21.05.2013 20:29, Oleg Nesterov пишет:
On 05/21, J. Bruce Fields wrote:
On Tue, May 21, 2013 at 05:28:36PM +0200, Oleg Nesterov wrote:
OK, so do not do this. Export the new helper.
You mean, export umh_set_fs_root() in the above?
That might be OK.
Yes, or even call_usermodehelper_root().
Stanislav Kinsbursky writes:
> Usermode helper executes all binaries in global "init" root context. This
> doesn't allow to call to call the binary from other root (for example in a
> container).
> Currently, containerized NFS server requires an ability to execute a binary in
> a other context, th
On 05/21, J. Bruce Fields wrote:
>
> On Tue, May 21, 2013 at 05:28:36PM +0200, Oleg Nesterov wrote:
> >
> > OK, so do not do this. Export the new helper.
>
> You mean, export umh_set_fs_root() in the above?
>
> That might be OK.
Yes, or even call_usermodehelper_root().
I didn't argue with the new
On Tue, May 21, 2013 at 05:28:36PM +0200, Oleg Nesterov wrote:
> You know, I am puzzled. Everything looks so clear that I can't
> understand what I could miss.
>
> On 05/20, J. Bruce Fields wrote:
> >
> > On Mon, May 20, 2013 at 05:10:01PM +0200, Oleg Nesterov wrote:
> > > On 05/20, Stanislav Kins
You know, I am puzzled. Everything looks so clear that I can't
understand what I could miss.
On 05/20, J. Bruce Fields wrote:
>
> On Mon, May 20, 2013 at 05:10:01PM +0200, Oleg Nesterov wrote:
> > On 05/20, Stanislav Kinsbursky wrote:
> > >
> > OK, why nfs can't simply use this code
> >
> > st
On Mon, May 20, 2013 at 05:10:01PM +0200, Oleg Nesterov wrote:
> On 05/20, Stanislav Kinsbursky wrote:
> >
> > Moreover, set_fs_root() is not exported.
>
> Then it should be exported, I think ;)
Maybe--there are objections, see below.
> Or you can export the new helper.
>
> > And adding an abil
On 05/20, Stanislav Kinsbursky wrote:
>
> 20.05.2013 17:57, Oleg Nesterov пишет:
>>
>> Why do we need the new member/arguments?
>>
>>> @@ -215,6 +216,9 @@ static int call_usermodehelper(void *data)
>>> */
>>> set_user_nice(current, 0);
>>>
>>> + if (sub_info->root)
>>> + se
20.05.2013 17:57, Oleg Nesterov пишет:
On 05/20, Stanislav Kinsbursky wrote:
Usermode helper executes all binaries in global "init" root context. This
doesn't allow to call to call the binary from other root (for example in a
container).
Currently, containerized NFS server requires an ability t
On 05/20, Stanislav Kinsbursky wrote:
>
> Usermode helper executes all binaries in global "init" root context. This
> doesn't allow to call to call the binary from other root (for example in a
> container).
> Currently, containerized NFS server requires an ability to execute a binary in
> a other c
20.05.2013 12:42, Jeff Layton пишет:
On Mon, 20 May 2013 11:00:37 +0400
Stanislav Kinsbursky wrote:
Usermode helper executes all binaries in global "init" root context. This
doesn't allow to call to call the binary from other root (for example in a
container).
Currently, containerized NFS serv
On Mon, 20 May 2013 11:00:37 +0400
Stanislav Kinsbursky wrote:
> Usermode helper executes all binaries in global "init" root context. This
> doesn't allow to call to call the binary from other root (for example in a
> container).
> Currently, containerized NFS server requires an ability to execut
Usermode helper executes all binaries in global "init" root context. This
doesn't allow to call to call the binary from other root (for example in a
container).
Currently, containerized NFS server requires an ability to execute a binary in
a other context, than "init" root (UMH is used for client r
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