From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Wei Subject: [PATCH] IPv6: Fix not join all-router mcast group when forwarding set. Date: Mon, 05 Mar 2012 17:54:33 +0800 Message-ID: <4F548D59.1060600@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: netdev To: "David S. Miller" Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:1289 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1756387Ab2CEJye (ORCPT ); Mon, 5 Mar 2012 04:54:34 -0500 Sender: netdev-owner@vger.kernel.org List-ID: When forwarding was set and a new net device is register, we need add this device to the all-router mcast group. Signed-off-by: Li Wei --- net/ipv6/addrconf.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index c02280a..1e09591 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -434,6 +434,10 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) /* Join all-node multicast group */ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes); + /* Join all-router multicast group if forwarding is set */ + if (ndev->cnf.forwarding && dev && (dev->flags & IFF_MULTICAST)) + ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters); + return ndev; } -- 1.7.1