+/*
+ * 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(). After its gets its own regulatory
+ * domain it will only allow further regulatory domain settings to
+ * further enhance compliance. For example if channel 13 and 14 are
+ * disabled by this regulatory domain no user regulatory domain can
+ * enable these channels at a later time. This can be used for devices
+ * which do not have calibration information gauranteed for frequencies
+ * or settings outside of its regulatory domain.
+ * @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_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
+ */
+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),
+};
+
+struct mac_address {
+ u8 addr[ETH_ALEN];
+};
+
+/**
+ * struct wiphy - wireless hardware description
+ * @idx: the wiphy index assigned to this item
+ * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
+ * @reg_notifier: the driver's regulatory notification callback
+ * @regd: the driver's regulatory domain, if one was requested via
+ * the regulatory_hint() API. This can be used by the driver
+ * on the reg_notifier() if it chooses to ignore future
+ * regulatory domain changes caused by other drivers.
+ * @signal_type: signal type reported in &struct cfg80211_bss.
+ * @cipher_suites: supported cipher suites
+ * @n_cipher_suites: number of supported cipher suites
+ * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
+ * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
+ * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
+ * -1 = fragmentation disabled, only odd values >= 256 used
+ * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
+ * @net: the network namespace this wiphy currently lives in
+ * @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.
+ */
+struct wiphy {
+ /* assign these fields before you register the wiphy */
+
+ /* permanent MAC address(es) */
+ u8 perm_addr[ETH_ALEN];
+ u8 addr_mask[ETH_ALEN];
+
+ u16 n_addresses;
+ struct mac_address *addresses;
+
+ /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
+ u16 interface_modes;
+
+ u32 flags;
+
+ enum cfg80211_signal_type signal_type;
+
+ int bss_priv_size;
+ u8 max_scan_ssids;
+ u16 max_scan_ie_len;
+
+ int n_cipher_suites;
+ const u32 *cipher_suites;
+
+ u8 retry_short;
+ u8 retry_long;
+ u32 frag_threshold;
+ u32 rts_threshold;
+ u8 coverage_class;
+
+ char fw_version[ETHTOOL_BUSINFO_LEN];
+ u32 hw_version;
+
+ u8 max_num_pmkids;
+
+ /* 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;
+
+ /* dir in debugfs: ieee80211/<wiphyname> */
+ struct dentry *debugfsdir;
+
+#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)));
+};
+
+#ifdef CONFIG_NET_NS
+static inline struct net *wiphy_net(struct wiphy *wiphy)
+{
+ return wiphy->_net;
+}
+
+static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
+{
+ wiphy->_net = net;
+}
+#else
+static inline struct net *wiphy_net(struct wiphy *wiphy)
+{
+ return &init_net;
+}
+
+static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
+{
+}
+#endif
+
+/**
+ * wiphy_priv - return priv from wiphy
+ *
+ * @wiphy: the wiphy whose priv pointer to return
+ */
+static inline void *wiphy_priv(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return &wiphy->priv;
+}
+
+/**
+ * priv_to_wiphy - return the wiphy containing the priv
+ *
+ * @priv: a pointer previously returned by wiphy_priv
+ */
+static inline struct wiphy *priv_to_wiphy(void *priv)
+{
+ BUG_ON(!priv);
+ return container_of(priv, struct wiphy, priv);
+}
+
+/**
+ * set_wiphy_dev - set device pointer for wiphy
+ *
+ * @wiphy: The wiphy whose device to bind
+ * @dev: The device to parent it to
+ */
+static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
+{
+ wiphy->dev.parent = dev;
+}
+
+/**
+ * wiphy_dev - get wiphy dev pointer
+ *
+ * @wiphy: The wiphy whose device struct to look up
+ */
+static inline struct device *wiphy_dev(struct wiphy *wiphy)
+{
+ return wiphy->dev.parent;
+}
+
+/**
+ * wiphy_name - get wiphy name
+ *
+ * @wiphy: The wiphy whose name to return
+ */
+static inline const char *wiphy_name(struct wiphy *wiphy)
+{
+ return dev_name(&wiphy->dev);
+}
+
+/**
+ * wiphy_new - create a new wiphy for use with cfg80211
+ *
+ * @ops: The configuration operations for this device
+ * @sizeof_priv: The size of the private area to allocate
+ *
+ * Create a new wiphy and associate the given operations with it.
