Return-path: Received: from mail-pd0-f177.google.com ([209.85.192.177]:50366 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756116Ab3JRPxF (ORCPT ); Fri, 18 Oct 2013 11:53:05 -0400 Received: by mail-pd0-f177.google.com with SMTP id p10so2506969pdj.22 for ; Fri, 18 Oct 2013 08:53:04 -0700 (PDT) MIME-Version: 1.0 Date: Fri, 18 Oct 2013 17:53:04 +0200 Message-ID: (sfid-20131018_175309_515717_CA129EC3) Subject: Active scanning on DFS channels From: Lorenzo Bianconi To: linux-wireless Cc: Johannes Berg , Simon Wunderlich Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi all, According to regdb.txt, DFS channels are not marked with passive scan flag: country US: DFS-FCC (2402 - 2472 @ 40), (3, 27) (5170 - 5250 @ 80), (3, 17) (5250 - 5330 @ 80), (3, 20), DFS (5490 - 5600 @ 80), (3, 20), DFS (5650 - 5710 @ 40), (3, 20), DFS (5735 - 5835 @ 80), (3, 30) Therefore STA device will perform active scanning on DFS channels even if the channel is not CAC checked and available yet. Should we perform passive scan on radar channel setting new state to SCAN_DECISION and not to SCAN_SEND_PROBE in ieee80211_scan_state_set_channel()? Regards, Lorenzo -- UNIX is Sexy: who | grep -i blonde | talk; cd ~; wine; talk; touch; unzip; touch; strip; gasp; finger; gasp; mount; fsck; more; yes; gasp; umount; make clean; sleep