70 #define	SCAN_PRIVATE(ss)	((struct scan_state *) ss)  argument
97 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_detach()  local
99 	if (ss != NULL) {  in ieee80211_swscan_detach()
100 		scan_signal(ss, ISCAN_ABORT);  in ieee80211_swscan_detach()
101 		ieee80211_draintask(ic, &SCAN_PRIVATE(ss)->ss_scan_start);  in ieee80211_swscan_detach()
103 		    &SCAN_PRIVATE(ss)->ss_scan_curchan);  in ieee80211_swscan_detach()
114 		if (ss->ss_ops != NULL) {  in ieee80211_swscan_detach()
115 			ss->ss_ops->scan_detach(ss);  in ieee80211_swscan_detach()
116 			ss->ss_ops = NULL;  in ieee80211_swscan_detach()
119 		IEEE80211_FREE(SCAN_PRIVATE(ss), M_80211_SCAN);  in ieee80211_swscan_detach()
137 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_vdetach()  local
141 	if (ss != NULL && ss->ss_vap == vap &&  in ieee80211_swscan_vdetach()
143 		scan_signal_locked(ss, ISCAN_ABORT);  in ieee80211_swscan_vdetach()
150 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_set_scan_duration()  local
155 	SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_DISCARD;  in ieee80211_swscan_set_scan_duration()
156 	SCAN_PRIVATE(ss)->ss_duration = duration;  in ieee80211_swscan_set_scan_duration()
169 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_start_scan_locked()  local
192 		if (ss->ss_ops != NULL) {  in ieee80211_swscan_start_scan_locked()
194 				ieee80211_scan_copy_ssid(vap, ss, nssid, ssids);  in ieee80211_swscan_start_scan_locked()
196 			ss->ss_flags = flags & IEEE80211_SCAN_PUBLIC_MASK;  in ieee80211_swscan_start_scan_locked()
197 			if (ss->ss_flags & IEEE80211_SCAN_ACTIVE)  in ieee80211_swscan_start_scan_locked()
202 				ss->ss_ops->scan_flush(ss);  in ieee80211_swscan_start_scan_locked()
211 			ss->ss_next = 0;  in ieee80211_swscan_start_scan_locked()
212 			ss->ss_mindwell = mindwell;  in ieee80211_swscan_start_scan_locked()
213 			ss->ss_maxdwell = maxdwell;  in ieee80211_swscan_start_scan_locked()
215 			ss->ss_ops->scan_start(ss, vap);  in ieee80211_swscan_start_scan_locked()
218 				ieee80211_scan_dump(ss);  in ieee80211_swscan_start_scan_locked()
223 			ieee80211_runtask(ic, &SCAN_PRIVATE(ss)->ss_scan_start);  in ieee80211_swscan_start_scan_locked()
229 		    ss->ss_flags & IEEE80211_SCAN_ACTIVE ? "active" : "passive");  in ieee80211_swscan_start_scan_locked()
273 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_check_scan()  local
278 	if (ss->ss_ops != NULL) {  in ieee80211_swscan_check_scan()
285 			ieee80211_scan_copy_ssid(vap, ss, nssid, ssids);  in ieee80211_swscan_check_scan()
304 			SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_DISCARD;  in ieee80211_swscan_check_scan()
308 			ss->ss_flags = flags & IEEE80211_SCAN_PUBLIC_MASK;  in ieee80211_swscan_check_scan()
309 			result = ss->ss_ops->scan_end(ss, vap);  in ieee80211_swscan_check_scan()
312 			SCAN_PRIVATE(ss)->ss_iflags &= ~ISCAN_DISCARD;  in ieee80211_swscan_check_scan()
336 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_bg_scan()  local
360 		    ss->ss_flags & IEEE80211_SCAN_ACTIVE ? "active" : "passive",  in ieee80211_swscan_bg_scan()
364 		if (ss->ss_ops != NULL) {  in ieee80211_swscan_bg_scan()
365 			ss->ss_vap = vap;  in ieee80211_swscan_bg_scan()
380 			ss->ss_flags |= IEEE80211_SCAN_NOPICK  in ieee80211_swscan_bg_scan()
385 			if (ss->ss_next >= ss->ss_last) {  in ieee80211_swscan_bg_scan()
386 				if (ss->ss_flags & IEEE80211_SCAN_ACTIVE)  in ieee80211_swscan_bg_scan()
395 				ss->ss_next = 0;  in ieee80211_swscan_bg_scan()
396 				if (ss->ss_last != 0) {  in ieee80211_swscan_bg_scan()
398 					ss->ss_ops->scan_restart(ss, vap);  in ieee80211_swscan_bg_scan()
400 					ss->ss_ops->scan_start(ss, vap);  in ieee80211_swscan_bg_scan()
