path: root/include/linux/nl80211.h

#ifndef __LINUX_NL80211_H
#define __LINUX_NL80211_H
/*
 * 802.11 netlink interface public header
 *
 * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
 */

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

/**
 * enum nl80211_commands - supported nl80211 commands
 *
 * @NL80211_CMD_UNSPEC: unspecified command to catch errors
 *
 * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
 *	to get a list of all present wiphys.
 * @NL80211_CMD_SET_WIPHY: set wiphy name, needs %NL80211_ATTR_WIPHY and
 *	%NL80211_ATTR_WIPHY_NAME.
 * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
 *	or rename notification. Has attributes %NL80211_ATTR_WIPHY and
 *	%NL80211_ATTR_WIPHY_NAME.
 * @NL80211_CMD_DEL_WIPHY: Wiphy deleted. Has attributes
 *	%NL80211_ATTR_WIPHY and %NL80211_ATTR_WIPHY_NAME.
 *
 * @NL80211_CMD_GET_INTERFACE: Request an interface's configuration;
 *	either a dump request on a %NL80211_ATTR_WIPHY or a specific get
 *	on an %NL80211_ATTR_IFINDEX is supported.
 * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires
 *	%NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
 * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response
 *	to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX,
 *	%NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also
 *	be sent from userspace to request creation of a new virtual interface,
 *	then requires attributes %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFTYPE and
 *	%NL80211_ATTR_IFNAME.
 * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
 *	%NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
 *	userspace to request deletion of a virtual interface, then requires
 *	attribute %NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
 *	by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
 * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT or
 *	%NL80211_ATTR_KEY_THRESHOLD.
 * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
 *	%NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER
 *	attributes.
 * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
 *	or %NL80211_ATTR_MAC.
 *
 * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a
 *	%NL80222_CMD_NEW_BEACON message)
 * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
 *	using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
 *	%NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes.
 * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
 *	parameters are like for %NL80211_CMD_SET_BEACON.
 * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
 *
 * @NL80211_CMD_GET_STATION: Get station attributes for station identified by
 *	%NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_STATION: Set station attributes for station identified by
 *	%NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the
 *	the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
 *	or, if no MAC address given, all stations, on the interface identified
 *	by %NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_GET_MPATH: Get mesh path attributes for mesh path to
 * 	destination %NL80211_ATTR_MAC on the interface identified by
 * 	%NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_MPATH:  Set mesh path attributes for mesh path to
 * 	destination %NL80211_ATTR_MAC on the interface identified by
 * 	%NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_NEW_PATH: Add a mesh path with given attributes to the
 *	the interface identified by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_DEL_PATH: Remove a mesh path identified by %NL80211_ATTR_MAC
 *	or, if no MAC address given, all mesh paths, on the interface identified
 *	by %NL80211_ATTR_IFINDEX.
 * @NL80211_CMD_SET_BSS: Set BSS attributes for BSS identified by
 *	%NL80211_ATTR_IFINDEX.
 *
 * @NL80211_CMD_MAX: highest used command number
 * @__NL80211_CMD_AFTER_LAST: internal use
 */
enum nl80211_commands {
/* don't change the order or add anything inbetween, this is ABI! */
	NL80211_CMD_UNSPEC,

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

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

	NL80211_CMD_GET_KEY,
	NL80211_CMD_SET_KEY,
	NL80211_CMD_NEW_KEY,
	NL80211_CMD_DEL_KEY,

	NL80211_CMD_GET_BEACON,
	NL80211_CMD_SET_BEACON,
	NL80211_CMD_NEW_BEACON,
	NL80211_CMD_DEL_BEACON,

	NL80211_CMD_GET_STATION,
	NL80211_CMD_SET_STATION,
	NL80211_CMD_NEW_STATION,
	NL80211_CMD_DEL_STATION,

	NL80211_CMD_GET_MPATH,
	NL80211_CMD_SET_MPATH,
	NL80211_CMD_NEW_MPATH,
	NL80211_CMD_DEL_MPATH,

	NL80211_CMD_SET_BSS,

	/* add commands here */

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

/*
 * Allow user space programs to use #ifdef on new commands by defining them
 * here
 */
#define NL80211_CMD_SET_BSS NL80211_CMD_SET_BSS

