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From: "Mickaël Salaün" <mic@digikod.net>
To: James Morris <jmorris@namei.org>, Jann Horn <jannh@google.com>,
	"Serge E . Hallyn" <serge@hallyn.com>,
	Kees Cook <keescook@chromium.org>
Cc: "Al Viro" <viro@zeniv.linux.org.uk>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Anton Ivanov" <anton.ivanov@cambridgegreys.com>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Casey Schaufler" <casey@schaufler-ca.com>,
	"David Howells" <dhowells@redhat.com>,
	"Jeff Dike" <jdike@addtoit.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Michael Kerrisk" <mtk.manpages@gmail.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Shuah Khan" <shuah@kernel.org>,
	"Vincent Dagonneau" <vincent.dagonneau@ssi.gouv.fr>,
	kernel-hardening@lists.openwall.com, linux-api@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	linux-security-module@vger.kernel.org, x86@kernel.org,
	"Mickaël Salaün" <mic@linux.microsoft.com>
Subject: Re: [PATCH v31 01/12] landlock: Add object management
Date: Wed, 24 Mar 2021 20:34:19 +0100
Message-ID: <3908b240-8a4b-9bd7-bb5f-b59eaed7cb1f@digikod.net> (raw)
In-Reply-To: <20210324191520.125779-2-mic@digikod.net>


On 24/03/2021 20:15, Mickaël Salaün wrote:
[...]
> diff --git a/security/landlock/object.h b/security/landlock/object.h
> new file mode 100644
> index 000000000000..3e5d5b6941c3
> --- /dev/null
> +++ b/security/landlock/object.h
> @@ -0,0 +1,91 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Landlock LSM - Object management
> + *
> + * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net>
> + * Copyright © 2018-2020 ANSSI
> + */
> +
> +#ifndef _SECURITY_LANDLOCK_OBJECT_H
> +#define _SECURITY_LANDLOCK_OBJECT_H
> +
> +#include <linux/compiler_types.h>
> +#include <linux/refcount.h>
> +#include <linux/spinlock.h>
> +
> +struct landlock_object;
> +
> +/**
> + * struct landlock_object_underops - Operations on an underlying object
> + */
> +struct landlock_object_underops {
> +	/**
> +	 * @release: Releases the underlying object (e.g. iput() for an inode).
> +	 */
> +	void (*release)(struct landlock_object *const object)
> +		__releases(object->lock);
> +};
> +
> +/**
> + * struct landlock_object - Security blob tied to a kernel object
> + *
> + * The goal of this structure is to enable to tie a set of ephemeral access
> + * rights (pertaining to different domains) to a kernel object (e.g an inode)
> + * in a safe way.  This implies to handle concurrent use and modification.
> + *
> + * The lifetime of a &struct landlock_object depends of the rules referring to

You should read "depends on"…

  reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-24 19:15 [PATCH v31 00/12] Landlock LSM Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 01/12] landlock: Add object management Mickaël Salaün
2021-03-24 19:34   ` Mickaël Salaün [this message]
2021-03-24 19:15 ` [PATCH v31 02/12] landlock: Add ruleset and domain management Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 03/12] landlock: Set up the security framework and manage credentials Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 04/12] landlock: Add ptrace restrictions Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 05/12] LSM: Infrastructure management of the superblock Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 06/12] fs,security: Add sb_delete hook Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 07/12] landlock: Support filesystem access-control Mickaël Salaün
2021-03-31 17:33   ` Mickaël Salaün
2021-03-31 17:50     ` Kees Cook
2021-04-01  2:14     ` Al Viro
2021-04-01 17:12       ` Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 08/12] landlock: Add syscall implementations Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 09/12] arch: Wire up Landlock syscalls Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 10/12] selftests/landlock: Add user space tests Mickaël Salaün
2021-03-26  4:30   ` Kees Cook
2021-03-24 19:15 ` [PATCH v31 11/12] samples/landlock: Add a sandbox manager example Mickaël Salaün
2021-03-24 19:15 ` [PATCH v31 12/12] landlock: Add user and kernel documentation Mickaël Salaün
2021-03-26  4:30   ` Kees Cook

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