mptcp: Track received DATA_FIN sequence number and add related helpers

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Incoming DATA_FIN headers need to propagate the presence of the DATA_FIN
bit and the associated sequence number to the MPTCP layer, even when
arriving on a bare ACK that does not get added to the receive queue. Add
structure members to store the DATA_FIN information and helpers to set
and check those values.

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

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Mat Martineau 2020-07-28 15:12:03 -07:00 • committed by David S. Miller

parent 7279da6145

commit 3721b9b646

3 changed files with 115 additions and 10 deletions

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16

net/mptcp/options.c

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106

net/mptcp/protocol.c

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3

net/mptcp/protocol.h

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