Date: Tue, 11 Jan 2005 20:48:24 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 68762 for review Message-ID: <200501112048.j0BKmOdW008130@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=68762 Change 68762 by sam@sam_ebb on 2005/01/11 20:48:00 handle scan interruption; explicitly cancel a scan when transitioning from RUN->INIT as can (easily) happen when an interface is marked up then altered again (e.g by setting the channel or altering the operating mode) Affected files ... .. //depot/projects/wifi/sys/net80211/ieee80211_node.c#38 edit .. //depot/projects/wifi/sys/net80211/ieee80211_node.h#19 edit .. //depot/projects/wifi/sys/net80211/ieee80211_proto.c#21 edit Differences ... ==== //depot/projects/wifi/sys/net80211/ieee80211_node.c#38 (text+ko) ==== @@ -570,6 +570,19 @@ } /* + * Mark an ongoing scan stopped. + */ +void +ieee80211_cancel_scan(struct ieee80211com *ic) +{ + + IEEE80211_DPRINTF(ic, IEEE80211_MSG_SCAN, "end %s scan\n", + (ic->ic_flags & IEEE80211_F_ASCAN) ? "active" : "passive"); + + ic->ic_flags &= ~(IEEE80211_F_SCAN | IEEE80211_F_ASCAN); +} + +/* * Complete a scan of potential channels. */ void @@ -578,10 +591,8 @@ struct ieee80211_node *ni, *nextbs, *selbs; struct ieee80211_node_table *nt; - IEEE80211_DPRINTF(ic, IEEE80211_MSG_SCAN, "end %s scan\n", - (ic->ic_flags & IEEE80211_F_ASCAN) ? "active" : "passive"); + ieee80211_cancel_scan(ic); - ic->ic_flags &= ~(IEEE80211_F_SCAN | IEEE80211_F_ASCAN); nt = &ic->ic_scan; ni = TAILQ_FIRST(&nt->nt_node); @@ -736,6 +747,7 @@ ic->ic_flags&IEEE80211_F_SHSLOT ? "short" : "long", ic->ic_flags&IEEE80211_F_USEPROT ? ", protection" : "" ); + /* XXX check ni is in sta table and not scan table */ return ieee80211_sta_join(ic, ni); } ==== //depot/projects/wifi/sys/net80211/ieee80211_node.h#19 (text+ko) ==== @@ -194,6 +194,7 @@ extern void ieee80211_create_ibss(struct ieee80211com*, struct ieee80211_channel *); extern void ieee80211_reset_bss(struct ieee80211com *); +extern void ieee80211_cancel_scan(struct ieee80211com *); extern void ieee80211_end_scan(struct ieee80211com *); extern int ieee80211_ibss_merge(struct ieee80211com *, struct ieee80211_node *); ==== //depot/projects/wifi/sys/net80211/ieee80211_proto.c#21 (text+ko) ==== @@ -900,8 +900,10 @@ break; } goto reset; + case IEEE80211_S_SCAN: + ieee80211_cancel_scan(ic); + goto reset; case IEEE80211_S_AUTH: - case IEEE80211_S_SCAN: reset: ic->ic_mgt_timer = 0; IF_DRAIN(&ic->ic_mgtq);
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