From patchwork Sun Apr 18 21:04:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 423954 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 0DA71C43461 for ; Sun, 18 Apr 2021 21:04:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E034C61245 for ; Sun, 18 Apr 2021 21:04:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232052AbhDRVEx (ORCPT ); Sun, 18 Apr 2021 17:04:53 -0400 Received: from mail.netfilter.org ([217.70.188.207]:34974 "EHLO mail.netfilter.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231218AbhDRVEw (ORCPT ); Sun, 18 Apr 2021 17:04:52 -0400 Received: from localhost.localdomain (unknown [90.77.255.23]) by mail.netfilter.org (Postfix) with ESMTPSA id 44E3263E87; Sun, 18 Apr 2021 23:03:53 +0200 (CEST) From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org Subject: [PATCH net-next 01/14] netfilter: flowtable: add vlan match offload support Date: Sun, 18 Apr 2021 23:04:02 +0200 Message-Id: <20210418210415.4719-2-pablo@netfilter.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210418210415.4719-1-pablo@netfilter.org> References: <20210418210415.4719-1-pablo@netfilter.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: wenxu This patch adds support for vlan_id, vlan_priority and vlan_proto match for flowtable offload. Signed-off-by: wenxu Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_flow_table.h | 2 ++ net/netfilter/nf_flow_table_offload.c | 37 +++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h index 583b327d8fc0..d46e422c9d10 100644 --- a/include/net/netfilter/nf_flow_table.h +++ b/include/net/netfilter/nf_flow_table.h @@ -21,6 +21,8 @@ struct nf_flow_key { struct flow_dissector_key_control control; struct flow_dissector_key_control enc_control; struct flow_dissector_key_basic basic; + struct flow_dissector_key_vlan vlan; + struct flow_dissector_key_vlan cvlan; union { struct flow_dissector_key_ipv4_addrs ipv4; struct flow_dissector_key_ipv6_addrs ipv6; diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c index 7d0d128407be..dc1d6b4e35f8 100644 --- a/net/netfilter/nf_flow_table_offload.c +++ b/net/netfilter/nf_flow_table_offload.c @@ -78,6 +78,16 @@ static void nf_flow_rule_lwt_match(struct nf_flow_match *match, match->dissector.used_keys |= enc_keys; } +static void nf_flow_rule_vlan_match(struct flow_dissector_key_vlan *key, + struct flow_dissector_key_vlan *mask, + u16 vlan_id, __be16 proto) +{ + key->vlan_id = vlan_id; + mask->vlan_id = VLAN_VID_MASK; + key->vlan_tpid = proto; + mask->vlan_tpid = 0xffff; +} + static int nf_flow_rule_match(struct nf_flow_match *match, const struct flow_offload_tuple *tuple, struct dst_entry *other_dst) @@ -85,6 +95,7 @@ static int nf_flow_rule_match(struct nf_flow_match *match, struct nf_flow_key *mask = &match->mask; struct nf_flow_key *key = &match->key; struct ip_tunnel_info *tun_info; + bool vlan_encap = false; NF_FLOW_DISSECTOR(match, FLOW_DISSECTOR_KEY_META, meta); NF_FLOW_DISSECTOR(match, FLOW_DISSECTOR_KEY_CONTROL, control); @@ -102,6 +113,32 @@ static int nf_flow_rule_match(struct nf_flow_match *match, key->meta.ingress_ifindex = tuple->iifidx; mask->meta.ingress_ifindex = 0xffffffff; + if (tuple->encap_num > 0 && !(tuple->in_vlan_ingress & BIT(0)) && + tuple->encap[0].proto == htons(ETH_P_8021Q)) { + NF_FLOW_DISSECTOR(match, FLOW_DISSECTOR_KEY_VLAN, vlan); + nf_flow_rule_vlan_match(&key->vlan, &mask->vlan, + tuple->encap[0].id, + tuple->encap[0].proto); + vlan_encap = true; + } + + if (tuple->encap_num > 1 && !(tuple->in_vlan_ingress & BIT(1)) && + tuple->encap[1].proto == htons(ETH_P_8021Q)) { + if (vlan_encap) { + NF_FLOW_DISSECTOR(match, FLOW_DISSECTOR_KEY_CVLAN, + cvlan); + nf_flow_rule_vlan_match(&key->cvlan, &mask->cvlan, + tuple->encap[1].id, + tuple->encap[1].proto); + } else { + NF_FLOW_DISSECTOR(match, FLOW_DISSECTOR_KEY_VLAN, + vlan); + nf_flow_rule_vlan_match(&key->vlan, &mask->vlan, + tuple->encap[1].id, + tuple->encap[1].proto); + } + } + switch (tuple->l3proto) { case AF_INET: key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;