From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Wei Subject: [PATCH v2] IPv6: Fix not join all-router mcast group when forwarding set. Date: Tue, 06 Mar 2012 08:45:17 +0800 Message-ID: <4F555E1D.8020008@cn.fujitsu.com> References: <4F548D59.1060600@cn.fujitsu.com> <20120305.151125.1618240418198694711.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: David Miller Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:44030 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S932433Ab2CFApW (ORCPT ); Mon, 5 Mar 2012 19:45:22 -0500 In-Reply-To: <20120305.151125.1618240418198694711.davem@davemloft.net> 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..6b8ebc5 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