * with cfg80211.
+ *
+ * @center_freq: center frequency in MHz
+ * @hw_value: hardware-specific value for the channel
+ * @flags: channel flags from &enum ieee80211_channel_flags.
+ * @orig_flags: channel flags at registration time, used by regulatory
+ * code to support devices with additional restrictions
+ * @band: band this channel belongs to.
+ * @max_antenna_gain: maximum antenna gain in dBi
+ * @max_power: maximum transmission power (in dBm)
+ * @max_reg_power: maximum regulatory transmission power (in dBm)
+ * @beacon_found: helper to regulatory code to indicate when a beacon
+ * has been found on this channel. Use regulatory_hint_found_beacon()
+ * to enable this, this is useful only on 5 GHz band.
+ * @orig_mag: internal use
+ * @orig_mpwr: internal use
+ */
+struct ieee80211_channel {
+ enum ieee80211_band band;
+ u16 center_freq;
+ u16 hw_value;
+ u32 flags;
+ int max_antenna_gain;
+ int max_power;
+ int max_reg_power;
+ bool beacon_found;
+ u32 orig_flags;
+ int orig_mag, orig_mpwr;
+};
+
+/**
+ * enum ieee80211_rate_flags - rate flags
+ *
+ * Hardware/specification flags for rates. These are structured
+ * in a way that allows using the same bitrate structure for
+ * different bands/PHY modes.
+ *
+ * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
+ * preamble on this bitrate; only relevant in 2.4GHz band and
+ * with CCK rates.
+ * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
+ * when used with 802.11a (on the 5 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
+ * when used with 802.11b (on the 2.4 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
+ * when used with 802.11g (on the 2.4 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
+ */
+enum ieee80211_rate_flags {
+ IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
+ IEEE80211_RATE_MANDATORY_A = 1<<1,
+ IEEE80211_RATE_MANDATORY_B = 1<<2,
+ IEEE80211_RATE_MANDATORY_G = 1<<3,
+ IEEE80211_RATE_ERP_G = 1<<4,
+};
+
+/**
+ * struct ieee80211_rate - bitrate definition
+ *
+ * This structure describes a bitrate that an 802.11 PHY can
+ * operate with. The two values @hw_value and @hw_value_short
+ * are only for driver use when pointers to this structure are
+ * passed around.
+ *
+ * @flags: rate-specific flags
+ * @bitrate: bitrate in units of 100 Kbps
+ * @hw_value: driver/hardware value for this rate
+ * @hw_value_short: driver/hardware value for this rate when
+ * short preamble is used
+ */
+struct ieee80211_rate {
+ u32 flags;
+ u16 bitrate;
+ u16 hw_value, hw_value_short;
+};
+
+/**
+ * struct ieee80211_sta_ht_cap - STA's HT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11n HT capabilities for an STA.
+ *
+ * @ht_supported: is HT supported by the STA
+ * @cap: HT capabilities map as described in 802.11n spec
+ * @ampdu_factor: Maximum A-MPDU length factor
+ * @ampdu_density: Minimum A-MPDU spacing
+ * @mcs: Supported MCS rates
+ */
+struct ieee80211_sta_ht_cap {
+ u16 cap; /* use IEEE80211_HT_CAP_ */
+ bool ht_supported;
+ u8 ampdu_factor;
+ u8 ampdu_density;
+ struct ieee80211_mcs_info mcs;
+};
+
+/**
+ * struct ieee80211_supported_band - frequency band definition
+ *
+ * This structure describes a frequency band a wiphy
+ * is able to operate in.
+ *
+ * @channels: Array of channels the hardware can operate in
+ * in this band.
+ * @band: the band this structure represents
+ * @n_channels: Number of channels in @channels
+ * @bitrates: Array of bitrates the hardware can operate with
+ * in this band. Must be sorted to give a valid "supported
+ * rates" IE, i.e. CCK rates first, then OFDM.
+ * @n_bitrates: Number of bitrates in @bitrates
+ * @ht_cap: HT capabilities in this band
+ */
+struct ieee80211_supported_band {
+ struct ieee80211_channel *channels;
+ struct ieee80211_rate *bitrates;
+ enum ieee80211_band band;
+ int n_channels;
+ int n_bitrates;
+ struct ieee80211_sta_ht_cap ht_cap;
+};
+
+/*
+ * Wireless hardware/device configuration structures and methods
+ */
+
+/**
+ * DOC: Actions and configuration
+ *
+ * Each wireless device and each virtual interface offer a set of configuration
+ * operations and other actions that are invoked by userspace. Each of these
+ * actions is described in the operations structure, and the parameters these
+ * operations use are described separately.
+ *
+ * Additionally, some operations are asynchronous and expect to get status
+ * information via some functions that drivers need to call.
+ *
+ * Scanning and BSS list handling with its associated functionality is described
+ * in a separate chapter.
+ */
+
+/**
+ * struct vif_params - describes virtual interface parameters
+ * @use_4addr: use 4-address frames
+ */
+struct vif_params {
+ int use_4addr;
+};
+
+/**
+ * struct key_params - key information
+ *
+ * Information about a key
+ *
+ * @key: key material
+ * @key_len: length of key material
+ * @cipher: cipher suite selector
+ * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
+ * with the get_key() callback, must be in little endian,
+ * length given by @seq_len.
+ * @seq_len: length of @seq.
+ */
+struct key_params {
+ u8 *key;
+ u8 *seq;
+ int key_len;
+ int seq_len;
+ u32 cipher;
+};
+
+/**
+ * enum survey_info_flags - survey information flags
+ *
+ * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
+ * @SURVEY_INFO_IN_USE: channel is currently being used
+ * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
+ * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
+ *
+ * Used by the driver to indicate which info in &struct survey_info
+ * it has filled in during the get_survey().
+ */
+enum survey_info_flags {
+ SURVEY_INFO_NOISE_DBM = 1<<0,
+ SURVEY_INFO_IN_USE = 1<<1,
+ SURVEY_INFO_CHANNEL_TIME = 1<<2,
+ SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
+ SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
+ SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
+ SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
+};
+
+/**
+ * struct survey_info - channel survey response
+ *
+ * @channel: the channel this survey record reports, mandatory
+ * @filled: bitflag of flags from &enum survey_info_flags
+ * @noise: channel noise in dBm. This and all following fields are
+ * optional
+ * @channel_time: amount of time in ms the radio spent on the channel
+ * @channel_time_busy: amount of time the primary channel was sensed busy
+ * @channel_time_ext_busy: amount of time the extension channel was sensed busy
+ * @channel_time_rx: amount of time the radio spent receiving data
+ * @channel_time_tx: amount of time the radio spent transmitting data
+ *
+ * Used by dump_survey() to report back per-channel survey information.
+ *
+ * This structure can later be expanded with things like
+ * channel duty cycle etc.
+ */
+struct survey_info {
+ struct ieee80211_channel *channel;
+ u64 channel_time;
+ u64 channel_time_busy;
+ u64 channel_time_ext_busy;
+ u64 channel_time_rx;
+ u64 channel_time_tx;
+ u32 filled;
+ s8 noise;
+};
+
+/**
+ * struct cfg80211_crypto_settings - Crypto settings
+ * @wpa_versions: indicates which, if any, WPA versions are enabled
+ * (from enum nl80211_wpa_versions)
+ * @cipher_group: group key cipher suite (or 0 if unset)
+ * @n_ciphers_pairwise: number of AP supported unicast ciphers
+ * @ciphers_pairwise: unicast key cipher suites
+ * @n_akm_suites: number of AKM suites
+ * @akm_suites: AKM suites
+ * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
+ * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
+ * required to assume that the port is unauthorized until authorized by
+ * user space. Otherwise, port is marked authorized by default.
+ * @control_port_ethertype: the control port protocol that should be
+ * allowed through even on unauthorized ports
+ * @control_port_no_encrypt: TRUE to prevent encryption of control port
+ * protocol frames.
+ */
+struct cfg80211_crypto_settings {
+ u32 wpa_versions;
+ u32 cipher_group;
+ int n_ciphers_pairwise;
+ u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
+ int n_akm_suites;
+ u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
+ bool control_port;
+ __be16 control_port_ethertype;
+ bool control_port_no_encrypt;
+};
+
+/**
+ * struct cfg80211_beacon_data - beacon data
+ * @head: head portion of beacon (before TIM IE)
+ * or %NULL if not changed
+ * @tail: tail portion of beacon (after TIM IE)
+ * or %NULL if not changed
+ * @head_len: length of @head
+ * @tail_len: length of @tail
+ * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
+ * @beacon_ies_len: length of beacon_ies in octets
+ * @proberesp_ies: extra information element(s) to add into Probe Response
+ * frames or %NULL
+ * @proberesp_ies_len: length of proberesp_ies in octets
+ * @assocresp_ies: extra information element(s) to add into (Re)Association
+ * Response frames or %NULL
+ * @assocresp_ies_len: length of assocresp_ies in octets
+ * @probe_resp_len: length of probe response template (@probe_resp)
+ * @probe_resp: probe response template (AP mode only)
+ */
+struct cfg80211_beacon_data {
+ const u8 *head, *tail;
+ const u8 *beacon_ies;
+ const u8 *proberesp_ies;
+ const u8 *assocresp_ies;
+ const u8 *probe_resp;
+
+ size_t head_len, tail_len;
+ size_t beacon_ies_len;
+ size_t proberesp_ies_len;
+ size_t assocresp_ies_len;
+ size_t probe_resp_len;
+};
+
+/**
+ * struct cfg80211_ap_settings - AP configuration
+ *
+ * Used to configure an AP interface.
+ *
+ * @beacon: beacon data
+ * @beacon_interval: beacon interval
+ * @dtim_period: DTIM period
+ * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
+ * user space)
+ * @ssid_len: length of @ssid
+ * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
+ * @crypto: crypto settings
+ * @privacy: the BSS uses privacy
+ * @auth_type: Authentication type (algorithm)
+ * @inactivity_timeout: time in seconds to determine station's inactivity.
+ */
+struct cfg80211_ap_settings {
+ struct cfg80211_beacon_data beacon;
+
+ int beacon_interval, dtim_period;
+ const u8 *ssid;
+ size_t ssid_len;
+ enum nl80211_hidden_ssid hidden_ssid;
+ struct cfg80211_crypto_settings crypto;
+ bool privacy;
+ enum nl80211_auth_type auth_type;
+ int inactivity_timeout;
+};
+
+/**
+ * enum plink_action - actions to perform in mesh peers
+ *
+ * @PLINK_ACTION_INVALID: action 0 is reserved
+ * @PLINK_ACTION_OPEN: start mesh peer link establishment
+ * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
+ */
+enum plink_actions {
+ PLINK_ACTION_INVALID,
+ PLINK_ACTION_OPEN,
+ PLINK_ACTION_BLOCK,
+};
+
+/**
+ * enum station_parameters_apply_mask - station parameter values to apply
+ * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
+ *
+ * Not all station parameters have in-band "no change" signalling,
+ * for those that don't these flags will are used.
+ */
+enum station_parameters_apply_mask {
+ STATION_PARAM_APPLY_UAPSD = BIT(0),
+};
+
+/**
+ * struct station_parameters - station parameters
+ *
+ * Used to change and create a new station.
+ *
+ * @vlan: vlan interface station should belong to
+ * @supported_rates: supported rates in IEEE 802.11 format
+ * (or NULL for no change)
+ * @supported_rates_len: number of supported rates
+ * @sta_flags_mask: station flags that changed
+ * (bitmask of BIT(NL80211_STA_FLAG_...))
+ * @sta_flags_set: station flags values
+ * (bitmask of BIT(NL80211_STA_FLAG_...))
+ * @listen_interval: listen interval or -1 for no change
+ * @aid: AID or zero for no change
+ * @plink_action: plink action to take
+ * @plink_state: set the peer link state for a station
+ * @ht_capa: HT capabilities of station
+ * @uapsd_queues: bitmap of queues configured for uapsd. same format
+ * as the AC bitmap in the QoS info field
+ * @max_sp: max Service Period. same format as the MAX_SP in the
+ * QoS info field (but already shifted down)
+ * @sta_modify_mask: bitmap indicating which parameters changed
+ * (for those that don't have a natural "no change" value),
+ * see &enum station_parameters_apply_mask
+ */
+struct station_parameters {
+ u8 *supported_rates;
+ struct net_device *vlan;
+ u32 sta_flags_mask, sta_flags_set;
+ u32 sta_modify_mask;
+ int listen_interval;
+ u16 aid;
+ u8 supported_rates_len;
+ u8 plink_action;
+ u8 plink_state;
+ struct ieee80211_ht_cap *ht_capa;
+ u8 uapsd_queues;
+ u8 max_sp;
+};
+
+/**
+ * enum station_info_flags - station information flags
+ *
+ * Used by the driver to indicate which info in &struct station_info
+ * it has filled in during get_station() or dump_station().
