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1/* -*- mode: C; tab-width: 4; indent-tabs-mode: nil -*- */
2/* vi: set expandtab shiftwidth=4 tabstop=4 textwidth=78: */
3
4/**
5 * Interface for the wlan network scan routines
6 *
7 * Driver interface functions and type declarations for the scan module
8 * implemented in wlan_scan.c.
9 */
10#ifndef _WLAN_SCAN_H
11#define _WLAN_SCAN_H
12
13#include "hostcmd.h"
14
15/**
16 * @brief Maximum number of channels that can be sent in a setuserscan ioctl
17 *
18 * @sa wlan_ioctl_user_scan_cfg
19 */
20#define WLAN_IOCTL_USER_SCAN_CHAN_MAX 50
21
22//! Infrastructure BSS scan type in wlan_scan_cmd_config
23#define WLAN_SCAN_BSS_TYPE_BSS 1
24
25//! Adhoc BSS scan type in wlan_scan_cmd_config
26#define WLAN_SCAN_BSS_TYPE_IBSS 2
27
28//! Adhoc or Infrastructure BSS scan type in wlan_scan_cmd_config, no filter
29#define WLAN_SCAN_BSS_TYPE_ANY 3
30
31/**
32 * @brief Structure used internally in the wlan driver to configure a scan.
33 *
34 * Sent to the command processing module to configure the firmware
35 * scan command prepared by libertas_cmd_80211_scan.
36 *
37 * @sa wlan_scan_networks
38 *
39 */
40struct wlan_scan_cmd_config {
41 /**
42 * @brief BSS type to be sent in the firmware command
43 *
44 * Field can be used to restrict the types of networks returned in the
45 * scan. valid settings are:
46 *
47 * - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
48 * - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
49 * - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
50 */
51 u8 bsstype;
52
53 /**
54 * @brief Specific BSSID used to filter scan results in the firmware
55 */
56 u8 specificBSSID[ETH_ALEN];
57
58 /**
59 * @brief length of TLVs sent in command starting at tlvBuffer
60 */
61 int tlvbufferlen;
62
63 /**
64 * @brief SSID TLV(s) and ChanList TLVs to be sent in the firmware command
65 *
66 * @sa TLV_TYPE_CHANLIST, mrvlietypes_chanlistparamset_t
67 * @sa TLV_TYPE_SSID, mrvlietypes_ssidparamset_t
68 */
69 u8 tlvbuffer[1]; //!< SSID TLV(s) and ChanList TLVs are stored here
70};
71
72/**
73 * @brief IOCTL channel sub-structure sent in wlan_ioctl_user_scan_cfg
74 *
75 * Multiple instances of this structure are included in the IOCTL command
76 * to configure a instance of a scan on the specific channel.
77 */
78struct wlan_ioctl_user_scan_chan {
79 u8 channumber; //!< channel Number to scan
80 u8 radiotype; //!< Radio type: 'B/G' band = 0, 'A' band = 1
81 u8 scantype; //!< Scan type: Active = 0, Passive = 1
82 u16 scantime; //!< Scan duration in milliseconds; if 0 default used
83};
84
85/**
86 * @brief IOCTL input structure to configure an immediate scan cmd to firmware
87 *
88 * Used in the setuserscan (WLAN_SET_USER_SCAN) private ioctl. Specifies
89 * a number of parameters to be used in general for the scan as well
90 * as a channel list (wlan_ioctl_user_scan_chan) for each scan period
91 * desired.
