#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>
* structures here describe these capabilities in detail.
*/
+struct wiphy;
+
/*
* wireless hardware capability structures
*/
*
* @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
* @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
+ * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
* @IEEE80211_NUM_BANDS: number of defined bands
*/
enum ieee80211_band {
IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
+ IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
/* keep last */
IEEE80211_NUM_BANDS
* is not permitted.
* @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
* is not permitted.
+ * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
*/
enum ieee80211_channel_flags {
IEEE80211_CHAN_DISABLED = 1<<0,
IEEE80211_CHAN_RADAR = 1<<3,
IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
+ IEEE80211_CHAN_NO_OFDM = 1<<6,
};
#define IEEE80211_CHAN_NO_HT40 \
struct ieee80211_mcs_info mcs;
};
+/**
+ * struct ieee80211_sta_vht_cap - STA's VHT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11ac VHT capabilities for an STA.
+ *
+ * @vht_supported: is VHT supported by the STA
+ * @cap: VHT capabilities map as described in 802.11ac spec
+ * @vht_mcs: Supported VHT MCS rates
+ */
+struct ieee80211_sta_vht_cap {
+ bool vht_supported;
+ u32 cap; /* use IEEE80211_VHT_CAP_ */
+ struct ieee80211_vht_mcs_info vht_mcs;
+};
+
/**
* struct ieee80211_supported_band - frequency band definition
*
* rates" IE, i.e. CCK rates first, then OFDM.
* @n_bitrates: Number of bitrates in @bitrates
* @ht_cap: HT capabilities in this band
+ * @vht_cap: VHT capabilities in this band
*/
struct ieee80211_supported_band {
struct ieee80211_channel *channels;
int n_channels;
int n_bitrates;
struct ieee80211_sta_ht_cap ht_cap;
+ struct ieee80211_sta_vht_cap vht_cap;
};
/*
u32 cipher;
};
+/**
+ * struct cfg80211_chan_def - channel definition
+ * @chan: the (control) channel
+ * @width: channel width
+ * @center_freq1: center frequency of first segment
+ * @center_freq2: center frequency of second segment
+ * (only with 80+80 MHz)
+ */
+struct cfg80211_chan_def {
+ struct ieee80211_channel *chan;
+ enum nl80211_chan_width width;
+ u32 center_freq1;
+ u32 center_freq2;
+};
+
+/**
+ * cfg80211_get_chandef_type - return old channel type from chandef
+ * @chandef: the channel definition
+ *
+ * Returns the old channel type (NOHT, HT20, HT40+/-) from a given
+ * chandef, which must have a bandwidth allowing this conversion.
+ */
+static inline enum nl80211_channel_type
+cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
+{
+ switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ return NL80211_CHAN_NO_HT;
+ case NL80211_CHAN_WIDTH_20:
+ return NL80211_CHAN_HT20;
+ case NL80211_CHAN_WIDTH_40:
+ if (chandef->center_freq1 > chandef->chan->center_freq)
+ return NL80211_CHAN_HT40PLUS;
+ return NL80211_CHAN_HT40MINUS;
+ default:
+ WARN_ON(1);
+ return NL80211_CHAN_NO_HT;
+ }
+}
+
+/**
+ * cfg80211_chandef_create - create channel definition using channel type
+ * @chandef: the channel definition struct to fill
+ * @channel: the control channel
+ * @chantype: the channel type
+ *
+ * Given a channel type, create a channel definition.
+ */
+void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
+ struct ieee80211_channel *channel,
+ enum nl80211_channel_type chantype);
+
+/**
+ * cfg80211_chandef_identical - check if two channel definitions are identical
+ * @chandef1: first channel definition
+ * @chandef2: second channel definition
+ *
+ * Returns %true if the channels defined by the channel definitions are
+ * identical, %false otherwise.
