From patchwork Thu Aug 6 18:17:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 252908 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 171D9C433DF for ; Thu, 6 Aug 2020 18:36:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 66EFB221E3 for ; Thu, 6 Aug 2020 18:36:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MMjlIBVW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729316AbgHFSgL (ORCPT ); Thu, 6 Aug 2020 14:36:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728031AbgHFSfZ (ORCPT ); Thu, 6 Aug 2020 14:35:25 -0400 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12F73C061757 for ; Thu, 6 Aug 2020 11:17:16 -0700 (PDT) Received: by mail-pj1-x1043.google.com with SMTP id ep8so7108330pjb.3 for ; Thu, 06 Aug 2020 11:17:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=a5pUTcsTuja48kdMdKoSv+A/cIC8t1yvGUP8/DdcotE=; b=MMjlIBVWWTQQ3RIngn7E6idE5SPekvRCXvV2xLkYOgLBUFLR61s6w824aVaSrmTeK4 9F6sB/q8sdR6KZySkYJuzbBs+x9bhbRJF9LnPJlM4lyL+Rgr+t400nCUDriLPLD+mDXP gIn/wKHVIZk+7mvDuMTaViwk4zNj5LjssTmKzaOgR2ivVpntjf46rgwGV/6bc0s/xjle 9RP5oGi10oywctt8zz+uuk2Y2j39ANj6rinS6A/ney3On0DUiszg8lCaUWLrkukdmY9J KPU1MG/NRWNAIvCsrC9y2pzntAU6y6Yj1Fd7VKrPxIa5gHaoAWKv5sMPstiPvbVupD5C QQsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=a5pUTcsTuja48kdMdKoSv+A/cIC8t1yvGUP8/DdcotE=; b=eRSMSv+c50xpChmb5mYR32q1kaOodLrOkBDdvcyc47ctx1eN8IxILutjV1FL0M3Em9 C53Z7Kqu90nWk4XoiW9+3m/dD/2GGwVYWOKdPGYH5/nsd7KQiRrILMeETI2fbiatpqn/ sqxmTOROpt2Aq6rKooynvjWO9ViES81TjH/4XE/0Zy/IrRnkMgpuWDjR37XsGkBIK7Hz B0+tsbko24XisPuaHrtDfpoOsQgYeRwtNLKDTfaMNaWIGWJ3i7DBTNbu8sXbm4cTcYxo NxhIlmlh5c7iVXbM5fLP3ohCFbbMjE3HrwRgfv5iqATP3Nk/qAgy6pn+yCqQblbSoS1g N7lw== X-Gm-Message-State: AOAM5332DWk1ZYJ7SEHOoREQFftLb3qYYdzVmx3Ie6K6vRjteb1V22Fa pzpsifT+lSiZM3M9Oj0F3UeVfPRq X-Google-Smtp-Source: ABdhPJwxIapyQC4EdrIjwo22RpaSdy2Q0wlWXsZydn7RF+sxTwHcXR3pvSoF37DeGFxFVt1+sfr7tA== X-Received: by 2002:a17:902:8643:: with SMTP id y3mr8974426plt.199.1596737835197; Thu, 06 Aug 2020 11:17:15 -0700 (PDT) Received: from localhost.localdomain (c-71-56-157-77.hsd1.or.comcast.net. [71.56.157.77]) by smtp.gmail.com with ESMTPSA id o16sm10341078pfu.188.2020.08.06.11.17.14 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2020 11:17:14 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH 2/4] Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel Date: Thu, 6 Aug 2020 11:17:12 -0700 Message-Id: <20200806181714.3216076-2-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200806181714.3216076-1-luiz.dentz@gmail.com> References: <20200806181714.3216076-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz Only sockets will have the chan->data set to an actual sk, channels like A2MP would have its own data which would likely cause a crash when calling sk_filter, in order to fix this a new callback has been introduced so channels can implement their own filtering if necessary. Signed-off-by: Luiz Augusto von Dentz --- include/net/bluetooth/l2cap.h | 2 ++ net/bluetooth/l2cap_core.c | 7 ++++--- net/bluetooth/l2cap_sock.c | 14 ++++++++++++++ 3 files changed, 20 insertions(+), 3 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index bc5e9fbc3853..61800a7b6192 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -666,6 +666,8 @@ struct l2cap_ops { struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, unsigned long hdr_len, unsigned long len, int nb); + int (*filter) (struct l2cap_chan * chan, + struct sk_buff *skb); }; struct l2cap_conn { diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index a4458c07b5e5..4a6b5e40e5e4 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -7301,9 +7301,10 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb) goto drop; } - if ((chan->mode == L2CAP_MODE_ERTM || - chan->mode == L2CAP_MODE_STREAMING) && sk_filter(chan->data, skb)) - goto drop; + if (chan->ops->filter) { + if (chan->ops->filter(chan, skb)) + goto drop; + } if (!control->sframe) { int err; diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index e1a3e66b1754..79b4c01c515b 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1663,6 +1663,19 @@ static void l2cap_sock_suspend_cb(struct l2cap_chan *chan) sk->sk_state_change(sk); } +static int l2cap_sock_filter(struct l2cap_chan *chan, struct sk_buff *skb) +{ + struct sock *sk = chan->data; + + switch (chan->mode) { + case L2CAP_MODE_ERTM: + case L2CAP_MODE_STREAMING: + return sk_filter(sk, skb); + } + + return 0; +} + static const struct l2cap_ops l2cap_chan_ops = { .name = "L2CAP Socket Interface", .new_connection = l2cap_sock_new_connection_cb, @@ -1678,6 +1691,7 @@ static const struct l2cap_ops l2cap_chan_ops = { .get_sndtimeo = l2cap_sock_get_sndtimeo_cb, .get_peer_pid = l2cap_sock_get_peer_pid_cb, .alloc_skb = l2cap_sock_alloc_skb_cb, + .filter = l2cap_sock_filter, }; static void l2cap_sock_destruct(struct sock *sk) From patchwork Thu Aug 6 18:17:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 252909 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8CC23C433DF for ; Thu, 6 Aug 2020 18:36:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC4E7206B5 for ; Thu, 6 Aug 2020 18:36:10 +0000 (UTC) Authentication-Results: mail.kernel.org; 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[71.56.157.77]) by smtp.gmail.com with ESMTPSA id o16sm10341078pfu.188.2020.08.06.11.17.15 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2020 11:17:15 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH 3/4] Bluetooth: Disable High Speed by default Date: Thu, 6 Aug 2020 11:17:13 -0700 Message-Id: <20200806181714.3216076-3-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200806181714.3216076-1-luiz.dentz@gmail.com> References: <20200806181714.3216076-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz Bluetooth High Speed requires hardware support which is very uncommon nowadays since HS has not pickup interest by the industry. Signed-off-by: Luiz Augusto von Dentz --- net/bluetooth/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig index e2497d764e97..64e669acd42f 100644 --- a/net/bluetooth/Kconfig +++ b/net/bluetooth/Kconfig @@ -64,7 +64,6 @@ source "net/bluetooth/hidp/Kconfig" config BT_HS bool "Bluetooth High Speed (HS) features" depends on BT_BREDR - default y help Bluetooth High Speed includes support for off-loading Bluetooth connections via 802.11 (wifi) physical layer