mptcp: skip connecting the connected address

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This patch added a new helper named lookup_subflow_by_daddr to find
whether the destination address is in the msk's conn_list.

In mptcp_pm_nl_add_addr_received, use lookup_subflow_by_daddr to check
whether the announced address is already connected. If it is, skip
connecting this address and send out the echo.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Geliang Tang 2021-03-26 11:26:32 -07:00 • committed by David S. Miller

parent f7efc7771e

commit d84ad04941

1 changed files with 23 additions and 0 deletions

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net/mptcp/pm_netlink.c

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