Re: [PATCH 7/9] sock, cgroup: add sock->sk_cgroup

From: Daniel Wagner
Date: Mon Nov 23 2015 - 10:53:35 EST

On 11/23/2015 04:48 PM, Tejun Heo wrote:
> On Mon, Nov 23, 2015 at 02:02:03PM +0100, Daniel Wagner wrote:
>> On 11/21/2015 05:13 PM, Tejun Heo wrote:
>>> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
>>> Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
>>> Cc: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>
>> I did a quick test and for new connection the cgroup2 match worked as
>> expected. For an existing connection I wasn't able to trigger the match.
>> It is quite likely I do something wrong:
>> ssh into the box
>> # mkdir /sys/fs/cgroup/test
>> # echo $$ > /sys/fs/cgroup/test/cgroup.procs
>> # echo $PPID > /sys/fs/cgroup/test/cgroup.procs
>> # iptables -A OUTPUT -m cgroup --path test
>> Should I see matches with the existing ssh session?
> Socket is associated with the creating cgroup and stays associated
> with that cgroup until it's released. Migrating the process doesn't
> change the ownership of the sockets it has created. This is in line
> with how other stateful resources such as memory are handled in
> cgroup2 hierarchy.

Thanks for the explanation. Looks good to me:

Tested-by: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>
Acked-by: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>

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