+ * @sizeof_priv bytes are allocated for private use.
+ *
+ * The returned pointer must be assigned to each netdev's
+ * ieee80211_ptr for proper operation.
+ */
+struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
+
+/**
+ * wiphy_register - register a wiphy with cfg80211
+ *
+ * @wiphy: The wiphy to register.
+ *
+ * Returns a non-negative wiphy index or a negative error code.
+ */
+extern int wiphy_register(struct wiphy *wiphy);
+
+/**
+ * wiphy_unregister - deregister a wiphy from cfg80211
+ *
+ * @wiphy: The wiphy to unregister.
+ *
+ * After this call, no more requests can be made with this priv
+ * pointer, but the call may sleep to wait for an outstanding
+ * request that is being handled.
+ */
+extern void wiphy_unregister(struct wiphy *wiphy);
+
+/**
+ * wiphy_free - free wiphy
+ *
+ * @wiphy: The wiphy to free
+ */
+extern void wiphy_free(struct wiphy *wiphy);
+
+/* internal structs */
+struct cfg80211_conn;
+struct cfg80211_internal_bss;
+struct cfg80211_cached_keys;
+
+#define MAX_AUTH_BSSES 4
+
+/**
+ * struct wireless_dev - wireless per-netdev state
+ *
+ * This structure must be allocated by the driver/stack
+ * that uses the ieee80211_ptr field in struct net_device
+ * (this is intentional so it can be allocated along with
+ * the netdev.)
+ *
+ * @wiphy: pointer to hardware description
+ * @iftype: interface type
+ * @list: (private) Used to collect the interfaces
+ * @netdev: (private) Used to reference back to the netdev
+ * @current_bss: (private) Used by the internal configuration code
+ * @bssid: (private) Used by the internal configuration code
+ * @ssid: (private) Used by the internal configuration code
+ * @ssid_len: (private) Used by the internal configuration code
+ * @wext: (private) Used by the internal wireless extensions compat code
+ * @wext_bssid: (private) Used by the internal wireless extensions compat code
+ * @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
+ */
+struct wireless_dev {
+ struct wiphy *wiphy;
+ enum nl80211_iftype iftype;
+
+ /* the remainder of this struct should be private to cfg80211 */
+ struct list_head list;
+ struct net_device *netdev;
+
+ struct mutex mtx;
+
+ struct work_struct cleanup_work;
+
+ bool use_4addr;
+
+ /* currently used for IBSS and SME - might be rearranged later */
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len;
+ enum {
+ CFG80211_SME_IDLE,
+ CFG80211_SME_CONNECTING,
+ CFG80211_SME_CONNECTED,
+ } sme_state;
+ struct cfg80211_conn *conn;
+ struct cfg80211_cached_keys *connect_keys;
+
+ struct list_head event_list;
+ spinlock_t event_lock;
+
+ struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
+ struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
+ struct cfg80211_internal_bss *current_bss; /* associated / joined */
+
+#ifdef CONFIG_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 ps, prev_bssid_valid;
+ int ps_timeout;
+ } wext;
+#endif
+};
+
+/**
+ * wdev_priv - return wiphy priv from wireless_dev
+ *
+ * @wdev: The wireless device whose wiphy's priv pointer to return
+ */
+static inline void *wdev_priv(struct wireless_dev *wdev)
+{
+ BUG_ON(!wdev);
+ return wiphy_priv(wdev->wiphy);
+}
+
+/*
+ * Utility functions
+ */
+
+/**
+ * ieee80211_channel_to_frequency - convert channel number to frequency
+ */
+extern int ieee80211_channel_to_frequency(int chan);
+
+/**
+ * ieee80211_frequency_to_channel - convert frequency to channel number
+ */
+extern int ieee80211_frequency_to_channel(int freq);
+
+/*
+ * Name indirection necessary because the ieee80211 code also has
+ * a function named "ieee80211_get_channel", so if you include
+ * cfg80211's header file you get cfg80211's version, if you try
+ * to include both header files you'll (rightfully!) get a symbol
+ * clash.
