From patchwork Sun Apr 25 16:00:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Linus_L=C3=BCssing?= X-Patchwork-Id: 18283 Return-Path: X-Original-To: patchwork@open-mesh.org Delivered-To: patchwork@open-mesh.org Received: from diktynna.open-mesh.org (localhost [IPv6:::1]) by diktynna.open-mesh.org (Postfix) with ESMTP id 7C43A8304F; Sun, 25 Apr 2021 18:01:44 +0200 (CEST) Received: from mail.aperture-lab.de (mail.aperture-lab.de [IPv6:2a01:4f8:c2c:665b::1]) by diktynna.open-mesh.org (Postfix) with ESMTPS id 62FE780031 for ; Sun, 25 Apr 2021 18:01:41 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 123483EBF7; Sun, 25 Apr 2021 18:01:37 +0200 (CEST) From: =?utf-8?q?Linus_L=C3=BCssing?= To: netdev@vger.kernel.org Subject: [PATCH net-next 0/2] net: bridge: split IPv4/v6 mc router state and export for batman-adv Date: Sun, 25 Apr 2021 18:00:48 +0200 Message-Id: <20210425160050.8732-1-linus.luessing@c0d3.blue> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.2 ARC-Seal: i=1; s=20121; d=open-mesh.org; t=1619366501; a=rsa-sha256; cv=none; b=lEia0dSzeE0zlynoEfNHopk5K3Aq8LYxHE7iMNUYPIUtckqJVp1Z3Z4wNENvON5aqufTYJ shedEW88NOxKK5WW73pIStuJBt70qRmf8gWcL91uqAb3rcTsMLgdaQJ9crI9G9wy0WsIsK vnMIn0/3eN3hdwRzMJASGorPjhxxQYw= ARC-Authentication-Results: i=1; diktynna.open-mesh.org; dkim=none; spf=none (diktynna.open-mesh.org: domain of linus.luessing@c0d3.blue has no SPF policy when checking 2a01:4f8:c2c:665b::1) smtp.mailfrom=linus.luessing@c0d3.blue ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1619366501; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=xYalNIb2+AlNvqeCyMkhCE1++rbfqWzCzlSMBuNKYtk=; b=hWmLxkosNK1RO0r3i21h7yB9xzrn9ejFoxHrJFb2hhngaX/7OYz45PEBwOA+2mbt9JOTbG W8LdobeRtP+lI4HStkoeLgMeFlcA9zERHA6LVwpZ1lVFLN2kUuGR9A4PaWTBMNN7eMluQW wwT9OVtmiQ1ZptuTE+qnUFBM164FcdQ= Message-ID-Hash: 3MKZYRNZWNTOQS7NQ7BM3A32TIEJZ6CM X-Message-ID-Hash: 3MKZYRNZWNTOQS7NQ7BM3A32TIEJZ6CM X-MailFrom: linus.luessing@c0d3.blue X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: Roopa Prabhu , Nikolay Aleksandrov , Jakub Kicinski , "David S . Miller" , bridge@lists.linux-foundation.org, b.a.t.m.a.n@lists.open-mesh.org, linux-kernel@vger.kernel.org X-Mailman-Version: 3.2.1 Precedence: list Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Hi, The following are two patches for the Linux bridge regarding multicast routers. They are rebased on top of the following fix: "net: bridge: mcast: fix broken length + header check for MRDv6 Adv." [0] And should be applied afterwards. The first one splits the so far combined multicast router state into two ones, one for IPv4 and one for IPv6, for a more fine-grained detection of multicast routers. This avoids sending IPv4 multicast packets to an IPv6-only multicast router and avoids sending IPv6 multicast packets to an IPv4-only multicast router. This is also in preparation for the second patch: The second patch exports this now per protocol family multicast router state so that batman-adv can then later make full use of the Multicast Router Discovery (MRD) support in the Linux bridge. The batman-adv protocol format currently expects separate multicast router states for IPv4 and IPv6, therefore it depends on the first patch. batman-adv will then make use of this newly exported functions like this[1]. Regards, Linus [0]: https://patchwork.kernel.org/project/netdevbpf/patch/20210425152736.8421-1-linus.luessing@c0d3.blue/ [1]: https://git.open-mesh.org/batman-adv.git/shortlog/refs/heads/linus/multicast-routeable-mrd -> https://git.open-mesh.org/batman-adv.git/commit/d4bed3a92427445708baeb1f2d1841c5fb816fd4