From patchwork Tue Feb 13 09:20:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamizh chelvam X-Patchwork-Id: 10215409 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5FAE360467 for ; Tue, 13 Feb 2018 09:21:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 59ECC28A2E for ; Tue, 13 Feb 2018 09:21:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4E96028E50; Tue, 13 Feb 2018 09:21:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A46C728A2E for ; Tue, 13 Feb 2018 09:21:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934451AbeBMJVj (ORCPT ); Tue, 13 Feb 2018 04:21:39 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:34276 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933805AbeBMJVf (ORCPT ); Tue, 13 Feb 2018 04:21:35 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E27986072E; Tue, 13 Feb 2018 09:21:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1518513694; bh=rpWzSu61QUYXTMH95fO8R7eHZGdVxKYlGQtly2z86X4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oq5lb2ZW4raxWIbu+Rm+pufT+5k43xt/NQGpFC4n+G46oSR1jiDcAtAzQpFebO4Ia CPkVQewl7M/eHBpDU8eRWk2y94YxnPzN14bdg0Q6mg/SJj0fZU1t/oyzjkwiqKzPVi BPX61kXQ5U7TXKjrLagOx1R8rElYXHGN5IWWX0p4= Received: from che-swdbs-01.qca.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: tamizhr@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id AB29560790; Tue, 13 Feb 2018 09:21:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1518513694; bh=rpWzSu61QUYXTMH95fO8R7eHZGdVxKYlGQtly2z86X4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oq5lb2ZW4raxWIbu+Rm+pufT+5k43xt/NQGpFC4n+G46oSR1jiDcAtAzQpFebO4Ia CPkVQewl7M/eHBpDU8eRWk2y94YxnPzN14bdg0Q6mg/SJj0fZU1t/oyzjkwiqKzPVi BPX61kXQ5U7TXKjrLagOx1R8rElYXHGN5IWWX0p4= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org AB29560790 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=tamizhr@codeaurora.org From: Tamizh chelvam To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Tamizh chelvam Subject: [PATCHv2 1/3] cfg80211: enable setting cqm rssi config for AP mode Date: Tue, 13 Feb 2018 14:50:56 +0530 Message-Id: <1518513656-22324-2-git-send-email-tamizhr@codeaurora.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1518513656-22324-1-git-send-email-tamizhr@codeaurora.org> References: <1518513656-22324-1-git-send-email-tamizhr@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tamizh chelvam This patch extend cqm rssi config and notifier feature to AP mode by introducing NL80211_EXT_FEATURE_AP_STA_CQM_RSSI_CONFIG ext feature bit. And this patch introduces NL80211_MCGRP_AP_STA_CQM for notifying station's low/high rssi event to userspace application. Signed-off-by: Tamizh chelvam --- include/net/cfg80211.h | 15 ++++++++++ include/uapi/linux/nl80211.h | 6 ++++ net/wireless/nl80211.c | 68 +++++++++++++++++++++++++++++++++++------- 3 files changed, 79 insertions(+), 10 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 7d49cd0..179904f 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5704,6 +5704,21 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, s32 rssi_level, gfp_t gfp); /** + * cfg80211_ap_sta_cqm_rssi_notify - CQM rssi event for connected stations + * @dev: network device + * @mac: peer's MAC address + * @rssi_event: the triggered RSSI event + * @rssi_level: new RSSI level value or 0 if not available + * @gfp: context flags + * + * This function is called when a configured connection quality monitoring + * rssi threshold reached event occurs for a station. + */ +void cfg80211_ap_sta_cqm_rssi_notify(struct net_device *dev, const u8 *mac, + enum nl80211_cqm_rssi_threshold_event rssi_event, + s32 rssi_level, gfp_t gfp); + +/** * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer * @dev: network device * @peer: peer's MAC address diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index ca3d5a6..9448bba 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -49,6 +49,7 @@ #define NL80211_MULTICAST_GROUP_MLME "mlme" #define NL80211_MULTICAST_GROUP_VENDOR "vendor" #define NL80211_MULTICAST_GROUP_NAN "nan" +#define NL80211_MULTICAST_GROUP_AP_STA_CQM "apstacqm" #define NL80211_MULTICAST_GROUP_TESTMODE "testmode" /** @@ -4996,6 +4997,10 