net: bridge: mcast: export multicast router presence adjacent to a port

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To properly support routable multicast addresses in batman-adv in a
group-aware way, a batman-adv node needs to know if it serves multicast
routers.

This adds a function to the bridge to export this so that batman-adv
can then make full use of the Multicast Router Discovery capability of
the bridge.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Linus Lüssing 2021-05-13 15:20:53 +02:00 • committed by David S. Miller

parent b7fb091654

commit 3b85f9ba34

2 changed files with 63 additions and 0 deletions

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8

include/linux/if_bridge.h

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