+ *
+ * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
+ * @STATION_INFO_RX_BYTES: @rx_bytes filled
+ * @STATION_INFO_TX_BYTES: @tx_bytes filled
+ * @STATION_INFO_LLID: @llid filled
+ * @STATION_INFO_PLID: @plid filled
+ * @STATION_INFO_PLINK_STATE: @plink_state filled
+ * @STATION_INFO_SIGNAL: @signal filled
+ * @STATION_INFO_TX_BITRATE: @txrate fields are filled
+ * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
+ * @STATION_INFO_RX_PACKETS: @rx_packets filled
+ * @STATION_INFO_TX_PACKETS: @tx_packets filled
+ * @STATION_INFO_TX_RETRIES: @tx_retries filled
+ * @STATION_INFO_TX_FAILED: @tx_failed filled
+ * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
+ * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
+ * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
+ * @STATION_INFO_BSS_PARAM: @bss_param filled
+ * @STATION_INFO_CONNECTED_TIME: @connected_time filled
+ * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
+ * @STATION_INFO_STA_FLAGS: @sta_flags filled
+ * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
+ */
+enum station_info_flags {
+ STATION_INFO_INACTIVE_TIME = 1<<0,
+ STATION_INFO_RX_BYTES = 1<<1,
+ STATION_INFO_TX_BYTES = 1<<2,
+ STATION_INFO_LLID = 1<<3,
+ STATION_INFO_PLID = 1<<4,
+ STATION_INFO_PLINK_STATE = 1<<5,
+ STATION_INFO_SIGNAL = 1<<6,
+ STATION_INFO_TX_BITRATE = 1<<7,
+ STATION_INFO_RX_PACKETS = 1<<8,
+ STATION_INFO_TX_PACKETS = 1<<9,
+ STATION_INFO_TX_RETRIES = 1<<10,
+ STATION_INFO_TX_FAILED = 1<<11,
+ STATION_INFO_RX_DROP_MISC = 1<<12,
+ STATION_INFO_SIGNAL_AVG = 1<<13,
+ STATION_INFO_RX_BITRATE = 1<<14,
+ STATION_INFO_BSS_PARAM = 1<<15,
+ STATION_INFO_CONNECTED_TIME = 1<<16,
+ STATION_INFO_ASSOC_REQ_IES = 1<<17,
+ STATION_INFO_STA_FLAGS = 1<<18,
+ STATION_INFO_BEACON_LOSS_COUNT = 1<<19
+};
+
+/**
+ * enum station_info_rate_flags - bitrate info flags
+ *
+ * Used by the driver to indicate the specific rate transmission
+ * type for 802.11n transmissions.
+ *
+ * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
+ * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
+ * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
+ */
+enum rate_info_flags {
+ RATE_INFO_FLAGS_MCS = 1<<0,
+ RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
+ RATE_INFO_FLAGS_SHORT_GI = 1<<2,
+};
+
+/**
+ * struct rate_info - bitrate information
+ *
+ * Information about a receiving or transmitting bitrate
+ *
+ * @flags: bitflag of flags from &enum rate_info_flags
+ * @mcs: mcs index if struct describes a 802.11n bitrate
+ * @legacy: bitrate in 100kbit/s for 802.11abg
+ */
+struct rate_info {
+ u8 flags;
+ u8 mcs;
+ u16 legacy;
+};
+
+/**
+ * enum station_info_rate_flags - bitrate info flags
+ *
+ * Used by the driver to indicate the specific rate transmission
+ * type for 802.11n transmissions.
+ *
+ * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
+ * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
+ * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
+ */
+enum bss_param_flags {
+ BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
+ BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
+ BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
+};
+
+/**
+ * struct sta_bss_parameters - BSS parameters for the attached station
+ *
+ * Information about the currently associated BSS
+ *
+ * @flags: bitflag of flags from &enum bss_param_flags
+ * @dtim_period: DTIM period for the BSS
+ * @beacon_interval: beacon interval
+ */
+struct sta_bss_parameters {
+ u8 flags;
+ u8 dtim_period;
+ u16 beacon_interval;
+};
+
+/**
+ * struct station_info - station information
+ *
+ * Station information filled by driver for get_station() and dump_station.
+ *
+ * @filled: bitflag of flags from &enum station_info_flags
+ * @connected_time: time(in secs) since a station is last connected
+ * @inactive_time: time since last station activity (tx/rx) in milliseconds
+ * @rx_bytes: bytes received from this station
+ * @tx_bytes: bytes transmitted to this station
+ * @llid: mesh local link id
+ * @plid: mesh peer link id
+ * @plink_state: mesh peer link state
+ * @signal: the signal strength, type depends on the wiphy's signal_type
+ NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @signal_avg: avg signal strength, type depends on the wiphy's signal_type
+ NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @txrate: current unicast bitrate from this station
+ * @rxrate: current unicast bitrate to this station
+ * @rx_packets: packets received from this station
+ * @tx_packets: packets transmitted to this station
+ * @tx_retries: cumulative retry counts
+ * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
+ * @rx_dropped_misc: Dropped for un-specified reason.
+ * @bss_param: current BSS parameters
+ * @generation: generation number for nl80211 dumps.
+ * This number should increase every time the list of stations
+ * changes, i.e. when a station is added or removed, so that
+ * userspace can tell whether it got a consistent snapshot.
+ * @assoc_req_ies: IEs from (Re)Association Request.
+ * This is used only when in AP mode with drivers that do not use
+ * user space MLME/SME implementation. The information is provided for
+ * the cfg80211_new_sta() calls to notify user space of the IEs.
+ * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
+ * @sta_flags: station flags mask & values
+ * @beacon_loss_count: Number of times beacon loss event has triggered.
+ */
+struct station_info {
+ u32 filled;
+ u32 connected_time;
+ u32 inactive_time;
+ u32 rx_bytes;
+ u32 tx_bytes;
+ u16 llid;
+ u16 plid;
+ u8 plink_state;
+ s8 signal;
+ s8 signal_avg;
+ struct rate_info txrate;
+ struct rate_info rxrate;
+ u32 rx_packets;
+ u32 tx_packets;
+ u32 tx_retries;
+ u32 tx_failed;
+ u32 rx_dropped_misc;
+ struct sta_bss_parameters bss_param;
+ struct nl80211_sta_flag_update sta_flags;
+
+ int generation;
+
+ const u8 *assoc_req_ies;
+ size_t assoc_req_ies_len;
+
+ u32 beacon_loss_count;
+
+ /*
+ * Note: Add a new enum station_info_flags value for each new field and
+ * use it to check which fields are initialized.
+ */
+};
+
+/**
+ * enum monitor_flags - monitor flags
+ *
+ * Monitor interface configuration flags. Note that these must be the bits
+ * according to the nl80211 flags.
+ *
+ * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
+ * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
+ * @MONITOR_FLAG_CONTROL: pass control frames
+ * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
+ * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
+ */
+enum monitor_flags {
+ MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
+ MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
+ MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
+ MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
+ MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
+};
+
+/**
+ * enum mpath_info_flags - mesh path information flags
+ *
+ * Used by the driver to indicate which info in &struct mpath_info it has filled
+ * in during get_station() or dump_station().
+ *
+ * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
+ * @MPATH_INFO_SN: @sn filled
+ * @MPATH_INFO_METRIC: @metric filled
+ * @MPATH_INFO_EXPTIME: @exptime filled
+ * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
+ * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
+ * @MPATH_INFO_FLAGS: @flags filled
+ */
+enum mpath_info_flags {
+ MPATH_INFO_FRAME_QLEN = BIT(0),
+ MPATH_INFO_SN = BIT(1),
+ MPATH_INFO_METRIC = BIT(2),
+ MPATH_INFO_EXPTIME = BIT(3),
+ MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
+ MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
+ MPATH_INFO_FLAGS = BIT(6),
+};
+
+/**
+ * struct mpath_info - mesh path information
+ *
+ * Mesh path information filled by driver for get_mpath() and dump_mpath().
+ *
+ * @filled: bitfield of flags from &enum mpath_info_flags
+ * @frame_qlen: number of queued frames for this destination
+ * @sn: target sequence number
+ * @metric: metric (cost) of this mesh path
+ * @exptime: expiration time for the mesh path from now, in msecs
+ * @flags: mesh path flags
+ * @discovery_timeout: total mesh path discovery timeout, in msecs
+ * @discovery_retries: mesh path discovery retries
+ * @generation: generation number for nl80211 dumps.
+ * This number should increase every time the list of mesh paths
+ * changes, i.e. when a station is added or removed, so that
+ * userspace can tell whether it got a consistent snapshot.
+ */
+struct mpath_info {
+ u32 filled;
+ u32 frame_qlen;
+ u32 sn;
+ u32 metric;
+ u32 exptime;
+ u32 discovery_timeout;
+ u8 discovery_retries;
+ u8 flags;
+
+ int generation;
+};
+
+/**
+ * struct bss_parameters - BSS parameters
+ *
+ * Used to change BSS parameters (mainly for AP mode).
+ *
+ * @use_cts_prot: Whether to use CTS protection
+ * (0 = no, 1 = yes, -1 = do not change)
+ * @use_short_preamble: Whether the use of short preambles is allowed
+ * (0 = no, 1 = yes, -1 = do not change)
+ * @use_short_slot_time: Whether the use of short slot time is allowed
+ * (0 = no, 1 = yes, -1 = do not change)
+ * @basic_rates: basic rates in IEEE 802.11 format
+ * (or NULL for no change)
+ * @basic_rates_len: number of basic rates
+ * @ap_isolate: do not forward packets between connected stations
+ * @ht_opmode: HT Operation mode
+ * (u16 = opmode, -1 = do not change)
+ */
+struct bss_parameters {
+ int use_cts_prot;
+ int use_short_preamble;
+ int use_short_slot_time;
+ u8 *basic_rates;
+ u8 basic_rates_len;
+ int ap_isolate;
+ int ht_opmode;
+};
+
+/*
+ * struct mesh_config - 802.11s mesh configuration
+ *
+ * These parameters can be changed while the mesh is active.
+ */
+struct mesh_config {
+ /* Timeouts in ms */
+ /* Mesh plink management parameters */
+ u16 dot11MeshRetryTimeout;
+ u16 dot11MeshConfirmTimeout;
+ u16 dot11MeshHoldingTimeout;
+ u16 dot11MeshMaxPeerLinks;
+ u8 dot11MeshMaxRetries;
+ u8 dot11MeshTTL;
+ /* ttl used in path selection information elements */
+ u8 element_ttl;
+ bool auto_open_plinks;
+ /* HWMP parameters */
+ u8 dot11MeshHWMPmaxPREQretries;
+ u32 path_refresh_time;
+ u16 min_discovery_timeout;
+ u32 dot11MeshHWMPactivePathTimeout;
+ u16 dot11MeshHWMPpreqMinInterval;
+ u16 dot11MeshHWMPperrMinInterval;
+ u16 dot11MeshHWMPnetDiameterTraversalTime;
+ u8 dot11MeshHWMPRootMode;
+ u16 dot11MeshHWMPRannInterval;
+ /* This is missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol
+ * set to true only means that the station will announce others it's a
+ * mesh gate, but not necessarily using the gate announcement protocol.
+ * Still keeping the same nomenclature to be in sync with the spec. */
+ bool dot11MeshGateAnnouncementProtocol;
+ bool dot11MeshForwarding;
+ s32 rssi_threshold;
+};
+
+/**
+ * struct mesh_setup - 802.11s mesh setup configuration
+ * @mesh_id: the mesh ID
+ * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
+ * @path_sel_proto: which path selection protocol to use
+ * @path_metric: which metric to use
+ * @ie: vendor information elements (optional)
+ * @ie_len: length of vendor information elements
+ * @is_authenticated: this mesh requires authentication
+ * @is_secure: this mesh uses security
+ * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
+ *
+ * These parameters are fixed when the mesh is created.
+ */
+struct mesh_setup {
+ const u8 *mesh_id;
+ u8 mesh_id_len;
+ u8 path_sel_proto;
+ u8 path_metric;
+ const u8 *ie;
+ u8 ie_len;
+ bool is_authenticated;
+ bool is_secure;
+ int mcast_rate[IEEE80211_NUM_BANDS];
+};
+
+/**
+ * struct ieee80211_txq_params - TX queue parameters
+ * @queue: TX queue identifier (NL80211_TXQ_Q_*)
+ * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
+ * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
+ * 1..32767]
+ * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
+ * 1..32767]
+ * @aifs: Arbitration interframe space [0..255]
+ */
+struct ieee80211_txq_params {
+ enum nl80211_txq_q queue;
+ u16 txop;
+ u16 cwmin;
+ u16 cwmax;
+ u8 aifs;
+};
+
+/* from net/wireless.h */
+struct wiphy;
+
+/**
+ * DOC: Scanning and BSS list handling
+ *
+ * The scanning process itself is fairly simple, but cfg80211 offers quite
+ * a bit of helper functionality. To start a scan, the scan operation will
+ * be invoked with a scan definition. This scan definition contains the
+ * channels to scan, and the SSIDs to send probe requests for (including the
+ * wildcard, if desired). A passive scan is indicated by having no SSIDs to
+ * probe. Additionally, a scan request may contain extra information elements
+ * that should be added to the probe request. The IEs are guaranteed to be
+ * well-formed, and will not exceed the maximum length the driver advertised
+ * in the wiphy structure.
+ *
+ * When scanning finds a BSS, cfg80211 needs to be notified of that, because
+ * it is responsible for maintaining the BSS list; the driver should not
+ * maintain a list itself. For this notification, various functions exist.
+ *
+ * Since drivers do not maintain a BSS list, there are also a number of
+ * functions to search for a BSS and obtain information about it from the
+ * BSS structure cfg80211 maintains. The BSS list is also made available
+ * to userspace.
