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(-) -- 2.20.1
