On Jan 25, Bastian Blank <wa...@debian.org> wrote: > On Mon, Jan 25, 2010 at 12:26:42AM +0000, Marco d'Itri wrote: > > Actually I meant "vzctl exec" so this is not even close: I need to > > change the context of a running process. > Hu? "vzctl exec" does a fork and an exec. Please enlighten me where the > support you want is actually implemented. It does, but it does not have to. :-) It is not documented anywhere and as usual the Parallels developers are less than helpful, but you can use setluid(2) to associate the caller with a beancounter and then an IOCTL on /dev/vzctl to move it in a container. I used this in libpam_vz, which with some careful planning allows multiple contexts to share a lot of stuff (with a decent unionfs even most of the file system).
http://ftp.linux.it/pub/People/md/libpam-vz/ -- ciao, Marco
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