From patchwork Mon Nov 29 13:32:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 12644521 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E91BC433EF for ; Mon, 29 Nov 2021 13:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244013AbhK2NjG (ORCPT ); Mon, 29 Nov 2021 08:39:06 -0500 Received: from paleale.coelho.fi ([176.9.41.70]:49796 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1377730AbhK2NgS (ORCPT ); Mon, 29 Nov 2021 08:36:18 -0500 Received: from 91-156-6-193.elisa-laajakaista.fi ([91.156.6.193] helo=kveik.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mrgmB-0012xo-6G; Mon, 29 Nov 2021 15:32:59 +0200 From: Luca Coelho To: johannes@sipsolutions.net Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Mon, 29 Nov 2021 15:32:38 +0200 Message-Id: X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211129133248.83829-1-luca@coelho.fi> References: <20211129133248.83829-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 06/16] mac80211: introduce channel switch disconnect function Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Nathan Errera Introduce a disconnect function that can be used when a channel switch error occurs. The channel switch can request to block the tx, and so, we need to make sure we do not send a deauth frame in this case. Signed-off-by: Nathan Errera Signed-off-by: Luca Coelho --- include/net/mac80211.h | 12 ++++++++++++ net/mac80211/cfg.c | 14 +++++++++++++- 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 775dbb982654..6770e17a1d38 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -6073,6 +6073,18 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw); */ void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success); +/** + * ieee80211_channel_switch_disconnect - disconnect due to channel switch error + * @vif &struct ieee80211_vif pointer from the add_interface callback. + * @block_tx: if %true, do not send deauth frame. + * + * Instruct mac80211 to disconnect due to a channel switch error. The channel + * switch can request to block the tx and so, we need to make sure we do not send + * a deauth frame in this case. + */ +void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, + bool block_tx); + /** * ieee80211_request_smps - request SM PS transition * @vif: &struct ieee80211_vif pointer from the add_interface callback. diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 45334d59fe06..23b35fe73a50 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -5,7 +5,7 @@ * Copyright 2006-2010 Johannes Berg * Copyright 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2015-2017 Intel Deutschland GmbH - * Copyright (C) 2018-2020 Intel Corporation + * Copyright (C) 2018-2021 Intel Corporation */ #include @@ -3198,6 +3198,18 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif) } EXPORT_SYMBOL(ieee80211_csa_finish); +void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_local *local = sdata->local; + + sdata->csa_block_tx = block_tx; + sdata_info(sdata, "channel switch failed, disconnecting\n"); + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); +} +EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); + static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, u32 *changed) {