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/* -*- mode: C; tab-width: 4; indent-tabs-mode: nil -*- */
/* vi: set expandtab shiftwidth=4 tabstop=4 textwidth=78: */
/**
* Interface for the wlan network scan routines
*
* Driver interface functions and type declarations for the scan module
* implemented in wlan_scan.c.
*/
#ifndef _WLAN_SCAN_H
#define _WLAN_SCAN_H
#include <net/ieee80211.h>
#include "hostcmd.h"
/**
* @brief Maximum number of channels that can be sent in a setuserscan ioctl
*
* @sa wlan_ioctl_user_scan_cfg
*/
#define WLAN_IOCTL_USER_SCAN_CHAN_MAX 50
//! Infrastructure BSS scan type in wlan_scan_cmd_config
#define WLAN_SCAN_BSS_TYPE_BSS 1
//! Adhoc BSS scan type in wlan_scan_cmd_config
#define WLAN_SCAN_BSS_TYPE_IBSS 2
//! Adhoc or Infrastructure BSS scan type in wlan_scan_cmd_config, no filter
#define WLAN_SCAN_BSS_TYPE_ANY 3
/**
* @brief Structure used internally in the wlan driver to configure a scan.
*
* Sent to the command processing module to configure the firmware
* scan command prepared by libertas_cmd_80211_scan.
*
* @sa wlan_scan_networks
*
*/
struct wlan_scan_cmd_config {
/**
* @brief BSS type to be sent in the firmware command
*
* Field can be used to restrict the types of networks returned in the
* scan. valid settings are:
*
* - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
* - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
* - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
*/
u8 bsstype;
/**
* @brief Specific BSSID used to filter scan results in the firmware
*/
u8 specificBSSID[ETH_ALEN];
/**
* @brief length of TLVs sent in command starting at tlvBuffer
*/
int tlvbufferlen;
/**
* @brief SSID TLV(s) and ChanList TLVs to be sent in the firmware command
*
* @sa TLV_TYPE_CHANLIST, mrvlietypes_chanlistparamset_t
* @sa TLV_TYPE_SSID, mrvlietypes_ssidparamset_t
*/
u8 tlvbuffer[1]; //!< SSID TLV(s) and ChanList TLVs are stored here
};
/**
* @brief IOCTL channel sub-structure sent in wlan_ioctl_user_scan_cfg
*
* Multiple instances of this structure are included in the IOCTL command
* to configure a instance of a scan on the specific channel.
*/
struct wlan_ioctl_user_scan_chan {
u8 channumber; //!< channel Number to scan
u8 radiotype; //!< Radio type: 'B/G' band = 0, 'A' band = 1
u8 scantype; //!< Scan type: Active = 0, Passive = 1
u16 scantime; //!< Scan duration in milliseconds; if 0 default used
};
/**
* @brief IOCTL input structure to configure an immediate scan cmd to firmware
*
* Used in the setuserscan (WLAN_SET_USER_SCAN) private ioctl. Specifies
* a number of parameters to be used in general for the scan as well
* as a channel list (wlan_ioctl_user_scan_chan) for each scan period
* desired.
*
* @sa libertas_set_user_scan_ioctl
*/
struct wlan_ioctl_user_scan_cfg {
/**
* @brief Flag set to keep the previous scan table intact
*
* If set, the scan results will accumulate, replacing any previous
* matched entries for a BSS with the new scan data
*/
u8 keeppreviousscan; //!< Do not erase the existing scan results
/**
* @brief BSS type to be sent in the firmware command
*
* Field can be used to restrict the types of networks returned in the
* scan. valid settings are:
*
* - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
* - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
* - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
*/
u8 bsstype;
/**
* @brief Configure the number of probe requests for active chan scans
*/
u8 numprobes;
/**
* @brief BSSID filter sent in the firmware command to limit the results
*/
u8 specificBSSID[ETH_ALEN];
/**
* @brief SSID filter sent in the firmware command to limit the results
*/
char specificSSID[IW_ESSID_MAX_SIZE + 1];
/**
* @brief Variable number (fixed maximum) of channels to scan up
*/
struct wlan_ioctl_user_scan_chan chanlist[WLAN_IOCTL_USER_SCAN_CHAN_MAX];
};
/**
* @brief Structure used to store information for each beacon/probe response
*/
struct bss_descriptor {
u8 macaddress[ETH_ALEN];
struct WLAN_802_11_SSID ssid;
/* WEP encryption requirement */
u32 privacy;
/* receive signal strength in dBm */
long rssi;
u32 channel;
u16 beaconperiod;
u32 atimwindow;
enum WLAN_802_11_NETWORK_INFRASTRUCTURE inframode;
u8 libertas_supported_rates[WLAN_SUPPORTED_RATES];
int extra_ie;
u8 timestamp[8]; //!< TSF value included in the beacon/probe response
union ieeetypes_phyparamset phyparamset;
union IEEEtypes_ssparamset ssparamset;
struct ieeetypes_capinfo cap;
u8 datarates[WLAN_SUPPORTED_RATES];
__le64 networktsf; //!< TSF timestamp from the current firmware TSF
struct ieeetypes_countryinfofullset countryinfo;
u8 wpa_ie[MAX_WPA_IE_LEN];
size_t wpa_ie_len;
u8 rsn_ie[MAX_WPA_IE_LEN];
size_t rsn_ie_len;
};
extern int libertas_SSID_cmp(struct WLAN_802_11_SSID *ssid1,
struct WLAN_802_11_SSID *ssid2);
extern int libertas_find_SSID_in_list(wlan_adapter * adapter, struct WLAN_802_11_SSID *ssid,
u8 * bssid, int mode);
int libertas_find_best_SSID_in_list(wlan_adapter * adapter, enum WLAN_802_11_NETWORK_INFRASTRUCTURE mode);
extern int libertas_find_BSSID_in_list(wlan_adapter * adapter, u8 * bssid, int mode);
int libertas_find_best_network_SSID(wlan_private * priv,
struct WLAN_802_11_SSID *pSSID,
enum WLAN_802_11_NETWORK_INFRASTRUCTURE preferred_mode,
enum WLAN_802_11_NETWORK_INFRASTRUCTURE *out_mode);
extern int libertas_send_specific_SSID_scan(wlan_private * priv,
struct WLAN_802_11_SSID *prequestedssid,
u8 keeppreviousscan);
extern int libertas_send_specific_BSSID_scan(wlan_private * priv,
u8 * bssid, u8 keeppreviousscan);
extern int libertas_cmd_80211_scan(wlan_private * priv,
struct cmd_ds_command *cmd,
void *pdata_buf);
extern int libertas_ret_80211_scan(wlan_private * priv,
struct cmd_ds_command *resp);
int wlan_scan_networks(wlan_private * priv,
const struct wlan_ioctl_user_scan_cfg * puserscanin);
struct ifreq;
struct iw_point;
struct iw_param;
struct iw_request_info;
extern int libertas_get_scan(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra);
extern int libertas_set_scan(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra);
#endif /* _WLAN_SCAN_H */
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