[Devel] [PATCH 10/12] L2 network namespace: playing with pass-through device

[Dmitry Mishin]

On Tuesday 12 December 2006 16:59, Daniel Lezcano wrote:
> Dmitry Mishin wrote:
> > Temporary code to debug and play with pass-through device.
> > Create device pair by
> > 	modprobe veth
> >         echo 'add veth1 0:1:2:3:4:1 eth0 0:1:2:3:4:2' >/proc/net/veth_ctl
> > and your shell will appear into a new namespace with `eth0' device.
> > Configure device in this namespace
> >         ip l s eth0 up
> >         ip a a 1.2.3.4/24 dev eth0
> > and in the root namespace
> >         ip l s veth1 up
> >         ip a a 1.2.3.1/24 dev veth1
> > to establish a communication channel between root namespace and the newly
> > created one.
> > 
> > Code is done by Andrey Savochkin and ported by me over Cedric'c patchset
> > 
> > Signed-off-by: Dmitry Mishin <dim at openvz.org>
> > 
> 
> [ ... ]
> 
> > 
> > --- linux-2.6.19-rc6-mm2.orig/include/linux/net_namespace.h
> > +++ linux-2.6.19-rc6-mm2/include/linux/net_namespace.h
> > @@ -24,6 +24,9 @@ struct net_namespace {
> >  	int			fib4_trie_last_dflt;
> >  #endif
> >  	unsigned int		hash;
> > +	struct net_namespace	*parent;
> > +	struct list_head	child_list, sibling_list;
> > +	unsigned int		id;
> >  };
> 
> Why do yo need to have a child list and sibling list ?
Because of the level2<->level3 hierarchy, for example.

-- 
Thanks,
Dmitry.