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- /************************************************************************************
- * include/nuttx/wireless/wireless.h
- * Wireless network IOCTL commands
- *
- * Copyright (C) 2011-2013, 2017-2018 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************************************/
- /* This file includes common definitions to be used in all wireless network drivers
- * (when applicable).
- */
- #ifndef __INCLUDE_NUTTX_WIRELESS_WIRELESS_H
- #define __INCLUDE_NUTTX_WIRELESS_WIRELESS_H
- /************************************************************************************
- * Included Files
- ************************************************************************************/
- #include <nuttx/config.h>
- #include <sys/socket.h>
- #include <stdint.h>
- #include <net/if.h>
- #include <nuttx/fs/ioctl.h>
- /************************************************************************************
- * Pre-processor Definitions
- ************************************************************************************/
- /* Network Driver IOCTL Commands ****************************************************/
- /* Use of these IOCTL commands requires a socket descriptor created by the socket()
- * interface.
- */
- /* Wireless identification */
- #define SIOCSIWCOMMIT _WLIOC(0x0000) /* Commit pending changes to driver */
- #define SIOCGIWNAME _WLIOC(0x0001) /* Get name of wireless protocol */
- /* Basic Operations */
- #define SIOCSIWNWID _WLIOC(0x0002) /* Set network ID (pre-802.11) */
- #define SIOCGIWNWID _WLIOC(0x0003) /* Get network ID (the cell) */
- #define SIOCSIWFREQ _WLIOC(0x0004) /* Set channel/frequency (Hz) */
- #define SIOCGIWFREQ _WLIOC(0x0005) /* Get channel/frequency (Hz) */
- #define SIOCSIWMODE _WLIOC(0x0006) /* Set operation mode */
- #define SIOCGIWMODE _WLIOC(0x0007) /* Get operation mode */
- #define SIOCSIWSENS _WLIOC(0x0008) /* Set sensitivity (dBm) */
- #define SIOCGIWSENS _WLIOC(0x0009) /* Get sensitivity (dBm) */
- /* Informational */
- #define SIOCSIWRANGE _WLIOC(0x000a) /* Unused */
- #define SIOCGIWRANGE _WLIOC(0x000b) /* Get range of parameters */
- #define SIOCSIWPRIV _WLIOC(0x000c) /* Unused */
- #define SIOCGIWPRIV _WLIOC(0x000d) /* Get private ioctl interface info */
- #define SIOCSIWSTATS _WLIOC(0x000e) /* Unused */
- #define SIOCGIWSTATS _WLIOC(0x000f) /* Get wireless stats */
- /* Spy support (statistics per MAC address - used for Mobile IP support) */
- #define SIOCSIWSPY _WLIOC(0x0010) /* Set spy addresses */
- #define SIOCGIWSPY _WLIOC(0x0011) /* Get spy info (quality of link) */
- #define SIOCSIWTHRSPY _WLIOC(0x0012) /* Set spy threshold (spy event) */
- #define SIOCGIWTHRSPY _WLIOC(0x0013) /* Get spy threshold */
- /* Access point manipulation */
- #define SIOCSIWAP _WLIOC(0x0014) /* Set access point MAC addresses */
- #define SIOCGIWAP _WLIOC(0x0015) /* Get access point MAC addresses */
- /* 0x0016: See SIOCSIWMLME */
- #define SIOCGIWAPLIST _WLIOC(0x0017) /* Deprecated in favor of scanning */
- #define SIOCSIWSCAN _WLIOC(0x0018) /* Trigger scanning (list cells) */
- #define SIOCGIWSCAN _WLIOC(0x0019) /* Get scanning results */
- /* 802.11 specific support */
- #define SIOCSIWESSID _WLIOC(0x001a) /* Set ESSID (network name) */
- #define SIOCGIWESSID _WLIOC(0x001b) /* Get ESSID */
- #define SIOCSIWNICKN _WLIOC(0x001c) /* Set node name/nickname */
- #define SIOCGIWNICKN _WLIOC(0x001d) /* Get node name/nickname */
- #define SIOCSIWRATE _WLIOC(0x0020) /* Set default bit rate (bps) */
