net80211: restore interface state check for IEEE80211_IOC_SCAN_REQ ioctl.
Do not try to start a scan when interface is not running. How-to-reproduce: 1) ifconfig wlan0 create wlandev urtwn0 2) wlandebug -i wlan0 state 3) ifconfig wlan0 scan
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=300237
@ -2486,6 +2486,11 @@ ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
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* Otherwise just invoke the scan machinery directly.
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*/
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IEEE80211_LOCK(ic);
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if (ic->ic_nrunning == 0) {
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IEEE80211_UNLOCK(ic);
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return ENXIO;
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}
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if (vap->iv_state == IEEE80211_S_INIT) {
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/* NB: clobbers previous settings */
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vap->iv_scanreq_flags = sr->sr_flags;
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