+ */
+extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
+ int freq);
+/**
+ * ieee80211_get_channel - get channel struct from wiphy for specified frequency
+ */
+static inline struct ieee80211_channel *
+ieee80211_get_channel(struct wiphy *wiphy, int freq)
+{
+ return __ieee80211_get_channel(wiphy, freq);
+}
+
+/**
+ * ieee80211_get_response_rate - get basic rate for a given rate
+ *
+ * @sband: the band to look for rates in
+ * @basic_rates: bitmap of basic rates
+ * @bitrate: the bitrate for which to find the basic rate
+ *
+ * This function returns the basic rate corresponding to a given
+ * bitrate, that is the next lower bitrate contained in the basic
+ * rate map, which is, for this function, given as a bitmap of
+ * indices of rates in the band's bitrate table.
+ */
+struct ieee80211_rate *
+ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
+ u32 basic_rates, int bitrate);
+
+/*
+ * Radiotap parsing functions -- for controlled injection support
+ *
+ * Implemented in net/wireless/radiotap.c
+ * Documentation in Documentation/networking/radiotap-headers.txt
+ */
+
+struct 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
+ *
+ * @overrides: override standard radiotap fields
+ * @n_overrides: number of overrides
+ *
+ * @_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;
+ uint32_t *_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 ieee80211_hdrlen(__le16 fc);
+
+/**
+ * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
+ * @skb: the 802.11 data frame
+ * @addr: the device MAC address
+ * @iftype: the virtual interface type
+ */
+int ieee80211_data_to_8023(struct sk_buff *skb, 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.
+ */
+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);
+
+/**
+ * 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);
+
+/*
+ * Regulatory helper functions for wiphys
+ */
+
+/**
+ * regulatory_hint - driver hint to the wireless core a regulatory domain
+ * @wiphy: the wireless device giving the hint (used only for reporting
+ * conflicts)
+ * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
+ * should be in. If @rd is set this should be NULL. Note that if you
+ * set this to NULL you should still set rd->alpha2 to some accepted
+ * alpha2.
+ *
+ * Wireless drivers can use this function to hint to the wireless core
+ * what it believes should be the current regulatory domain by
+ * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
+ * domain should be in or by providing a completely build regulatory domain.
+ * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
+ * for a regulatory domain structure for the respective country.
+ *
+ * The wiphy must have been registered to cfg80211 prior to this call.
+ * For cfg80211 drivers this means you must first use wiphy_register(),
+ * for mac80211 drivers you must first use ieee80211_register_hw().
+ *
+ * Drivers should check the return value, its possible you can get
+ * an -ENOMEM.
+ */
+extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
+
+/**
+ * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
+ * @wiphy: the wireless device we want to process the regulatory domain on
+ * @regd: the custom regulatory domain to use for this wiphy
+ *
+ * Drivers can sometimes have custom regulatory domains which do not apply
+ * to a specific country. Drivers can use this to apply such custom regulatory
+ * domains. This routine must be called prior to wiphy registration. The
+ * custom regulatory domain will be trusted completely and as such previous
+ * default channel settings will be disregarded. If no rule is found for a
+ * channel on the regulatory domain the channel will be disabled.
+ */
+extern void wiphy_apply_custom_regulatory(
+ struct wiphy *wiphy,
+ const struct ieee80211_regdomain *regd);
+
+/**
+ * freq_reg_info - get regulatory information for the given frequency
+ * @wiphy: the wiphy for which we want to process this rule for
+ * @center_freq: Frequency in KHz for which we want regulatory information for
+ * @desired_bw_khz: the desired max bandwidth you want to use per
+ * channel. Note that this is still 20 MHz if you want to use HT40
+ * as HT40 makes use of two channels for its 40 MHz width bandwidth.
+ * If set to 0 we'll assume you want the standard 20 MHz.