/**
 * enum nl80211_attrs - nl80211 netlink attributes
 *
 * @NL80211_ATTR_UNSPEC: unspecified attribute to catch errors
 *
 * @NL80211_ATTR_WIPHY: index of wiphy to operate on, cf.
 *	/sys/class/ieee80211/<phyname>/index
 * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
 *
 * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
 * @NL80211_ATTR_IFNAME: network interface name
 * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype
 *
 * @NL80211_ATTR_MAC: MAC address (various uses)
 *
 * @NL80211_ATTR_KEY_DATA: (temporal) key data; for TKIP this consists of
 *	16 bytes encryption key followed by 8 bytes each for TX and RX MIC
 *	keys
 * @NL80211_ATTR_KEY_IDX: key ID (u8, 0-3)
 * @NL80211_ATTR_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11
 *	section 7.3.2.25.1, e.g. 0x000FAC04)
 * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
 *	CCMP keys, each six bytes in little endian
 *
 * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU
 * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing
 * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
 * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
 *
 * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
 * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
 *	&enum nl80211_sta_flags.
 * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
 *	IEEE 802.11 7.3.1.6 (u16).
 * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
 *	rates as defined by IEEE 802.11 7.3.2.2 but without the length
 *	restriction (at most %NL80211_MAX_SUPP_RATES).
 * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
 *	to, or the AP interface the station was originally added to to.
 * @NL80211_ATTR_STA_INFO: information about a station, part of station info
 *	given for %NL80211_CMD_GET_STATION, nested attribute containing
 *	info as possible, see &enum nl80211_sta_info.
 *
 * @NL80211_ATTR_WIPHY_BANDS: Information about an operating bands,
 *	consisting of a nested array.
 *
 * @NL80211_ATTR_MESH_ID: mesh id (1-32 bytes).
 * @NL80211_ATTR_PLINK_ACTION: action to perform on the mesh peer link.
 * @NL80211_ATTR_MPATH_NEXT_HOP: MAC address of the next hop for a mesh path.
 * @NL80211_ATTR_MPATH_INFO: information about a mesh_path, part of mesh path
 * 	info given for %NL80211_CMD_GET_MPATH, nested attribute described at
 *	&enum nl80211_mpath_info.
 *
 *
 * @NL80211_ATTR_MNTR_FLAGS: flags, nested element with NLA_FLAG attributes of
 *      &enum nl80211_mntr_flags.
 *
 * @NL80211_ATTR_BSS_CTS_PROT: whether CTS protection is enabled (u8, 0 or 1)
 * @NL80211_ATTR_BSS_SHORT_PREAMBLE: whether short preamble is enabled
 *	(u8, 0 or 1)
 * @NL80211_ATTR_BSS_SHORT_SLOT_TIME: whether short slot time enabled
 *	(u8, 0 or 1)
 *
 * @NL80211_ATTR_MAX: highest attribute number currently defined
 * @__NL80211_ATTR_AFTER_LAST: internal use
 */
enum nl80211_attrs {
/* don't change the order or add anything inbetween, this is ABI! */
	NL80211_ATTR_UNSPEC,

	NL80211_ATTR_WIPHY,
	NL80211_ATTR_WIPHY_NAME,

	NL80211_ATTR_IFINDEX,
	NL80211_ATTR_IFNAME,
	NL80211_ATTR_IFTYPE,

	NL80211_ATTR_MAC,

	NL80211_ATTR_KEY_DATA,
	NL80211_ATTR_KEY_IDX,
	NL80211_ATTR_KEY_CIPHER,
	NL80211_ATTR_KEY_SEQ,
	NL80211_ATTR_KEY_DEFAULT,