92 *
93 * @sa libertas_set_user_scan_ioctl
94 */
95struct wlan_ioctl_user_scan_cfg {
96
97 /**
98 * @brief Flag set to keep the previous scan table intact
99 *
100 * If set, the scan results will accumulate, replacing any previous
101 * matched entries for a BSS with the new scan data
102 */
103 u8 keeppreviousscan; //!< Do not erase the existing scan results
104
105 /**
106 * @brief BSS type to be sent in the firmware command
107 *
108 * Field can be used to restrict the types of networks returned in the
109 * scan. valid settings are:
110 *
111 * - WLAN_SCAN_BSS_TYPE_BSS (infrastructure)
112 * - WLAN_SCAN_BSS_TYPE_IBSS (adhoc)
113 * - WLAN_SCAN_BSS_TYPE_ANY (unrestricted, adhoc and infrastructure)
114 */
115 u8 bsstype;
116
117 /**
118 * @brief Configure the number of probe requests for active chan scans
119 */
120 u8 numprobes;
121
122 /**
123 * @brief BSSID filter sent in the firmware command to limit the results
124 */
125 u8 specificBSSID[ETH_ALEN];
126
127 /**
128 * @brief SSID filter sent in the firmware command to limit the results
129 */
130 char specificSSID[IW_ESSID_MAX_SIZE + 1];
131
132 /**
133 * @brief Variable number (fixed maximum) of channels to scan up
134 */
135 struct wlan_ioctl_user_scan_chan chanlist[WLAN_IOCTL_USER_SCAN_CHAN_MAX];
136};
137
138/**
139 * @brief Structure used to store information for each beacon/probe response
140 */
141struct bss_descriptor {
142 u8 macaddress[ETH_ALEN];
143
144 struct WLAN_802_11_SSID ssid;
145
146 /* WEP encryption requirement */
147 u32 privacy;
148
149 /* receive signal strength in dBm */
150 long rssi;
151
152 u32 channel;
153
154 u16 beaconperiod;
155
156 u32 atimwindow;
157
158 enum WLAN_802_11_NETWORK_INFRASTRUCTURE inframode;
159 u8 libertas_supported_rates[WLAN_SUPPORTED_RATES];
160
161 int extra_ie;
162
163 u8 timestamp[8]; //!< TSF value included in the beacon/probe response
164 union ieeetypes_phyparamset phyparamset;
165 union IEEEtypes_ssparamset ssparamset;
166 struct ieeetypes_capinfo cap;
167 u8 datarates[WLAN_SUPPORTED_RATES];
168
169 __le64 networktsf; //!< TSF timestamp from the current firmware TSF
170
171 struct ieeetypes_countryinfofullset countryinfo;
172
173 struct WPA_SUPPLICANT wpa_supplicant;
174 struct WPA_SUPPLICANT wpa2_supplicant;
175
176};
177
178extern int libertas_SSID_cmp(struct WLAN_802_11_SSID *ssid1,
179 struct WLAN_802_11_SSID *ssid2);
180extern int libertas_find_SSID_in_list(wlan_adapter * adapter, struct WLAN_802_11_SSID *ssid,
181 u8 * bssid, int mode);
182int libertas_find_best_SSID_in_list(wlan_adapter * adapter, enum WLAN_802_11_NETWORK_INFRASTRUCTURE mode);
183extern int libertas_find_BSSID_in_list(wlan_adapter * adapter, u8 * bssid, int mode);
184
185int libertas_find_best_network_SSID(wlan_private * priv,
186 struct WLAN_802_11_SSID *pSSID,
187 enum WLAN_802_11_NETWORK_INFRASTRUCTURE preferred_mode,
188 enum WLAN_802_11_NETWORK_INFRASTRUCTURE *out_mode);
189
190extern int libertas_send_specific_SSID_scan(wlan_private * priv,
191 struct WLAN_802_11_SSID *prequestedssid,
192 u8 keeppreviousscan);
193extern int libertas_send_specific_BSSID_scan(wlan_private * priv,
194 u8 * bssid, u8 keeppreviousscan);
195
196extern int libertas_cmd_80211_scan(wlan_private * priv,
197 struct cmd_ds_command *cmd,
198 void *pdata_buf);
199
200extern int libertas_ret_80211_scan(wlan_private * priv,
201 struct cmd_ds_command *resp);
202
203int wlan_scan_networks(wlan_private * priv,
204 const struct wlan_ioctl_user_scan_cfg * puserscanin);
205
206struct ifreq;
207
208struct iw_point;
209struct iw_param;
210struct iw_request_info;
211extern int libertas_get_scan(struct net_device *dev, struct iw_request_info *info,
212 struct iw_point *dwrq, char *extra);
213extern int libertas_set_scan(struct net_device *dev, struct iw_request_info *info,
214 struct iw_param *vwrq, char *extra);
215
216#endif /* _WLAN_SCAN_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 16:56:06 -0500