netdev - Re: [PATCH 0/4] MIB: add struct net to UDP accounting macros

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Mon, 07 Jul 2008 12:13:27 +0400
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	David Miller <davem@...emloft.net>
CC:	netdev@...r.kernel.org, den@...nvz.org
Subject: Re: [PATCH 0/4] MIB: add struct net to UDP accounting macros

David Miller wrote:
> From: Pavel Emelyanov <xemul@...nvz.org>
> Date: Fri, 04 Jul 2008 15:58:44 +0400
> 
>> This is the first small set of MIB statistics netnsization. The easiest
>> case is UDP stats, so I started with this one. If this set is accepted,
>> I will go on step-by-step with adding struct net to all the other stats' 
>> accounting macros, then SNMP_XXX ones and finish with a set than will put 
>> the stats on the struct net and fix appropriate proc files.
>>
>> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>
>> Acked-by: Denis V. Lunev <den@...nvz.org>
> 
> Applied, thanks Pavel.
> 
> Are we going to provide some way for an administrator to fetch
> stats from the perspective of all namespaces?  I know the idea
> is seperation with this stuff, but admins are going to want
> something like that.

Well, if we want to get the stats for each namespace separately, then
this ability is already present. Since this statistics is shown via the
/proc/net files and the /proc/net itself is seen via the /proc/<pid>/net,
then we can walk the init-s of all the containers in the system and dump
this info.

The problem that is to be solved with this approach is how to get these
init-s :) But since finding any namespace by some task living in it is a
common practice now (netdev moving, sys_hijack) this one will be solved.

BTW, are there some plans about implementing some netlink-based fetcher
of this statistics? If so, then I think it's worth making this engine
namespaces aware from the very beginning.

Thanks,
Pavel

--
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