From patchwork Mon Feb 13 10:08:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 653949 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 0B4DCC636D4 for ; Mon, 13 Feb 2023 10:09:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231158AbjBMKJh (ORCPT ); Mon, 13 Feb 2023 05:09:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230136AbjBMKJc (ORCPT ); Mon, 13 Feb 2023 05:09:32 -0500 Received: from nbd.name (nbd.name [46.4.11.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A2D4EB71 for ; Mon, 13 Feb 2023 02:09:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version: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: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=bJgyHZNZjCHkhArS26vaUM8o3Y39Mp5N/46zikf5C0U=; b=HHq8yky0TLoJb4T1FGU61zqnNw dvTee2EzG1dtXOdwYS70kimMjc/Dn6EKWsb22pEPkKBSLJEbWMEFzH4lgi4YBdypGHgWtkkiNNlE8 tloI172ti8eAkzemi3U1BNsFfCm8urTLzlH2EZ7D2jyWEMPkydOBMqlMitQm4QLsNAKc=; Received: from p200300daa73b49008dd6ef632c4ae296.dip0.t-ipconnect.de ([2003:da:a73b:4900:8dd6:ef63:2c4a:e296] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.94.2) (envelope-from ) id 1pRVld-007ay2-10; Mon, 13 Feb 2023 11:09:01 +0100 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net Subject: [PATCH 1/5] wifi: cfg80211: move A-MSDU check in ieee80211_data_to_8023_exthdr Date: Mon, 13 Feb 2023 11:08:51 +0100 Message-Id: <20230213100855.34315-1-nbd@nbd.name> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org When parsing the outer A-MSDU header, don't check for inner bridge tunnel or RFC1042 headers. This is handled by ieee80211_amsdu_to_8023s already. Signed-off-by: Felix Fietkau --- net/wireless/util.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/wireless/util.c b/net/wireless/util.c index 38d3b434c18c..430962f97e74 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -631,8 +631,9 @@ int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr, break; } - if (likely(skb_copy_bits(skb, hdrlen, &payload, sizeof(payload)) == 0 && - ((!is_amsdu && ether_addr_equal(payload.hdr, rfc1042_header) && + if (likely(!is_amsdu && + skb_copy_bits(skb, hdrlen, &payload, sizeof(payload)) == 0 && + ((ether_addr_equal(payload.hdr, rfc1042_header) && payload.proto != htons(ETH_P_AARP) && payload.proto != htons(ETH_P_IPX)) || ether_addr_equal(payload.hdr, bridge_tunnel_header)))) {