+ */
+static inline bool
+cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
+ const struct cfg80211_chan_def *chandef2)
+{
+ return (chandef1->chan == chandef2->chan &&
+ chandef1->width == chandef2->width &&
+ chandef1->center_freq1 == chandef2->center_freq1 &&
+ chandef1->center_freq2 == chandef2->center_freq2);
+}
+
+/**
+ * cfg80211_chandef_compatible - check if two channel definitions are compatible
+ * @chandef1: first channel definition
+ * @chandef2: second channel definition
+ *
+ * Returns %NULL if the given channel definitions are incompatible,
+ * chandef1 or chandef2 otherwise.
+ */
+const struct cfg80211_chan_def *
+cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
+ const struct cfg80211_chan_def *chandef2);
+
+/**
+ * cfg80211_chandef_valid - check if a channel definition is valid
+ * @chandef: the channel definition to check
+ */
+bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
+
+/**
+ * cfg80211_chandef_usable - check if secondary channels can be used
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ * @prohibited_flags: the regulatory chanenl flags that must not be set
+ */
+bool cfg80211_chandef_usable(struct wiphy *wiphy,
+ const struct cfg80211_chan_def *chandef,
+ u32 prohibited_flags);
+
/**
* enum survey_info_flags - survey information flags
*
*
* Used to configure an AP interface.
*
+ * @chandef: defines the channel to use
* @beacon: beacon data
* @beacon_interval: beacon interval
* @dtim_period: DTIM period
* @crypto: crypto settings
* @privacy: the BSS uses privacy
* @auth_type: Authentication type (algorithm)
+ * @inactivity_timeout: time in seconds to determine station's inactivity.
+ * @p2p_ctwindow: P2P CT Window
+ * @p2p_opp_ps: P2P opportunistic PS
*/
struct cfg80211_ap_settings {
+ struct cfg80211_chan_def chandef;
+
struct cfg80211_beacon_data beacon;
int beacon_interval, dtim_period;
struct cfg80211_crypto_settings crypto;
bool privacy;
enum nl80211_auth_type auth_type;
+ int inactivity_timeout;
+ u8 p2p_ctwindow;
+ bool p2p_opp_ps;
};
/**
* @plink_action: plink action to take
* @plink_state: set the peer link state for a station
* @ht_capa: HT capabilities of station
+ * @vht_capa: VHT 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
u8 plink_action;
u8 plink_state;
struct ieee80211_ht_cap *ht_capa;
+ struct ieee80211_vht_cap *vht_capa;
u8 uapsd_queues;
u8 max_sp;
};
* @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
+ * @STATION_INFO_T_OFFSET: @t_offset filled
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
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
+ STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
+ STATION_INFO_T_OFFSET = 1<<20,
};
/**
* 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_MCS: mcs field filled with HT MCS
+ * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
+ * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
+ * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
+ * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
+ * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
* @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
+ * @RATE_INFO_FLAGS_60G: 60GHz MCS
*/
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,
+ RATE_INFO_FLAGS_MCS = BIT(0),
+ RATE_INFO_FLAGS_VHT_MCS = BIT(1),
+ RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2),
+ RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3),
+ RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4),
+ RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5),
+ RATE_INFO_FLAGS_SHORT_GI = BIT(6),
+ RATE_INFO_FLAGS_60G = BIT(7),
};
/**
* @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
+ * @nss: number of streams (VHT only)
*/
struct rate_info {
u8 flags;
u8 mcs;
u16 legacy;
+ u8 nss;
};
/**
* @llid: mesh local link id
* @plid: mesh peer link id
* @plink_state: mesh peer link state
- * @signal: signal strength of last received packet in dBm
- * @signal_avg: signal strength average in dBm
+ * @signal: The signal strength, type depends on the wiphy's signal_type.
+ * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
+ * 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
* @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.
+ * @t_offset: Time offset of the station relative to this host.