+ * @reg_rule: the regulatory rule which we have for this frequency
+ *
+ * Use this function to get the regulatory rule for a specific frequency on
+ * a given wireless device. If the device has a specific regulatory domain
+ * it wants to follow we respect that unless a country IE has been received
+ * and processed already.
+ *
+ * Returns 0 if it was able to find a valid regulatory rule which does
+ * apply to the given center_freq otherwise it returns non-zero. It will
+ * also return -ERANGE if we determine the given center_freq does not even have
+ * a regulatory rule for a frequency range in the center_freq's band. See
+ * freq_in_rule_band() for our current definition of a band -- this is purely
+ * subjective and right now its 802.11 specific.
+ */
+extern int freq_reg_info(struct wiphy *wiphy,
+ u32 center_freq,
+ u32 desired_bw_khz,
+ const struct ieee80211_reg_rule **reg_rule);
+
+/*
+ * Temporary wext handlers & helper functions
+ *
+ * In the future cfg80211 will simply assign the entire wext handler
+ * structure to netdevs it manages, but we're not there yet.
+ */
+int cfg80211_wext_giwname(struct net_device *dev,
+ struct iw_request_info *info,
+ char *name, char *extra);
+int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
+ u32 *mode, char *extra);
+int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
+ u32 *mode, char *extra);
+int cfg80211_wext_siwscan(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra);
+int cfg80211_wext_giwscan(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra);
+int cfg80211_wext_siwmlme(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra);
+int cfg80211_wext_giwrange(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra);
+int cfg80211_wext_siwgenie(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra);
+int cfg80211_wext_siwauth(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra);
+int cfg80211_wext_giwauth(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra);
+
+int cfg80211_wext_siwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra);
+int cfg80211_wext_giwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra);
+int cfg80211_wext_siwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid);
+int cfg80211_wext_giwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid);
+int cfg80211_wext_siwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra);
+int cfg80211_wext_giwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra);
+
+int cfg80211_wext_siwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra);
+int cfg80211_wext_giwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra);
+int cfg80211_wext_siwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra);
+int cfg80211_wext_giwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra);
+int cfg80211_wext_siwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra);
+int cfg80211_wext_giwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra);
+int cfg80211_wext_siwencodeext(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *extra);
+int cfg80211_wext_siwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *keybuf);
+int cfg80211_wext_giwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *keybuf);
+int cfg80211_wext_siwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *keybuf);
+int cfg80211_wext_giwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *keybuf);
+struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
+
+int cfg80211_wext_siwpower(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *wrq, char *extra);
+int cfg80211_wext_giwpower(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *wrq, char *extra);
+
+int cfg80211_wext_siwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra);
+int cfg80211_wext_giwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra);
+
+/*
+ * callbacks for asynchronous cfg80211 methods, notification
+ * functions and BSS handling helpers
+ */
+
+/**
+ * cfg80211_scan_done - notify that scan finished
+ *
+ * @request: the corresponding scan request
+ * @aborted: set to true if the scan was aborted for any reason,
+ * userspace will be notified of that
+ */
+void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
+
+/**
+ * cfg80211_inform_bss - inform cfg80211 of a new BSS
+ *
+ * @wiphy: the wiphy reporting the BSS
+ * @bss: the found BSS
+ * @signal: the signal strength, type depends on the wiphy's signal_type
+ * @gfp: context flags
+ *
+ * This informs cfg80211 that BSS information was found and
+ * the BSS should be updated/added.
+ */
+struct cfg80211_bss*
+cfg80211_inform_bss_frame(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ s32 signal, gfp_t gfp);
+
+struct cfg80211_bss*
+cfg80211_inform_bss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
+ u64 timestamp, u16 capability, u16 beacon_interval,
+ const u8 *ie, size_t ielen,
+ s32 signal, gfp_t gfp);
+
+struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *bssid,
+ const u8 *ssid, size_t ssid_len,
+ u16 capa_mask, u16 capa_val);
+static inline struct cfg80211_bss *
+cfg80211_get_ibss(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *ssid, size_t ssid_len)
+{
+ return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
+ WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
+}
+
+struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
+ struct ieee80211_channel *channel,
+ const u8 *meshid, size_t meshidlen,
+ const u8 *meshcfg);
+void cfg80211_put_bss(struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_unlink_bss - unlink BSS from internal data structures
+ * @wiphy: the wiphy
+ * @bss: the bss to remove
+ *
+ * This function removes the given BSS from the internal data structures
+ * thereby making it no longer show up in scan results etc. Use this
+ * function when you detect a BSS is gone. Normally BSSes will also time
+ * out, so it is not necessary to use this function at all.
