netdev - Re: Question about /proc/net/netlink mystery

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090520194408.GA8062@hmsreliant.think-freely.org>
Date:	Wed, 20 May 2009 15:44:08 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Rami Rosen <ramirose@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Question about /proc/net/netlink mystery

On Wed, May 20, 2009 at 10:22:46PM +0300, Rami Rosen wrote:
> Hi,
> I tried to figure this out, but something is mysterious here to me.
> 
>  cat /proc/net/netlink
> shows:
> sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks
> 
> Why is the Eth here in the second column title?
> It does not seem that this column has anything to do with network
> interfaces.
> 
> A short look to the code, in netlink_seq_show() , net/netlink/af_netlink.c,
> will show that the values in this column are s->sk_protocol.
> 
> So it seems that the title should be here different; it should represent
> the protocol (since s->sk_protocol is assigned
> the number of the protocol of the netlink socket ;
> for example, NETLINK_ROUTE is 0, NETLINK_AUDIT is 9, and so on ; (see
> include/linux/netfilter.h)
> 
> So shouldn't it be something like "Proto"?
> 
Someone might have been mistakenly thinking [Eth]ertype for that field, but
regardless, it seems wrong.  Honestly, The colum should likely be proto, but who
knows what apps parsing you break if you make that change now.

Neil

> Regards,
> Rami Rosen
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html