From patchwork Thu Jul 27 17:40:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aloka Dixit X-Patchwork-Id: 13330481 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 66A6EC04E69 for ; Thu, 27 Jul 2023 17:41:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232336AbjG0Rlb (ORCPT ); Thu, 27 Jul 2023 13:41:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231262AbjG0Rl2 (ORCPT ); Thu, 27 Jul 2023 13:41:28 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DF862D68 for ; Thu, 27 Jul 2023 10:41:22 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36RDtNSa023621; Thu, 27 Jul 2023 17:41:17 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=MzdapAOIS7NzEjDJx8aZ2L4UnW7uPjg1uEhZ2jWdWZI=; b=J6Ut77X495zpmmWjyWlt4s55Qd+GF0GlukygVmrr4h17MRM/u1O52J+AwIm4638WwtYF VJ6FAFwC8/xyPl1Ontp8r4mNT2dcsAKyRvNWJtD98jCb7KhIpelAGTuEmAylE1p39OyR CUEcjBM0zJSFmRV5BXCMmZLPgEIwX1RqmRU3dlXdsAEcgUlUrhqzQD0HkqLinRO/dKpO 49glQY0JBUyPTPTcFkzABEK5tqF4zUyCl5b6B1vxQr+F+Og5l9xE3zbinorwdZi1qGQ6 fT0onRukrW/Fnsoa/IUyPjZSzJNMdupuLfT0+NZTdp8p5i6K/uycjO91YGdViENAV4nT EA== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s3krn9jhw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Jul 2023 17:41:17 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 36RHfF2B020206 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Jul 2023 17:41:15 GMT Received: from alokad-linux.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Thu, 27 Jul 2023 10:41:15 -0700 From: Aloka Dixit To: , CC: Aloka Dixit Subject: [PATCH v8 2/5] wifi: mac80211: fixes in FILS discovery updates Date: Thu, 27 Jul 2023 10:40:57 -0700 Message-ID: <20230727174100.11721-3-quic_alokad@quicinc.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230727174100.11721-1-quic_alokad@quicinc.com> References: <20230727174100.11721-1-quic_alokad@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: t9Ojl2psypUzlaBOVsA8Lh4yFwWkJwhY X-Proofpoint-GUID: t9Ojl2psypUzlaBOVsA8Lh4yFwWkJwhY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-27_07,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 adultscore=0 suspectscore=0 mlxlogscore=930 priorityscore=1501 bulkscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307270160 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org FILS discovery configuration gets updated only if the maximum interval is set to a non-zero value, hence there is no way to reset this value to 0 once set. Replace the check for interval with a new flag which is set only if the configuration should be updated. Add similar changes for the unsolicited broadcast probe response handling. Signed-off-by: Aloka Dixit --- v8: New patch in this series. net/mac80211/cfg.c | 75 +++++++++++++++++++++++----------------------- 1 file changed, 38 insertions(+), 37 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index e7ac24603892..dcf152114652 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -984,25 +984,28 @@ static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, struct fils_discovery_data *new, *old = NULL; struct ieee80211_fils_discovery *fd; - if (!params->tmpl || !params->tmpl_len) - return -EINVAL; + if (!params->update) + return 0; fd = &link_conf->fils_discovery; fd->min_interval = params->min_interval; fd->max_interval = params->max_interval; old = sdata_dereference(link->u.ap.fils_discovery, sdata); - new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); - if (!new) - return -ENOMEM; - new->len = params->tmpl_len; - memcpy(new->data, params->tmpl, params->tmpl_len); - rcu_assign_pointer(link->u.ap.fils_discovery, new); - if (old) kfree_rcu(old, rcu_head); - return 0; + RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); + if (params->tmpl && params->tmpl_len) { + new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); + if (!new) + return -ENOMEM; + new->len = params->tmpl_len; + memcpy(new->data, params->tmpl, params->tmpl_len); + rcu_assign_pointer(link->u.ap.fils_discovery, new); + } + + return BSS_CHANGED_FILS_DISCOVERY; } static int @@ -1013,23 +1016,26 @@ ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, { struct unsol_bcast_probe_resp_data *new, *old = NULL; - if (!params->tmpl || !params->tmpl_len) - return -EINVAL; + if (!params->update) + return 0; - old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); - new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); - if (!new) - return -ENOMEM; - new->len = params->tmpl_len; - memcpy(new->data, params->tmpl, params->tmpl_len); - rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); + link_conf->unsol_bcast_probe_resp_interval = params->interval; + old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); if (old) kfree_rcu(old, rcu_head); - link_conf->unsol_bcast_probe_resp_interval = params->interval; + RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); + if (params->tmpl && params->tmpl_len) { + new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); + if (!new) + return -ENOMEM; + new->len = params->tmpl_len; + memcpy(new->data, params->tmpl, params->tmpl_len); + rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); + } - return 0; + return BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; } static int ieee80211_set_ftm_responder_params( @@ -1460,23 +1466,18 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, if (err < 0) goto error; - if (params->fils_discovery.max_interval) { - err = ieee80211_set_fils_discovery(sdata, - ¶ms->fils_discovery, - link, link_conf); - if (err < 0) - goto error; - changed |= BSS_CHANGED_FILS_DISCOVERY; - } + err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, + link, link_conf); + if (err < 0) + goto error; + changed |= err; - if (params->unsol_bcast_probe_resp.interval) { - err = ieee80211_set_unsol_bcast_probe_resp(sdata, - ¶ms->unsol_bcast_probe_resp, - link, link_conf); - if (err < 0) - goto error; - changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; - } + err = ieee80211_set_unsol_bcast_probe_resp(sdata, + ¶ms->unsol_bcast_probe_resp, + link, link_conf); + if (err < 0) + goto error; + changed |= err; err = drv_start_ap(sdata->local, sdata, link_conf); if (err) {