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| author | Christoph Paasch <cpaasch@apple.com> | 2020-01-21 16:56:31 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-24 13:44:08 +0100 |
| commit | cc7972ea1932335e0a0ee00ac8a24b3e8304630d (patch) | |
| tree | d21fb64626a38ba789fc9ffbedd03df45dd27b1e /include/linux/tcp.h | |
| parent | 65492c5a6ab5df5091a77562dbcca2d2dc3877c0 (diff) | |
| download | linux-cc7972ea1932335e0a0ee00ac8a24b3e8304630d.tar.gz linux-cc7972ea1932335e0a0ee00ac8a24b3e8304630d.tar.bz2 linux-cc7972ea1932335e0a0ee00ac8a24b3e8304630d.zip | |
mptcp: parse and emit MP_CAPABLE option according to v1 spec
This implements MP_CAPABLE options parsing and writing according
to RFC 6824 bis / RFC 8684: MPTCP v1.
Local key is sent on syn/ack, and both keys are sent on 3rd ack.
MP_CAPABLE messages len are updated accordingly. We need the skbuff to
correctly emit the above, so we push the skbuff struct as an argument
all the way from tcp code to the relevant mptcp callbacks.
When processing incoming MP_CAPABLE + data, build a full blown DSS-like
map info, to simplify later processing. On child socket creation, we
need to record the remote key, if available.
Signed-off-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/tcp.h')
| -rw-r--r-- | include/linux/tcp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 0d00dad4b85d..4e2124607d32 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -94,7 +94,8 @@ struct mptcp_options_received { data_fin:1, use_ack:1, ack64:1, - __unused:3; + mpc_map:1, + __unused:2; }; #endif |