sys/net80211/ieee80211_scan_sta.c

83 	uint8_t		se_seen;		/* seen during current scan */
91 	u_int		se_scangen;		/* iterator scan gen# */
104 	ieee80211_scan_table_lock_t st_lock;	/* on scan table */
109 	u_int		st_scangen;		/* scan generation # */
199  * Flush all per-scan state.
214  * Flush all entries in the scan cache.
232  * entry in the scan cache or update any previous entry.
361 			/* only issue one notify event per scan */
497 checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
501 	for (; scan->list != NULL; scan++) {
502 		for (i = 0; i < scan->count; i++)
503 			if (scan->list[i] == c->ic_freq)
535 		 * Ignore dynamic turbo channels; we scan them
544 		 * If a desired mode was specified, scan only
559 		 * fixed scan order tables.  This insures we
571 	 * - not already on the scan list
573 	 * - there is space in the scan list
590 	const struct scanlist *scan;
599 	for (scan = table; scan->list != NULL; scan++) {
600 		mode = scan->mode;
608 			 * The scan table marks 2.4Ghz channels as b
633 			 * If a desired mode was specified, scan only
653 		add_channels(vap, ss, mode, scan->list, scan->count);
719  * Start a station-mode scan by populating the channel list.
740  * Restart a scan, typically a bg scan but can
741  * also be a fg scan that came up empty.
753  * Cancel an ongoing scan.
838  * Used to select the best scan candidate for association in a BSS.
935 		/* scan xrates too; sort of an algol68-style for loop */
982  * Test a scan candidate for suitability/compatibility.
999 	 * the channel list, but it's possible for the scan
1093 		 * in the scan list to 11b and retry the rate check.
1179 		 * this scan will not be penalized.
1244 		 * Manual/background scan, don't select+join the
1258 			"%s: no scan candidate\n", __func__);
1271 		return 0;			/* restart scan */
1283 	return 1;				/* terminate scan */
1287  * Lookup an entry in the scan cache.  We assume we're
1331 	/* NB: the most up to date rssi is in the node, not the scan cache */
1350 			 * Scan cache contents are too old; force a scan now
1352 			 * decision with.  We don't kick off a bg scan if
1355 			 * XXX force immediate switch on scan complete
1382  * Age entries in the scan cache.
1410  * Iterate over the entries in the scan cache, invoking
1516  * Start an adhoc-mode scan by populating the channel list.
1602 		 * Manual/background scan, don't select+join the
1616 			"%s: no scan candidate\n", __func__);
1660 		return 0;			/* restart scan */
1680 	return 1;				/* terminate scan */
1684  * Age entries in the scan cache.
1742  * Cancel an ongoing scan.
1761 	/* NB: use scan list order to preserve channel preference */
1807 		return 0;			/* restart scan */
1822 		 * Manual/background scan, don't select+join the
1874 		 * Manual/background scan, don't select+join the
1888 			"%s: no scan candidate\n", __func__);
1922 		return 0;			/* restart scan */
1934 	return 1;				/* terminate scan */