*/
struct station_info {
u32 filled;
size_t assoc_req_ies_len;
u32 beacon_loss_count;
+ s64 t_offset;
/*
* Note: Add a new enum station_info_flags value for each new field and
* @ap_isolate: do not forward packets between connected stations
* @ht_opmode: HT Operation mode
* (u16 = opmode, -1 = do not change)
+ * @p2p_ctwindow: P2P CT Window (-1 = no change)
+ * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
*/
struct bss_parameters {
int use_cts_prot;
u8 basic_rates_len;
int ap_isolate;
int ht_opmode;
+ s8 p2p_ctwindow, p2p_opp_ps;
};
-/*
+/**
* struct mesh_config - 802.11s mesh configuration
*
* These parameters can be changed while the mesh is active.
+ *
+ * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
+ * by the Mesh Peering Open message
+ * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
+ * used by the Mesh Peering Open message
+ * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
+ * the mesh peering management to close a mesh peering
+ * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
+ * mesh interface
+ * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
+ * be sent to establish a new peer link instance in a mesh
+ * @dot11MeshTTL: the value of TTL field set at a source mesh STA
+ * @element_ttl: the value of TTL field set at a mesh STA for path selection
+ * elements
+ * @auto_open_plinks: whether we should automatically open peer links when we
+ * detect compatible mesh peers
+ * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
+ * synchronize to for 11s default synchronization method
+ * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
+ * that an originator mesh STA can send to a particular path target
+ * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
+ * @min_discovery_timeout: the minimum length of time to wait until giving up on
+ * a path discovery in milliseconds
+ * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
+ * receiving a PREQ shall consider the forwarding information from the
+ * root to be valid. (TU = time unit)
+ * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
+ * which a mesh STA can send only one action frame containing a PREQ
+ * element
+ * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
+ * which a mesh STA can send only one Action frame containing a PERR
+ * element
+ * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
+ * it takes for an HWMP information element to propagate across the mesh
+ * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
+ * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
+ * announcements are transmitted
+ * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
+ * station has access to a broader network beyond the MBSS. (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)
+ * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
+ * entity (default is TRUE - forwarding entity)
+ * @rssi_threshold: the threshold for average signal strength of candidate
+ * station to establish a peer link
+ * @ht_opmode: mesh HT protection mode
+ *
+ * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
+ * receiving a proactive PREQ shall consider the forwarding information to
+ * the root mesh STA to be valid.
+ *
+ * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
+ * PREQs are transmitted.
+ * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
+ * during which a mesh STA can send only one Action frame containing
+ * a PREQ element for root path confirmation.
*/
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;
+ u8 dot11MeshMaxRetries;
+ u8 dot11MeshTTL;
+ u8 element_ttl;
bool auto_open_plinks;
- /* HWMP parameters */
- u8 dot11MeshHWMPmaxPREQretries;
+ u32 dot11MeshNbrOffsetMaxNeighbor;
+ u8 dot11MeshHWMPmaxPREQretries;
u32 path_refresh_time;
u16 min_discovery_timeout;
u32 dot11MeshHWMPactivePathTimeout;
u16 dot11MeshHWMPpreqMinInterval;
u16 dot11MeshHWMPperrMinInterval;
u16 dot11MeshHWMPnetDiameterTraversalTime;
- u8 dot11MeshHWMPRootMode;
+ 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 dot11MeshGateAnnouncementProtocol;
bool dot11MeshForwarding;
s32 rssi_threshold;
+ u16 ht_opmode;
+ u32 dot11MeshHWMPactivePathToRootTimeout;
+ u16 dot11MeshHWMProotInterval;
+ u16 dot11MeshHWMPconfirmationInterval;
};
/**
* struct mesh_setup - 802.11s mesh setup configuration
+ * @chandef: defines the channel to use
* @mesh_id: the mesh ID
* @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
+ * @sync_method: which synchronization method to use
* @path_sel_proto: which path selection protocol to use
* @path_metric: which metric to use
* @ie: vendor information elements (optional)
* These parameters are fixed when the mesh is created.