+ */
+
+/**
+ * struct cfg80211_ssid - SSID description
+ * @ssid: the SSID
+ * @ssid_len: length of the ssid
+ */
+struct cfg80211_ssid {
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len;
+};
+
+/**
+ * struct cfg80211_scan_request - scan request description
+ *
+ * @ssids: SSIDs to scan for (active scan only)
+ * @n_ssids: number of SSIDs
+ * @channels: channels to scan on.
+ * @n_channels: total number of channels to scan
+ * @ie: optional information element(s) to add into Probe Request or %NULL
+ * @ie_len: length of ie in octets
+ * @rates: bitmap of rates to advertise for each band
+ * @wiphy: the wiphy this was for
+ * @dev: the interface
+ * @aborted: (internal) scan request was notified as aborted
+ * @no_cck: used to send probe requests at non CCK rate in 2GHz band
+ */
+struct cfg80211_scan_request {
+ struct cfg80211_ssid *ssids;
+ int n_ssids;
+ u32 n_channels;
+ const u8 *ie;
+ size_t ie_len;
+
+ u32 rates[IEEE80211_NUM_BANDS];
+
+ /* internal */
+ struct wiphy *wiphy;
+ struct net_device *dev;
+ bool aborted;
+ bool no_cck;
+
+ /* keep last */
+ struct ieee80211_channel *channels[0];
+};
+
+/**
+ * struct cfg80211_match_set - sets of attributes to match
+ *
+ * @ssid: SSID to be matched
+ */
+struct cfg80211_match_set {
+ struct cfg80211_ssid ssid;
+};
+
+/**
+ * struct cfg80211_sched_scan_request - scheduled scan request description
+ *
+ * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
+ * @n_ssids: number of SSIDs
+ * @n_channels: total number of channels to scan
+ * @interval: interval between each scheduled scan cycle
+ * @ie: optional information element(s) to add into Probe Request or %NULL
+ * @ie_len: length of ie in octets
+ * @match_sets: sets of parameters to be matched for a scan result
+ * entry to be considered valid and to be passed to the host
+ * (others are filtered out).
+ * If ommited, all results are passed.
+ * @n_match_sets: number of match sets
+ * @wiphy: the wiphy this was for
+ * @dev: the interface
+ * @channels: channels to scan
+ */
+struct cfg80211_sched_scan_request {
+ struct cfg80211_ssid *ssids;
+ int n_ssids;
+ u32 n_channels;
+ u32 interval;
+ const u8 *ie;
+ size_t ie_len;
+ struct cfg80211_match_set *match_sets;
+ int n_match_sets;
+
+ /* internal */
+ struct wiphy *wiphy;
+ struct net_device *dev;
+
+ /* keep last */
+ struct ieee80211_channel *channels[0];
+};
+
+/**
+ * enum cfg80211_signal_type - signal type
+ *
+ * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
+ * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
+ * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
+ */
+enum cfg80211_signal_type {
+ CFG80211_SIGNAL_TYPE_NONE,
+ CFG80211_SIGNAL_TYPE_MBM,
+ CFG80211_SIGNAL_TYPE_UNSPEC,
+};
+
+/**
+ * struct cfg80211_bss - BSS description
+ *
+ * This structure describes a BSS (which may also be a mesh network)
+ * for use in scan results and similar.
+ *
+ * @channel: channel this BSS is on
+ * @bssid: BSSID of the BSS
+ * @tsf: timestamp of last received update
+ * @beacon_interval: the beacon interval as from the frame
+ * @capability: the capability field in host byte order
+ * @information_elements: the information elements (Note that there
+ * is no guarantee that these are well-formed!); this is a pointer to
+ * either the beacon_ies or proberesp_ies depending on whether Probe
+ * Response frame has been received
+ * @len_information_elements: total length of the information elements
+ * @beacon_ies: the information elements from the last Beacon frame
+ * @len_beacon_ies: total length of the beacon_ies
+ * @proberesp_ies: the information elements from the last Probe Response frame
+ * @len_proberesp_ies: total length of the proberesp_ies
+ * @signal: signal strength value (type depends on the wiphy's signal_type)
+ * @free_priv: function pointer to free private data
+ * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
+ */
+struct cfg80211_bss {
+ struct ieee80211_channel *channel;
+
+ u8 bssid[ETH_ALEN];
+ u64 tsf;
+ u16 beacon_interval;
+ u16 capability;
+ u8 *information_elements;
+ size_t len_information_elements;
+ u8 *beacon_ies;
+ size_t len_beacon_ies;
+ u8 *proberesp_ies;
+ size_t len_proberesp_ies;
+
+ s32 signal;
+
+ void (*free_priv)(struct cfg80211_bss *bss);
+ u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
+};
+
+/**
+ * ieee80211_bss_get_ie - find IE with given ID
+ * @bss: the bss to search
+ * @ie: the IE ID
+ * Returns %NULL if not found.
+ */
+const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
+
+
+/**
+ * struct cfg80211_auth_request - Authentication request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * authentication.
+ *
+ * @bss: The BSS to authenticate with.
+ * @auth_type: Authentication type (algorithm)
+ * @ie: Extra IEs to add to Authentication frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ * @key_len: length of WEP key for shared key authentication
+ * @key_idx: index of WEP key for shared key authentication
+ * @key: WEP key for shared key authentication
+ */
+struct cfg80211_auth_request {
+ struct cfg80211_bss *bss;
+ const u8 *ie;
+ size_t ie_len;
+ enum nl80211_auth_type auth_type;
+ const u8 *key;
+ u8 key_len, key_idx;
+};
+
+/**
+ * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
+ *
+ * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
+ */
+enum cfg80211_assoc_req_flags {
+ ASSOC_REQ_DISABLE_HT = BIT(0),
+};
+
+/**
+ * struct cfg80211_assoc_request - (Re)Association request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * (re)association.
+ * @bss: The BSS to associate with. If the call is successful the driver
+ * is given a reference that it must release, normally via a call to
+ * cfg80211_send_rx_assoc(), or, if association timed out, with a
+ * call to cfg80211_put_bss() (in addition to calling
+ * cfg80211_send_assoc_timeout())
+ * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
+ * @crypto: crypto settings
+ * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
+ * @flags: See &enum cfg80211_assoc_req_flags
+ * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
+ * will be used in ht_capa. Un-supported values will be ignored.
+ * @ht_capa_mask: The bits of ht_capa which are to be used.
+ */
+struct cfg80211_assoc_request {
+ struct cfg80211_bss *bss;
+ const u8 *ie, *prev_bssid;
+ size_t ie_len;
+ struct cfg80211_crypto_settings crypto;
+ bool use_mfp;
+ u32 flags;
+ struct ieee80211_ht_cap ht_capa;
+ struct ieee80211_ht_cap ht_capa_mask;
+};
+
+/**
+ * struct cfg80211_deauth_request - Deauthentication request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * deauthentication.
+ *
+ * @bssid: the BSSID of the BSS to deauthenticate from
+ * @ie: Extra IEs to add to Deauthentication frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ * @reason_code: The reason code for the deauthentication
+ */
+struct cfg80211_deauth_request {
+ const u8 *bssid;
+ const u8 *ie;
+ size_t ie_len;
+ u16 reason_code;
+};
+
+/**
+ * struct cfg80211_disassoc_request - Disassociation request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * disassocation.
+ *
+ * @bss: the BSS to disassociate from
+ * @ie: Extra IEs to add to Disassociation frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ * @reason_code: The reason code for the disassociation
+ * @local_state_change: This is a request for a local state only, i.e., no
+ * Disassociation frame is to be transmitted.
+ */
+struct cfg80211_disassoc_request {
+ struct cfg80211_bss *bss;
+ const u8 *ie;
+ size_t ie_len;
+ u16 reason_code;
+ bool local_state_change;
+};
+
+/**
+ * struct cfg80211_ibss_params - IBSS parameters
+ *
+ * This structure defines the IBSS parameters for the join_ibss()
+ * method.
+ *
+ * @ssid: The SSID, will always be non-null.
+ * @ssid_len: The length of the SSID, will always be non-zero.
+ * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
+ * search for IBSSs with a different BSSID.
+ * @channel: The channel to use if no IBSS can be found to join.
+ * @channel_type: channel type (HT mode)
+ * @channel_fixed: The channel should be fixed -- do not search for
+ * IBSSs to join on other channels.
+ * @ie: information element(s) to include in the beacon
+ * @ie_len: length of that
+ * @beacon_interval: beacon interval to use
+ * @privacy: this is a protected network, keys will be configured
+ * after joining
+ * @control_port: whether user space controls IEEE 802.1X port, i.e.,
+ * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
+ * required to assume that the port is unauthorized until authorized by
+ * user space. Otherwise, port is marked authorized by default.
+ * @basic_rates: bitmap of basic rates to use when creating the IBSS
+ * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
+ */
+struct cfg80211_ibss_params {
+ u8 *ssid;
+ u8 *bssid;
+ struct ieee80211_channel *channel;
+ enum nl80211_channel_type channel_type;
+ u8 *ie;
+ u8 ssid_len, ie_len;
+ u16 beacon_interval;
+ u32 basic_rates;
+ bool channel_fixed;
+ bool privacy;
+ bool control_port;
+ int mcast_rate[IEEE80211_NUM_BANDS];
+};
+
+/**
+ * struct cfg80211_connect_params - Connection parameters
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * authentication and association.
+ *
+ * @channel: The channel to use or %NULL if not specified (auto-select based
+ * on scan results)
+ * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
+ * results)
+ * @ssid: SSID
+ * @ssid_len: Length of ssid in octets
+ * @auth_type: Authentication type (algorithm)
+ * @ie: IEs for association request
+ * @ie_len: Length of assoc_ie in octets
+ * @privacy: indicates whether privacy-enabled APs should be used
+ * @crypto: crypto settings
+ * @key_len: length of WEP key for shared key authentication
+ * @key_idx: index of WEP key for shared key authentication
+ * @key: WEP key for shared key authentication
+ * @flags: See &enum cfg80211_assoc_req_flags
+ * @bg_scan_period: Background scan period in seconds
+ * or -1 to indicate that default value is to be used.
+ * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
+ * will be used in ht_capa. Un-supported values will be ignored.
+ * @ht_capa_mask: The bits of ht_capa which are to be used.
+ */
+struct cfg80211_connect_params {
+ struct ieee80211_channel *channel;
+ u8 *bssid;
+ u8 *ssid;
+ size_t ssid_len;
+ enum nl80211_auth_type auth_type;
+ u8 *ie;
+ size_t ie_len;
+ bool privacy;
+ struct cfg80211_crypto_settings crypto;
+ const u8 *key;
+ u8 key_len, key_idx;
+ u32 flags;
+ int bg_scan_period;
+ struct ieee80211_ht_cap ht_capa;
+ struct ieee80211_ht_cap ht_capa_mask;
+};
+
+/**
+ * enum wiphy_params_flags - set_wiphy_params bitfield values
+ * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
+ * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
+ * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
+ * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
+ * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
+ */
+enum wiphy_params_flags {
+ WIPHY_PARAM_RETRY_SHORT = 1 << 0,
+ WIPHY_PARAM_RETRY_LONG = 1 << 1,
+ WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
+ WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
+ WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
+};
+
+/*
+ * cfg80211_bitrate_mask - masks for bitrate control
+ */
+struct cfg80211_bitrate_mask {
+ struct {
+ u32 legacy;
+ u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
+ } control[IEEE80211_NUM_BANDS];
+};
+/**
+ * struct cfg80211_pmksa - PMK Security Association
+ *
+ * This structure is passed to the set/del_pmksa() method for PMKSA
+ * caching.
+ *
+ * @bssid: The AP's BSSID.
+ * @pmkid: The PMK material itself.
+ */
+struct cfg80211_pmksa {
+ u8 *bssid;
+ u8 *pmkid;
+};
+
+/**
+ * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
+ * @mask: bitmask where to match pattern and where to ignore bytes,
+ * one bit per byte, in same format as nl80211
+ * @pattern: bytes to match where bitmask is 1
+ * @pattern_len: length of pattern (in bytes)
+ *
+ * Internal note: @mask and @pattern are allocated in one chunk of
+ * memory, free @mask only!
+ */
+struct cfg80211_wowlan_trig_pkt_pattern {
+ u8 *mask, *pattern;
+ int pattern_len;
+};
+
+/**
+ * struct cfg80211_wowlan - Wake on Wireless-LAN support info
+ *
+ * This structure defines the enabled WoWLAN triggers for the device.
+ * @any: wake up on any activity -- special trigger if device continues
+ * operating as normal during suspend
+ * @disconnect: wake up if getting disconnected
+ * @magic_pkt: wake up on receiving magic packet
+ * @patterns: wake up on receiving packet matching a pattern
+ * @n_patterns: number of patterns
+ * @gtk_rekey_failure: wake up on GTK rekey failure
+ * @eap_identity_req: wake up on EAP identity request packet
+ * @four_way_handshake: wake up on 4-way handshake
+ * @rfkill_release: wake up when rfkill is released
+ */
+struct cfg80211_wowlan {
+ bool any, disconnect, magic_pkt, gtk_rekey_failure,
+ eap_identity_req, four_way_handshake,
+ rfkill_release;
+ struct cfg80211_wowlan_trig_pkt_pattern *patterns;
+ int n_patterns;
+};
+
+/**
+ * struct cfg80211_gtk_rekey_data - rekey data
+ * @kek: key encryption key
+ * @kck: key confirmation key
+ * @replay_ctr: replay counter
+ */
+struct cfg80211_gtk_rekey_data {
+ u8 kek[NL80211_KEK_LEN];
+ u8 kck[NL80211_KCK_LEN];
+ u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+};
+
+/**
+ * struct cfg80211_ops - backend description for wireless configuration
+ *
+ * This struct is registered by fullmac card drivers and/or wireless stacks
+ * in order to handle configuration requests on their interfaces.