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_LOW_SPAN_SCAN: Driver supports low span scan. * @NL80211_EXT_FEATURE_LOW_POWER_SCAN: Driver supports low power scan. * @NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN: Driver supports high accuracy scan. + * @NL80211_EXT_FEATURE_AP_STA_CQM_RSSI_CONFIG: With this driver the + * non P2P/STA interface accept %NL80211_ATTR_CQM_RSSI_THOLD and + * %NL80211_ATTR_CQM_RSSI_HYST attributes to monitor connected clients + * rssi values. * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. @@ -5026,6 +5031,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_LOW_SPAN_SCAN, NL80211_EXT_FEATURE_LOW_POWER_SCAN, NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN, + NL80211_EXT_FEATURE_AP_STA_CQM_RSSI_CONFIG, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index cc6ec5b..68627a7 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -43,6 +43,7 @@ enum nl80211_multicast_groups { NL80211_MCGRP_MLME, NL80211_MCGRP_VENDOR, NL80211_MCGRP_NAN, + NL80211_MCGRP_AP_STA_CQM, NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ }; @@ -53,6 +54,8 @@ enum nl80211_multicast_groups { [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME }, [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR }, [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN }, + [NL80211_MCGRP_AP_STA_CQM] = { + .name = NL80211_MULTICAST_GROUP_AP_STA_CQM }, #ifdef CONFIG_NL80211_TESTMODE [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE } #endif @@ -9903,8 +9906,10 @@ static int nl80211_set_cqm_rssi(struct genl_info *info, prev = thresholds[i]; } - if (wdev->iftype != NL80211_IFTYPE_STATION && - wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) + if ((wdev->iftype != NL80211_IFTYPE_STATION && + wdev->iftype != NL80211_IFTYPE_P2P_CLIENT && + !wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_AP_STA_CQM_RSSI_CONFIG))) return -EOPNOTSUPP; wdev_lock(wdev); @@ -14601,9 +14606,24 @@ static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) NL80211_MCGRP_MLME, gfp); } -void cfg80211_cqm_rssi_notify(struct net_device *dev, - enum nl80211_cqm_rssi_threshold_event rssi_event, - s32 rssi_level, gfp_t gfp) +static void cfg80211_send_ap_sta_cqm(struct sk_buff *msg, gfp_t gfp) +{ + void **cb = (void **)msg->cb; + struct cfg80211_registered_device *rdev = cb[2]; + + nla_nest_end(msg, cb[1]); + genlmsg_end(msg, cb[0]); + + memset(msg->cb, 0, sizeof(msg->cb)); + + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, + NL80211_MCGRP_AP_STA_CQM, gfp); +} + +static struct sk_buff *cfg80211_cqm_rssi_prepare(struct net_device *dev, + const u8 *mac, + enum nl80211_cqm_rssi_threshold_event rssi_event, + s32 rssi_level, gfp_t gfp) { struct sk_buff *msg; struct wireless_dev *wdev = dev->ieee80211_ptr; @@ -14613,7 +14633,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) - return; + return NULL; if (wdev->cqm_config) { wdev->cqm_config->last_rssi_event_value = rssi_level; @@ -14626,7 +14646,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, msg = cfg80211_prepare_cqm(dev, NULL, gfp); if (!msg) - return; + return NULL; if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, rssi_event)) @@ -14636,15 +14656,43 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, rssi_level)) goto nla_put_failure; - cfg80211_send_cqm(msg, gfp); - - return; + return msg; nla_put_failure: nlmsg_free(msg); + return NULL; +} + +void cfg80211_cqm_rssi_notify(struct net_device *dev, + enum nl80211_cqm_rssi_threshold_event rssi_event, + s32 rssi_level, gfp_t gfp) +{ + struct sk_buff *msg; + + msg = cfg80211_cqm_rssi_prepare(dev, NULL, rssi_event, rssi_level, + gfp); + if (!msg) + return; + cfg80211_send_cqm(msg, gfp); + + return; } EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); +void cfg80211_ap_sta_cqm_rssi_notify(struct net_device *dev, const u8 *mac, + enum nl80211_cqm_rssi_threshold_event rssi_event, + s32 rssi_level, gfp_t gfp) +{ + struct sk_buff *msg; + + msg = cfg80211_cqm_rssi_prepare(dev, mac, rssi_event, rssi_level, + gfp); + if (!msg) + return; + cfg80211_send_ap_sta_cqm(msg, gfp); +} +EXPORT_SYMBOL(cfg80211_ap_sta_cqm_rssi_notify); + void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)