*/
struct mesh_setup {
+ struct cfg80211_chan_def chandef;
const u8 *mesh_id;
u8 mesh_id_len;
- u8 path_sel_proto;
- u8 path_metric;
+ u8 sync_method;
+ u8 path_sel_proto;
+ u8 path_metric;
const u8 *ie;
u8 ie_len;
bool is_authenticated;
/**
* struct ieee80211_txq_params - TX queue parameters
- * @queue: TX queue identifier (NL80211_TXQ_Q_*)
+ * @ac: AC identifier
* @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]
* @aifs: Arbitration interframe space [0..255]
*/
struct ieee80211_txq_params {
- enum nl80211_txq_q queue;
+ enum nl80211_ac ac;
u16 txop;
u16 cwmin;
u16 cwmax;
u8 aifs;
};
-/* from net/wireless.h */
-struct wiphy;
-
/**
* DOC: Scanning and BSS list handling
*
* @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
+ * @flags: bit field of flags controlling operation
* @rates: bitmap of rates to advertise for each band
* @wiphy: the wiphy this was for
- * @dev: the interface
+ * @scan_start: time (in jiffies) when the scan started
+ * @wdev: the wireless device to scan for
* @aborted: (internal) scan request was notified as aborted
* @no_cck: used to send probe requests at non CCK rate in 2GHz band
*/
u32 n_channels;
const u8 *ie;
size_t ie_len;
+ u32 flags;
u32 rates[IEEE80211_NUM_BANDS];
+ struct wireless_dev *wdev;
+
/* internal */
struct wiphy *wiphy;
- struct net_device *dev;
+ unsigned long scan_start;
bool aborted;
bool no_cck;
* @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
+ * @flags: bit field of flags controlling operation
* @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).
* @wiphy: the wiphy this was for
* @dev: the interface
* @channels: channels to scan
+ * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
*/
struct cfg80211_sched_scan_request {
struct cfg80211_ssid *ssids;
u32 interval;
const u8 *ie;
size_t ie_len;
+ u32 flags;
struct cfg80211_match_set *match_sets;
int n_match_sets;
+ s32 rssi_thold;
/* internal */
struct wiphy *wiphy;
struct net_device *dev;
+ unsigned long scan_start;
/* keep last */
struct ieee80211_channel *channels[0];
CFG80211_SIGNAL_TYPE_UNSPEC,
};
+/**
+ * struct cfg80211_bss_ie_data - BSS entry IE data
+ * @rcu_head: internal use, for freeing
+ * @len: length of the IEs
+ * @data: IE data
+ */
+struct cfg80211_bss_ies {
+ struct rcu_head rcu_head;
+ int len;
+ u8 data[];
+};
+
/**
* struct cfg80211_bss - BSS description
*
* @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
+ * @ies: 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 {
+ u64 tsf;
+
struct ieee80211_channel *channel;
- u8 bssid[ETH_ALEN];
- u64 tsf;
+ const struct cfg80211_bss_ies __rcu *ies;
+ const struct cfg80211_bss_ies __rcu *beacon_ies;
+ const struct cfg80211_bss_ies __rcu *proberesp_ies;
+
+ void (*free_priv)(struct cfg80211_bss *bss);
+
+ s32 signal;
+
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;
+ u8 bssid[ETH_ALEN];
- 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
+ *
+ * Note that the return value is an RCU-protected pointer, so
+ * rcu_read_lock() must be held when calling this function.
* Returns %NULL if not found.
*/
const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
* @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
+ * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
+ * Authentication transaction sequence number field.
