From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 A5114C48BD9 for ; Wed, 26 Jun 2019 10:32:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8819C204FD for ; Wed, 26 Jun 2019 10:32:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727078AbfFZKcj (ORCPT ); Wed, 26 Jun 2019 06:32:39 -0400 Received: from m97179.mail.qiye.163.com ([220.181.97.179]:53388 "EHLO m97179.mail.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726839AbfFZKch (ORCPT ); Wed, 26 Jun 2019 06:32:37 -0400 Received: from localhost.localdomain (unknown [123.59.132.129]) by m97179.mail.qiye.163.com (Hmail) with ESMTPA id 2370CE01B02; Wed, 26 Jun 2019 18:32:30 +0800 (CST) From: wenxu@ucloud.cn To: pablo@netfilter.org, fw@strlen.de Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 3/3 nf-next] netfilter: Flow table support for the bridge family Date: Wed, 26 Jun 2019 18:32:28 +0800 Message-Id: <1561545148-11978-3-git-send-email-wenxu@ucloud.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1561545148-11978-1-git-send-email-wenxu@ucloud.cn> References: <1561545148-11978-1-git-send-email-wenxu@ucloud.cn> X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgYFAkeWUFZVkpVSUlDQkJCQkxJSE9IT09ZV1koWU FJQjdXWS1ZQUlXWQkOFx4IWUFZNTQpNjo3JCkuNz5ZBg++ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6NzI6Lxw5Tzg1OhQNQwk3MCkY PCsKCktVSlVKTk1KTk9OSk5LSkJDVTMWGhIXVQweFQMOOw4YFxQOH1UYFUVZV1kSC1lBWUpJSFVO QlVKSElVSklCWVdZCAFZQUhDQ0g3Bg++ X-HM-Tid: 0a6b93580ed320bdkuqy2370ce01b02 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: wenxu This patch adds the bridge flow table type, that implements the datapath flow table to forward IPv4 traffic through bridge. Signed-off-by: wenxu --- net/bridge/netfilter/Kconfig | 8 +++++ net/bridge/netfilter/Makefile | 1 + net/bridge/netfilter/nf_flow_table_bridge.c | 46 +++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+) create mode 100644 net/bridge/netfilter/nf_flow_table_bridge.c diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig index f4fb0b9..cba5f71 100644 --- a/net/bridge/netfilter/Kconfig +++ b/net/bridge/netfilter/Kconfig @@ -33,6 +33,14 @@ config NF_CONNTRACK_BRIDGE To compile it as a module, choose M here. If unsure, say N. +config NF_FLOW_TABLE_BRIDGE + tristate "Netfilter flow table bridge module" + depends on NF_FLOW_TABLE && NF_CONNTRACK_BRIDGE + help + This option adds the flow table bridge support. + + To compile it as a module, choose M here. + endif # NF_TABLES_BRIDGE menuconfig BRIDGE_NF_EBTABLES diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile index 9d77673..deb81e6 100644 --- a/net/bridge/netfilter/Makefile +++ b/net/bridge/netfilter/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_NFT_BRIDGE_REJECT) += nft_reject_bridge.o # connection tracking obj-$(CONFIG_NF_CONNTRACK_BRIDGE) += nf_conntrack_bridge.o +obj-$(CONFIG_NF_FLOW_TABLE_BRIDGE) += nf_flow_table_bridge.o # packet logging obj-$(CONFIG_NF_LOG_BRIDGE) += nf_log_bridge.o diff --git a/net/bridge/netfilter/nf_flow_table_bridge.c b/net/bridge/netfilter/nf_flow_table_bridge.c new file mode 100644 index 0000000..ad3220c --- /dev/null +++ b/net/bridge/netfilter/nf_flow_table_bridge.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include +#include + +static unsigned int +nf_flow_offload_bridge_hook(void *priv, struct sk_buff *skb, + const struct nf_hook_state *state) +{ + switch (skb->protocol) { + case htons(ETH_P_IP): + return nf_flow_offload_ip_hook(priv, skb, state); + } + + return NF_ACCEPT; +} + +static struct nf_flowtable_type flowtable_bridge = { + .family = NFPROTO_BRIDGE, + .init = nf_flow_table_init, + .free = nf_flow_table_free, + .hook = nf_flow_offload_bridge_hook, + .owner = THIS_MODULE, +}; + +static int __init nf_flow_bridge_module_init(void) +{ + nft_register_flowtable_type(&flowtable_bridge); + + return 0; +} + +static void __exit nf_flow_bridge_module_exit(void) +{ + nft_unregister_flowtable_type(&flowtable_bridge); +} + +module_init(nf_flow_bridge_module_init); +module_exit(nf_flow_bridge_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("wenxu "); +MODULE_ALIAS_NF_FLOWTABLE(AF_BRIDGE); -- 1.8.3.1