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Date:   Mon, 18 Feb 2019 10:07:51 +1300
From:   Callum Sinclair <>
        Callum Sinclair <>
Subject: [PATCH net-next v6] ipmr: ip6mr: Create new sockopt to clear mfc cache or vifs

Created a way to clear the multicast forwarding cache on a socket
without having to either remove the entries manually using the delete
entry socket option or destroy and recreate the multicast socket.

Calling the socket option MRT_FLUSH will allow any combination of the
four flag options to be cleared.

MRT_FLUSH_MFC will clear all non static mfc entries and clear the unresolved cache
MRT_FLUSH_MFC_STATIC will clear all static mfc entries
MRT_FLUSH_VIFS will clear all non static interfaces
MRT_FLUSH_VIFS_STATIC will clear all static interfaces.

Callum Sinclair (1):
  ipmr: ip6mr: Create new sockopt to clear mfc cache or vifs

 include/uapi/linux/mroute.h  |  9 ++++-
 include/uapi/linux/mroute6.h |  9 ++++-
 net/ipv4/ipmr.c              | 75 +++++++++++++++++++++-------------
 net/ipv6/ip6mr.c             | 78 +++++++++++++++++++++++-------------
 4 files changed, 115 insertions(+), 56 deletions(-)


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