linux-kernel - Re: [PATCH 2/2] binder: implement namepsace support for Android binder driver

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Message-ID: <52B6C10E.3070002@googlemail.com>
Date:	Sun, 22 Dec 2013 11:38:06 +0100
From:	Stefan Beller <stefanbeller@...glemail.com>
To:	Oren Laadan <orenl@...lrox.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Linux Containers <containers@...ts.linux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	lxc-devel <lxc-devel@...ts.sourceforge.net>,
	Serge Hallyn <serge@...lyn.com>,
	Eric Biederman <ebiederm@...ssion.com>,
	Arve Hjønnevåg 
	<arve@...roid.com>, Amir Goldstein <amir@...lrox.com>
Subject: Re: [PATCH 2/2] binder: implement namepsace support for Android binder
 driver


>  #include <linux/uaccess.h>
>  #include <linux/vmalloc.h>
>  #include <linux/slab.h>
> +#include <linux/ipc_namespace.h>
>  #include <linux/pid_namespace.h>
>  
>  #include "binder.h"
>  #include "binder_trace.h"
>  
> +/*
> + * Using a private context manager for each binder namespace is sufficient
> + * to isolate between namespaces, because in binder all IPC must be realized
> + * via hanldes obtained from the context manager.

handles

> + *
> + * TODO: currently, most debugfs data is not tracked per binder namespaces.
> + * Except for "procs" which are properly virtualized, everything else is
> + * global, including stats, logs, and dead nodes.
> + */
> +struct binder_namespace {
> +	struct kref kref;
> +
> +	struct binder_node *context_mgr_node;
> +	kuid_t context_mgr_uid;
> +	int last_id;

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