Re: [PATCH net-next 2/8] tcp: accept SOF_TIMESTAMPING_OPT_ID for passive TFO

[Yuchung Cheng]

On Wed, Mar 30, 2016 at 8:35 PM, Willem de Bruijn
<willemdebruijn.ker...@gmail.com> wrote:
> On Wed, Mar 30, 2016 at 6:37 PM, Soheil Hassas Yeganeh
> <soheil.k...@gmail.com> wrote:
>> From: Soheil Hassas Yeganeh <soh...@google.com>
>>
>> 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 <soh...@google.com>
>
> Acked-by: Willem de Bruijn <will...@google.com>
Acked-by: Yuchung Cheng <ych...@google.com>