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1e838bf31c
With this patch, scanning with mshX interface will only return mesh networks. To differentiate them, a specific mesh IE in beacons/probe responses is used. This IE has been introduced in firmware release 5.110.14. Note: Even though there can be at most a single mesh per channel, this scan might return several networks in the same channel. If all nodes in a mesh network are associated to an AP, they won't produce beacons/probe responses, thus the network will not be listed. This will be fixed in future firmware releases. Scan on ethX interface is not filtered, so it will list both mesh and non-mesh networks. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
220 lines
6.0 KiB
C
220 lines
6.0 KiB
C
/**
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* Interface for the wlan network scan routines
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*
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* Driver interface functions and type declarations for the scan module
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* implemented in wlan_scan.c.
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*/
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#ifndef _WLAN_SCAN_H
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#define _WLAN_SCAN_H
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#include <net/ieee80211.h>
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#include "hostcmd.h"
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/**
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* @brief Maximum number of channels that can be sent in a setuserscan ioctl
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*
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* @sa wlan_ioctl_user_scan_cfg
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*/
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#define WLAN_IOCTL_USER_SCAN_CHAN_MAX 50
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//! Infrastructure BSS scan type in wlan_scan_cmd_config
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#define WLAN_SCAN_BSS_TYPE_BSS 1
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//! Adhoc BSS scan type in wlan_scan_cmd_config
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#define WLAN_SCAN_BSS_TYPE_IBSS 2
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//! Adhoc or Infrastructure BSS scan type in wlan_scan_cmd_config, no filter
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#define WLAN_SCAN_BSS_TYPE_ANY 3
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/**
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* @brief Structure used internally in the wlan driver to configure a scan.
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*
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* Sent to the command processing module to configure the firmware
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* scan command prepared by libertas_cmd_80211_scan.
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*
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* @sa wlan_scan_networks
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*
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*/
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struct wlan_scan_cmd_config {
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/**
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* @brief BSS type to be sent in the firmware command
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*
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* Field can be used to restrict the types of networks returned in the
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* scan. valid settings are:
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*
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* - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
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* - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
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* - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
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*/
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u8 bsstype;
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/**
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* @brief Specific BSSID used to filter scan results in the firmware
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*/
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u8 bssid[ETH_ALEN];
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/**
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* @brief length of TLVs sent in command starting at tlvBuffer
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*/
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int tlvbufferlen;
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/**
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* @brief SSID TLV(s) and ChanList TLVs to be sent in the firmware command
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*
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* @sa TLV_TYPE_CHANLIST, mrvlietypes_chanlistparamset_t
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* @sa TLV_TYPE_SSID, mrvlietypes_ssidparamset_t
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*/
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u8 tlvbuffer[1]; //!< SSID TLV(s) and ChanList TLVs are stored here
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};
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/**
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* @brief IOCTL channel sub-structure sent in wlan_ioctl_user_scan_cfg
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*
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* Multiple instances of this structure are included in the IOCTL command
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* to configure a instance of a scan on the specific channel.
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*/
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struct wlan_ioctl_user_scan_chan {
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u8 channumber; //!< channel Number to scan
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u8 radiotype; //!< Radio type: 'B/G' band = 0, 'A' band = 1
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u8 scantype; //!< Scan type: Active = 0, Passive = 1
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u16 scantime; //!< Scan duration in milliseconds; if 0 default used
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};
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/**
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* @brief IOCTL input structure to configure an immediate scan cmd to firmware
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*
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* Used in the setuserscan (WLAN_SET_USER_SCAN) private ioctl. Specifies
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* a number of parameters to be used in general for the scan as well
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* as a channel list (wlan_ioctl_user_scan_chan) for each scan period
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* desired.
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*
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* @sa libertas_set_user_scan_ioctl
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*/
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struct wlan_ioctl_user_scan_cfg {
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/**
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* @brief BSS type to be sent in the firmware command
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*
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* Field can be used to restrict the types of networks returned in the
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* scan. valid settings are:
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*
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* - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
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* - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
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* - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
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*/
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u8 bsstype;
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/**
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* @brief Configure the number of probe requests for active chan scans
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*/
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u8 numprobes;
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/**
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* @brief BSSID filter sent in the firmware command to limit the results
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*/
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u8 bssid[ETH_ALEN];
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/* Clear existing scan results matching this BSSID */
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u8 clear_bssid;
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/**
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* @brief SSID filter sent in the firmware command to limit the results
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*/
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char ssid[IW_ESSID_MAX_SIZE];
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u8 ssid_len;
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/* Clear existing scan results matching this SSID */
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u8 clear_ssid;
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/**
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* @brief Variable number (fixed maximum) of channels to scan up
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*/
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struct wlan_ioctl_user_scan_chan chanlist[WLAN_IOCTL_USER_SCAN_CHAN_MAX];
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};
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/**
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* @brief Structure used to store information for each beacon/probe response
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*/
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struct bss_descriptor {
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u8 bssid[ETH_ALEN];
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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u16 capability;
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/* receive signal strength in dBm */
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long rssi;
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u32 channel;
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u16 beaconperiod;
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u32 atimwindow;
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u8 mode;
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u8 libertas_supported_rates[WLAN_SUPPORTED_RATES];
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__le64 timestamp; //!< TSF value included in the beacon/probe response
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unsigned long last_scanned;
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union ieeetypes_phyparamset phyparamset;
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union IEEEtypes_ssparamset ssparamset;
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u8 datarates[WLAN_SUPPORTED_RATES];
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u64 networktsf; //!< TSF timestamp from the current firmware TSF
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struct ieeetypes_countryinfofullset countryinfo;
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u8 wpa_ie[MAX_WPA_IE_LEN];
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size_t wpa_ie_len;
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u8 rsn_ie[MAX_WPA_IE_LEN];
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size_t rsn_ie_len;
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u8 mesh;
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struct list_head list;
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};
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extern int libertas_ssid_cmp(u8 *ssid1, u8 ssid1_len, u8 *ssid2, u8 ssid2_len);
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struct bss_descriptor * libertas_find_ssid_in_list(wlan_adapter * adapter,
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u8 *ssid, u8 ssid_len, u8 * bssid, u8 mode,
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int channel);
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struct bss_descriptor * libertas_find_best_ssid_in_list(wlan_adapter * adapter,
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u8 mode);
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extern struct bss_descriptor * libertas_find_bssid_in_list(wlan_adapter * adapter,
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u8 * bssid, u8 mode);
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int libertas_find_best_network_ssid(wlan_private * priv, u8 *out_ssid,
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u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode);
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extern int libertas_send_specific_ssid_scan(wlan_private * priv, u8 *ssid,
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u8 ssid_len, u8 clear_ssid);
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extern int libertas_send_specific_bssid_scan(wlan_private * priv,
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u8 * bssid, u8 clear_bssid);
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extern int libertas_cmd_80211_scan(wlan_private * priv,
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struct cmd_ds_command *cmd,
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void *pdata_buf);
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extern int libertas_ret_80211_scan(wlan_private * priv,
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struct cmd_ds_command *resp);
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int wlan_scan_networks(wlan_private * priv,
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const struct wlan_ioctl_user_scan_cfg * puserscanin,
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int full_scan);
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struct ifreq;
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struct iw_point;
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struct iw_param;
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struct iw_request_info;
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extern int libertas_get_scan(struct net_device *dev, struct iw_request_info *info,
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struct iw_point *dwrq, char *extra);
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extern int libertas_set_scan(struct net_device *dev, struct iw_request_info *info,
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struct iw_param *vwrq, char *extra);
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#endif /* _WLAN_SCAN_H */
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