+ * @sae_data_len: Length of sae_data buffer in octets
*/
struct cfg80211_auth_request {
struct cfg80211_bss *bss;
enum nl80211_auth_type auth_type;
const u8 *key;
u8 key_len, key_idx;
+ const u8 *sae_data;
+ size_t sae_data_len;
};
/**
const u8 *ie;
size_t ie_len;
u16 reason_code;
+ bool local_state_change;
};
/**
* @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)
+ * @chandef: defines the channel to use if no other IBSS to join can be found
* @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
struct cfg80211_ibss_params {
u8 *ssid;
u8 *bssid;
- struct ieee80211_channel *channel;
- enum nl80211_channel_type channel_type;
+ struct cfg80211_chan_def chandef;
u8 *ie;
u8 ssid_len, ie_len;
u16 beacon_interval;
* @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.
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;
};
* be %NULL or contain the enabled Wake-on-Wireless triggers that are
* configured for the device.
* @resume: wiphy device needs to be resumed
+ * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
+ * to call device_set_wakeup_enable() to enable/disable wakeup from
+ * the device.
*
* @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.
+ * the new netdev in the wiphy's network namespace! Returns the struct
+ * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
+ * also set the address member in the wdev.
*
- * @del_virtual_intf: remove the virtual interface determined by ifindex.
+ * @del_virtual_intf: remove the virtual interface
*
* @change_virtual_intf: change type/configuration of virtual interface,
* keep the struct wireless_dev's iftype updated.
*
* @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.
+ * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
+ * as it doesn't implement join_mesh and needs to set the channel to
+ * join the mesh instead.
+ *
+ * @set_monitor_channel: Set the monitor mode channel for the device. If other
+ * interfaces are active this callback should reject the configuration.
+ * If no interfaces are active or the device is down, the channel should
+ * be stored for when a monitor interface becomes active.
*
* @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().
* to a merge.
* @leave_ibss: Leave the IBSS.
*
+ * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
+ * MESH mode)
+ *
* @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().
+ * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
+ * wdev may be %NULL if power was set for the wiphy, and will
+ * always be %NULL unless the driver supports per-vif TX power
+ * (as advertised by the nl80211 feature flag.)
* @get_tx_power: store the current TX power into the dbm variable;
* return 0 if successful
*
* @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.
+ * @set_cqm_txe_config: Configure connection quality monitor TX error
+ * thresholds.
* @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.
+ * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan.
*
* @mgmt_frame_register: Notify driver that a management frame type was
* registered. Note that this callback may not sleep, and cannot run
* later passes to cfg80211_probe_status().
*
* @set_noack_map: Set the NoAck Map for the TIDs.
+ *
+ * @get_et_sset_count: Ethtool API to get string-set count.
+ * See @ethtool_ops.get_sset_count
+ *
+ * @get_et_stats: Ethtool API to get a set of u64 stats.
+ * See @ethtool_ops.get_ethtool_stats
+ *
+ * @get_et_strings: Ethtool API to get a set of strings to describe stats
+ * and perhaps other supported types of ethtool data-sets.
+ * See @ethtool_ops.get_strings
+ *
+ * @get_channel: Get the current operating channel for the virtual interface.
+ * For monitor interfaces, it should return %NULL unless there's a single
+ * current monitoring channel.
+ *
+ * @start_p2p_device: Start the given P2P device.
+ * @stop_p2p_device: Stop the given P2P device.