403 						ieee80211_scan_dump(ss);  in ieee80211_swscan_bg_scan()
408 			ss->ss_maxdwell = duration;  in ieee80211_swscan_bg_scan()
412 			    &SCAN_PRIVATE(ss)->ss_scan_start);  in ieee80211_swscan_bg_scan()
420 		    ss->ss_flags & IEEE80211_SCAN_ACTIVE ? "active" : "passive");  in ieee80211_swscan_bg_scan()
437 	struct ieee80211_scan_state *ss = ic->ic_scan;  in cancel_scan()  local
438 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in cancel_scan()
444 	    (any || ss->ss_vap == vap) &&  in cancel_scan()
449 		    ss->ss_flags & IEEE80211_SCAN_ACTIVE ?  in cancel_scan()
453 		ss->ss_flags &= ~IEEE80211_SCAN_NOPICK;  in cancel_scan()
455 		scan_signal_locked(ss, signal);  in cancel_scan()
461 			(ss->ss_vap == vap ? "match" : "nomatch"),  in cancel_scan()
498 	struct ieee80211_scan_state *ss = vap->iv_ic->ic_scan;  in ieee80211_swscan_scan_next()  local
503 	scan_signal(ss, 0);  in ieee80211_swscan_scan_next()
515 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_scan_done()  local
519 	scan_signal_locked(ss, 0);  in ieee80211_swscan_scan_done()
533 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_probe_curchan()  local
547 	for (i = 0; i < ss->ss_nssid; i++)  in ieee80211_swscan_probe_curchan()
552 			ss->ss_ssid[i].ssid, ss->ss_ssid[i].len);  in ieee80211_swscan_probe_curchan()
553 	if ((ss->ss_flags & IEEE80211_SCAN_NOBCAST) == 0)  in ieee80211_swscan_probe_curchan()
567 scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)  in scan_curchan()  argument
569 	struct ieee80211vap *vap  = ss->ss_vap;  in scan_curchan()
570 	struct ieee80211com *ic = ss->ss_ic;  in scan_curchan()
577 	if (ss->ss_flags & IEEE80211_SCAN_ACTIVE)  in scan_curchan()
580 	    &SCAN_PRIVATE(ss)->ss_scan_curchan, maxdwell);  in scan_curchan()
585 scan_signal(struct ieee80211_scan_state *ss, int iflags)  in scan_signal()  argument
587 	struct ieee80211com *ic = ss->ss_ic;  in scan_signal()
592 	scan_signal_locked(ss, iflags);  in scan_signal()
597 scan_signal_locked(struct ieee80211_scan_state *ss, int iflags)  in scan_signal_locked()  argument
599 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in scan_signal_locked()
601 	struct ieee80211com *ic = ss->ss_ic;  in scan_signal_locked()
617 scan_mindwell(struct ieee80211_scan_state *ss)  in scan_mindwell()  argument
620 	IEEE80211_DPRINTF(ss->ss_vap, IEEE80211_MSG_SCAN, "%s: called\n",  in scan_mindwell()
623 	scan_signal(ss, 0);  in scan_mindwell()
630 	struct ieee80211_scan_state *ss = (struct ieee80211_scan_state *) arg;  in scan_start()  local
631 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in scan_start()
632 	struct ieee80211vap *vap = ss->ss_vap;  in scan_start()
633 	struct ieee80211com *ic = ss->ss_ic;  in scan_start()
639 		scan_done(ss, 0);  in scan_start()
643 	if (ss->ss_next == ss->ss_last) {  in scan_start()
646 		scan_done(ss, 1);  in scan_start()
666 				scan_done(ss, 0);  in scan_start()
680 	scan_curchan_task(ss, 0);  in scan_start()
686 	struct ieee80211_scan_state *ss = arg;  in scan_curchan_task()  local
687 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in scan_curchan_task()
688 	struct ieee80211com *ic = ss->ss_ic;  in scan_curchan_task()
702 	scandone = (ss->ss_next >= ss->ss_last) ||  in scan_curchan_task()
704 	scanstop = (ss->ss_next >= ss->ss_last) ||  in scan_curchan_task()
707 	IEEE80211_DPRINTF(ss->ss_vap, IEEE80211_MSG_SCAN,  in scan_curchan_task()
713 	    (uint32_t) ss->ss_next,  in scan_curchan_task()
714 	    (uint32_t) ss->ss_last);  in scan_curchan_task()
716 	if (scanstop || (ss->ss_flags & IEEE80211_SCAN_GOTPICK) ||  in scan_curchan_task()
718 	     ieee80211_time_after(ticks + ss->ss_mindwell, ss_priv->ss_scanend)) {  in scan_curchan_task()
720 		scan_end(ss, scandone);  in scan_curchan_task()
