2 * WPA Supplicant - auto scan
3 * Copyright (c) 2012, Intel Corporation. All rights reserved.
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "wpa_supplicant_i.h"
18 #ifdef CONFIG_AUTOSCAN_EXPONENTIAL
19 extern const struct autoscan_ops autoscan_exponential_ops;
20 #endif /* CONFIG_AUTOSCAN_EXPONENTIAL */
22 #ifdef CONFIG_AUTOSCAN_PERIODIC
23 extern const struct autoscan_ops autoscan_periodic_ops;
24 #endif /* CONFIG_AUTOSCAN_PERIODIC */
26 static const struct autoscan_ops * autoscan_modules[] = {
27 #ifdef CONFIG_AUTOSCAN_EXPONENTIAL
28 &autoscan_exponential_ops,
29 #endif /* CONFIG_AUTOSCAN_EXPONENTIAL */
30 #ifdef CONFIG_AUTOSCAN_PERIODIC
31 &autoscan_periodic_ops,
32 #endif /* CONFIG_AUTOSCAN_PERIODIC */
37 static void request_scan(struct wpa_supplicant *wpa_s)
39 wpa_s->scan_req = MANUAL_SCAN_REQ;
41 if (wpa_supplicant_req_sched_scan(wpa_s))
42 wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval, 0);
46 int autoscan_init(struct wpa_supplicant *wpa_s, int req_scan)
48 const char *name = wpa_s->conf->autoscan;
52 const struct autoscan_ops *ops = NULL;
54 if (wpa_s->autoscan && wpa_s->autoscan_priv)
60 params = os_strchr(name, ':');
63 nlen = os_strlen(name);
69 for (i = 0; autoscan_modules[i]; i++) {
70 if (os_strncmp(name, autoscan_modules[i]->name, nlen) == 0) {
71 ops = autoscan_modules[i];
77 wpa_printf(MSG_ERROR, "autoscan: Could not find module "
78 "matching the parameter '%s'", name);
82 wpa_s->autoscan_params = NULL;
84 wpa_s->autoscan_priv = ops->init(wpa_s, params);
85 if (wpa_s->autoscan_priv == NULL)
87 wpa_s->autoscan = ops;
89 wpa_printf(MSG_DEBUG, "autoscan: Initialized module '%s' with "
90 "parameters '%s'", ops->name, params);
95 * Cancelling existing scan requests, if any.
97 wpa_supplicant_cancel_sched_scan(wpa_s);
98 wpa_supplicant_cancel_scan(wpa_s);
101 * Firing first scan, which will lead to call autoscan_notify_scan.
109 void autoscan_deinit(struct wpa_supplicant *wpa_s)
111 if (wpa_s->autoscan && wpa_s->autoscan_priv) {
112 wpa_printf(MSG_DEBUG, "autoscan: Deinitializing module '%s'",
113 wpa_s->autoscan->name);
114 wpa_s->autoscan->deinit(wpa_s->autoscan_priv);
115 wpa_s->autoscan = NULL;
116 wpa_s->autoscan_priv = NULL;
118 wpa_s->scan_interval = 5;
119 wpa_s->sched_scan_interval = 0;
124 int autoscan_notify_scan(struct wpa_supplicant *wpa_s,
125 struct wpa_scan_results *scan_res)
129 if (wpa_s->autoscan && wpa_s->autoscan_priv) {
130 interval = wpa_s->autoscan->notify_scan(wpa_s->autoscan_priv,
136 wpa_s->scan_interval = interval;
137 wpa_s->sched_scan_interval = interval;