*/
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);
+ void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
+
+ struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
+ const char *name,
+ enum nl80211_iftype type,
+ u32 *flags,
+ struct vif_params *params);
+ int (*del_virtual_intf)(struct wiphy *wiphy,
+ struct wireless_dev *wdev);
int (*change_virtual_intf)(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
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 (*libertas_set_mesh_channel)(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct ieee80211_channel *chan);
- int (*scan)(struct wiphy *wiphy, struct net_device *dev,
+ int (*set_monitor_channel)(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef);
+
+ int (*scan)(struct wiphy *wiphy,
struct cfg80211_scan_request *request);
int (*auth)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params);
int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
+ int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
+ int rate[IEEE80211_NUM_BANDS]);
+
int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
- int (*set_tx_power)(struct wiphy *wiphy,
+ int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
enum nl80211_tx_power_setting type, int mbm);
- int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
+ int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
+ int *dbm);
int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
const u8 *addr);
int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
int (*remain_on_channel)(struct wiphy *wiphy,
- struct net_device *dev,
+ struct wireless_dev *wdev,
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,
+ struct wireless_dev *wdev,
u64 cookie);
- int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
+ int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
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);
+ 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,
+ struct wireless_dev *wdev,
u64 cookie);
int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
struct net_device *dev,
s32 rssi_thold, u32 rssi_hyst);
+ int (*set_cqm_txe_config)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u32 rate, u32 pkts, u32 intvl);
+
void (*mgmt_frame_register)(struct wiphy *wiphy,
- struct net_device *dev,
+ struct wireless_dev *wdev,
u16 frame_type, bool reg);
int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
struct net_device *dev,
u16 noack_map);
- struct ieee80211_channel *(*get_channel)(struct wiphy *wiphy);
+ int (*get_et_sset_count)(struct wiphy *wiphy,
+ struct net_device *dev, int sset);
+ void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data);
+ void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
+ u32 sset, u8 *data);
+
+ int (*get_channel)(struct wiphy *wiphy,
+ struct wireless_dev *wdev,
+ struct cfg80211_chan_def *chandef);
+
+ int (*start_p2p_device)(struct wiphy *wiphy,
+ struct wireless_dev *wdev);
+ void (*stop_p2p_device)(struct wiphy *wiphy,
+ struct wireless_dev *wdev);
};
/*
* 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
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),
+ /* use hole at 12 */
WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
WIPHY_FLAG_AP_UAPSD = BIT(14),
WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
char fw_version[ETHTOOL_BUSINFO_LEN];
u32 hw_version;
+#ifdef CONFIG_PM
struct wiphy_wowlan_support wowlan;
+#endif
u16 max_remain_on_channel_duration;
/* fields below are read-only, assigned by cfg80211 */
- const struct ieee80211_regdomain *regd;
+ const struct ieee80211_regdomain __rcu *regd;
/* the item in /sys/class/ieee80211/ points to this,
* you need use set_wiphy_dev() (see below) */
struct cfg80211_cached_keys;
/**
- * struct wireless_dev - wireless per-netdev state
+ * struct wireless_dev - wireless device state
+ *
+ * For netdevs, this structure must be allocated by the driver
+ * that uses the ieee80211_ptr field in struct net_device (this
+ * is intentional so it can be allocated along with the netdev.)
+ * It need not be registered then as netdev registration will
+ * be intercepted by cfg80211 to see the new wireless device.
*
- * 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.)
+ * For non-netdev uses, it must also be allocated by the driver
+ * in response to the cfg80211 callbacks that require it, as
+ * there's no netdev registration in that case it may not be
+ * allocated outside of callback operations that return it.
