2 * Interface for the wlan network scan routines
4 * Driver interface functions and type declarations for the scan module
5 * implemented in wlan_scan.c.
10 #include <net/ieee80211.h>
14 * @brief Maximum number of channels that can be sent in a setuserscan ioctl
16 * @sa wlan_ioctl_user_scan_cfg
18 #define WLAN_IOCTL_USER_SCAN_CHAN_MAX 50
20 //! Infrastructure BSS scan type in wlan_scan_cmd_config
21 #define WLAN_SCAN_BSS_TYPE_BSS 1
23 //! Adhoc BSS scan type in wlan_scan_cmd_config
24 #define WLAN_SCAN_BSS_TYPE_IBSS 2
26 //! Adhoc or Infrastructure BSS scan type in wlan_scan_cmd_config, no filter
27 #define WLAN_SCAN_BSS_TYPE_ANY 3
30 * @brief Structure used internally in the wlan driver to configure a scan.
32 * Sent to the command processing module to configure the firmware
33 * scan command prepared by libertas_cmd_80211_scan.
35 * @sa wlan_scan_networks
38 struct wlan_scan_cmd_config
{
40 * @brief BSS type to be sent in the firmware command
42 * Field can be used to restrict the types of networks returned in the
43 * scan. valid settings are:
45 * - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
46 * - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
47 * - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
52 * @brief Specific BSSID used to filter scan results in the firmware
54 u8 specificBSSID
[ETH_ALEN
];
57 * @brief length of TLVs sent in command starting at tlvBuffer
62 * @brief SSID TLV(s) and ChanList TLVs to be sent in the firmware command
64 * @sa TLV_TYPE_CHANLIST, mrvlietypes_chanlistparamset_t
65 * @sa TLV_TYPE_SSID, mrvlietypes_ssidparamset_t
67 u8 tlvbuffer
[1]; //!< SSID TLV(s) and ChanList TLVs are stored here
71 * @brief IOCTL channel sub-structure sent in wlan_ioctl_user_scan_cfg
73 * Multiple instances of this structure are included in the IOCTL command
74 * to configure a instance of a scan on the specific channel.
76 struct wlan_ioctl_user_scan_chan
{
77 u8 channumber
; //!< channel Number to scan
78 u8 radiotype
; //!< Radio type: 'B/G' band = 0, 'A' band = 1
79 u8 scantype
; //!< Scan type: Active = 0, Passive = 1
80 u16 scantime
; //!< Scan duration in milliseconds; if 0 default used
84 * @brief IOCTL input structure to configure an immediate scan cmd to firmware
86 * Used in the setuserscan (WLAN_SET_USER_SCAN) private ioctl. Specifies
87 * a number of parameters to be used in general for the scan as well
88 * as a channel list (wlan_ioctl_user_scan_chan) for each scan period
91 * @sa libertas_set_user_scan_ioctl
93 struct wlan_ioctl_user_scan_cfg
{
96 * @brief Flag set to keep the previous scan table intact
98 * If set, the scan results will accumulate, replacing any previous
99 * matched entries for a BSS with the new scan data
101 u8 keeppreviousscan
; //!< Do not erase the existing scan results
104 * @brief BSS type to be sent in the firmware command
106 * Field can be used to restrict the types of networks returned in the
107 * scan. valid settings are:
109 * - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
110 * - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
111 * - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
116 * @brief Configure the number of probe requests for active chan scans
121 * @brief BSSID filter sent in the firmware command to limit the results
123 u8 specificBSSID
[ETH_ALEN
];
126 * @brief SSID filter sent in the firmware command to limit the results
128 char specificSSID
[IW_ESSID_MAX_SIZE
+ 1];
131 * @brief Variable number (fixed maximum) of channels to scan up
133 struct wlan_ioctl_user_scan_chan chanlist
[WLAN_IOCTL_USER_SCAN_CHAN_MAX
];
137 * @brief Structure used to store information for each beacon/probe response
139 struct bss_descriptor
{
140 u8 macaddress
[ETH_ALEN
];
142 struct WLAN_802_11_SSID ssid
;
144 /* WEP encryption requirement */
147 /* receive signal strength in dBm */
156 enum WLAN_802_11_NETWORK_INFRASTRUCTURE inframode
;
157 u8 libertas_supported_rates
[WLAN_SUPPORTED_RATES
];
161 u8 timestamp
[8]; //!< TSF value included in the beacon/probe response
162 union ieeetypes_phyparamset phyparamset
;
163 union IEEEtypes_ssparamset ssparamset
;
164 struct ieeetypes_capinfo cap
;
165 u8 datarates
[WLAN_SUPPORTED_RATES
];
167 __le64 networktsf
; //!< TSF timestamp from the current firmware TSF
169 struct ieeetypes_countryinfofullset countryinfo
;
171 u8 wpa_ie
[MAX_WPA_IE_LEN
];
173 u8 rsn_ie
[MAX_WPA_IE_LEN
];
177 extern int libertas_SSID_cmp(struct WLAN_802_11_SSID
*ssid1
,
178 struct WLAN_802_11_SSID
*ssid2
);
179 extern int libertas_find_SSID_in_list(wlan_adapter
* adapter
, struct WLAN_802_11_SSID
*ssid
,
180 u8
* bssid
, int mode
);
181 int libertas_find_best_SSID_in_list(wlan_adapter
* adapter
, enum WLAN_802_11_NETWORK_INFRASTRUCTURE mode
);
182 extern int libertas_find_BSSID_in_list(wlan_adapter
* adapter
, u8
* bssid
, int mode
);
184 int libertas_find_best_network_SSID(wlan_private
* priv
,
185 struct WLAN_802_11_SSID
*pSSID
,
186 enum WLAN_802_11_NETWORK_INFRASTRUCTURE preferred_mode
,
187 enum WLAN_802_11_NETWORK_INFRASTRUCTURE
*out_mode
);
189 extern int libertas_send_specific_SSID_scan(wlan_private
* priv
,
190 struct WLAN_802_11_SSID
*prequestedssid
,
191 u8 keeppreviousscan
);
192 extern int libertas_send_specific_BSSID_scan(wlan_private
* priv
,
193 u8
* bssid
, u8 keeppreviousscan
);
195 extern int libertas_cmd_80211_scan(wlan_private
* priv
,
196 struct cmd_ds_command
*cmd
,
199 extern int libertas_ret_80211_scan(wlan_private
* priv
,
200 struct cmd_ds_command
*resp
);
202 int wlan_scan_networks(wlan_private
* priv
,
203 const struct wlan_ioctl_user_scan_cfg
* puserscanin
);
209 struct iw_request_info
;
210 extern int libertas_get_scan(struct net_device
*dev
, struct iw_request_info
*info
,
211 struct iw_point
*dwrq
, char *extra
);
212 extern int libertas_set_scan(struct net_device
*dev
, struct iw_request_info
*info
,
213 struct iw_param
*vwrq
, char *extra
);
215 #endif /* _WLAN_SCAN_H */