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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,T_DKIMWL_WL_HIGH, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id E3C3FC433EF for ; Tue, 12 Jun 2018 16:51:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F574208B7 for ; Tue, 12 Jun 2018 16:51:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vnz6KFpV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F574208B7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934840AbeFLQvP (ORCPT ); Tue, 12 Jun 2018 12:51:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:60882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934829AbeFLQrs (ORCPT ); Tue, 12 Jun 2018 12:47:48 -0400 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F3E67208B7; Tue, 12 Jun 2018 16:47:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1528822067; bh=wNvpJc+D8q9Nmmw6e6eDB3KfEtbzYaqPMNmQzYjvKMY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vnz6KFpV2/xtaRsmqBKjNt+6Lg78uaD3xBHs2NQYzsy5Y67k1AXa6nH/cYdRZT/EH gNa+ZXk97mhqlrBi4miM0Cs8vK3DvLaCLRPRFEW3VIy526jKnWLMQxwS9t2ziYxldA XHzWiQcG65+WhlsUruFsbC34YZbkRWA4CxIhvQQA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stephen Suryaputra , David Ahern , "David S. Miller" Subject: [PATCH 4.9 23/31] vrf: check the original netdevice for generating redirect Date: Tue, 12 Jun 2018 18:46:26 +0200 Message-Id: <20180612164621.703872905@linuxfoundation.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180612164620.797338191@linuxfoundation.org> References: <20180612164620.797338191@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stephen Suryaputra [ Upstream commit 2f17becfbea5e9a0529b51da7345783e96e69516 ] Use the right device to determine if redirect should be sent especially when using vrf. Same as well as when sending the redirect. Signed-off-by: Stephen Suryaputra Acked-by: David Ahern Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv6/ip6_output.c | 3 ++- net/ipv6/ndisc.c | 6 ++++++ 2 files changed, 8 insertions(+), 1 deletion(-) --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -487,7 +487,8 @@ int ip6_forward(struct sk_buff *skb) send redirects to source routed frames. We don't send redirects to frames decapsulated from IPsec. */ - if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) { + if (IP6CB(skb)->iif == dst->dev->ifindex && + opt->srcrt == 0 && !skb_sec_path(skb)) { struct in6_addr *target = NULL; struct inet_peer *peer; struct rt6_info *rt; --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1538,6 +1538,12 @@ void ndisc_send_redirect(struct sk_buff ops_data_buf[NDISC_OPS_REDIRECT_DATA_SPACE], *ops_data = NULL; bool ret; + if (netif_is_l3_master(skb->dev)) { + dev = __dev_get_by_index(dev_net(skb->dev), IPCB(skb)->iif); + if (!dev) + return; + } + if (ipv6_get_lladdr(dev, &saddr_buf, IFA_F_TENTATIVE)) { ND_PRINTK(2, warn, "Redirect: no link-local address on %s\n", dev->name);