From patchwork Wed Oct 9 08:25:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 13827732 X-Patchwork-Delegate: johannes@sipsolutions.net Received: from nbd.name (nbd.name [46.4.11.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3AD2B1885BF for ; Wed, 9 Oct 2024 08:26:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.4.11.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728462365; cv=none; b=N7vb3avNVmecMTngjMVArwMDT3EZmqkkfV89U7aqH0Gm/59FnSE9Rjzsfipwqps3M9azboQvgYHq/gJBwoJ/yOjsQuAekMGS22tv2DYzrjJoXAYN2aFy0niffB/Bd4IMtWPA+coHa/vp5JVSsHnMSI+X6DSz24ZOow0rKpSOZbI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728462365; c=relaxed/simple; bh=UkjF4HOro5aN8DiZTQ3QsDvednMYB+Spm+V0JtIFPlY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UEEuJ9QAPQi+ChCnJftkQdF2Gz4vN/0EpaQpFv18MF9DLC/Rk5alFjKApK5j5FRQPF7YD5+qZYSmdylXgD5V9Bq/UG5MGHkFDI+hYRrkYLTFmUjOHVV0ZxV7Ue2nWFQQCJ9NaxI+cN80lBf21XjKymQNbOctJJ+c7x+GNkjFvTs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name; spf=none smtp.mailfrom=nbd.name; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b=biors1W+; arc=none smtp.client-ip=46.4.11.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=nbd.name Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="biors1W+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=+W2n1arQ3UlR5HI1TCcncXTPZc4iGYQAVL4hD78CJNg=; b=biors1W+vJgfzQN2TqW3IORce7 bv46BOfMPjGaE7Nw11IAbjGQw787iKrt2nS8IjnW7hUsAIUpjWiKxJlT1W100gSqDD2FBb0liQAVc HsEtzpL96J5lAELkzsgmnVfE5dnFp07D3GkkL1l9EuTGJRBLVG1G9KsDQbUoDsj0M6Wg=; Received: from p54ae98e8.dip0.t-ipconnect.de ([84.174.152.232] helo=Maecks.lan) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.96) (envelope-from ) id 1syS15-006e0I-0d; Wed, 09 Oct 2024 10:25:55 +0200 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net Subject: [PATCH v5 09/11] wifi: mac80211: add support for the monitor SKIP_TX flag Date: Wed, 9 Oct 2024 10:25:50 +0200 Message-ID: X-Mailer: git-send-email 2.46.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Do not pass locally sent packets to monitor interfaces with this flag set. Skip processing tx packets on the status call entirely if no monitor interfaces without this flag are present. Signed-off-by: Felix Fietkau --- net/mac80211/ieee80211_i.h | 2 +- net/mac80211/iface.c | 2 ++ net/mac80211/status.c | 5 ++++- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 4f0390918b60..d697e9dab70d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1370,7 +1370,7 @@ struct ieee80211_local { spinlock_t queue_stop_reason_lock; int open_count; - int monitors, cooked_mntrs; + int monitors, cooked_mntrs, tx_mntrs; /* number of interfaces with corresponding FIF_ flags */ int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, fif_probe_req; diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 3aefc62034ba..54060ba97b98 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1094,6 +1094,8 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, ADJUST(CONTROL, control); ADJUST(CONTROL, pspoll); ADJUST(OTHER_BSS, other_bss); + if (!(flags & MONITOR_FLAG_SKIP_TX)) + local->tx_mntrs += offset; #undef ADJUST } diff --git a/net/mac80211/status.c b/net/mac80211/status.c index d1cf987de13b..eb889cda8bf9 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -927,6 +927,9 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, if (!ieee80211_sdata_running(sdata)) continue; + if (sdata->u.mntr.flags & MONITOR_FLAG_SKIP_TX) + continue; + if ((sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) && !send_to_cooked) continue; @@ -1099,7 +1102,7 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, * This is a bit racy but we can avoid a lot of work * with this test... */ - if (!local->monitors && (!send_to_cooked || !local->cooked_mntrs)) { + if (!local->tx_mntrs && (!send_to_cooked || !local->cooked_mntrs)) { if (status->free_list) list_add_tail(&skb->list, status->free_list); else