	NL80211_ATTR_BEACON_INTERVAL,
	NL80211_ATTR_DTIM_PERIOD,
	NL80211_ATTR_BEACON_HEAD,
	NL80211_ATTR_BEACON_TAIL,

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

	NL80211_ATTR_WIPHY_BANDS,

	NL80211_ATTR_MNTR_FLAGS,

	NL80211_ATTR_MESH_ID,
	NL80211_ATTR_STA_PLINK_ACTION,
	NL80211_ATTR_MPATH_NEXT_HOP,
	NL80211_ATTR_MPATH_INFO,

	NL80211_ATTR_BSS_CTS_PROT,
	NL80211_ATTR_BSS_SHORT_PREAMBLE,
	NL80211_ATTR_BSS_SHORT_SLOT_TIME,

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

	__NL80211_ATTR_AFTER_LAST,
	NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
};

#define NL80211_MAX_SUPP_RATES			32
#define NL80211_TKIP_DATA_OFFSET_ENCR_KEY	0
#define NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY	16
#define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY	24

/**
 * enum nl80211_iftype - (virtual) interface types
 *
 * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides
 * @NL80211_IFTYPE_ADHOC: independent BSS member
 * @NL80211_IFTYPE_STATION: managed BSS member
 * @NL80211_IFTYPE_AP: access point
 * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points
 * @NL80211_IFTYPE_WDS: wireless distribution interface
 * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames
 * @NL80211_IFTYPE_MESH_POINT: mesh point
 * @NL80211_IFTYPE_MAX: highest interface type number currently defined
 * @__NL80211_IFTYPE_AFTER_LAST: internal use
 *
 * These values are used with the %NL80211_ATTR_IFTYPE
 * to set the type of an interface.
 *
 */
enum nl80211_iftype {
	NL80211_IFTYPE_UNSPECIFIED,
	NL80211_IFTYPE_ADHOC,
	NL80211_IFTYPE_STATION,
	NL80211_IFTYPE_AP,
	NL80211_IFTYPE_AP_VLAN,
	NL80211_IFTYPE_WDS,
	NL80211_IFTYPE_MONITOR,
	NL80211_IFTYPE_MESH_POINT,

	/* keep last */
	__NL80211_IFTYPE_AFTER_LAST,
	NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1
};

/**
 * enum nl80211_sta_flags - station flags
 *
 * Station flags. When a station is added to an AP interface, it is
 * assumed to be already associated (and hence authenticated.)
 *
 * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X)
 * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
 *	with short barker preamble
 * @NL80211_STA_FLAG_WME: station is WME/QoS capable
 */
enum nl80211_sta_flags {
	__NL80211_STA_FLAG_INVALID,
	NL80211_STA_FLAG_AUTHORIZED,
	NL80211_STA_FLAG_SHORT_PREAMBLE,
	NL80211_STA_FLAG_WME,

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

/**
 * enum nl80211_sta_info - station information
 *
 * These attribute types are used with %NL80211_ATTR_STA_INFO
 * when getting information about a station.
 *
 * @__NL80211_STA_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_STA_INFO_INACTIVE_TIME: time since last activity (u32, msecs)
 * @NL80211_STA_INFO_RX_BYTES: total received bytes (u32, from this station)
 * @NL80211_STA_INFO_TX_BYTES: total transmitted bytes (u32, to this station)
 * @__NL80211_STA_INFO_AFTER_LAST: internal
 * @NL80211_STA_INFO_MAX: highest possible station info attribute
 */
enum nl80211_sta_info {
	__NL80211_STA_INFO_INVALID,
	NL80211_STA_INFO_INACTIVE_TIME,
	NL80211_STA_INFO_RX_BYTES,
	NL80211_STA_INFO_TX_BYTES,
	NL80211_STA_INFO_LLID,
	NL80211_STA_INFO_PLID,
	NL80211_STA_INFO_PLINK_STATE,

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

/**
 * enum nl80211_mpath_flags - nl80211 mesh path flags
 *
 * @NL80211_MPATH_FLAG_ACTIVE: the mesh path is active
 * @NL80211_MPATH_FLAG_RESOLVING: the mesh path discovery process is running
 * @NL80211_MPATH_FLAG_DSN_VALID: the mesh path contains a valid DSN
 * @NL80211_MPATH_FLAG_FIXED: the mesh path has been manually set
 * @NL80211_MPATH_FLAG_RESOLVED: the mesh path discovery process succeeded
 */
enum nl80211_mpath_flags {
	NL80211_MPATH_FLAG_ACTIVE =	1<<0,
	NL80211_MPATH_FLAG_RESOLVING =	1<<1,
	NL80211_MPATH_FLAG_DSN_VALID =	1<<2,
	NL80211_MPATH_FLAG_FIXED =	1<<3,
	NL80211_MPATH_FLAG_RESOLVED =	1<<4,
};