- #define SIOCGIWRATE _WLIOC(0x0021) /* Get default bit rate (bps) */
- #define SIOCSIWRTS _WLIOC(0x0022) /* Set RTS/CTS threshold (bytes) */
- #define SIOCGIWRTS _WLIOC(0x0023) /* Get RTS/CTS threshold (bytes) */
- #define SIOCSIWFRAG _WLIOC(0x0024) /* Set fragmentation thr (bytes) */
- #define SIOCGIWFRAG _WLIOC(0x0025) /* Get fragmentation thr (bytes) */
- #define SIOCSIWTXPOW _WLIOC(0x0026) /* Set transmit power (dBm) */
- #define SIOCGIWTXPOW _WLIOC(0x0027) /* Get transmit power (dBm) */
- #define SIOCSIWRETRY _WLIOC(0x0028) /* Set retry limits and lifetime */
- #define SIOCGIWRETRY _WLIOC(0x0029) /* Get retry limits and lifetime */
- /* Encoding */
- #define SIOCSIWENCODE _WLIOC(0x002a) /* Set encoding token & mode */
- #define SIOCGIWENCODE _WLIOC(0x002b) /* Get encoding token & mode */
- /* Power saving */
- #define SIOCSIWPOWER _WLIOC(0x002c) /* Set Power Management settings */
- #define SIOCGIWPOWER _WLIOC(0x002d) /* Get Power Management settings */
- /* WPA : Generic IEEE 802.11 information element */
- #define SIOCSIWGENIE _WLIOC(0x0030) /* Set generic IE */
- #define SIOCGIWGENIE _WLIOC(0x0031) /* Get generic IE */
- /* WPA : IEEE 802.11 MLME requests */
- #define SIOCSIWMLME _WLIOC(0x0016) /* Request MLME operation */
- /* WPA : Authentication mode parameters */
- #define SIOCSIWAUTH _WLIOC(0x0032) /* Set authentication mode params */
- #define SIOCGIWAUTH _WLIOC(0x0033) /* Get authentication mode params */
- /* WPA : Extended version of encoding configuration */
- #define SIOCSIWENCODEEXT _WLIOC(0x0034) /* Set encoding token & mode */
- #define SIOCGIWENCODEEXT _WLIOC(0x0035) /* Get encoding token & mode */
- /* WPA2 : PMKSA cache management */
- #define SIOCSIWPMKSA _WLIOC(0x0036) /* PMKSA cache operation */
- /* Device-specific network IOCTL commands ******************************************/
- #define WL_NETFIRST 0x0000 /* First network command */
- #define WL_NNETCMDS 0x0037 /* Number of network commands */
- /* Reserved for Bluetooth network devices (see bt_ioctls.h) */
- #define WL_BLUETOOTHFIRST (WL_NETFIRST + WL_NNETCMDS)
- #define WL_BLUETOOTHCMDS (26)
- #define WL_IBLUETOOTHCMD(cmd) (_WLIOCVALID(cmd) && \
- _IOC_NR(cmd) >= WL_BLUETOOTHFIRST && \
- _IOC_NR(cmd) < (WL_BLUETOOTHFIRST + WL_BLUETOOTHCMDS))
- /* Reserved for IEEE802.15.4 wireless network devices
- * NOTE: Not used. Currently logic uses IOCTL commands from the IEEE802.15.4
- * character driver space.
- */
- #define WL_802154FIRST (WL_BLUETOOTHFIRST + WL_BLUETOOTHCMDS)
- #define WL_N802154CMDS (3)
- #define WL_IS802154CMD(cmd) (_WLIOCVALID(cmd) && \
- _IOC_NR(cmd) >= WL_802154FIRST && \
- _IOC_NR(cmd) < (WL_802154FIRST + WL_N802154CMDS))
- /* Reserved for network packet radio network devices */
- #define WL_PKTRADIOFIRST (WL_802154FIRST + WL_N802154CMDS)
- #define WL_NPKTRADIOCMDS (3)
- #define WL_ISPKTRADIOCMD(cmd) (_WLIOCVALID(cmd) && \
- _IOC_NR(cmd) >= WL_PKTRADIOFIRST && \
- _IOC_NR(cmd) < (WL_PKTRADIOFIRST + WL_NPKTRADIOCMDS))
- /* ------------------------------ WIRELESS EVENTS -------------------------------- */
- /* Those are *NOT* ioctls, do not issue request on them !!! */
- /* Most events use the same identifier as ioctl requests */
- #define IWEVTXDROP 0x8c00 /* Packet dropped to excessive retry */
- #define IWEVQUAL 0x8c01 /* Quality part of statistics (scan) */
- #define IWEVCUSTOM 0x8c02 /* Driver specific ascii string */
- #define IWEVREGISTERED 0x8c03 /* Discovered a new node (AP mode) */
- #define IWEVEXPIRED 0x8c04 /* Expired a node (AP mode) */
- #define IWEVGENIE 0x8c05 /* Generic IE (WPA, RSN, WMM, ..)
