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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 447E0C433FE for ; Thu, 6 Oct 2022 14:41:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231601AbiJFOlH (ORCPT ); Thu, 6 Oct 2022 10:41:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231415AbiJFOlG (ORCPT ); Thu, 6 Oct 2022 10:41:06 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF3BEAA36E for ; Thu, 6 Oct 2022 07:41:04 -0700 (PDT) Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 296DomuM015125; Thu, 6 Oct 2022 14:41:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=qcppdkim1; bh=Db5btVJDe/SatuCrAfZGfI7N+UArjJmMzaBDzfTo+xM=; b=ajKfgCvmFLnHwg4ENP8g+p3PuRQYe5Ven7QgmzxTXR6PrVv0hA2V9YRIWy3i5UD4vhdi IsynlmRSUUSgz6/gJROj20R5zQTzCYh2nVTec3+XU39Var2ItfuYC1MT9rzTDqgpcRt+ jekV7Ra4P+m6UcCpKbliwJvzCHTq+asDDid6cmIZyl3RtsBJSpZk/WbPpVln3lrSLgRD lKSfVStGXB6ZknZE8PUwdxEzKppT+xkqYnwkjduw/PGW0lIM3h9VPNlv17ufIodVq3Xy +KmGYli6hem2YWsejYKPMMLyY/5yfVJmrak1f//LiU/XcS049za/l6fatXSJOFCli4KA Xg== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3k1qyksdhp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 06 Oct 2022 14:41:01 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 296Ef1PA018388 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 6 Oct 2022 14:41:01 GMT Received: from [10.216.43.141] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Thu, 6 Oct 2022 07:40:59 -0700 Message-ID: Date: Thu, 6 Oct 2022 20:10:55 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.13.1 Subject: Re: [PATCH 05/28] wifi: cfg80211: support reporting failed links Content-Language: en-US To: Johannes Berg CC: References: <20221005145226.2224328320e7.I53966b9c7572fe1a08a7dc02ed29be9e1b0467fc@changeid> <0e354734-6f6b-8170-b453-e699fc9962e5@quicinc.com> <0fd2932c29adcc6be5fe5528d297b7deb0e0617b.camel@sipsolutions.net> <13b44ce9-e000-cdcf-c057-b176edb6d31f@quicinc.com> <6d0333ef30624ef285c01dc2dd27da76450d613e.camel@sipsolutions.net> From: Veerendranath Jakkam In-Reply-To: <6d0333ef30624ef285c01dc2dd27da76450d613e.camel@sipsolutions.net> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: wyP0MSa59xFSYxem4_5hUQX7uwNRJY7x X-Proofpoint-GUID: wyP0MSa59xFSYxem4_5hUQX7uwNRJY7x X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-10-06_03,2022-10-06_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 phishscore=0 spamscore=0 priorityscore=1501 bulkscore=0 mlxscore=0 impostorscore=0 mlxlogscore=562 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210060085 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 10/6/2022 4:41 PM, Johannes Berg wrote: > Right, but is there a fundamental difference between > "hey I roamed to this AP MLD with links 1, 2 and 5" > (with the right BSSIDs for the links etc.) > > and > > "hey I roamed to this AP MLD and I tried links 1, 2, 3, 4, 5 but only > 1, 2 and 5 were established" > > ? supplicant must validate MLO Link KDEs(includes RSNE and RSNXE) for all the negotiated links but MLO GTK/IGTK/BIGTK only for accepted links while processing 3/4 msg. So, during roaming if EAPOL 4HS is offload to supplicant it should know the requested and accepted links information. non-AP MLD needs to select common AKM across all the links. The MLO Link KDEs validation helps to avoid downgrade attacks. - veeru