From patchwork Wed Nov 11 19:37:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 11898383 X-Patchwork-Delegate: kuba@kernel.org 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=-12.8 required=3.0 tests=BAYES_00, 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 4C4B2C5517A for ; Wed, 11 Nov 2020 19:38:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 037872087D for ; Wed, 11 Nov 2020 19:38:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727753AbgKKTiZ (ORCPT ); Wed, 11 Nov 2020 14:38:25 -0500 Received: from correo.us.es ([193.147.175.20]:45144 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725984AbgKKTiF (ORCPT ); Wed, 11 Nov 2020 14:38:05 -0500 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id D152F1878C1 for ; Wed, 11 Nov 2020 20:38:03 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id C0319DA85E for ; Wed, 11 Nov 2020 20:38:03 +0100 (CET) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id B2517DA73F; Wed, 11 Nov 2020 20:38:03 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 594FEDA840; Wed, 11 Nov 2020 20:38:01 +0100 (CET) Received: from 192.168.1.97 (192.168.1.97) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/550/antivirus1-rhel7.int); Wed, 11 Nov 2020 20:38:01 +0100 (CET) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/antivirus1-rhel7.int) Received: from localhost.localdomain (unknown [90.77.255.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: pneira@us.es) by entrada.int (Postfix) with ESMTPSA id 2373142EF9E1; Wed, 11 Nov 2020 20:38:01 +0100 (CET) X-SMTPAUTHUS: auth mail.us.es From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org, razor@blackwall.org, jeremy@azazel.net Subject: [PATCH net-next,v3 5/9] bridge: resolve forwarding path for bridge devices Date: Wed, 11 Nov 2020 20:37:33 +0100 Message-Id: <20201111193737.1793-6-pablo@netfilter.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201111193737.1793-1-pablo@netfilter.org> References: <20201111193737.1793-1-pablo@netfilter.org> MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add .ndo_fill_forward_path for bridge devices. Signed-off-by: Pablo Neira Ayuso --- include/linux/netdevice.h | 1 + net/bridge/br_device.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ca8525a1a797..d26de9a3d382 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -836,6 +836,7 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev, enum net_device_path_type { DEV_PATH_ETHERNET = 0, DEV_PATH_VLAN, + DEV_PATH_BRIDGE, }; struct net_device_path { diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 387403931a63..4c3a5334abe0 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -391,6 +391,29 @@ static int br_del_slave(struct net_device *dev, struct net_device *slave_dev) return br_del_if(br, slave_dev); } +static int br_fill_forward_path(struct net_device_path_ctx *ctx, + struct net_device_path *path) +{ + struct net_bridge_fdb_entry *f; + struct net_bridge_port *dst; + struct net_bridge *br; + + if (netif_is_bridge_port(ctx->dev)) + return -1; + + br = netdev_priv(ctx->dev); + f = br_fdb_find_rcu(br, ctx->daddr, 0); + if (!f || !f->dst) + return -1; + + dst = READ_ONCE(f->dst); + path->type = DEV_PATH_BRIDGE; + path->dev = dst->br->dev; + ctx->dev = dst->dev; + + return 0; +} + static const struct ethtool_ops br_ethtool_ops = { .get_drvinfo = br_getinfo, .get_link = ethtool_op_get_link, @@ -425,6 +448,7 @@ static const struct net_device_ops br_netdev_ops = { .ndo_bridge_setlink = br_setlink, .ndo_bridge_dellink = br_dellink, .ndo_features_check = passthru_features_check, + .ndo_fill_forward_path = br_fill_forward_path, }; static struct device_type br_type = {