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bridge: mcast: add IGMPv3 query support

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This patch adds basic support for IGMPv3 queries, the default is IGMPv2
as before. A new multicast option - multicast_igmp_version, adds the
ability to change it between 2 and 3 via netlink and sysfs. The option
struct member is in a 4 byte hole in net_bridge.

There also a few minor style adjustments in br_multicast_new_group and
br_multicast_add_group.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2016-11-21 13:03:24 +01:00 • committed by David S. Miller
parent fc51f2b7e5
commit 5e9235853d
5 changed files with 98 additions and 18 deletions
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1
include/uapi/linux/if_link.h
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@ -275,6 +275,7 @@ enum {
IFLA_BR_PAD,
IFLA_BR_VLAN_STATS_ENABLED,
IFLA_BR_MCAST_STATS_ENABLED,
IFLA_BR_MCAST_IGMP_VERSION,
__IFLA_BR_MAX,
};