*
* @wiphy: pointer to hardware description
* @iftype: interface type
* @list: (private) Used to collect the interfaces
- * @netdev: (private) Used to reference back to the netdev
+ * @netdev: (private) Used to reference back to the netdev, may be %NULL
+ * @identifier: (private) Identifier used in nl80211 to identify this
+ * wireless device if it has no 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
+ * the user-set AP, monitor and WDS channel
+ * @preset_chan: (private) Used by the internal configuration code to
+ * track the channel to be used for AP later
+ * @preset_chantype: (private) the corresponding channel type
* @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
* @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
+ * @address: The address for this device, valid only if @netdev is %NULL
+ * @p2p_started: true if this is a P2P Device that has been started
*/
struct wireless_dev {
struct wiphy *wiphy;
struct list_head list;
struct net_device *netdev;
+ u32 identifier;
+
struct list_head mgmt_registrations;
spinlock_t mgmt_registrations_lock;
struct work_struct cleanup_work;
- bool use_4addr;
+ bool use_4addr, p2p_started;
+
+ u8 address[ETH_ALEN] __aligned(sizeof(u16));
/* currently used for IBSS and SME - might be rearranged later */
u8 ssid[IEEE80211_MAX_SSID_LEN];
spinlock_t event_lock;
struct cfg80211_internal_bss *current_bss; /* associated / joined */
+ struct cfg80211_chan_def preset_chandef;
+
+ /* for AP and mesh channel tracking */
struct ieee80211_channel *channel;
+ bool ibss_fixed;
+
bool ps;
int ps_timeout;
int beacon_interval;
- u32 ap_unexpected_nlpid;
+ u32 ap_unexpected_nlportid;
#ifdef CONFIG_CFG80211_WEXT
/* wext data */
#endif
};
+static inline u8 *wdev_address(struct wireless_dev *wdev)
+{
+ if (wdev->netdev)
+ return wdev->netdev->dev_addr;
+ return wdev->address;
+}
+
/**
* wdev_priv - return wiphy priv from wireless_dev
*
*/
unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
+/**
+ * ieee80211_get_mesh_hdrlen - get mesh extension header length
+ * @meshhdr: the mesh extension header, only the flags field
+ * (first byte) will be accessed
+ * Returns the length of the extension header, which is always at
+ * least 6 bytes and at most 18 if address 5 and 6 are present.
+ */
+unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
+
/**
* DOC: Data path helpers
*
* 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
* 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,
+extern int freq_reg_info(struct wiphy *wiphy, u32 center_freq,
const struct ieee80211_reg_rule **reg_rule);
/*
* @wiphy: the wiphy reporting the BSS
* @channel: The channel the frame was received on
* @bssid: the BSSID of the BSS
- * @timestamp: the TSF timestamp sent by the peer
+ * @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
struct cfg80211_bss * __must_check
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,
+ 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,
/**
* cfg80211_ready_on_channel - notification of remain_on_channel start
- * @dev: network device
+ * @wdev: wireless 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,
+void cfg80211_ready_on_channel(struct wireless_dev *wdev, 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
+ * @wdev: wireless 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,
+void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
struct ieee80211_channel *chan,
- enum nl80211_channel_type channel_type,
gfp_t gfp);
*/
void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
+/**
+ * cfg80211_conn_failed - connection request failed notification
+ *
+ * @dev: the netdev
+ * @mac_addr: the station's address
+ * @reason: the reason for connection failure
+ * @gfp: allocation flags
+ *
+ * Whenever a station tries to connect to an AP and if the station
+ * could not connect to the AP as the AP has rejected the connection
+ * for some reasons, this function is called.
+ *
+ * The reason for connection failure can be any of the value from
+ * nl80211_connect_failed_reason enum
+ */
+void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
+ enum nl80211_connect_failed_reason reason,
+ gfp_t gfp);
+
/**
* cfg80211_rx_mgmt - notification of received, unprocessed management frame
- * @dev: network device
+ * @wdev: wireless device receiving the frame
* @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
* 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, const u8 *buf,
- size_t len, gfp_t gfp);
+bool cfg80211_rx_mgmt(struct wireless_dev *wdev, 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
+ * @wdev: wireless device receiving the frame
* @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
* @buf: Management frame (header + body)
* @len: length of the frame data
* 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,
+void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
const u8 *buf, size_t len, bool ack, gfp_t gfp);
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
const u8 *peer, u32 num_packets, gfp_t gfp);
+/**
+ * cfg80211_cqm_txe_notify - TX error rate event
+ * @dev: network device
+ * @peer: peer's MAC address
+ * @num_packets: how many packets were lost
+ * @rate: % of packets which failed transmission
+ * @intvl: interval (in s) over which the TX failure threshold was breached.