/**
 * enum nl80211_mpath_info - mesh path information
 *
 * These attribute types are used with %NL80211_ATTR_MPATH_INFO when getting
 * information about a mesh path.
 *
 * @__NL80211_MPATH_INFO_INVALID: attribute number 0 is reserved
 * @NL80211_ATTR_MPATH_FRAME_QLEN: number of queued frames for this destination
 * @NL80211_ATTR_MPATH_DSN: destination sequence number
 * @NL80211_ATTR_MPATH_METRIC: metric (cost) of this mesh path
 * @NL80211_ATTR_MPATH_EXPTIME: expiration time for the path, in msec from now
 * @NL80211_ATTR_MPATH_FLAGS: mesh path flags, enumerated in
 * 	&enum nl80211_mpath_flags;
 * @NL80211_ATTR_MPATH_DISCOVERY_TIMEOUT: total path discovery timeout, in msec
 * @NL80211_ATTR_MPATH_DISCOVERY_RETRIES: mesh path discovery retries
 */
enum nl80211_mpath_info {
	__NL80211_MPATH_INFO_INVALID,
	NL80211_MPATH_INFO_FRAME_QLEN,
	NL80211_MPATH_INFO_DSN,
	NL80211_MPATH_INFO_METRIC,
	NL80211_MPATH_INFO_EXPTIME,
	NL80211_MPATH_INFO_FLAGS,
	NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
	NL80211_MPATH_INFO_DISCOVERY_RETRIES,

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

/**
 * enum nl80211_band_attr - band attributes
 * @__NL80211_BAND_ATTR_INVALID: attribute number 0 is reserved
 * @NL80211_BAND_ATTR_FREQS: supported frequencies in this band,
 *	an array of nested frequency attributes
 * @NL80211_BAND_ATTR_RATES: supported bitrates in this band,
 *	an array of nested bitrate attributes
 */
enum nl80211_band_attr {
	__NL80211_BAND_ATTR_INVALID,
	NL80211_BAND_ATTR_FREQS,
	NL80211_BAND_ATTR_RATES,

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

/**
 * enum nl80211_frequency_attr - frequency attributes
 * @NL80211_FREQUENCY_ATTR_FREQ: Frequency in MHz
 * @NL80211_FREQUENCY_ATTR_DISABLED: Channel is disabled in current
 *	regulatory domain.
 * @NL80211_FREQUENCY_ATTR_PASSIVE_SCAN: Only passive scanning is
 *	permitted on this channel in current regulatory domain.
 * @NL80211_FREQUENCY_ATTR_NO_IBSS: IBSS networks are not permitted
 *	on this channel in current regulatory domain.
 * @NL80211_FREQUENCY_ATTR_RADAR: Radar detection is mandatory
 *	on this channel in current regulatory domain.
 */
enum nl80211_frequency_attr {
	__NL80211_FREQUENCY_ATTR_INVALID,
	NL80211_FREQUENCY_ATTR_FREQ,
	NL80211_FREQUENCY_ATTR_DISABLED,
	NL80211_FREQUENCY_ATTR_PASSIVE_SCAN,
	NL80211_FREQUENCY_ATTR_NO_IBSS,
	NL80211_FREQUENCY_ATTR_RADAR,

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

/**
 * enum nl80211_bitrate_attr - bitrate attributes
 * @NL80211_BITRATE_ATTR_RATE: Bitrate in units of 100 kbps
 * @NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE: Short preamble supported
 *	in 2.4 GHz band.
 */
enum nl80211_bitrate_attr {
	__NL80211_BITRATE_ATTR_INVALID,
	NL80211_BITRATE_ATTR_RATE,
	NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE,

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

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

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

#endif /* __LINUX_NL80211_H */