From: Kees Cook <keescook@chromium.org>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: "Mimi Zohar" <zohar@linux.ibm.com>,
"John Johansen" <john.johansen@canonical.com>,
"Paul Moore" <paul@paul-moore.com>,
"James Morris" <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-security-module@vger.kernel.org,
"Mickaël Salaün" <mic@digikod.net>,
"KP Singh" <kpsingh@kernel.org>,
linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH 6/9] fs: Introduce file_to_perms() helper
Date: Thu, 20 Oct 2022 16:04:22 -0700 [thread overview]
Message-ID: <202210201603.45E53CAF@keescook> (raw)
In-Reply-To: <34084e9a-b4c0-95b7-1132-ca95294c8063@schaufler-ca.com>
On Thu, Oct 20, 2022 at 10:29:08AM -0700, Casey Schaufler wrote:
> On 10/13/2022 3:36 PM, Kees Cook wrote:
> > Extract the logic used by LSM file hooks to be able to reconstruct the
> > access mode permissions from an open.
> >
> > Cc: John Johansen <john.johansen@canonical.com>
> > Cc: Paul Moore <paul@paul-moore.com>
> > Cc: James Morris <jmorris@namei.org>
> > Cc: "Serge E. Hallyn" <serge@hallyn.com>
> > Cc: linux-security-module@vger.kernel.org
> > Signed-off-by: Kees Cook <keescook@chromium.org>
> > ---
> > include/linux/fs.h | 22 ++++++++++++++++++++++
> > security/apparmor/include/file.h | 18 ++++--------------
> > 2 files changed, 26 insertions(+), 14 deletions(-)
>
> Smack uses its own definitions for MAY_SOMETHING. Making
> AppArmor's values global is going to clash. If you want to
> do this there needs to be a grand consolidation. It could
> go in security/lsm_hooks.h. I can't see anyone other than
> Smack wanting MAY_LOCK, so I can't say the concept really
> makes much sense.
I left AppArmor's special ones in apparmor/. This only lifts the common
pre-existing global VFS MAY_* flags. (And only the low nibble's worth).
--
Kees Cook
next prev parent reply other threads:[~2022-10-20 23:04 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 22:36 [PATCH 0/9] integrity: Move hooks into LSM Kees Cook
2022-10-13 22:36 ` [PATCH 1/9] integrity: Prepare for having "ima" and "evm" available in "integrity" LSM Kees Cook
2022-10-14 14:40 ` Mickaël Salaün
2022-10-14 17:59 ` Kees Cook
2022-10-17 9:26 ` Mickaël Salaün
2022-10-17 18:11 ` Kees Cook
2022-10-19 18:33 ` Kees Cook
2022-10-19 19:13 ` Mimi Zohar
2022-10-19 22:37 ` Kees Cook
2022-10-19 14:34 ` Mimi Zohar
2022-10-19 18:28 ` Kees Cook
2022-10-13 22:36 ` [PATCH 2/9] security: Move trivial IMA hooks into LSM Kees Cook
2022-10-19 14:34 ` Mimi Zohar
2022-10-19 18:59 ` Kees Cook
2022-10-19 20:45 ` Mimi Zohar
2022-10-19 23:41 ` Kees Cook
2022-10-20 12:17 ` Mimi Zohar
2022-10-21 14:53 ` Dr. Greg
2022-10-21 15:09 ` Casey Schaufler
2022-10-13 22:36 ` [PATCH 3/9] ima: Move xattr " Kees Cook
2022-10-18 15:07 ` Christian Brauner
2022-10-19 13:24 ` Mimi Zohar
2022-10-13 22:36 ` [PATCH 4/9] ima: Move ima_file_free() " Kees Cook
2022-10-18 15:02 ` Christian Brauner
2022-10-18 15:32 ` Roberto Sassu
2022-10-18 18:29 ` Kees Cook
2022-10-19 6:55 ` Roberto Sassu
2022-10-20 15:47 ` Paul Moore
2022-10-13 22:36 ` [PATCH 5/9] LSM: Introduce inode_post_setattr hook Kees Cook
2022-10-17 10:16 ` kernel test robot
2022-10-17 11:27 ` kernel test robot
2022-10-18 14:50 ` Christian Brauner
2022-10-13 22:36 ` [PATCH 6/9] fs: Introduce file_to_perms() helper Kees Cook
2022-10-18 14:10 ` Christian Brauner
2022-10-18 18:25 ` Kees Cook
2022-10-20 17:29 ` Casey Schaufler
2022-10-20 23:04 ` Kees Cook [this message]
2022-10-13 22:36 ` [PATCH 7/9] ima: Move ima_file_check() into LSM Kees Cook
2022-10-13 22:36 ` [PATCH 8/9] integrity: Move trivial hooks " Kees Cook
2022-10-13 22:36 ` [PATCH 9/9] integrity: Move integrity_inode_get() out of global header Kees Cook
2022-10-13 22:47 ` [PATCH 0/9] integrity: Move hooks into LSM Paul Moore
2022-10-14 1:16 ` Mimi Zohar
2022-10-18 15:31 ` Mickaël Salaün
2022-10-18 15:38 ` Roberto Sassu
2022-10-18 18:31 ` Kees Cook
2022-10-20 17:36 ` Casey Schaufler
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202210201603.45E53CAF@keescook \
--to=keescook@chromium.org \
--cc=casey@schaufler-ca.com \
--cc=jmorris@namei.org \
--cc=john.johansen@canonical.com \
--cc=kpsingh@kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-integrity@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=mic@digikod.net \
--cc=paul@paul-moore.com \
--cc=serge@hallyn.com \
--cc=zohar@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.