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53 Commits

Author SHA1 Message Date
Stanislav Kinsbursky
225d119e5d namespaces: split UTS and generic code 
Generic code will be used for other namespaces.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
 2012-01-31 13:43:28 +04:00
Pavel Emelyanov
98f4c2e4de ns: Support UTS namespace 
Only two fields are modifiable -- hostname and domainname. So
read them on dump and write on restore.

File format is simple --

u32 magic
u32 length of nodename
u8[] nodename string
u32 length of domainname
u8[] domainname string

For OpenVZ we can write the release at the end, but this is later.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
 2012-01-26 16:54:22 +04:00
Pavel Emelyanov
3391416a1b crtools: Namespaces support skeleton 
New option -n to dump/restore namespaces.

Fork the namespaces dumping task and write a helper for switching a namespace.

Prepare the restorer code for restoring namespaces before root task.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
 2012-01-26 16:54:22 +04:00