From patchwork Tue Jul 23 12:52:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: wenxu X-Patchwork-Id: 1135617 X-Patchwork-Delegate: pablo@netfilter.org Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netfilter-devel-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=ucloud.cn Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45tJL14M5Hz9s00 for ; Tue, 23 Jul 2019 22:52:57 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390040AbfGWMw5 (ORCPT ); Tue, 23 Jul 2019 08:52:57 -0400 Received: from m9784.mail.qiye.163.com ([220.181.97.84]:26695 "EHLO m9784.mail.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390011AbfGWMw4 (ORCPT ); Tue, 23 Jul 2019 08:52:56 -0400 Received: from localhost.localdomain (unknown [123.59.132.129]) by m9784.mail.qiye.163.com (Hmail) with ESMTPA id 3A6AA41CF1; Tue, 23 Jul 2019 20:52:46 +0800 (CST) From: wenxu@ucloud.cn To: pablo@netfilter.org, fw@strlen.de Cc: netfilter-devel@vger.kernel.org Subject: [PATCH nf-next 6/7] netfilter: nft_fwd_netdev: add fw_netdev action support Date: Tue, 23 Jul 2019 20:52:43 +0800 Message-Id: <1563886364-11164-7-git-send-email-wenxu@ucloud.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1563886364-11164-1-git-send-email-wenxu@ucloud.cn> References: <1563886364-11164-1-git-send-email-wenxu@ucloud.cn> X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgYFAkeWUFZVkpVSExCS0tLS01MTEpLQ0NZV1koWU FJQjdXWS1ZQUlXWQkOFx4IWUFZNTQpNjo3JCkuNz5ZBg++ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6MQg6Igw*Tzg9NlE9SSwOTi0s PEtPFEtVSlVKTk1IQ0NNSE1NSEpPVTMWGhIXVQweFQMOOw4YFxQOH1UYFUVZV1kSC1lBWUpJSFVO QlVKSElVSklCWVdZCAFZQUlDSkI3Bg++ X-HM-Tid: 0a6c1ee42e2a2086kuqy3a6aa41cf1 Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: wenxu fwd_netdev action offload: nft --debug=netlink add rule netdev firewall aclout ip daddr 10.0.1.7 fwd to eth0 Signed-off-by: wenxu --- net/netfilter/nft_fwd_netdev.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/net/netfilter/nft_fwd_netdev.c b/net/netfilter/nft_fwd_netdev.c index 61b7f93..06dbd98 100644 --- a/net/netfilter/nft_fwd_netdev.c +++ b/net/netfilter/nft_fwd_netdev.c @@ -15,6 +15,7 @@ #include #include #include +#include struct nft_fwd_netdev { enum nft_registers sreg_dev:8; @@ -63,6 +64,33 @@ static int nft_fwd_netdev_dump(struct sk_buff *skb, const struct nft_expr *expr) return -1; } +static int nft_fwd_netdev_offload(struct nft_offload_ctx *ctx, + struct nft_flow_rule *flow, + const struct nft_expr *expr) +{ + const struct nft_fwd_netdev *priv = nft_expr_priv(expr); + struct nft_offload_reg *reg = &ctx->regs[priv->sreg_dev]; + const struct nft_data *data = ®->action.data; + struct flow_action_entry *entry; + struct net_device *dev; + int oif = -1; + + if (reg->type != NFT_OFFLOAD_REG_ACTION) + return -EOPNOTSUPP; + + entry = &flow->rule->action.entries[ctx->num_actions++]; + + memcpy(&oif, data->data, sizeof(oif)); + dev = __dev_get_by_index(ctx->net, oif); + if (!dev) + return -EOPNOTSUPP; + + entry->id = FLOW_ACTION_REDIRECT; + entry->dev = dev; + + return 0; +} + struct nft_fwd_neigh { enum nft_registers sreg_dev:8; enum nft_registers sreg_addr:8; @@ -194,6 +222,8 @@ static int nft_fwd_neigh_dump(struct sk_buff *skb, const struct nft_expr *expr) .eval = nft_fwd_netdev_eval, .init = nft_fwd_netdev_init, .dump = nft_fwd_netdev_dump, + .offload = nft_fwd_netdev_offload, + .offload_actions = nft_offload_action, }; static const struct nft_expr_ops *