+ *
+ * All callbacks except where otherwise noted should return 0
+ * on success or a negative error code.
+ *
+ * All operations are currently invoked under rtnl for consistency with the
+ * wireless extensions but this is subject to reevaluation as soon as this
+ * code is used more widely and we have a first user without wext.
+ *
+ * @suspend: wiphy device needs to be suspended. The variable @wow will
+ * be %NULL or contain the enabled Wake-on-Wireless triggers that are
+ * configured for the device.
+ * @resume: wiphy device needs to be resumed
+ *
+ * @add_virtual_intf: create a new virtual interface with the given name,
+ * must set the struct wireless_dev's iftype. Beware: You must create
+ * the new netdev in the wiphy's network namespace! Returns the netdev,
+ * or an ERR_PTR.
+ *
+ * @del_virtual_intf: remove the virtual interface determined by ifindex.
+ *
+ * @change_virtual_intf: change type/configuration of virtual interface,
+ * keep the struct wireless_dev's iftype updated.
+ *
+ * @add_key: add a key with the given parameters. @mac_addr will be %NULL
+ * when adding a group key.
+ *
+ * @get_key: get information about the key with the given parameters.
+ * @mac_addr will be %NULL when requesting information for a group
+ * key. All pointers given to the @callback function need not be valid
+ * after it returns. This function should return an error if it is
+ * not possible to retrieve the key, -ENOENT if it doesn't exist.
+ *
+ * @del_key: remove a key given the @mac_addr (%NULL for a group key)
+ * and @key_index, return -ENOENT if the key doesn't exist.
+ *
+ * @set_default_key: set the default key on an interface
+ *
+ * @set_default_mgmt_key: set the default management frame key on an interface
+ *
+ * @set_rekey_data: give the data necessary for GTK rekeying to the driver
+ *
+ * @start_ap: Start acting in AP mode defined by the parameters.
+ * @change_beacon: Change the beacon parameters for an access point mode
+ * interface. This should reject the call when AP mode wasn't started.
+ * @stop_ap: Stop being an AP, including stopping beaconing.
+ *
+ * @add_station: Add a new station.
+ * @del_station: Remove a station; @mac may be NULL to remove all stations.
+ * @change_station: Modify a given station. Note that flags changes are not much
+ * validated in cfg80211, in particular the auth/assoc/authorized flags
+ * might come to the driver in invalid combinations -- make sure to check
+ * them, also against the existing state! Also, supported_rates changes are
+ * not checked in station mode -- drivers need to reject (or ignore) them
+ * for anything but TDLS peers.
+ * @get_station: get station information for the station identified by @mac
+ * @dump_station: dump station callback -- resume dump at index @idx
+ *
+ * @add_mpath: add a fixed mesh path
+ * @del_mpath: delete a given mesh path
+ * @change_mpath: change a given mesh path
+ * @get_mpath: get a mesh path for the given parameters
+ * @dump_mpath: dump mesh path callback -- resume dump at index @idx
+ * @join_mesh: join the mesh network with the specified parameters
+ * @leave_mesh: leave the current mesh network
+ *
+ * @get_mesh_config: Get the current mesh configuration
+ *
+ * @update_mesh_config: Update mesh parameters on a running mesh.
+ * The mask is a bitfield which tells us which parameters to
+ * set, and which to leave alone.
+ *
+ * @change_bss: Modify parameters for a given BSS.
+ *
+ * @set_txq_params: Set TX queue parameters
+ *
+ * @set_channel: Set channel for a given wireless interface. Some devices
+ * may support multi-channel operation (by channel hopping) so cfg80211
+ * doesn't verify much. Note, however, that the passed netdev may be
+ * %NULL as well if the user requested changing the channel for the
+ * device itself, or for a monitor interface.
+ * @get_channel: Get the current operating channel, should return %NULL if
+ * there's no single defined operating channel if for example the
+ * device implements channel hopping for multi-channel virtual interfaces.
+ *
+ * @scan: Request to do a scan. If returning zero, the scan request is given
+ * the driver, and will be valid until passed to cfg80211_scan_done().
+ * For scan results, call cfg80211_inform_bss(); you can call this outside
+ * the scan/scan_done bracket too.
+ *
+ * @auth: Request to authenticate with the specified peer
+ * @assoc: Request to (re)associate with the specified peer
+ * @deauth: Request to deauthenticate from the specified peer
+ * @disassoc: Request to disassociate from the specified peer
+ *
+ * @connect: Connect to the ESS with the specified parameters. When connected,
+ * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
+ * If the connection fails for some reason, call cfg80211_connect_result()
+ * with the status from the AP.
+ * @disconnect: Disconnect from the BSS/ESS.
+ *
+ * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
+ * cfg80211_ibss_joined(), also call that function when changing BSSID due
+ * to a merge.
+ * @leave_ibss: Leave the IBSS.
+ *
+ * @set_wiphy_params: Notify that wiphy parameters have changed;
+ * @changed bitfield (see &enum wiphy_params_flags) describes which values
+ * have changed. The actual parameter values are available in
+ * struct wiphy. If returning an error, no value should be changed.
+ *
+ * @set_tx_power: set the transmit power according to the parameters,
+ * the power passed is in mBm, to get dBm use MBM_TO_DBM().
+ * @get_tx_power: store the current TX power into the dbm variable;
+ * return 0 if successful
+ *
+ * @set_wds_peer: set the WDS peer for a WDS interface
+ *
+ * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
+ * functions to adjust rfkill hw state
+ *
+ * @dump_survey: get site survey information.
+ *
+ * @remain_on_channel: Request the driver to remain awake on the specified
+ * channel for the specified duration to complete an off-channel
+ * operation (e.g., public action frame exchange). When the driver is
+ * ready on the requested channel, it must indicate this with an event
+ * notification by calling cfg80211_ready_on_channel().
+ * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
+ * This allows the operation to be terminated prior to timeout based on
+ * the duration value.
+ * @mgmt_tx: Transmit a management frame.
+ * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
+ * frame on another channel
+ *
+ * @testmode_cmd: run a test mode command
+ * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
+ * used by the function, but 0 and 1 must not be touched. Additionally,
+ * return error codes other than -ENOBUFS and -ENOENT will terminate the
+ * dump and return to userspace with an error, so be careful. If any data
+ * was passed in from userspace then the data/len arguments will be present
+ * and point to the data contained in %NL80211_ATTR_TESTDATA.
+ *
+ * @set_bitrate_mask: set the bitrate mask configuration
+ *
+ * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
+ * devices running firmwares capable of generating the (re) association
+ * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
+ * @del_pmksa: Delete a cached PMKID.
+ * @flush_pmksa: Flush all cached PMKIDs.
+ * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
+ * allows the driver to adjust the dynamic ps timeout value.
+ * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
+ * @sched_scan_start: Tell the driver to start a scheduled scan.
+ * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
+ * scan. The driver_initiated flag specifies whether the driver
+ * itself has informed that the scan has stopped.
+ *
+ * @mgmt_frame_register: Notify driver that a management frame type was
+ * registered. Note that this callback may not sleep, and cannot run
+ * concurrently with itself.
+ *
+ * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
+ * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
+ * reject TX/RX mask combinations they cannot support by returning -EINVAL
+ * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
+ *
+ * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
+ *
+ * @set_ringparam: Set tx and rx ring sizes.
+ *
+ * @get_ringparam: Get tx and rx ring current and maximum sizes.
+ *
+ * @tdls_mgmt: Transmit a TDLS management frame.
+ * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
+ *
+ * @probe_client: probe an associated client, must return a cookie that it
+ * later passes to cfg80211_probe_status().
+ *
+ * @set_noack_map: Set the NoAck Map for the TIDs.
+ */
+struct cfg80211_ops {
+ int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
+ int (*resume)(struct wiphy *wiphy);
+
+ struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,
+ char *name,
+ enum nl80211_iftype type,
+ u32 *flags,
+ struct vif_params *params);
+ int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
+ int (*change_virtual_intf)(struct wiphy *wiphy,
+ struct net_device *dev,
+ enum nl80211_iftype type, u32 *flags,
+ struct vif_params *params);
+
+ int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, bool pairwise, const u8 *mac_addr,
+ struct key_params *params);
+ int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, bool pairwise, const u8 *mac_addr,
+ void *cookie,
+ void (*callback)(void *cookie, struct key_params*));
+ int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, bool pairwise, const u8 *mac_addr);
+ int (*set_default_key)(struct wiphy *wiphy,
+ struct net_device *netdev,
+ u8 key_index, bool unicast, bool multicast);
+ int (*set_default_mgmt_key)(struct wiphy *wiphy,
+ struct net_device *netdev,
+ u8 key_index);
+
+ int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_ap_settings *settings);
+ int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_beacon_data *info);
+ int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
+
+
+ int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_parameters *params);
+ int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac);
+ int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_parameters *params);
+ int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_info *sinfo);
+ int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
+ int idx, u8 *mac, struct station_info *sinfo);
+
+ int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *dst, u8 *next_hop);
+ int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *dst);
+ int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *dst, u8 *next_hop);
+ int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *dst, u8 *next_hop,
+ struct mpath_info *pinfo);
+ int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
+ int idx, u8 *dst, u8 *next_hop,
+ struct mpath_info *pinfo);
+ int (*get_mesh_config)(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct mesh_config *conf);
+ int (*update_mesh_config)(struct wiphy *wiphy,
+ struct net_device *dev, u32 mask,
+ const struct mesh_config *nconf);
+ int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
+ const struct mesh_config *conf,
+ const struct mesh_setup *setup);
+ int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
+
+ int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
+ struct bss_parameters *params);
+
+ int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
+ struct ieee80211_txq_params *params);
+
+ int (*set_channel)(struct wiphy *wiphy, struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type);
+
+ int (*scan)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_scan_request *request);
+
+ int (*auth)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_auth_request *req);
+ int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_assoc_request *req);
+ int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_deauth_request *req);
+ int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_disassoc_request *req);
+
+ int (*connect)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_connect_params *sme);
+ int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
+ u16 reason_code);
+
+ int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_ibss_params *params);
+ int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
+
+ int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
+
+ int (*set_tx_power)(struct wiphy *wiphy,
+ enum nl80211_tx_power_setting type, int mbm);
+ int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
+
+ int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *addr);
+
+ void (*rfkill_poll)(struct wiphy *wiphy);
+
+#ifdef CONFIG_NL80211_TESTMODE
+ int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
+ int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
+ struct netlink_callback *cb,
+ void *data, int len);
+#endif
+
+ int (*set_bitrate_mask)(struct wiphy *wiphy,
+ struct net_device *dev,
+ const u8 *peer,
+ const struct cfg80211_bitrate_mask *mask);
+
+ int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
+ int idx, struct survey_info *info);
+
+ int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_pmksa *pmksa);
+ int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_pmksa *pmksa);
+ int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
+
+ int (*remain_on_channel)(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int duration,
+ u64 *cookie);
+ int (*cancel_remain_on_channel)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u64 cookie);
+
+ int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
+ struct ieee80211_channel *chan, bool offchan,
+ enum nl80211_channel_type channel_type,
+ bool channel_type_valid, unsigned int wait,
+ const u8 *buf, size_t len, bool no_cck,
+ bool dont_wait_for_ack, u64 *cookie);
+ int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u64 cookie);
+
+ int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
+ bool enabled, int timeout);
+
+ int (*set_cqm_rssi_config)(struct wiphy *wiphy,
+ struct net_device *dev,
+ s32 rssi_thold, u32 rssi_hyst);
+
+ void (*mgmt_frame_register)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u16 frame_type, bool reg);
+
+ int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
+ int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
+
+ int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
+ void (*get_ringparam)(struct wiphy *wiphy,
+ u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
+
+ int (*sched_scan_start)(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct cfg80211_sched_scan_request *request);
+ int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
+
+ int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_gtk_rekey_data *data);
+
+ int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *peer, u8 action_code, u8 dialog_token,
+ u16 status_code, const u8 *buf, size_t len);
+ int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *peer, enum nl80211_tdls_operation oper);
+
+ int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *peer, u64 *cookie);
+
+ int (*set_noack_map)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u16 noack_map);
+
+ struct ieee80211_channel *(*get_channel)(struct wiphy *wiphy);
+};
+
+/*
+ * wireless hardware and networking interfaces structures
+ * and registration/helper functions
+ */
+
+/**
+ * enum wiphy_flags - wiphy capability flags
+ *
+ * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
+ * has its own custom regulatory domain and cannot identify the
+ * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
+ * we will disregard the first regulatory hint (when the
+ * initiator is %REGDOM_SET_BY_CORE).
+ * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
+ * ignore regulatory domain settings until it gets its own regulatory
+ * domain via its regulatory_hint() unless the regulatory hint is
+ * from a country IE. After its gets its own regulatory domain it will
+ * only allow further regulatory domain settings to further enhance
+ * compliance. For example if channel 13 and 14 are disabled by this
+ * regulatory domain no user regulatory domain can enable these channels
+ * at a later time. This can be used for devices which do not have
+ * calibration information guaranteed for frequencies or settings
+ * outside of its regulatory domain. If used in combination with
+ * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
+ * will be followed.
+ * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
+ * that passive scan flags and beaconing flags may not be lifted by
+ * cfg80211 due to regulatory beacon hints. For more information on beacon
+ * hints read the documenation for regulatory_hint_found_beacon()
+ * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
+ * wiphy at all
+ * @WIPHY_FLAG_ENFORCE_COMBINATIONS: Set this flag to enforce interface
+ * combinations for this device. This flag is used for backward
+ * compatibility only until all drivers advertise combinations and
+ * they will always be enforced.
+ * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
+ * by default -- this flag will be set depending on the kernel's default
+ * on wiphy_new(), but can be changed by the driver if it has a good
+ * reason to override the default
+ * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
+ * on a VLAN interface)
+ * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
+ * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
+ * control port protocol ethertype. The device also honours the
+ * control_port_no_encrypt flag.
+ * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
+ * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
+ * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
+ * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
+ * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
+ * firmware.
+ * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
+ * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
+ * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
+ * link setup/discovery operations internally. Setup, discovery and
+ * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
+ * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
+ * used for asking the driver/firmware to perform a TDLS operation.
+ * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
+ * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
+ * when there are virtual interfaces in AP mode by calling
+ * cfg80211_report_obss_beacon().
+ * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
+ * responds to probe-requests in hardware.
+ * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
+ * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
+ */
+enum wiphy_flags {
+ WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
+ WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
+ WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
+ WIPHY_FLAG_NETNS_OK = BIT(3),
+ WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
+ WIPHY_FLAG_4ADDR_AP = BIT(5),
+ WIPHY_FLAG_4ADDR_STATION = BIT(6),
+ WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
+ WIPHY_FLAG_IBSS_RSN = BIT(8),
+ WIPHY_FLAG_MESH_AUTH = BIT(10),
+ WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
+ WIPHY_FLAG_ENFORCE_COMBINATIONS = BIT(12),
+ WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
+ WIPHY_FLAG_AP_UAPSD = BIT(14),
+ WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
+ WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
+ WIPHY_FLAG_HAVE_AP_SME = BIT(17),
+ WIPHY_FLAG_REPORTS_OBSS = BIT(18),
+ WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
+ WIPHY_FLAG_OFFCHAN_TX = BIT(20),
+ WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
+};
+
+/**
+ * struct ieee80211_iface_limit - limit on certain interface types
+ * @max: maximum number of interfaces of these types
+ * @types: interface types (bits)
+ */
+struct ieee80211_iface_limit {
+ u16 max;
+ u16 types;
+};
+
+/**
+ * struct ieee80211_iface_combination - possible interface combination
+ * @limits: limits for the given interface types
+ * @n_limits: number of limitations
+ * @num_different_channels: can use up to this many different channels
+ * @max_interfaces: maximum number of interfaces in total allowed in this
+ * group
+ * @beacon_int_infra_match: In this combination, the beacon intervals
+ * between infrastructure and AP types must match. This is required
+ * only in special cases.
+ *
+ * These examples can be expressed as follows:
+ *
+ * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
+ *
+ * struct ieee80211_iface_limit limits1[] = {
+ * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
+ * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
+ * };
+ * struct ieee80211_iface_combination combination1 = {
+ * .limits = limits1,
+ * .n_limits = ARRAY_SIZE(limits1),
+ * .max_interfaces = 2,
+ * .beacon_int_infra_match = true,
+ * };
+ *
+ *
+ * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
+ *
+ * struct ieee80211_iface_limit limits2[] = {
+ * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
+ * BIT(NL80211_IFTYPE_P2P_GO), },
+ * };
+ * struct ieee80211_iface_combination combination2 = {
+ * .limits = limits2,
+ * .n_limits = ARRAY_SIZE(limits2),
+ * .max_interfaces = 8,
+ * .num_different_channels = 1,
+ * };
+ *
+ *
+ * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
+ * This allows for an infrastructure connection and three P2P connections.
+ *
+ * struct ieee80211_iface_limit limits3[] = {
+ * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
+ * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
+ * BIT(NL80211_IFTYPE_P2P_CLIENT), },
+ * };
+ * struct ieee80211_iface_combination combination3 = {
+ * .limits = limits3,
+ * .n_limits = ARRAY_SIZE(limits3),
+ * .max_interfaces = 4,
+ * .num_different_channels = 2,
+ * };
+ */
+struct ieee80211_iface_combination {
+ const struct ieee80211_iface_limit *limits;
+ u32 num_different_channels;
+ u16 max_interfaces;
+ u8 n_limits;
+ bool beacon_int_infra_match;
+};
+
+struct mac_address {
+ u8 addr[ETH_ALEN];
+};
+
+struct ieee80211_txrx_stypes {
+ u16 tx, rx;
+};
+
+/**
+ * enum wiphy_wowlan_support_flags - WoWLAN support flags
+ * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
+ * trigger that keeps the device operating as-is and
+ * wakes up the host on any activity, for example a
+ * received packet that passed filtering; note that the
+ * packet should be preserved in that case
+ * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
+ * (see nl80211.h)
+ * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
+ * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
+ * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
+ * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
+ * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
+ * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
+ */
+enum wiphy_wowlan_support_flags {
+ WIPHY_WOWLAN_ANY = BIT(0),
+ WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
+ WIPHY_WOWLAN_DISCONNECT = BIT(2),
+ WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
+ WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
+ WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
+ WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
+ WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
+};
+
+/**
+ * struct wiphy_wowlan_support - WoWLAN support data
+ * @flags: see &enum wiphy_wowlan_support_flags
+ * @n_patterns: number of supported wakeup patterns
+ * (see nl80211.h for the pattern definition)
+ * @pattern_max_len: maximum length of each pattern
+ * @pattern_min_len: minimum length of each pattern
+ */
+struct wiphy_wowlan_support {
+ u32 flags;
+ int n_patterns;
+ int pattern_max_len;
+ int pattern_min_len;
+};
+
+/**
+ * struct wiphy - wireless hardware description
+ * @reg_notifier: the driver's regulatory notification callback,
+ * note that if your driver uses wiphy_apply_custom_regulatory()
+ * the reg_notifier's request can be passed as NULL
+ * @regd: the driver's regulatory domain, if one was requested via
+ * the regulatory_hint() API. This can be used by the driver
+ * on the reg_notifier() if it chooses to ignore future
+ * regulatory domain changes caused by other drivers.
+ * @signal_type: signal type reported in &struct cfg80211_bss.
+ * @cipher_suites: supported cipher suites
+ * @n_cipher_suites: number of supported cipher suites
+ * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
+ * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
+ * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
+ * -1 = fragmentation disabled, only odd values >= 256 used
+ * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
+ * @_net: the network namespace this wiphy currently lives in
+ * @perm_addr: permanent MAC address of this device
+ * @addr_mask: If the device supports multiple MAC addresses by masking,
+ * set this to a mask with variable bits set to 1, e.g. if the last
+ * four bits are variable then set it to 00:...:00:0f. The actual
+ * variable bits shall be determined by the interfaces added, with
+ * interfaces not matching the mask being rejected to be brought up.
+ * @n_addresses: number of addresses in @addresses.
+ * @addresses: If the device has more than one address, set this pointer
+ * to a list of addresses (6 bytes each). The first one will be used
+ * by default for perm_addr. In this case, the mask should be set to
+ * all-zeroes. In this case it is assumed that the device can handle
+ * the same number of arbitrary MAC addresses.
+ * @registered: protects ->resume and ->suspend sysfs callbacks against
+ * unregister hardware
+ * @debugfsdir: debugfs directory used for this wiphy, will be renamed
+ * automatically on wiphy renames
+ * @dev: (virtual) struct device for this wiphy
+ * @registered: helps synchronize suspend/resume with wiphy unregister
+ * @wext: wireless extension handlers
+ * @priv: driver private data (sized according to wiphy_new() parameter)
+ * @interface_modes: bitmask of interfaces types valid for this wiphy,
+ * must be set by driver
+ * @iface_combinations: Valid interface combinations array, should not
+ * list single interface types.
+ * @n_iface_combinations: number of entries in @iface_combinations array.
+ * @software_iftypes: bitmask of software interface types, these are not
+ * subject to any restrictions since they are purely managed in SW.
+ * @flags: wiphy flags, see &enum wiphy_flags
+ * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
+ * @bss_priv_size: each BSS struct has private data allocated with it,
+ * this variable determines its size
+ * @max_scan_ssids: maximum number of SSIDs the device can scan for in
+ * any given scan
+ * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
+ * for in any given scheduled scan
+ * @max_match_sets: maximum number of match sets the device can handle
+ * when performing a scheduled scan, 0 if filtering is not
+ * supported.
+ * @max_scan_ie_len: maximum length of user-controlled IEs device can
+ * add to probe request frames transmitted during a scan, must not
+ * include fixed IEs like supported rates
+ * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
+ * scans
+ * @coverage_class: current coverage class
+ * @fw_version: firmware version for ethtool reporting
+ * @hw_version: hardware version for ethtool reporting
+ * @max_num_pmkids: maximum number of PMKIDs supported by device
+ * @privid: a pointer that drivers can use to identify if an arbitrary
+ * wiphy is theirs, e.g. in global notifiers
+ * @bands: information about bands/channels supported by this device
+ *
+ * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
+ * transmitted through nl80211, points to an array indexed by interface
+ * type
+ *
+ * @available_antennas_tx: bitmap of antennas which are available to be
+ * configured as TX antennas. Antenna configuration commands will be
+ * rejected unless this or @available_antennas_rx is set.
+ *
+ * @available_antennas_rx: bitmap of antennas which are available to be
+ * configured as RX antennas. Antenna configuration commands will be
+ * rejected unless this or @available_antennas_tx is set.
+ *
+ * @probe_resp_offload:
+ * Bitmap of supported protocols for probe response offloading.
+ * See &enum nl80211_probe_resp_offload_support_attr. Only valid
+ * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
+ *
+ * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
+ * may request, if implemented.
+ *
+ * @wowlan: WoWLAN support information
+ *
+ * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
+ * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
+ * If null, then none can be over-ridden.
+ */
+struct wiphy {
+ /* assign these fields before you register the wiphy */
+
+ /* permanent MAC address(es) */
+ u8 perm_addr[ETH_ALEN];
+ u8 addr_mask[ETH_ALEN];
+
+ struct mac_address *addresses;
+
+ const struct ieee80211_txrx_stypes *mgmt_stypes;
+
+ const struct ieee80211_iface_combination *iface_combinations;
+ int n_iface_combinations;
+ u16 software_iftypes;
+
+ u16 n_addresses;
+
+ /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
+ u16 interface_modes;
+
+ u32 flags, features;
+
+ u32 ap_sme_capa;
+
+ enum cfg80211_signal_type signal_type;
+
+ int bss_priv_size;
+ u8 max_scan_ssids;
+ u8 max_sched_scan_ssids;
+ u8 max_match_sets;
+ u16 max_scan_ie_len;
+ u16 max_sched_scan_ie_len;
+
+ int n_cipher_suites;
+ const u32 *cipher_suites;
+
+ u8 retry_short;
+ u8 retry_long;
+ u32 frag_threshold;
+ u32 rts_threshold;
+ u8 coverage_class;
+
+ char fw_version[ETHTOOL_BUSINFO_LEN];
+ u32 hw_version;
+
+ struct wiphy_wowlan_support wowlan;
+
+ u16 max_remain_on_channel_duration;
+
+ u8 max_num_pmkids;
+
+ u32 available_antennas_tx;
+ u32 available_antennas_rx;
+
+ /*
+ * Bitmap of supported protocols for probe response offloading
+ * see &enum nl80211_probe_resp_offload_support_attr. Only valid
+ * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
+ */
+ u32 probe_resp_offload;
+
+ /* If multiple wiphys are registered and you're handed e.g.
