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| author |   Soheil Hassas Yeganeh <soheil@google.com> | 2016-04-02 23:08:07 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-04-04 15:50:29 -0400 |
| commit | 6db8b963a7a31047573f229492ff6fc0f51cc377 (patch) | |
| tree | df425c13c2e6cccb85fdf52fc43103823f26ac67 /net/ipv4/tcp.c | |
| parent | sock: break up sock_cmsg_snd into __sock_cmsg_snd and loop (diff) | |
| download | linux-dev-6db8b963a7a31047573f229492ff6fc0f51cc377.tar.xz linux-dev-6db8b963a7a31047573f229492ff6fc0f51cc377.zip | |
tcp: accept SOF_TIMESTAMPING_OPT_ID for passive TFO
SOF_TIMESTAMPING_OPT_ID is set to get data-independent IDs
to associate timestamps with send calls. For TCP connections,
tp->snd_una is used as the starting point to calculate
relative IDs.
This socket option will fail if set before the handshake on a
passive TCP fast open connection with data in SYN or SYN/ACK,
since setsockopt requires the connection to be in the
ESTABLISHED state.
To address these, instead of limiting the option to the
ESTABLISHED state, accept the SOF_TIMESTAMPING_OPT_ID option as
long as the connection is not in LISTEN or CLOSE states.
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
0 files changed, 0 insertions, 0 deletions