From patchwork Thu Jan 26 14:32:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Veerendranath Jakkam X-Patchwork-Id: 13117240 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 C233CC05027 for ; Thu, 26 Jan 2023 14:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232256AbjAZOda (ORCPT ); Thu, 26 Jan 2023 09:33:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232273AbjAZOd0 (ORCPT ); Thu, 26 Jan 2023 09:33:26 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 977B167786 for ; Thu, 26 Jan 2023 06:33:22 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30QCa78g024410; Thu, 26 Jan 2023 14:33:19 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=SoEO3kHNYCio39/VQ7/BSOSHXQAxLrj5/tVlKNM+ZrI=; b=GpMgmBm68STKF9Ti+aOEFWE1rZkepvkV4kNnljauJZi/XaNaBwW95gKyLLDVH8DchLZc 2kartyDdJAz1RgK13M8dmsnZxd25Eyy3RTjJvp/R7Pm6dGeOUZ9ReoRYtTw7mVCFmOnk OzVFPnUnZMJLKJkcF4uB+YujyFnp5uTHi66oz2T44Nz7gd6zuYXuzcXg1pHnbkn70yOi I2bWiKLrX+E2L7oBjEhYYtJ1lPxqI0RpvkILC48cSh33jTvhZmcK6lsa19jP0oNdWHVW NKLMFbDrUzCs0I1K8CYqxNWbiNMYapbxmJjIv6rWnggl08ennwIJhXGxr5jRIaIYcxJz Kg== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3najkhc6pj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Jan 2023 14:33:19 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 30QEXIvM022556 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Jan 2023 14:33:18 GMT Received: from cnss-mw-linux.qualcomm.com (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 15.2.986.36; Thu, 26 Jan 2023 06:33:16 -0800 From: Veerendranath Jakkam To: CC: , Subject: [PATCH v2 1/2] wifi: cfg80211: Extend cfg80211_new_sta() for MLD AP Date: Thu, 26 Jan 2023 20:02:55 +0530 Message-ID: <20230126143256.960563-2-quic_vjakkam@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126143256.960563-1-quic_vjakkam@quicinc.com> References: <20230126143256.960563-1-quic_vjakkam@quicinc.com> MIME-Version: 1.0 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: su8shik6w0eyC48sIbd9yGB7dUlBzg5e X-Proofpoint-GUID: su8shik6w0eyC48sIbd9yGB7dUlBzg5e X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-26_06,2023-01-25_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 adultscore=0 spamscore=0 suspectscore=0 mlxlogscore=999 clxscore=1015 lowpriorityscore=0 impostorscore=0 mlxscore=0 priorityscore=1501 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301260139 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add support for drivers to indicate STA connection(MLO/non-MLO) when user space SME (e.g., hostapd) is not used for MLD AP. Add new parameters in struct station_info to provide below information in cfg80211_new_sta() call: - MLO link ID of the AP, with which station completed (re)association. This is applicable for both MLO and non-MLO station connections when the AP affiliated with an MLD. - Station's MLD address if the connection is MLO capable. - (Re)Association Response IEs sent to the station. User space needs this to determine rejected and accepted affiliated links information of the connected station if the connection is MLO capable. Signed-off-by: Veerendranath Jakkam --- v2: - Add more detailed commit text and documentation. --- include/net/cfg80211.h | 24 ++++++++++++++++++++++++ net/wireless/nl80211.c | 16 ++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 54a77d906b2d..5686e64e13d1 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1876,6 +1876,24 @@ struct cfg80211_tid_stats { * received packet with an FCS error matches the peer MAC address. * @airtime_link_metric: mesh airtime link metric. * @connected_to_as: true if mesh STA has a path to authentication server + * @mlo_params_valid: Indicates @assoc_link_id and @mld_addr fields are filled + * by driver. Drivers use this only in cfg80211_new_sta() calls when AP + * MLD's MLME/SME is offload to driver. Drivers won't fill this + * information in cfg80211_del_sta_sinfo(), get_station() and + * dump_station() callbacks. + * @assoc_link_id: Indicates MLO link ID of the AP, with which the station + * completed (re)association. This information filled for both MLO + * and non-MLO STA connections when the AP affiliated with an MLD. + * @mld_addr: For MLO STA connection, filled with MLD address of the station. + * For non-MLO STA connection, filled with all zeros. + * @assoc_resp_ies: IEs from (Re)Association Response. + * This is used only when in AP mode with drivers that do not use user + * space MLME/SME implementation. The information is provided only for the + * cfg80211_new_sta() calls to notify user space of the IEs. Drivers won't + * fill this information in cfg80211_del_sta_sinfo(), get_station() and + * dump_station() callbacks. User space needs this information to determine + * the accepted and rejected affiliated links of the connected station. + * @assoc_resp_ies_len: Length of @assoc_resp_ies buffer in octets. */ struct station_info { u64 filled; @@ -1935,6 +1953,12 @@ struct station_info { u32 airtime_link_metric; u8 connected_to_as; + + bool mlo_params_valid; + u8 assoc_link_id; + u8 mld_addr[ETH_ALEN] __aligned(2); + const u8 *assoc_resp_ies; + size_t assoc_resp_ies_len; }; /** diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 64cf6110ce9d..d7324f6370ff 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -6527,6 +6527,22 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, sinfo->assoc_req_ies)) goto nla_put_failure; + if (sinfo->assoc_resp_ies_len && + nla_put(msg, NL80211_ATTR_RESP_IE, sinfo->assoc_resp_ies_len, + sinfo->assoc_resp_ies)) + goto nla_put_failure; + + if (sinfo->mlo_params_valid) { + if (nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, + sinfo->assoc_link_id)) + goto nla_put_failure; + + if (!is_zero_ether_addr(sinfo->mld_addr) && + nla_put(msg, NL80211_ATTR_MLD_ADDR, ETH_ALEN, + sinfo->mld_addr)) + goto nla_put_failure; + } + cfg80211_sinfo_release_content(sinfo); genlmsg_end(msg, hdr); return 0;