From nobody Fri Oct 8 11:28:21 2021 X-Original-To: wireless@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 413B317F2193 for ; Fri, 8 Oct 2021 11:28:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HQmCT19FWz3kQP for ; Fri, 8 Oct 2021 11:28:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 07F63261AC for ; Fri, 8 Oct 2021 11:28:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 198BSKKG094085 for ; Fri, 8 Oct 2021 11:28:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 198BSKrT094084 for wireless@FreeBSD.org; Fri, 8 Oct 2021 11:28:20 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: wireless@FreeBSD.org Subject: [Bug 259003] "ifconfig list scan" can terminate early, before scan ends Date: Fri, 08 Oct 2021 11:28:21 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: wireless X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: bsdpr@phoe.frmug.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: wireless@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussions List-Archive: https://lists.freebsd.org/archives/freebsd-wireless List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-wireless@freebsd.org X-BeenThere: freebsd-wireless@freebsd.org MIME-Version: 1.0 X-Spam: Yes X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259003 Bug ID: 259003 Summary: "ifconfig list scan" can terminate early, before scan ends Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: wireless Assignee: wireless@FreeBSD.org Reporter: bsdpr@phoe.frmug.org On hosts equipped with more than one Wi-Fi interfaces it is possible that=20 "ifconfig list scan" does not wait for the actual completion of the scan and attempt to display incomplete results. In scan_and_wait() (located in ifieee80211.c), the reception of a RTM_IEEE80211_SCAN message is awaited. This loop can terminate early because the interface this message is related to is not checked. I recommend to change } while (rtm->rtm_type !=3D RTM_IEEE80211 || ifan->ifan_what !=3D RTM_IEEE80211_SCAN); to } while (rtm->rtm_type !=3D RTM_IEEE80211 || strcmp(ifan->ifan_name, name)!=3D0 || ifan->ifan_what !=3D RTM_IEEE80211_SCAN); This bug is present from 11 (at least) to current. --=20 You are receiving this mail because: You are the assignee for the bug.=