+ * a regular netdev with assigned ieee80211_ptr, you won't
+ * know whether it points to a wiphy your driver has registered
+ * or not. Assign this to something global to your driver to
+ * help determine whether you own this wiphy or not. */
+ const void *privid;
+
+ struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
+
+ /* Lets us get back the wiphy on the callback */
+ int (*reg_notifier)(struct wiphy *wiphy,
+ struct regulatory_request *request);
+
+ /* fields below are read-only, assigned by cfg80211 */
+
+ const struct ieee80211_regdomain *regd;
+
+ /* the item in /sys/class/ieee80211/ points to this,
+ * you need use set_wiphy_dev() (see below) */
+ struct device dev;
+
+ /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
+ bool registered;
+
+ /* dir in debugfs: ieee80211/<wiphyname> */
+ struct dentry *debugfsdir;
+
+ const struct ieee80211_ht_cap *ht_capa_mod_mask;
+
+#ifdef CONFIG_NET_NS
+ /* the network namespace this phy lives in currently */
+ struct net *_net;
+#endif
+
+#ifdef CONFIG_CFG80211_WEXT
+ const struct iw_handler_def *wext;
+#endif
+
+ char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+static inline struct net *wiphy_net(struct wiphy *wiphy)
+{
+ return read_pnet(&wiphy->_net);
+}
+
+static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
+{
+ write_pnet(&wiphy->_net, net);
+}
+
+/**
+ * wiphy_priv - return priv from wiphy
+ *
+ * @wiphy: the wiphy whose priv pointer to return
+ */
+static inline void *wiphy_priv(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return &wiphy->priv;
+}
+
+/**
+ * priv_to_wiphy - return the wiphy containing the priv
+ *
+ * @priv: a pointer previously returned by wiphy_priv
+ */
+static inline struct wiphy *priv_to_wiphy(void *priv)
+{
+ BUG_ON(!priv);
+ return container_of(priv, struct wiphy, priv);
+}
+
+/**
+ * set_wiphy_dev - set device pointer for wiphy
+ *
+ * @wiphy: The wiphy whose device to bind
+ * @dev: The device to parent it to
+ */
+static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
+{
+ wiphy->dev.parent = dev;
+}
+
+/**
+ * wiphy_dev - get wiphy dev pointer
+ *
+ * @wiphy: The wiphy whose device struct to look up
+ */
+static inline struct device *wiphy_dev(struct wiphy *wiphy)
+{
+ return wiphy->dev.parent;
+}
+
+/**
+ * wiphy_name - get wiphy name
+ *
+ * @wiphy: The wiphy whose name to return
+ */
+static inline const char *wiphy_name(const struct wiphy *wiphy)
+{
+ return dev_name(&wiphy->dev);
+}
+
+/**
+ * wiphy_new - create a new wiphy for use with cfg80211
+ *
+ * @ops: The configuration operations for this device
+ * @sizeof_priv: The size of the private area to allocate
+ *
+ * Create a new wiphy and associate the given operations with it.
+ * @sizeof_priv bytes are allocated for private use.
+ *
+ * The returned pointer must be assigned to each netdev's
+ * ieee80211_ptr for proper operation.
+ */
+struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
+
+/**
+ * wiphy_register - register a wiphy with cfg80211
+ *
+ * @wiphy: The wiphy to register.
+ *
+ * Returns a non-negative wiphy index or a negative error code.
+ */
+extern int wiphy_register(struct wiphy *wiphy);
+
+/**
+ * wiphy_unregister - deregister a wiphy from cfg80211
+ *
+ * @wiphy: The wiphy to unregister.
+ *
+ * After this call, no more requests can be made with this priv
+ * pointer, but the call may sleep to wait for an outstanding
+ * request that is being handled.
+ */
+extern void wiphy_unregister(struct wiphy *wiphy);
+
+/**
+ * wiphy_free - free wiphy
+ *
+ * @wiphy: The wiphy to free
+ */
+extern void wiphy_free(struct wiphy *wiphy);
+
+/* internal structs */
+struct cfg80211_conn;
+struct cfg80211_internal_bss;
+struct cfg80211_cached_keys;
+
+/**
+ * struct wireless_dev - wireless per-netdev state
+ *
+ * This structure must be allocated by the driver/stack
+ * that uses the ieee80211_ptr field in struct net_device
+ * (this is intentional so it can be allocated along with
+ * the netdev.)
+ *
+ * @wiphy: pointer to hardware description
+ * @iftype: interface type
+ * @list: (private) Used to collect the interfaces
+ * @netdev: (private) Used to reference back to the netdev
+ * @current_bss: (private) Used by the internal configuration code
+ * @channel: (private) Used by the internal configuration code to track
+ * user-set AP, monitor and WDS channels for wireless extensions
+ * @bssid: (private) Used by the internal configuration code
+ * @ssid: (private) Used by the internal configuration code
+ * @ssid_len: (private) Used by the internal configuration code
+ * @mesh_id_len: (private) Used by the internal configuration code
+ * @mesh_id_up_len: (private) Used by the internal configuration code
+ * @wext: (private) Used by the internal wireless extensions compat code
+ * @use_4addr: indicates 4addr mode is used on this interface, must be
+ * set by driver (if supported) on add_interface BEFORE registering the
+ * netdev and may otherwise be used by driver read-only, will be update
+ * by cfg80211 on change_interface
+ * @mgmt_registrations: list of registrations for management frames
+ * @mgmt_registrations_lock: lock for the list
+ * @mtx: mutex used to lock data in this struct
+ * @cleanup_work: work struct used for cleanup that can't be done directly
+ * @beacon_interval: beacon interval used on this device for transmitting
+ * beacons, 0 when not valid
+ */
+struct wireless_dev {
+ struct wiphy *wiphy;
+ enum nl80211_iftype iftype;
+
+ /* the remainder of this struct should be private to cfg80211 */
+ struct list_head list;
+ struct net_device *netdev;
+
+ struct list_head mgmt_registrations;
+ spinlock_t mgmt_registrations_lock;
+
+ struct mutex mtx;
+
+ struct work_struct cleanup_work;
+
+ bool use_4addr;
+
+ /* currently used for IBSS and SME - might be rearranged later */
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len, mesh_id_len, mesh_id_up_len;
+ enum {
+ CFG80211_SME_IDLE,
+ CFG80211_SME_CONNECTING,
+ CFG80211_SME_CONNECTED,
+ } sme_state;
+ struct cfg80211_conn *conn;
+ struct cfg80211_cached_keys *connect_keys;
+
+ struct list_head event_list;
+ spinlock_t event_lock;
+
+ struct cfg80211_internal_bss *current_bss; /* associated / joined */
+ struct ieee80211_channel *channel;
+
+ bool ps;
+ int ps_timeout;
+
+ int beacon_interval;
+
+ u32 ap_unexpected_nlpid;
+
+#ifdef CONFIG_CFG80211_WEXT
+ /* wext data */
+ struct {
+ struct cfg80211_ibss_params ibss;
+ struct cfg80211_connect_params connect;
+ struct cfg80211_cached_keys *keys;
+ u8 *ie;
+ size_t ie_len;
+ u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ s8 default_key, default_mgmt_key;
+ bool prev_bssid_valid;
+ } wext;
+#endif
+};
+
+/**
+ * wdev_priv - return wiphy priv from wireless_dev
+ *
+ * @wdev: The wireless device whose wiphy's priv pointer to return
+ */
+static inline void *wdev_priv(struct wireless_dev *wdev)
+{
+ BUG_ON(!wdev);
+ return wiphy_priv(wdev->wiphy);
+}
+
+/**
+ * DOC: Utility functions
+ *
+ * cfg80211 offers a number of utility functions that can be useful.
+ */
+
+/**
+ * ieee80211_channel_to_frequency - convert channel number to frequency
+ * @chan: channel number
+ * @band: band, necessary due to channel number overlap
+ */
+extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
+
+/**
+ * ieee80211_frequency_to_channel - convert frequency to channel number
+ * @freq: center frequency
+ */
+extern int ieee80211_frequency_to_channel(int freq);
+
+/*
+ * Name indirection necessary because the ieee80211 code also has
+ * a function named "ieee80211_get_channel", so if you include
+ * cfg80211's header file you get cfg80211's version, if you try
+ * to include both header files you'll (rightfully!) get a symbol
+ * clash.
+ */
+extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
+ int freq);
+/**
+ * ieee80211_get_channel - get channel struct from wiphy for specified frequency
+ * @wiphy: the struct wiphy to get the channel for
+ * @freq: the center frequency of the channel
+ */
+static inline struct ieee80211_channel *
+ieee80211_get_channel(struct wiphy *wiphy, int freq)
+{
+ return __ieee80211_get_channel(wiphy, freq);
+}
+
+/**
+ * ieee80211_get_response_rate - get basic rate for a given rate
+ *
+ * @sband: the band to look for rates in
+ * @basic_rates: bitmap of basic rates
+ * @bitrate: the bitrate for which to find the basic rate
+ *
+ * This function returns the basic rate corresponding to a given
+ * bitrate, that is the next lower bitrate contained in the basic
+ * rate map, which is, for this function, given as a bitmap of
+ * indices of rates in the band's bitrate table.
+ */
+struct ieee80211_rate *
+ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
+ u32 basic_rates, int bitrate);
+
+/*
+ * Radiotap parsing functions -- for controlled injection support
+ *
+ * Implemented in net/wireless/radiotap.c
+ * Documentation in Documentation/networking/radiotap-headers.txt
+ */
+
+struct radiotap_align_size {
+ uint8_t align:4, size:4;
+};
+
+struct ieee80211_radiotap_namespace {
+ const struct radiotap_align_size *align_size;
+ int n_bits;
+ uint32_t oui;
+ uint8_t subns;
+};
+
+struct ieee80211_radiotap_vendor_namespaces {
+ const struct ieee80211_radiotap_namespace *ns;
+ int n_ns;
+};
+
+/**
+ * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
+ * @this_arg_index: index of current arg, valid after each successful call
+ * to ieee80211_radiotap_iterator_next()
+ * @this_arg: pointer to current radiotap arg; it is valid after each
+ * call to ieee80211_radiotap_iterator_next() but also after
+ * ieee80211_radiotap_iterator_init() where it will point to
+ * the beginning of the actual data portion
+ * @this_arg_size: length of the current arg, for convenience
+ * @current_namespace: pointer to the current namespace definition
+ * (or internally %NULL if the current namespace is unknown)
+ * @is_radiotap_ns: indicates whether the current namespace is the default
+ * radiotap namespace or not
+ *
+ * @_rtheader: pointer to the radiotap header we are walking through
+ * @_max_length: length of radiotap header in cpu byte ordering
+ * @_arg_index: next argument index
+ * @_arg: next argument pointer
+ * @_next_bitmap: internal pointer to next present u32
+ * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
+ * @_vns: vendor namespace definitions
+ * @_next_ns_data: beginning of the next namespace's data
+ * @_reset_on_ext: internal; reset the arg index to 0 when going to the
+ * next bitmap word
+ *
+ * Describes the radiotap parser state. Fields prefixed with an underscore
+ * must not be used by users of the parser, only by the parser internally.
+ */
+
+struct ieee80211_radiotap_iterator {
+ struct ieee80211_radiotap_header *_rtheader;
+ const struct ieee80211_radiotap_vendor_namespaces *_vns;
+ const struct ieee80211_radiotap_namespace *current_namespace;
+
+ unsigned char *_arg, *_next_ns_data;
+ __le32 *_next_bitmap;
+
+ unsigned char *this_arg;
+ int this_arg_index;
+ int this_arg_size;
+
+ int is_radiotap_ns;
+
+ int _max_length;
+ int _arg_index;
+ uint32_t _bitmap_shifter;
+ int _reset_on_ext;
+};
+
+extern int ieee80211_radiotap_iterator_init(
+ struct ieee80211_radiotap_iterator *iterator,
+ struct ieee80211_radiotap_header *radiotap_header,
+ int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
+
+extern int ieee80211_radiotap_iterator_next(
+ struct ieee80211_radiotap_iterator *iterator);
+
+
+extern const unsigned char rfc1042_header[6];
+extern const unsigned char bridge_tunnel_header[6];
+
+/**
+ * ieee80211_get_hdrlen_from_skb - get header length from data
+ *
+ * Given an skb with a raw 802.11 header at the data pointer this function
+ * returns the 802.11 header length in bytes (not including encryption
+ * headers). If the data in the sk_buff is too short to contain a valid 802.11
+ * header the function returns 0.
+ *
+ * @skb: the frame
+ */
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+
+/**
+ * ieee80211_hdrlen - get header length in bytes from frame control
+ * @fc: frame control field in little-endian format
+ */
+unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
+
+/**
+ * DOC: Data path helpers
+ *
+ * In addition to generic utilities, cfg80211 also offers
+ * functions that help implement the data path for devices
+ * that do not do the 802.11/802.3 conversion on the device.
+ */
+
+/**
+ * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
+ * @skb: the 802.11 data frame
+ * @addr: the device MAC address
+ * @iftype: the virtual interface type
+ */
+int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
+ enum nl80211_iftype iftype);
+
+/**
+ * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
+ * @skb: the 802.3 frame
+ * @addr: the device MAC address
+ * @iftype: the virtual interface type
+ * @bssid: the network bssid (used only for iftype STATION and ADHOC)
+ * @qos: build 802.11 QoS data frame
+ */
+int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
+ enum nl80211_iftype iftype, u8 *bssid, bool qos);
+
+/**
+ * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
+ *
+ * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
+ * 802.3 frames. The @list will be empty if the decode fails. The
+ * @skb is consumed after the function returns.
+ *
+ * @skb: The input IEEE 802.11n A-MSDU frame.
+ * @list: The output list of 802.3 frames. It must be allocated and
+ * initialized by by the caller.
+ * @addr: The device MAC address.
+ * @iftype: The device interface type.
+ * @extra_headroom: The hardware extra headroom for SKBs in the @list.
+ * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
+ */
+void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
+ const u8 *addr, enum nl80211_iftype iftype,
+ const unsigned int extra_headroom,
+ bool has_80211_header);
+
+/**
+ * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
+ * @skb: the data frame
+ */
+unsigned int cfg80211_classify8021d(struct sk_buff *skb);
+
+/**
+ * cfg80211_find_ie - find information element in data
+ *
+ * @eid: element ID
+ * @ies: data consisting of IEs
+ * @len: length of data
+ *
+ * This function will return %NULL if the element ID could
+ * not be found or if the element is invalid (claims to be
+ * longer than the given data), or a pointer to the first byte
+ * of the requested element, that is the byte containing the
+ * element ID. There are no checks on the element length
+ * other than having to fit into the given data.
