[PATCH 041/106] bridge: fix switched interval for MLD Query types

From: Luis Henriques
Date: Tue Jul 30 2013 - 05:52:07 EST


3.5.7.18 -stable review patch. If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@xxxxxx>

commit 32de868cbc6bee010d2cee95b5071b25ecbec8c3 upstream.

General Queries (the one with the Multicast Address field
set to zero / '::') are supposed to have a Maximum Response Delay
of [Query Response Interval], while for Multicast-Address-Specific
Queries it is [Last Listener Query Interval] - not the other way
round. (see RFC2710, section 7.3+7.8)

Signed-off-by: Linus LÃssing <linus.luessing@xxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
net/bridge/br_multicast.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index b665812..4c1954b 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -469,8 +469,9 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
skb_set_transport_header(skb, skb->len);
mldq = (struct mld_msg *) icmp6_hdr(skb);

- interval = ipv6_addr_any(group) ? br->multicast_last_member_interval :
- br->multicast_query_response_interval;
+ interval = ipv6_addr_any(group) ?
+ br->multicast_query_response_interval :
+ br->multicast_last_member_interval;

mldq->mld_type = ICMPV6_MGM_QUERY;
mldq->mld_code = 0;
--
1.8.3.2

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