From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE669C677E4 for ; Mon, 8 Oct 2018 18:37:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B739A2087D for ; Mon, 8 Oct 2018 18:37:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="G+qtRwD5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B739A2087D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728844AbeJIBuU (ORCPT ); Mon, 8 Oct 2018 21:50:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:36230 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726529AbeJIBuT (ORCPT ); Mon, 8 Oct 2018 21:50:19 -0400 Received: from localhost (ip-213-127-77-176.ip.prioritytelecom.net [213.127.77.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 781202087D; Mon, 8 Oct 2018 18:37:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1539023836; bh=l3e1hSppWsbconQqRwU8vyK+moobuDGLGAgU+nFxFCI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G+qtRwD54iU75GGdypbOsR1QHqwCr5oRVhuA6t4yZXhOj89E0GerOc21Y0o+IZwyR mKyZME5s9Gts/Oq+834qgOuNRK6ec5wIZVxW32fuqPe7/UIjuDky1GmRMEuRFftdwf iFUxPhpkHlkHzXeDeMTdAq9nF3RSsxMJqqSwQSWM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yuan-Chi Pang , Johannes Berg , Sasha Levin Subject: [PATCH 4.4 078/113] mac80211: mesh: fix HWMP sequence numbering to follow standard Date: Mon, 8 Oct 2018 20:31:19 +0200 Message-Id: <20181008175535.216280370@linuxfoundation.org> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181008175530.864641368@linuxfoundation.org> References: <20181008175530.864641368@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yuan-Chi Pang [ Upstream commit 1f631c3201fe5491808df143d8fcba81b3197ffd ] IEEE 802.11-2016 14.10.8.3 HWMP sequence numbering says: If it is a target mesh STA, it shall update its own HWMP SN to maximum (current HWMP SN, target HWMP SN in the PREQ element) + 1 immediately before it generates a PREP element in response to a PREQ element. Signed-off-by: Yuan-Chi Pang Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- net/mac80211/mesh_hwmp.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -552,6 +552,10 @@ static void hwmp_preq_frame_process(stru forward = false; reply = true; target_metric = 0; + + if (SN_GT(target_sn, ifmsh->sn)) + ifmsh->sn = target_sn; + if (time_after(jiffies, ifmsh->last_sn_update + net_traversal_jiffies(sdata)) || time_before(jiffies, ifmsh->last_sn_update)) {