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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 1E2FCCA9EAB for ; Fri, 18 Oct 2019 22:22:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E479E20872 for ; Fri, 18 Oct 2019 22:22:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571437348; bh=b/VTm9YJ1NJyWJzB9JlmSk2ByMW0IN3eqaHT/MLyop0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=U+MjAl3KW/eniR6jggyoYS7uPvgC6hafYA9PyGh8litRFl3t6xVYfPUk8DyX1hp3w 1xquX7yqZYmUzcYHlPLlP7YnSfuiA0uRkaHN4DpNslIcY9p2q3Ygi6pR5OOunN3129 quYwiWckbwCXouvGTQroWgwMGDo1I5XcnMFETqnA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730382AbfJRWFx (ORCPT ); Fri, 18 Oct 2019 18:05:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:37850 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730287AbfJRWFw (ORCPT ); Fri, 18 Oct 2019 18:05:52 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 03F98222C6; Fri, 18 Oct 2019 22:05:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571436351; bh=b/VTm9YJ1NJyWJzB9JlmSk2ByMW0IN3eqaHT/MLyop0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bf/2qEGtvoEcwAf4RRZZYCaYdgKRj1UFxLH5qby1z7AhEg1Y53ERk3vLAX5ftD/au vb3s/QLUqRckuocTjrPlE/GHBk13w2d5XRpKpqxezOoz8norSLFEPJnPI7BPxntDuX e36qa/KUP9suiQNfpzfoCoaaiaBK0ROQ3y2SnN00= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Stefano Brivio , Jozsef Kadlecsik , Sasha Levin , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 016/100] netfilter: ipset: Make invalid MAC address checks consistent Date: Fri, 18 Oct 2019 18:04:01 -0400 Message-Id: <20191018220525.9042-16-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191018220525.9042-1-sashal@kernel.org> References: <20191018220525.9042-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Stefano Brivio [ Upstream commit 29edbc3ebdb0faa934114f14bf12fc0b784d4f1b ] Set types bitmap:ipmac and hash:ipmac check that MAC addresses are not all zeroes. Introduce one missing check, and make the remaining ones consistent, using is_zero_ether_addr() instead of comparing against an array containing zeroes. This was already done for hash:mac sets in commit 26c97c5d8dac ("netfilter: ipset: Use is_zero_ether_addr instead of static and memcmp"). Signed-off-by: Stefano Brivio Signed-off-by: Jozsef Kadlecsik Signed-off-by: Sasha Levin --- net/netfilter/ipset/ip_set_bitmap_ipmac.c | 3 +++ net/netfilter/ipset/ip_set_hash_ipmac.c | 11 ++++------- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c index 4f01321e793ce..794e0335a8648 100644 --- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c +++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c @@ -235,6 +235,9 @@ bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb, else ether_addr_copy(e.ether, eth_hdr(skb)->h_dest); + if (is_zero_ether_addr(e.ether)) + return -EINVAL; + return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); } diff --git a/net/netfilter/ipset/ip_set_hash_ipmac.c b/net/netfilter/ipset/ip_set_hash_ipmac.c index 16ec822e40447..25560ea742d66 100644 --- a/net/netfilter/ipset/ip_set_hash_ipmac.c +++ b/net/netfilter/ipset/ip_set_hash_ipmac.c @@ -36,9 +36,6 @@ MODULE_ALIAS("ip_set_hash:ip,mac"); /* Type specific function prefix */ #define HTYPE hash_ipmac -/* Zero valued element is not supported */ -static const unsigned char invalid_ether[ETH_ALEN] = { 0 }; - /* IPv4 variant */ /* Member elements */ @@ -104,7 +101,7 @@ hash_ipmac4_kadt(struct ip_set *set, const struct sk_buff *skb, else ether_addr_copy(e.ether, eth_hdr(skb)->h_dest); - if (ether_addr_equal(e.ether, invalid_ether)) + if (is_zero_ether_addr(e.ether)) return -EINVAL; ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); @@ -140,7 +137,7 @@ hash_ipmac4_uadt(struct ip_set *set, struct nlattr *tb[], if (ret) return ret; memcpy(e.ether, nla_data(tb[IPSET_ATTR_ETHER]), ETH_ALEN); - if (ether_addr_equal(e.ether, invalid_ether)) + if (is_zero_ether_addr(e.ether)) return -IPSET_ERR_HASH_ELEM; return adtfn(set, &e, &ext, &ext, flags); @@ -220,7 +217,7 @@ hash_ipmac6_kadt(struct ip_set *set, const struct sk_buff *skb, else ether_addr_copy(e.ether, eth_hdr(skb)->h_dest); - if (ether_addr_equal(e.ether, invalid_ether)) + if (is_zero_ether_addr(e.ether)) return -EINVAL; ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); @@ -260,7 +257,7 @@ hash_ipmac6_uadt(struct ip_set *set, struct nlattr *tb[], return ret; memcpy(e.ether, nla_data(tb[IPSET_ATTR_ETHER]), ETH_ALEN); - if (ether_addr_equal(e.ether, invalid_ether)) + if (is_zero_ether_addr(e.ether)) return -IPSET_ERR_HASH_ELEM; return adtfn(set, &e, &ext, &ext, flags); -- 2.20.1