+ */
+const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
+
+/**
+ * cfg80211_find_vendor_ie - find vendor specific information element in data
+ *
+ * @oui: vendor OUI
+ * @oui_type: vendor-specific OUI type
+ * @ies: data consisting of IEs
+ * @len: length of data
+ *
+ * This function will return %NULL if the vendor specific element ID
+ * could not be found or if the element is invalid (claims to be
+ * longer than the given data), or a pointer to the first byte
+ * of the requested element, that is the byte containing the
+ * element ID. There are no checks on the element length
+ * other than having to fit into the given data.
+ */
+const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
+ const u8 *ies, int len);
+
+/**
+ * DOC: Regulatory enforcement infrastructure
+ *
+ * TODO
+ */
+
+/**
+ * regulatory_hint - driver hint to the wireless core a regulatory domain
+ * @wiphy: the wireless device giving the hint (used only for reporting
+ * conflicts)
+ * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
+ * should be in. If @rd is set this should be NULL. Note that if you
+ * set this to NULL you should still set rd->alpha2 to some accepted
+ * alpha2.
+ *
+ * Wireless drivers can use this function to hint to the wireless core
+ * what it believes should be the current regulatory domain by
+ * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
+ * domain should be in or by providing a completely build regulatory domain.
+ * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
+ * for a regulatory domain structure for the respective country.
+ *
+ * The wiphy must have been registered to cfg80211 prior to this call.
+ * For cfg80211 drivers this means you must first use wiphy_register(),
+ * for mac80211 drivers you must first use ieee80211_register_hw().
+ *
+ * Drivers should check the return value, its possible you can get
+ * an -ENOMEM.
+ */
+extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
+
+/**
+ * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
+ * @wiphy: the wireless device we want to process the regulatory domain on
+ * @regd: the custom regulatory domain to use for this wiphy
+ *
+ * Drivers can sometimes have custom regulatory domains which do not apply
+ * to a specific country. Drivers can use this to apply such custom regulatory
+ * domains. This routine must be called prior to wiphy registration. The
+ * custom regulatory domain will be trusted completely and as such previous
+ * default channel settings will be disregarded. If no rule is found for a
+ * channel on the regulatory domain the channel will be disabled.
+ */
+extern void wiphy_apply_custom_regulatory(
+ struct wiphy *wiphy,
+ const struct ieee80211_regdomain *regd);
+
+/**
+ * freq_reg_info - get regulatory information for the given frequency
+ * @wiphy: the wiphy for which we want to process this rule for
+ * @center_freq: Frequency in KHz for which we want regulatory information for
+ * @desired_bw_khz: the desired max bandwidth you want to use per
+ * channel. Note that this is still 20 MHz if you want to use HT40
+ * as HT40 makes use of two channels for its 40 MHz width bandwidth.
+ * If set to 0 we'll assume you want the standard 20 MHz.
+ * @reg_rule: the regulatory rule which we have for this frequency
+ *
+ * Use this function to get the regulatory rule for a specific frequency on
+ * a given wireless device. If the device has a specific regulatory domain
+ * it wants to follow we respect that unless a country IE has been received
+ * and processed already.
+ *
+ * Returns 0 if it was able to find a valid regulatory rule which does
+ * apply to the given center_freq otherwise it returns non-zero. It will
+ * also return -ERANGE if we determine the given center_freq does not even have
+ * a regulatory rule for a frequency range in the center_freq's band. See
+ * freq_in_rule_band() for our current definition of a band -- this is purely
+ * subjective and right now its 802.11 specific.
+ */
+extern int freq_reg_info(struct wiphy *wiphy,
+ u32 center_freq,
+ u32 desired_bw_khz,
+ const struct ieee80211_reg_rule **reg_rule);
+
+/*
+ * callbacks for asynchronous cfg80211 methods, notification
+ * functions and BSS handling helpers
+ */
+
+/**
+ * cfg80211_scan_done - notify that scan finished
+ *
+ * @request: the corresponding scan request
+ * @aborted: set to true if the scan was aborted for any reason,
+ * userspace will be notified of that
+ */
+void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
+
+/**
+ * cfg80211_sched_scan_results - notify that new scan results are available
+ *
+ * @wiphy: the wiphy which got scheduled scan results
+ */
+void cfg80211_sched_scan_results(struct wiphy *wiphy);
+
+/**
+ * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
+ *
+ * @wiphy: the wiphy on which the scheduled scan stopped
+ *
+ * The driver can call this function to inform cfg80211 that the
+ * scheduled scan had to be stopped, for whatever reason. The driver
+ * is then called back via the sched_scan_stop operation when done.
+ */
+void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
+
+/**
+ * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
+ *
+ * @wiphy: the wiphy reporting the BSS
+ * @channel: The channel the frame was received on
+ * @mgmt: the management frame (probe response or beacon)
+ * @len: length of the management frame
+ * @signal: the signal strength, type depends on the wiphy's signal_type
+ * @gfp: context flags
+ *
+ * This informs cfg80211 that BSS information was found and
+ * the BSS should be updated/added.
+ *
+ * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
+ */
+struct cfg80211_bss * __must_check
+cfg80211_inform_bss_frame(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ s32 signal, gfp_t gfp);
+
+/**
+ * cfg80211_inform_bss - inform cfg80211 of a new BSS
+ *
+ * @wiphy: the wiphy reporting the BSS
+ * @channel: The channel the frame was received on
+ * @bssid: the BSSID of the BSS
+ * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
+ * @capability: the capability field sent by the peer
+ * @beacon_interval: the beacon interval announced by the peer
+ * @ie: additional IEs sent by the peer
+ * @ielen: length of the additional IEs
+ * @signal: the signal strength, type depends on the wiphy's signal_type
+ * @gfp: context flags
+ *
+ * This informs cfg80211 that BSS information was found and
+ * the BSS should be updated/added.
+ *
+ * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
+ */
+struct cfg80211_bss * __must_check
+cfg80211_inform_bss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *bssid, u64 tsf, u16 capability,
+ u16 beacon_interval, const u8 *ie, size_t ielen,
+ s32 signal, gfp_t gfp);
+
+struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
+ const u8 *ssid, size_t ssid_len,
+ u16 capa_mask, u16 capa_val);
+static inline struct cfg80211_bss *
+cfg80211_get_ibss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *ssid, size_t ssid_len)
+{
+ return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
+ WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
+}
+
+struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *meshid, size_t meshidlen,
+ const u8 *meshcfg);
+/**
+ * cfg80211_ref_bss - reference BSS struct
+ * @bss: the BSS struct to reference
+ *
+ * Increments the refcount of the given BSS struct.
+ */
+void cfg80211_ref_bss(struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_put_bss - unref BSS struct
+ * @bss: the BSS struct
+ *
+ * Decrements the refcount of the given BSS struct.
+ */
+void cfg80211_put_bss(struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_unlink_bss - unlink BSS from internal data structures
+ * @wiphy: the wiphy
+ * @bss: the bss to remove
+ *
+ * This function removes the given BSS from the internal data structures
+ * thereby making it no longer show up in scan results etc. Use this
+ * function when you detect a BSS is gone. Normally BSSes will also time
+ * out, so it is not necessary to use this function at all.
+ */
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_send_rx_auth - notification of processed authentication
+ * @dev: network device
+ * @buf: authentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever an authentication has been processed in
+ * station mode. The driver is required to call either this function or
+ * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
+ * call. This function may sleep.
+ */
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_auth_timeout - notification of timed out authentication
+ * @dev: network device
+ * @addr: The MAC address of the device with which the authentication timed out
+ *
+ * This function may sleep.
+ */
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
+
+/**
+ * cfg80211_send_rx_assoc - notification of processed association
+ * @dev: network device
+ * @bss: the BSS struct association was requested for, the struct reference
+ * is owned by cfg80211 after this call
+ * @buf: (re)association response frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a (re)association response has been
+ * processed in station mode. The driver is required to call either this
+ * function or cfg80211_send_assoc_timeout() to indicate the result of
+ * cfg80211_ops::assoc() call. This function may sleep.
+ */
+void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
+ const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_assoc_timeout - notification of timed out association
+ * @dev: network device
+ * @addr: The MAC address of the device with which the association timed out
+ *
+ * This function may sleep.
+ */
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
+
+/**
+ * cfg80211_send_deauth - notification of processed deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever deauthentication has been processed in
+ * station mode. This includes both received deauthentication frames and
+ * locally generated ones. This function may sleep.
+ */
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * __cfg80211_send_deauth - notification of processed deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
+ */
+void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_disassoc - notification of processed disassociation
+ * @dev: network device
+ * @buf: disassociation response frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever disassociation has been processed in
+ * station mode. This includes both received disassociation frames and locally
+ * generated ones. This function may sleep.
+ */
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * __cfg80211_send_disassoc - notification of processed disassociation
+ * @dev: network device
+ * @buf: disassociation response frame (header + body)
+ * @len: length of the frame data
+ *
+ * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
+ */
+void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
+ size_t len);
+
+/**
+ * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a received Deauthentication frame has been
+ * dropped in station mode because of MFP being used but the Deauthentication
+ * frame was not protected. This function may sleep.
+ */
+void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
+ size_t len);
+
+/**
+ * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
+ * @dev: network device
+ * @buf: disassociation frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a received Disassociation frame has been
+ * dropped in station mode because of MFP being used but the Disassociation
+ * frame was not protected. This function may sleep.
+ */
+void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
+ size_t len);
+
+/**
+ * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
+ * @dev: network device
+ * @addr: The source MAC address of the frame
+ * @key_type: The key type that the received frame used
+ * @key_id: Key identifier (0..3). Can be -1 if missing.
+ * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
+ * @gfp: allocation flags
+ *
+ * This function is called whenever the local MAC detects a MIC failure in a
+ * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
+ * primitive.
+ */
+void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
+ enum nl80211_key_type key_type, int key_id,
+ const u8 *tsc, gfp_t gfp);
+
+/**
+ * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
+ *
+ * @dev: network device
+ * @bssid: the BSSID of the IBSS joined
+ * @gfp: allocation flags
+ *
+ * This function notifies cfg80211 that the device joined an IBSS or
+ * switched to a different BSSID. Before this function can be called,
+ * either a beacon has to have been received from the IBSS, or one of
+ * the cfg80211_inform_bss{,_frame} functions must have been called
+ * with the locally generated beacon -- this guarantees that there is
+ * always a scan result for this IBSS. cfg80211 will handle the rest.
+ */
+void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
+
+/**
+ * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
+ *
+ * @dev: network device
+ * @macaddr: the MAC address of the new candidate
+ * @ie: information elements advertised by the peer candidate
+ * @ie_len: lenght of the information elements buffer
+ * @gfp: allocation flags
+ *
+ * This function notifies cfg80211 that the mesh peer candidate has been
+ * detected, most likely via a beacon or, less likely, via a probe response.
+ * cfg80211 then sends a notification to userspace.
+ */
+void cfg80211_notify_new_peer_candidate(struct net_device *dev,
+ const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
+
+/**
+ * DOC: RFkill integration
+ *
+ * RFkill integration in cfg80211 is almost invisible to drivers,
+ * as cfg80211 automatically registers an rfkill instance for each
+ * wireless device it knows about. Soft kill is also translated
+ * into disconnecting and turning all interfaces off, drivers are
+ * expected to turn off the device when all interfaces are down.
+ *
+ * However, devices may have a hard RFkill line, in which case they
+ * also need to interact with the rfkill subsystem, via cfg80211.
+ * They can do this with a few helper functions documented here.
+ */
+
+/**
+ * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
+ * @wiphy: the wiphy
+ * @blocked: block status
+ */
+void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
+
+/**
+ * wiphy_rfkill_start_polling - start polling rfkill
+ * @wiphy: the wiphy
+ */
+void wiphy_rfkill_start_polling(struct wiphy *wiphy);
+
+/**
+ * wiphy_rfkill_stop_polling - stop polling rfkill
+ * @wiphy: the wiphy
+ */
+void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
+
+#ifdef CONFIG_NL80211_TESTMODE
+/**
+ * DOC: Test mode
+ *
+ * Test mode is a set of utility functions to allow drivers to
+ * interact with driver-specific tools to aid, for instance,
+ * factory programming.
+ *
+ * This chapter describes how drivers interact with it, for more
+ * information see the nl80211 book's chapter on it.
+ */
+
+/**
+ * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
+ * @wiphy: the wiphy
+ * @approxlen: an upper bound of the length of the data that will
+ * be put into the skb
+ *
+ * This function allocates and pre-fills an skb for a reply to
+ * the testmode command. Since it is intended for a reply, calling
+ * it outside of the @testmode_cmd operation is invalid.
+ *
+ * The returned skb (or %NULL if any errors happen) is pre-filled
+ * with the wiphy index and set up in a way that any data that is
+ * put into the skb (with skb_put(), nla_put() or similar) will end
+ * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
+ * needs to be done with the skb is adding data for the corresponding
+ * userspace tool which can then read that data out of the testdata
+ * attribute. You must not modify the skb in any other way.
