Subject: Re: [PATCH 5/5] ss: Show inet and unix sockets' shutdown state

From: Stephen Hemminger <[email-masked]>
Date: Thu, 25 Oct 2012 08:52:29 -0700

On Thu, 25 Oct 2012 17:26:44 +0400
Pavel Emelyanov <[email-masked]> wrote:

> To see this we need kernel >=3.7 with _SHUTDOWN nlarrts in diag messages.
> The output will look like arrows at the end of each line, like this:
> 
> ESTAB 0 0  127.0.0.1:41705  127.0.0.1:12345  ino:143321 sk:ffff88003a8cea00 -->
> ESTAB 0 0  127.0.0.1:46925  127.0.0.1:12346  ino:143322 sk:ffff88003a8ce4c0 <--
> ESTAB 0 0  127.0.0.1:51678  127.0.0.1:12347  ino:143323 sk:ffff88003a8cdf80 ---
> ESTAB 0 0  127.0.0.1:46911  127.0.0.1:12348  ino:143324 sk:ffff88003b7f05c0 <->
> 
> for SHUT_RD, SHUT_WR, SHUT_RDWR and non-shutdown sockets respectively.
> 
> Signed-off-by: Pavel Emelyanov <[email-masked]>
> 
> ---
>  include/linux/inet_diag.h |    3 ++-
>  include/linux/unix_diag.h |    1 +
>  misc/ss.c                 |   26 ++++++++++++++++++++------
>  3 files changed, 23 insertions(+), 7 deletions(-)
> 
> diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
> index 8c469af..bbde90f 100644
> --- a/include/linux/inet_diag.h
> +++ b/include/linux/inet_diag.h
> @@ -109,9 +109,10 @@ enum {
>  	INET_DIAG_TOS,
>  	INET_DIAG_TCLASS,
>  	INET_DIAG_SKMEMINFO,
> +	INET_DIAG_SHUTDOWN,
>  };

Since this requires 3.8 or later kernel, please resubmit this
patch during that merge window.