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This patch adds support for checkpoint and restore of two linux security modules (apparmor and selinux). The actual checkpoint or restore code isn't that interesting, other than that we have to do the LSM restore in the restorer blob since it may block any number of things that we want to do as part of the restore process. I tried originally to get this to work using libraries in the restorer blob, but I could _not_ get things to work correctly (I assume I was doing something wrong with all the static linking, you can see my draft attempts here: https://github.com/tych0/criu/commits/apparmor-using-libraries ). I can try to resurrect this if it makes more sense, to do it that way, though. v2: lsm_profile lives in creds.proto instead of the task core, look in a more canonical place for selinuxfs and don't try to special case any selinux profile names. v3: only allow unconfined selinux profiles Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
criu ==== An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space. The project home is at http://criu.org Pages worth starting with are * Kernel configuration, compilation, etc: http://criu.org/Installation * A simple example of usage: http://criu.org/Simple_loop * More sophisticated example with graphical app: http://criu.org/VNC