+ */
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_send_rx_auth - notification of processed authentication
+ * @dev: network device
+ * @buf: authentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever an authentication has been processed in
+ * station mode. The driver is required to call either this function or
+ * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
+ * call. This function may sleep.
+ */
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_auth_timeout - notification of timed out authentication
+ * @dev: network device
+ * @addr: The MAC address of the device with which the authentication timed out
+ *
+ * This function may sleep.
+ */
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
+
+/**
+ * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
+ * @dev: network device
+ * @addr: The MAC address of the device with which the authentication timed out
+ *
+ * When a pending authentication had no action yet, the driver may decide
+ * to not send a deauth frame, but in that case must calls this function
+ * to tell cfg80211 about this decision. It is only valid to call this
+ * function within the deauth() callback.
+ */
+void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);
+
+/**
+ * cfg80211_send_rx_assoc - notification of processed association
+ * @dev: network device
+ * @buf: (re)association response frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a (re)association response has been
+ * processed in station mode. The driver is required to call either this
+ * function or cfg80211_send_assoc_timeout() to indicate the result of
+ * cfg80211_ops::assoc() call. This function may sleep.
+ */
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_assoc_timeout - notification of timed out association
+ * @dev: network device
+ * @addr: The MAC address of the device with which the association timed out
+ *
+ * This function may sleep.
+ */
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
+
+/**
+ * cfg80211_send_deauth - notification of processed deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * 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_michael_mic_failure - notification of Michael MIC failure (TKIP)
+ * @dev: network device
+ * @addr: The source MAC address of the frame
+ * @key_type: The key type that the received frame used
+ * @key_id: Key identifier (0..3)
+ * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
+ * @gfp: allocation flags
+ *
+ * This function is called whenever the local MAC detects a MIC failure in a
+ * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
+ * primitive.
+ */
+void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
+ enum nl80211_key_type key_type, int key_id,
+ const u8 *tsc, gfp_t gfp);
+
+/**
+ * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
+ *
+ * @dev: network device
+ * @bssid: the BSSID of the IBSS joined
+ * @gfp: allocation flags
+ *
+ * This function notifies cfg80211 that the device joined an IBSS or
+ * switched to a different BSSID. Before this function can be called,
+ * either a beacon has to have been received from the IBSS, or one of
+ * the cfg80211_inform_bss{,_frame} functions must have been called
+ * with the locally generated beacon -- this guarantees that there is
+ * always a scan result for this IBSS. cfg80211 will handle the rest.
+ */
+void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
+
+/**
+ * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
+ * @wiphy: the wiphy
+ * @blocked: block status
+ */
+void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
+
+/**
+ * wiphy_rfkill_start_polling - start polling rfkill
+ * @wiphy: the wiphy
+ */
+void wiphy_rfkill_start_polling(struct wiphy *wiphy);
+
+/**
+ * wiphy_rfkill_stop_polling - stop polling rfkill
+ * @wiphy: the wiphy
+ */
+void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
+
+#ifdef CONFIG_NL80211_TESTMODE
+/**
+ * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
+ * @wiphy: the wiphy
+ * @approxlen: an upper bound of the length of the data that will
+ * be put into the skb
+ *
+ * This function allocates and pre-fills an skb for a reply to
+ * the testmode command. Since it is intended for a reply, calling
+ * it outside of the @testmode_cmd operation is invalid.