- * (scan results); This includes id and
- * length fields. One IWEVGENIE may
- * contain more than one IE. Scan
- * results may contain one or more
- * IWEVGENIE events. */
- #define IWEVMICHAELMICFAILURE 0x8c06 /* Michael MIC failure
- * (struct iw_michaelmicfailure)
- */
- #define IWEVASSOCREQIE 0x8c07 /* IEs used in (Re)Association Request.
- * The data includes id and length
- * fields and may contain more than one
- * IE. This event is required in
- * Managed mode if the driver
- * generates its own WPA/RSN IE. This
- * should be sent just before
- * IWEVREGISTERED event for the
- * association. */
- #define IWEVASSOCRESPIE 0x8c08 /* IEs used in (Re)Association
- * Response. The data includes id and
- * length fields and may contain more
- * than one IE. This may be sent
- * between IWEVASSOCREQIE and
- * IWEVREGISTERED events for the
- * association. */
- #define IWEVPMKIDCAND 0x8c09 /* PMKID candidate for RSN
- * pre-authentication
- * (struct iw_pmkid_cand) */
- #define IWEVFIRST 0x8c00
- #define IW_EVENT_IDX(cmd) ((cmd) - IWEVFIRST)
- /* Other Common Wireless Definitions ***********************************************/
- /* Maximum size of the ESSID and NICKN strings */
- #define IW_ESSID_MAX_SIZE 32
- /* Modes of operation */
- #define IW_MODE_AUTO 0 /* Let the driver decides */
- #define IW_MODE_ADHOC 1 /* Single cell network */
- #define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */
- #define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */
- #define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */
- #define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */
- #define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */
- #define IW_MODE_MESH 7 /* Mesh (IEEE 802.11s) network */
- /* Statistics flags (bitmask in updated) */
- #define IW_QUAL_QUAL_UPDATED 0x01 /* Value was updated since last read */
- #define IW_QUAL_LEVEL_UPDATED 0x02
- #define IW_QUAL_NOISE_UPDATED 0x04
- #define IW_QUAL_ALL_UPDATED 0x07
- #define IW_QUAL_DBM 0x08 /* Level + Noise are dBm */
- #define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */
- #define IW_QUAL_LEVEL_INVALID 0x20
- #define IW_QUAL_NOISE_INVALID 0x40
- #define IW_QUAL_RCPI 0x80 /* Level + Noise are 802.11k RCPI */
- #define IW_QUAL_ALL_INVALID 0x70
- /* Flags for encoding (along with the token) */
- #define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */
- #define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */
- #define IW_ENCODE_MODE 0xF000 /* Modes defined below */
- #define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */
- #define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */
- #define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */
- #define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */
- #define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
- #define IW_ENCODE_TEMP 0x0400 /* Temporary key */
- /* Frequency flags */
- #define IW_FREQ_AUTO 0 /* Let the driver decides */
- #define IW_FREQ_FIXED 1 /* Force a specific value */
- #define IW_MAX_FREQUENCIES 32 /* Max. frequencies in struct iw_range */
- /* Transmit Power flags available */
- #define IW_TXPOW_TYPE 0x00ff /* Type of value */
- # define IW_TXPOW_DBM 0x0000 /* Value is in dBm */
- # define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
- # define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */
- #define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */
- /* Scan-related */
- /* Scanning request flags */
- #define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */
- #define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */
- #define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */
- #define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */
- #define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */
- #define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */
- #define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */
- #define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */
- #define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */
- /* struct iw_scan_req scan_type */