+ *
+ * When done, call cfg80211_testmode_reply() with the skb and return
+ * its error code as the result of the @testmode_cmd operation.
+ */
+struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
+ int approxlen);
+
+/**
+ * cfg80211_testmode_reply - send the reply skb
+ * @skb: The skb, must have been allocated with
+ * cfg80211_testmode_alloc_reply_skb()
+ *
+ * Returns an error code or 0 on success, since calling this
+ * function will usually be the last thing before returning
+ * from the @testmode_cmd you should return the error code.
+ * Note that this function consumes the skb regardless of the
+ * return value.
+ */
+int cfg80211_testmode_reply(struct sk_buff *skb);
+
+/**
+ * cfg80211_testmode_alloc_event_skb - allocate testmode event
+ * @wiphy: the wiphy
+ * @approxlen: an upper bound of the length of the data that will
+ * be put into the skb
+ * @gfp: allocation flags
+ *
+ * This function allocates and pre-fills an skb for an event on the
+ * testmode multicast group.
+ *
+ * The returned skb (or %NULL if any errors happen) is set up in the
+ * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
+ * for an event. As there, you should simply add data to it that will
+ * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
+ * not modify the skb in any other way.
+ *
+ * When done filling the skb, call cfg80211_testmode_event() with the
+ * skb to send the event.
+ */
+struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
+ int approxlen, gfp_t gfp);
+
+/**
+ * cfg80211_testmode_event - send the event
+ * @skb: The skb, must have been allocated with
+ * cfg80211_testmode_alloc_event_skb()
+ * @gfp: allocation flags
+ *
+ * This function sends the given @skb, which must have been allocated
+ * by cfg80211_testmode_alloc_event_skb(), as an event. It always
+ * consumes it.
+ */
+void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
+
+#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
+#define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
+#else
+#define CFG80211_TESTMODE_CMD(cmd)
+#define CFG80211_TESTMODE_DUMP(cmd)
+#endif
+
+/**
+ * cfg80211_connect_result - notify cfg80211 of connection result
+ *
+ * @dev: network device
+ * @bssid: the BSSID of the AP
+ * @req_ie: association request IEs (maybe be %NULL)
+ * @req_ie_len: association request IEs length
+ * @resp_ie: association response IEs (may be %NULL)
+ * @resp_ie_len: assoc response IEs length
+ * @status: status code, 0 for successful connection, use
+ * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
+ * the real status code for failures.
+ * @gfp: allocation flags
+ *
+ * It should be called by the underlying driver whenever connect() has
+ * succeeded.
+ */
+void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
+ const u8 *req_ie, size_t req_ie_len,
+ const u8 *resp_ie, size_t resp_ie_len,
+ u16 status, gfp_t gfp);
+
+/**
+ * cfg80211_roamed - notify cfg80211 of roaming
+ *
+ * @dev: network device
+ * @channel: the channel of the new AP
+ * @bssid: the BSSID of the new AP
+ * @req_ie: association request IEs (maybe be %NULL)
+ * @req_ie_len: association request IEs length
+ * @resp_ie: association response IEs (may be %NULL)
+ * @resp_ie_len: assoc response IEs length
+ * @gfp: allocation flags
+ *
+ * It should be called by the underlying driver whenever it roamed
+ * from one AP to another while connected.
+ */
+void cfg80211_roamed(struct net_device *dev,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
+ const u8 *req_ie, size_t req_ie_len,
+ const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
+
+/**
+ * cfg80211_roamed_bss - notify cfg80211 of roaming
+ *
+ * @dev: network device
+ * @bss: entry of bss to which STA got roamed
+ * @req_ie: association request IEs (maybe be %NULL)
+ * @req_ie_len: association request IEs length
+ * @resp_ie: association response IEs (may be %NULL)
+ * @resp_ie_len: assoc response IEs length
+ * @gfp: allocation flags
+ *
+ * This is just a wrapper to notify cfg80211 of roaming event with driver
+ * passing bss to avoid a race in timeout of the bss entry. It should be
+ * called by the underlying driver whenever it roamed from one AP to another
+ * while connected. Drivers which have roaming implemented in firmware
+ * may use this function to avoid a race in bss entry timeout where the bss
+ * entry of the new AP is seen in the driver, but gets timed out by the time
+ * it is accessed in __cfg80211_roamed() due to delay in scheduling
+ * rdev->event_work. In case of any failures, the reference is released
+ * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
+ * it will be released while diconneting from the current bss.
+ */
+void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
+ const u8 *req_ie, size_t req_ie_len,
+ const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
+
+/**
+ * cfg80211_disconnected - notify cfg80211 that connection was dropped
+ *
+ * @dev: network device
+ * @ie: information elements of the deauth/disassoc frame (may be %NULL)
+ * @ie_len: length of IEs
+ * @reason: reason code for the disconnection, set it to 0 if unknown
+ * @gfp: allocation flags
+ *
+ * After it calls this function, the driver should enter an idle state
+ * and not try to connect to any AP any more.
+ */
+void cfg80211_disconnected(struct net_device *dev, u16 reason,
+ u8 *ie, size_t ie_len, gfp_t gfp);
+
+/**
+ * cfg80211_ready_on_channel - notification of remain_on_channel start
+ * @dev: network device
+ * @cookie: the request cookie
+ * @chan: The current channel (from remain_on_channel request)
+ * @channel_type: Channel type
+ * @duration: Duration in milliseconds that the driver intents to remain on the
+ * channel
+ * @gfp: allocation flags
+ */
+void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int duration, gfp_t gfp);
+
+/**
+ * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
+ * @dev: network device
+ * @cookie: the request cookie
+ * @chan: The current channel (from remain_on_channel request)
+ * @channel_type: Channel type
+ * @gfp: allocation flags
+ */
+void cfg80211_remain_on_channel_expired(struct net_device *dev,
+ u64 cookie,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ gfp_t gfp);
+
+
+/**
+ * cfg80211_new_sta - notify userspace about station
+ *
+ * @dev: the netdev
+ * @mac_addr: the station's address
+ * @sinfo: the station information
+ * @gfp: allocation flags
+ */
+void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
+ struct station_info *sinfo, gfp_t gfp);
+
+/**
+ * cfg80211_del_sta - notify userspace about deletion of a station
+ *
+ * @dev: the netdev
+ * @mac_addr: the station's address
+ * @gfp: allocation flags
+ */
+void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
+
+/**
+ * cfg80211_rx_mgmt - notification of received, unprocessed management frame
+ * @dev: network device
+ * @freq: Frequency on which the frame was received in MHz
+ * @sig_dbm: signal strength in mBm, or 0 if unknown
+ * @buf: Management frame (header + body)
+ * @len: length of the frame data
+ * @gfp: context flags
+ *
+ * Returns %true if a user space application has registered for this frame.
+ * For action frames, that makes it responsible for rejecting unrecognized
+ * action frames; %false otherwise, in which case for action frames the
+ * driver is responsible for rejecting the frame.
+ *
+ * This function is called whenever an Action frame is received for a station
+ * mode interface, but is not processed in kernel.
+ */
+bool cfg80211_rx_mgmt(struct net_device *dev, int freq, int sig_dbm,
+ const u8 *buf, size_t len, gfp_t gfp);
+
+/**
+ * cfg80211_mgmt_tx_status - notification of TX status for management frame
+ * @dev: network device
+ * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
+ * @buf: Management frame (header + body)
+ * @len: length of the frame data
+ * @ack: Whether frame was acknowledged
+ * @gfp: context flags
+ *
+ * This function is called whenever a management frame was requested to be
+ * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
+ * transmission attempt.
+ */
+void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie,
+ const u8 *buf, size_t len, bool ack, gfp_t gfp);
+
+
+/**
+ * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
+ * @dev: network device
+ * @rssi_event: the triggered RSSI event
+ * @gfp: context flags
+ *
+ * This function is called when a configured connection quality monitoring
+ * rssi threshold reached event occurs.
+ */
+void cfg80211_cqm_rssi_notify(struct net_device *dev,
+ enum nl80211_cqm_rssi_threshold_event rssi_event,
+ gfp_t gfp);
+
+/**
+ * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
+ * @dev: network device
+ * @peer: peer's MAC address
+ * @num_packets: how many packets were lost -- should be a fixed threshold
+ * but probably no less than maybe 50, or maybe a throughput dependent
+ * threshold (to account for temporary interference)
+ * @gfp: context flags
+ */
+void cfg80211_cqm_pktloss_notify(struct net_device *dev,
+ const u8 *peer, u32 num_packets, gfp_t gfp);
+
+/**
+ * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
+ * @dev: network device
+ * @bssid: BSSID of AP (to avoid races)
+ * @replay_ctr: new replay counter
+ * @gfp: allocation flags
+ */
+void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp);
+
+/**
+ * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
+ * @dev: network device
+ * @index: candidate index (the smaller the index, the higher the priority)
+ * @bssid: BSSID of AP
+ * @preauth: Whether AP advertises support for RSN pre-authentication
+ * @gfp: allocation flags
+ */
+void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
+ const u8 *bssid, bool preauth, gfp_t gfp);
+
+/**
+ * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
+ * @dev: The device the frame matched to
+ * @addr: the transmitter address
+ * @gfp: context flags
+ *
+ * This function is used in AP mode (only!) to inform userspace that
+ * a spurious class 3 frame was received, to be able to deauth the
+ * sender.
+ * Returns %true if the frame was passed to userspace (or this failed
+ * for a reason other than not having a subscription.)
+ */
+bool cfg80211_rx_spurious_frame(struct net_device *dev,
+ const u8 *addr, gfp_t gfp);
+
+/**
+ * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
+ * @dev: The device the frame matched to
+ * @addr: the transmitter address
+ * @gfp: context flags
+ *
+ * This function is used in AP mode (only!) to inform userspace that
+ * an associated station sent a 4addr frame but that wasn't expected.
+ * It is allowed and desirable to send this event only once for each
+ * station to avoid event flooding.
+ * Returns %true if the frame was passed to userspace (or this failed
+ * for a reason other than not having a subscription.)
+ */
+bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
+ const u8 *addr, gfp_t gfp);
+
+/**
+ * cfg80211_probe_status - notify userspace about probe status
+ * @dev: the device the probe was sent on
+ * @addr: the address of the peer
+ * @cookie: the cookie filled in @probe_client previously
+ * @acked: indicates whether probe was acked or not
+ * @gfp: allocation flags
+ */
+void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
+ u64 cookie, bool acked, gfp_t gfp);
+
+/**
+ * cfg80211_report_obss_beacon - report beacon from other APs
+ * @wiphy: The wiphy that received the beacon
+ * @frame: the frame
+ * @len: length of the frame
+ * @freq: frequency the frame was received on
+ * @sig_dbm: signal strength in mBm, or 0 if unknown
+ * @gfp: allocation flags
+ *
+ * Use this function to report to userspace when a beacon was
+ * received. It is not useful to call this when there is no
+ * netdev that is in AP/GO mode.
+ */
+void cfg80211_report_obss_beacon(struct wiphy *wiphy,
+ const u8 *frame, size_t len,
+ int freq, int sig_dbm, gfp_t gfp);
+
+/*
+ * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
+ * @wiphy: the wiphy
+ * @chan: main channel
+ * @channel_type: HT mode
+ */
+int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type);
+
+/*
+ * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
+ * @rate: given rate_info to calculate bitrate from
+ *
+ * return 0 if MCS index >= 32
+ */
+u16 cfg80211_calculate_bitrate(struct rate_info *rate);
+
+/* Logging, debugging and troubleshooting/diagnostic helpers. */
+
+/* wiphy_printk helpers, similar to dev_printk */
+
+#define wiphy_printk(level, wiphy, format, args...) \
+ dev_printk(level, &(wiphy)->dev, format, ##args)
+#define wiphy_emerg(wiphy, format, args...) \
+ dev_emerg(&(wiphy)->dev, format, ##args)
+#define wiphy_alert(wiphy, format, args...) \
+ dev_alert(&(wiphy)->dev, format, ##args)
+#define wiphy_crit(wiphy, format, args...) \
+ dev_crit(&(wiphy)->dev, format, ##args)
+#define wiphy_err(wiphy, format, args...) \
+ dev_err(&(wiphy)->dev, format, ##args)
+#define wiphy_warn(wiphy, format, args...) \
+ dev_warn(&(wiphy)->dev, format, ##args)
+#define wiphy_notice(wiphy, format, args...) \
+ dev_notice(&(wiphy)->dev, format, ##args)
+#define wiphy_info(wiphy, format, args...) \
+ dev_info(&(wiphy)->dev, format, ##args)
+
+#define wiphy_debug(wiphy, format, args...) \
+ wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
+
+#define wiphy_dbg(wiphy, format, args...) \
+ dev_dbg(&(wiphy)->dev, format, ##args)
+
+#if defined(VERBOSE_DEBUG)
+#define wiphy_vdbg wiphy_dbg
+#else
+#define wiphy_vdbg(wiphy, format, args...) \
+({ \
+ if (0) \
+ wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
+ 0; \
+})
+#endif
+
+/*
+ * wiphy_WARN() acts like wiphy_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define wiphy_WARN(wiphy, format, args...) \
+ WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
+
+#endif /* __NET_CFG80211_H */