+ * @gfp: context flags
+ *
+ * Notify userspace when configured % TX failures over number of packets in a
+ * given interval is exceeded.
+ */
+void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
+ u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
+
/**
* cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
* @dev: network device
* @frame: the frame
* @len: length of the frame
* @freq: frequency the frame was received on
- * @gfp: allocation flags
+ * @sig_dbm: signal strength in mBm, or 0 if unknown
*
* Use this function to report to userspace when a beacon was
* received. It is not useful to call this when there is no
*/
void cfg80211_report_obss_beacon(struct wiphy *wiphy,
const u8 *frame, size_t len,
- int freq, gfp_t gfp);
+ int freq, int sig_dbm);
-/*
- * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
+/**
+ * cfg80211_reg_can_beacon - check if beaconing is allowed
* @wiphy: the wiphy
- * @chan: main channel
- * @channel_type: HT mode
+ * @chandef: the channel definition
+ *
+ * This function returns true if there is no secondary channel or the secondary
+ * channel(s) can be used for beaconing (i.e. is not a radar channel etc.)
+ */
+bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef);
+
+/*
+ * cfg80211_ch_switch_notify - update wdev channel and notify userspace
+ * @dev: the device which switched channels
+ * @chandef: the new channel definition
+ *
+ * Acquires wdev_lock, so must only be called from sleepable driver context!
+ */
+void cfg80211_ch_switch_notify(struct net_device *dev,
+ struct cfg80211_chan_def *chandef);
+
+/*
+ * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
+ * @dev: the device on which the operation is requested
+ * @peer: the MAC address of the peer device
+ * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
+ * NL80211_TDLS_TEARDOWN)
+ * @reason_code: the reason code for teardown request
+ * @gfp: allocation flags
+ *
+ * This function is used to request userspace to perform TDLS operation that
+ * requires knowledge of keys, i.e., link setup or teardown when the AP
+ * connection uses encryption. This is optional mechanism for the driver to use
+ * if it can automatically determine when a TDLS link could be useful (e.g.,
+ * based on traffic and signal strength for a peer).
+ */
+void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
+ enum nl80211_tdls_operation oper,
+ u16 reason_code, gfp_t gfp);
+
+/*
+ * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
+ * @rate: given rate_info to calculate bitrate from
+ *
+ * return 0 if MCS index >= 32
+ */
+u32 cfg80211_calculate_bitrate(struct rate_info *rate);
+
+/**
+ * cfg80211_unregister_wdev - remove the given wdev
+ * @wdev: struct wireless_dev to remove
+ *
+ * Call this function only for wdevs that have no netdev assigned,
+ * e.g. P2P Devices. It removes the device from the list so that
+ * it can no longer be used. It is necessary to call this function
+ * even when cfg80211 requests the removal of the interface by
+ * calling the del_virtual_intf() callback. The function must also
+ * be called when the driver wishes to unregister the wdev, e.g.
+ * when the device is unbound from the driver.
+ *
+ * Requires the RTNL to be held.
+ */
+void cfg80211_unregister_wdev(struct wireless_dev *wdev);
+
+/**
+ * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
+ * @ies: the input IE buffer
+ * @len: the input length
+ * @attr: the attribute ID to find
+ * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
+ * if the function is only called to get the needed buffer size
+ * @bufsize: size of the output buffer
+ *
+ * The function finds a given P2P attribute in the (vendor) IEs and
+ * copies its contents to the given buffer.
+ *
+ * The return value is a negative error code (-%EILSEQ or -%ENOENT) if
+ * the data is malformed or the attribute can't be found (respectively),
+ * or the length of the found attribute (which can be zero).
*/
-int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
- struct ieee80211_channel *chan,
- enum nl80211_channel_type channel_type);
+int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
+ enum ieee80211_p2p_attr_id attr,
+ u8 *buf, unsigned int bufsize);
/* Logging, debugging and troubleshooting/diagnostic helpers. */