- #define IW_SCAN_TYPE_ACTIVE 0
- #define IW_SCAN_TYPE_PASSIVE 1
- /* Maximum size of returned data */
- #define IW_SCAN_MAX_DATA 4096 /* In bytes */
- /* Scan capability flags - in (struct iw_range *)->scan_capa */
- #define IW_SCAN_CAPA_NONE 0x00
- #define IW_SCAN_CAPA_ESSID 0x01
- #define IW_SCAN_CAPA_BSSID 0x02
- #define IW_SCAN_CAPA_CHANNEL 0x04
- #define IW_SCAN_CAPA_MODE 0x08
- #define IW_SCAN_CAPA_RATE 0x10
- #define IW_SCAN_CAPA_TYPE 0x20
- #define IW_SCAN_CAPA_TIME 0x40
- /* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
- #define IW_AUTH_INDEX 0x0FFF
- #define IW_AUTH_FLAGS 0xF000
- /* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
- * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
- * parameter that is being set/get to; value will be read/written to
- * struct iw_param value field)
- */
- #define IW_AUTH_WPA_VERSION 0
- #define IW_AUTH_CIPHER_PAIRWISE 1
- #define IW_AUTH_CIPHER_GROUP 2
- #define IW_AUTH_KEY_MGMT 3
- #define IW_AUTH_TKIP_COUNTERMEASURES 4
- #define IW_AUTH_DROP_UNENCRYPTED 5
- #define IW_AUTH_80211_AUTH_ALG 6
- #define IW_AUTH_WPA_ENABLED 7
- #define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
- #define IW_AUTH_ROAMING_CONTROL 9
- #define IW_AUTH_PRIVACY_INVOKED 10
- #define IW_AUTH_CIPHER_GROUP_MGMT 11
- #define IW_AUTH_MFP 12
- /* IW_AUTH_WPA_VERSION values (bit field) */
- #define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
- #define IW_AUTH_WPA_VERSION_WPA 0x00000002
- #define IW_AUTH_WPA_VERSION_WPA2 0x00000004
- /* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
- #define IW_AUTH_CIPHER_NONE 0x00000001
- #define IW_AUTH_CIPHER_WEP40 0x00000002
- #define IW_AUTH_CIPHER_TKIP 0x00000004
- #define IW_AUTH_CIPHER_CCMP 0x00000008
- #define IW_AUTH_CIPHER_WEP104 0x00000010
- #define IW_AUTH_CIPHER_AES_CMAC 0x00000020
- /* IW_AUTH_KEY_MGMT values (bit field) */
- #define IW_AUTH_KEY_MGMT_802_1X 1
- #define IW_AUTH_KEY_MGMT_PSK 2
- /* IW_AUTH_80211_AUTH_ALG values (bit field) */
- #define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
- #define IW_AUTH_ALG_SHARED_KEY 0x00000002
- #define IW_AUTH_ALG_LEAP 0x00000004
- /* IW_AUTH_ROAMING_CONTROL values */
- #define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */
- #define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming
- * control */
- /* SIOCSIWENCODEEXT definitions */
- #define IW_ENCODE_SEQ_MAX_SIZE 8
- /* struct iw_encode_ext ->alg */
- #define IW_ENCODE_ALG_NONE 0
- #define IW_ENCODE_ALG_WEP 1
- #define IW_ENCODE_ALG_TKIP 2
- #define IW_ENCODE_ALG_CCMP 3
- #define IW_ENCODE_ALG_PMK 4
- #define IW_ENCODE_ALG_AES_CMAC 5
- /************************************************************************************
- * Public Types
- ************************************************************************************/
- /* TODO:
- *
- * - Add types for statistics (struct iw_statistics and related)
- * - Add struct iw_range for use with IOCTL commands that need exchange mode data
- * that could not fit in iwreq.
- * - Private IOCTL data support (struct iw_priv_arg)
- * - Quality
- * - WPA support.
- * - Wireless events.
- * - Various flag definitions.
- *
- * These future additions will all need to be compatible with BSD/Linux definitions.
- */
- /* Generic format for most parameters that fit in a int32_t */
- struct iw_param
- {
- int32_t value; /* The value of the parameter itself */
- uint8_t fixed; /* Hardware should not use auto select */
- uint8_t disabled; /* Disable the feature */
- uint16_t flags; /* Optional flags */
- };
- /* Large data reference. For all data larger than 16 octets, we need to use a
- * pointer to memory allocated in user space.
- */
- struct iw_point
- {
- FAR void *pointer; /* Pointer to the data (in user space) */
- uint16_t length; /* number of fields or size in bytes */
- uint16_t flags; /* Optional flags */
- };
- /* For numbers lower than 10^9, we encode the number in 'm' and set 'e' to 0
- * For number greater than 10^9, we divide it by the lowest power of 10 to
- * get 'm' lower than 10^9, with 'm'= f / (10^'e')...
- * The power of 10 is in 'e', the result of the division is in 'm'.