+ *
+ * The returned skb (or %NULL if any errors happen) is pre-filled
+ * with the wiphy index and set up in a way that any data that is
+ * put into the skb (with skb_put(), nla_put() or similar) will end
+ * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
+ * needs to be done with the skb is adding data for the corresponding
+ * userspace tool which can then read that data out of the testdata
+ * attribute. You must not modify the skb in any other way.
+ *
+ * When done, call cfg80211_testmode_reply() with the skb and return
+ * its error code as the result of the @testmode_cmd operation.
+ */
+struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
+ int approxlen);
+
+/**
+ * cfg80211_testmode_reply - send the reply skb
+ * @skb: The skb, must have been allocated with
+ * cfg80211_testmode_alloc_reply_skb()
+ *
+ * Returns an error code or 0 on success, since calling this
+ * function will usually be the last thing before returning
+ * from the @testmode_cmd you should return the error code.
+ * Note that this function consumes the skb regardless of the
+ * return value.
+ */
+int cfg80211_testmode_reply(struct sk_buff *skb);
+
+/**
+ * cfg80211_testmode_alloc_event_skb - allocate testmode event
+ * @wiphy: the wiphy
+ * @approxlen: an upper bound of the length of the data that will
+ * be put into the skb
+ * @gfp: allocation flags
+ *
+ * This function allocates and pre-fills an skb for an event on the
+ * testmode multicast group.
+ *
+ * The returned skb (or %NULL if any errors happen) is set up in the
+ * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
+ * for an event. As there, you should simply add data to it that will
+ * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
+ * not modify the skb in any other way.
+ *
+ * When done filling the skb, call cfg80211_testmode_event() with the
+ * skb to send the event.
+ */
+struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
+ int approxlen, gfp_t gfp);
+
+/**
+ * cfg80211_testmode_event - send the event
+ * @skb: The skb, must have been allocated with
+ * cfg80211_testmode_alloc_event_skb()
+ * @gfp: allocation flags
+ *
+ * This function sends the given @skb, which must have been allocated
+ * by cfg80211_testmode_alloc_event_skb(), as an event. It always
+ * consumes it.
+ */
+void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
+
+#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
+#else
+#define CFG80211_TESTMODE_CMD(cmd)
+#endif
+
+/**
+ * cfg80211_connect_result - notify cfg80211 of connection result
+ *
+ * @dev: network device
+ * @bssid: the BSSID of the AP
+ * @req_ie: association request IEs (maybe be %NULL)
+ * @req_ie_len: association request IEs length
+ * @resp_ie: association response IEs (may be %NULL)
+ * @resp_ie_len: assoc response IEs length
+ * @status: status code, 0 for successful connection, use
+ * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
+ * the real status code for failures.
+ * @gfp: allocation flags
+ *
+ * It should be called by the underlying driver whenever connect() has
+ * succeeded.
+ */
+void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
+ const u8 *req_ie, size_t req_ie_len,
+ const u8 *resp_ie, size_t resp_ie_len,
+ u16 status, gfp_t gfp);
+
+/**
+ * cfg80211_roamed - notify cfg80211 of roaming
+ *
+ * @dev: network device
+ * @bssid: the BSSID of the new AP
+ * @req_ie: association request IEs (maybe be %NULL)
+ * @req_ie_len: association request IEs length
+ * @resp_ie: association response IEs (may be %NULL)
+ * @resp_ie_len: assoc response IEs length
+ * @gfp: allocation flags
+ *
+ * It should be called by the underlying driver whenever it roamed
+ * from one AP to another while connected.
+ */
+void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
+ const u8 *req_ie, size_t req_ie_len,
+ const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
+
+/**
+ * cfg80211_disconnected - notify cfg80211 that connection was dropped
+ *
+ * @dev: network device
+ * @ie: information elements of the deauth/disassoc frame (may be %NULL)
+ * @ie_len: length of IEs
+ * @reason: reason code for the disconnection, set it to 0 if unknown
+ * @gfp: allocation flags
+ *
+ * After it calls this function, the driver should enter an idle state
+ * and not try to connect to any AP any more.
+ */
+void cfg80211_disconnected(struct net_device *dev, u16 reason,
+ u8 *ie, size_t ie_len, gfp_t gfp);
+
+/**
+ * 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);