linux-kernel - Re: [PATCH v3] net-netlink: Add a new attribute to expose TOS values via netlink

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Message-ID: <1318387734.3686.2.camel@edumazet-laptop>
Date:	Wed, 12 Oct 2011 04:48:54 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Muraliraja Muniraju <muralira@...gle.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v3] net-netlink: Add a new attribute to expose TOS
 values via netlink

Le mardi 11 octobre 2011 à 18:28 -0700, Muraliraja Muniraju a écrit :
> From: Murali Raja <muralira@...gle.com>
> 
> This patch exposes the tos value for the TCP sockets when the TOS flag
> is requested in the ext_flags for the inet_diag request. This would mainly be
> used to expose TOS values for both for TCP and UDP sockets. Currently it is
> supported for TCP. When netlink support for UDP would be added the support
> to expose the TOS values would alse be done.
> 

You could mention TCLASS support for IPv6

> Signed-off-by: Murali Raja <muralira@...gle.com>
> ---
> Changelog since v2:
> - Adding support for IPV6 class and using right API's
> Changelog since v1:
> - Removing reserved field 
> 
>  include/linux/inet_diag.h |    9 ++++++++-
>  net/ipv4/inet_diag.c      |    5 +++++
>  2 files changed, 13 insertions(+), 1 deletions(-)
> 
> diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
> index bc8c490..e36093d 100644
> --- a/include/linux/inet_diag.h
> +++ b/include/linux/inet_diag.h
> @@ -97,9 +97,10 @@ enum {
>  	INET_DIAG_INFO,
>  	INET_DIAG_VEGASINFO,
>  	INET_DIAG_CONG,
> +	INET_DIAG_TOS,
>  };
>  
> -#define INET_DIAG_MAX INET_DIAG_CONG
> +#define INET_DIAG_MAX INET_DIAG_TOS
>  
> 
>  /* INET_DIAG_MEM */
> @@ -120,6 +121,12 @@ struct tcpvegas_info {
>  	__u32	tcpv_minrtt;
>  };
>  
> +/* INET_DIAG_TOS */
> +
> +struct inet_diag_tos {
> +	__u8	idiag_tos;
> +};

Are you sure its still needed ?

I am now wondering what is done in TIME_WAIT state.


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