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From: Mike Snitzer <snitzer@kernel.org>
To: Matthias Kaehlcke <mka@chromium.org>
Cc: Alasdair Kergon <agk@redhat.com>,
	Kees Cook <keescook@chromium.org>,
	James Morris <jmorris@namei.org>,
	"Serge E . Hallyn" <serge@hallyn.com>,
	linux-kernel@vger.kernel.org, dm-devel@redhat.com,
	Douglas Anderson <dianders@chromium.org>,
	linux-raid@vger.kernel.org, Song Liu <song@kernel.org>,
	linux-security-module@vger.kernel.org,
	Milan Broz <gmazyland@gmail.com>
Subject: Re: [PATCH v7 1/3] dm: Add verity helpers for LoadPin
Date: Wed, 6 Jul 2022 11:06:58 -0400	[thread overview]
Message-ID: <YsWlEmaQsIVUiKC0@redhat.com> (raw)
In-Reply-To: <20220627083512.v7.1.I3e928575a23481121e73286874c4c2bdb403355d@changeid>

On Mon, Jun 27 2022 at 11:35P -0400,
Matthias Kaehlcke <mka@chromium.org> wrote:

> LoadPin limits loading of kernel modules, firmware and certain
> other files to a 'pinned' file system (typically a read-only
> rootfs). To provide more flexibility LoadPin is being extended
> to also allow loading these files from trusted dm-verity
> devices. For that purpose LoadPin can be provided with a list
> of verity root digests that it should consider as trusted.
> 
> Add a bunch of helpers to allow LoadPin to check whether a DM
> device is a trusted verity device. The new functions broadly
> fall in two categories: those that need access to verity
> internals (like the root digest), and the 'glue' between
> LoadPin and verity. The new file dm-verity-loadpin.c contains
> the glue functions.
> 
> Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> Acked-by: Kees Cook <keescook@chromium.org>

Acked-by: Mike Snitzer <snitzer@kernel.org>

WARNING: multiple messages have this Message-ID (diff)
From: Mike Snitzer <snitzer@kernel.org>
To: Matthias Kaehlcke <mka@chromium.org>
Cc: linux-security-module@vger.kernel.org,
	Douglas Anderson <dianders@chromium.org>,
	Kees Cook <keescook@chromium.org>,
	linux-kernel@vger.kernel.org, James Morris <jmorris@namei.org>,
	linux-raid@vger.kernel.org, Song Liu <song@kernel.org>,
	dm-devel@redhat.com, Milan Broz <gmazyland@gmail.com>,
	Alasdair Kergon <agk@redhat.com>,
	"Serge E . Hallyn" <serge@hallyn.com>
Subject: Re: [dm-devel] [PATCH v7 1/3] dm: Add verity helpers for LoadPin
Date: Wed, 6 Jul 2022 11:06:58 -0400	[thread overview]
Message-ID: <YsWlEmaQsIVUiKC0@redhat.com> (raw)
In-Reply-To: <20220627083512.v7.1.I3e928575a23481121e73286874c4c2bdb403355d@changeid>

On Mon, Jun 27 2022 at 11:35P -0400,
Matthias Kaehlcke <mka@chromium.org> wrote:

> LoadPin limits loading of kernel modules, firmware and certain
> other files to a 'pinned' file system (typically a read-only
> rootfs). To provide more flexibility LoadPin is being extended
> to also allow loading these files from trusted dm-verity
> devices. For that purpose LoadPin can be provided with a list
> of verity root digests that it should consider as trusted.
> 
> Add a bunch of helpers to allow LoadPin to check whether a DM
> device is a trusted verity device. The new functions broadly
> fall in two categories: those that need access to verity
> internals (like the root digest), and the 'glue' between
> LoadPin and verity. The new file dm-verity-loadpin.c contains
> the glue functions.
> 
> Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> Acked-by: Kees Cook <keescook@chromium.org>

Acked-by: Mike Snitzer <snitzer@kernel.org>

--
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https://listman.redhat.com/mailman/listinfo/dm-devel


  reply	other threads:[~2022-07-06 15:07 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-27 15:35 [PATCH v7 0/3] LoadPin: Enable loading from trusted dm-verity devices Matthias Kaehlcke
2022-06-27 15:35 ` [dm-devel] " Matthias Kaehlcke
2022-06-27 15:35 ` [PATCH v7 1/3] dm: Add verity helpers for LoadPin Matthias Kaehlcke
2022-06-27 15:35   ` [dm-devel] " Matthias Kaehlcke
2022-07-06 15:06   ` Mike Snitzer [this message]
2022-07-06 15:06     ` Mike Snitzer
2022-06-27 15:35 ` [PATCH v7 2/3] LoadPin: Enable loading from trusted dm-verity devices Matthias Kaehlcke
2022-06-27 15:35   ` [dm-devel] " Matthias Kaehlcke
2022-07-06 15:08   ` Mike Snitzer
2022-07-06 15:08     ` [dm-devel] " Mike Snitzer
2022-06-27 15:35 ` [PATCH v7 3/3] dm: verity-loadpin: Use CONFIG_SECURITY_LOADPIN_VERITY for conditional compilation Matthias Kaehlcke
2022-06-27 15:35   ` [dm-devel] " Matthias Kaehlcke
2022-07-06 15:09   ` Mike Snitzer
2022-07-06 15:09     ` [dm-devel] " Mike Snitzer
2022-07-06 15:11 ` [PATCH v7 0/3] LoadPin: Enable loading from trusted dm-verity devices Mike Snitzer
2022-07-06 15:11   ` [dm-devel] " Mike Snitzer
2022-07-07  3:58   ` Kees Cook
2022-07-07  3:58     ` Kees Cook
2022-07-08 17:47 ` Kees Cook
2022-07-08 17:47   ` [dm-devel] " Kees Cook

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