From owner-freebsd-bugs@FreeBSD.ORG Tue Feb 28 02:40:08 2012 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 93959106566C for ; Tue, 28 Feb 2012 02:40:08 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 53C2E8FC15 for ; Tue, 28 Feb 2012 02:40:08 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q1S2e8YM068177 for ; Tue, 28 Feb 2012 02:40:08 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q1S2e8aU068176; Tue, 28 Feb 2012 02:40:08 GMT (envelope-from gnats) Resent-Date: Tue, 28 Feb 2012 02:40:08 GMT Resent-Message-Id: <201202280240.q1S2e8aU068176@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Adrian Chadd Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 31F521065670 for ; Tue, 28 Feb 2012 02:38:39 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 158D48FC0C for ; Tue, 28 Feb 2012 02:38:39 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q1S2cc2j022574 for ; Tue, 28 Feb 2012 02:38:38 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q1S2ccfU022573; Tue, 28 Feb 2012 02:38:38 GMT (envelope-from nobody) Message-Id: <201202280238.q1S2ccfU022573@red.freebsd.org> Date: Tue, 28 Feb 2012 02:38:38 GMT From: Adrian Chadd To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/165517: [net80211] bgscan isn't triggered when invalid beacons are being sent X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Feb 2012 02:40:08 -0000 >Number: 165517 >Category: kern >Synopsis: [net80211] bgscan isn't triggered when invalid beacons are being sent >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Feb 28 02:40:07 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Adrian Chadd >Release: -CURRENT >Organization: >Environment: 9.0-RELEASE with HEAD net80211/ath >Description: I was trying to figure out why bgscan isn't working in some instances. What's happening is this: * the bgscan is triggered via sta_recv_mgmt(), on a valid beacon frame * but if the beacon frame isn't valid, it fails an earlier check, so the ieee80211_bg_scan() call is never made. >How-To-Repeat: Find an AP whose beacons fail the check. >Fix: * Fix ieee80211_parse_beacon() if it needs to be fixed * potentially ignore the beacon contents _but_ still trigger a background scan if possible. >Release-Note: >Audit-Trail: >Unformatted: