216 lines
6.1 KiB
C
216 lines
6.1 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 specificBSSID[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 Flag set to keep the previous scan table intact
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*
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* If set, the scan results will accumulate, replacing any previous
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* matched entries for a BSS with the new scan data
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*/
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u8 keeppreviousscan; //!< Do not erase the existing scan results
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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 specificBSSID[ETH_ALEN];
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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 specificSSID[IW_ESSID_MAX_SIZE + 1];
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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 macaddress[ETH_ALEN];
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struct WLAN_802_11_SSID ssid;
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/* WEP encryption requirement */
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u32 privacy;
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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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int extra_ie;
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u8 timestamp[8]; //!< TSF value included in the beacon/probe response
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union ieeetypes_phyparamset phyparamset;
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union IEEEtypes_ssparamset ssparamset;
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struct ieeetypes_capinfo cap;
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u8 datarates[WLAN_SUPPORTED_RATES];
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__le64 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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};
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extern int libertas_SSID_cmp(struct WLAN_802_11_SSID *ssid1,
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struct WLAN_802_11_SSID *ssid2);
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extern int libertas_find_SSID_in_list(wlan_adapter * adapter, struct WLAN_802_11_SSID *ssid,
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u8 * bssid, u8 mode);
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int libertas_find_best_SSID_in_list(wlan_adapter * adapter, u8 mode);
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extern int libertas_find_BSSID_in_list(wlan_adapter * adapter, u8 * bssid, u8 mode);
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int libertas_find_best_network_SSID(wlan_private * priv,
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struct WLAN_802_11_SSID *pSSID,
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u8 preferred_mode, u8 *out_mode);
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extern int libertas_send_specific_SSID_scan(wlan_private * priv,
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struct WLAN_802_11_SSID *prequestedssid,
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u8 keeppreviousscan);
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extern int libertas_send_specific_BSSID_scan(wlan_private * priv,
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u8 * bssid, u8 keeppreviousscan);
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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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