725 	chan = ss->ss_chans[ss->ss_next++];  in scan_curchan_task()
730 	if (ieee80211_time_after(ticks + ss->ss_maxdwell, ss_priv->ss_scanend))  in scan_curchan_task()
733 		maxdwell = ss->ss_maxdwell;  in scan_curchan_task()
735 	IEEE80211_DPRINTF(ss->ss_vap, IEEE80211_MSG_SCAN,  in scan_curchan_task()
742 	    (ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&  in scan_curchan_task()
745 	    ticks_to_msecs(ss->ss_mindwell), ticks_to_msecs(maxdwell));  in scan_curchan_task()
771 	ic->ic_scan_curchan(ss, maxdwell);  in scan_curchan_task()
776 	ss_priv->ss_chanmindwell = ticks + ss->ss_mindwell;  in scan_curchan_task()
786 	IEEE80211_DPRINTF(ss->ss_vap, IEEE80211_MSG_SCAN, "%s: waiting\n",  in scan_curchan_task()
792 scan_end(struct ieee80211_scan_state *ss, int scandone)  in scan_end()  argument
794 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in scan_end()
795 	struct ieee80211vap *vap = ss->ss_vap;  in scan_end()
796 	struct ieee80211com *ic = ss->ss_ic;  in scan_end()
803 		scan_done(ss, scandone);  in scan_end()
841 	ss->ss_flags &= ~IEEE80211_SCAN_GOTPICK;  in scan_end()
851 	    !ss->ss_ops->scan_end(ss, vap) &&  in scan_end()
852 	    (ss->ss_flags & IEEE80211_SCAN_ONCE) == 0 &&  in scan_end()
853 	    ieee80211_time_before(ticks + ss->ss_mindwell, ss_priv->ss_scanend)) {  in scan_end()
858 		    ticks, ss->ss_mindwell, ss_priv->ss_scanend);  in scan_end()
859 		ss->ss_next = 0;	/* reset to beginning */  in scan_end()
860 		if (ss->ss_flags & IEEE80211_SCAN_ACTIVE)  in scan_end()
866 		ss->ss_ops->scan_restart(ss, vap);	/* XXX? */  in scan_end()
873 	if ((ss->ss_flags & IEEE80211_SCAN_BGSCAN) == 0)  in scan_end()
879 	    ticks, ss->ss_mindwell, ss_priv->ss_scanend);  in scan_end()
892 	scan_done(ss, scandone);  in scan_end()
896 scan_done(struct ieee80211_scan_state *ss, int scandone)  in scan_done()  argument
898 	struct scan_state *ss_priv = SCAN_PRIVATE(ss);  in scan_done()
899 	struct ieee80211com *ic = ss->ss_ic;  in scan_done()
900 	struct ieee80211vap *vap = ss->ss_vap;  in scan_done()
928 		if (ss->ss_next >= ss->ss_last) {  in scan_done()
932 			    (uint32_t) ss->ss_next,  in scan_done()
933 			    (uint32_t) ss->ss_last);  in scan_done()
939 		    (ss->ss_next >= ss->ss_last))  in scan_done()
944 	ss->ss_flags &= ~(IEEE80211_SCAN_ONCE | IEEE80211_SCAN_PICK1ST);  in scan_done()
960 	struct ieee80211_scan_state *ss = ic->ic_scan;  in ieee80211_swscan_add_scan()  local
970 	if (SCAN_PRIVATE(ss)->ss_iflags & ISCAN_DISCARD)  in ieee80211_swscan_add_scan()
976 	if (ss->ss_ops != NULL &&  in ieee80211_swscan_add_scan()
977 	    ss->ss_ops->scan_add(ss, curchan, sp, wh, subtype, rssi, noise)) {  in ieee80211_swscan_add_scan()
982 		if ((SCAN_PRIVATE(ss)->ss_iflags & ISCAN_MINDWELL) == 0 &&  in ieee80211_swscan_add_scan()
983 		    ieee80211_time_after_eq(ticks, SCAN_PRIVATE(ss)->ss_chanmindwell)) {  in ieee80211_swscan_add_scan()
989 			    ticks, SCAN_PRIVATE(ss)->ss_chanmindwell);  in ieee80211_swscan_add_scan()
990 			SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_MINDWELL;  in ieee80211_swscan_add_scan()
995 			ic->ic_scan_mindwell(ss);  in ieee80211_swscan_add_scan()
1023 	struct scan_state *ss;  in ieee80211_swscan_attach()  local
1031 	ss = (struct scan_state *) IEEE80211_MALLOC(sizeof(struct scan_state),  in ieee80211_swscan_attach()
1033 	if (ss == NULL) {  in ieee80211_swscan_attach()
1037 	TASK_INIT(&ss->ss_scan_start, 0, scan_start, ss);  in ieee80211_swscan_attach()
1038 	TIMEOUT_TASK_INIT(ic->ic_tq, &ss->ss_scan_curchan, 0,  in ieee80211_swscan_attach()
1039 	    scan_curchan_task, ss);  in ieee80211_swscan_attach()
1041 	ic->ic_scan = &ss->base;  in ieee80211_swscan_attach()
1042 	ss->base.ss_ic = ic;  in ieee80211_swscan_attach()