- */
- struct iw_freq
- {
- int32_t m; /* Mantissa */
- int16_t e; /* Exponent */
- uint8_t i; /* List index (when in range struct) */
- uint8_t flags; /* Flags (fixed/auto) */
- };
- /* Quality of the link */
- struct iw_quality
- {
- uint8_t qual; /* link quality (%retries, SNR,
- * %missed beacons or better...) */
- uint8_t level; /* signal level (dBm) */
- uint8_t noise; /* noise level (dBm) */
- uint8_t updated; /* Flags to know if updated */
- };
- /* This union defines the data payload of an ioctl, and is used in struct iwreq
- * below.
- */
- union iwreq_data
- {
- char name[IFNAMSIZ]; /* Network interface name */
- struct iw_point essid; /* Extended network name */
- struct iw_param nwid; /* Network id (or domain - the cell) */
- struct iw_freq freq; /* frequency or channel :
- * 0-1000 = channel
- * > 1000 = frequency in Hz */
- struct iw_param sens; /* signal level threshold */
- struct iw_param bitrate; /* default bit rate */
- struct iw_param txpower; /* default transmit power */
- struct iw_param rts; /* RTS threshold threshold */
- struct iw_param frag; /* Fragmentation threshold */
- uint32_t mode; /* Operation mode */
- struct iw_param retry; /* Retry limits & lifetime */
- struct iw_point encoding; /* Encoding stuff : tokens */
- struct iw_param power; /* PM duration/timeout */
- struct iw_quality qual; /* Quality part of statistics */
- struct sockaddr ap_addr; /* Access point address */
- struct sockaddr addr; /* Destination address (hw/mac) */
- struct iw_param param; /* Other small parameters */
- struct iw_point data; /* Other large parameters */
- };
- /* This is the structure used to exchange data in wireless IOCTLs. This structure
- * is the same as 'struct ifreq', but defined for use with wireless IOCTLs.
- */
- struct iwreq
- {
- char ifr_name[IFNAMSIZ]; /* Interface name, e.g. "eth0" */
- union iwreq_data u; /* Data payload */
- };
- /* Range of parameters (currently only frequencies) */
- struct iw_range
- {
- uint8_t num_frequency; /* Number of frequencies in the freq[] list */
- struct iw_freq freq[IW_MAX_FREQUENCIES];
- };
- /* A Wireless Event. */
- struct iw_event
- {
- uint16_t len; /* Real length of ata */
- uint16_t cmd; /* Wireless IOCTL command*/
- union iwreq_data u; /* Fixed IOCTL payload */
- };
- /* WPA support */
- struct iw_encode_ext
- {
- uint32_t ext_flags; /* IW_ENCODE_EXT_* */
- uint8_t tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
- uint8_t rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
- struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
- * (group) keys or unicast address for
- * individual keys */
- uint16_t alg; /* IW_ENCODE_ALG_* */
- uint16_t key_len;
- uint8_t key[0];
- };
- /* Optional data for scan request
- *
- * Note: these optional parameters are controlling parameters for the
- * scanning behavior, these do not apply to getting scan results
- * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
- * provide a merged results with all BSSes even if the previous scan
- * request limited scanning to a subset, e.g., by specifying an SSID.
- * Especially, scan results are required to include an entry for the
- * current BSS if the driver is in Managed mode and associated with an AP.
- */
- struct iw_scan_req
- {
- uint8_t scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
- uint8_t essid_len;
- uint8_t num_channels; /* num entries in channel_list;
- * 0 = scan all allowed channels */
- uint8_t flags; /* reserved as padding; use zero, this may
- * be used in the future for adding flags
- * to request different scan behavior */
- struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
- * individual address of a specific BSS */
- /* Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
- * the current ESSID. This allows scan requests for specific ESSID
- * without having to change the current ESSID and potentially breaking
- * the current association.
- */
- uint8_t essid[IW_ESSID_MAX_SIZE];
- /* Optional parameters for changing the default scanning behavior.
- * These are based on the MLME-SCAN.request from IEEE Std 802.11.
- * TU is 1.024 ms. If these are set to 0, driver is expected to use
- * reasonable default values. min_channel_time defines the time that
- * will be used to wait for the first reply on each channel. If no
- * replies are received, next channel will be scanned after this. If
- * replies are received, total time waited on the channel is defined by
- * max_channel_time.
- */
- uint32_t min_channel_time; /* in TU */
- uint32_t max_channel_time; /* in TU */
- struct iw_freq channel_list[IW_MAX_FREQUENCIES];
- };
- #endif /* __INCLUDE_NUTTX_WIRELESS_WIRELESS_H */
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